{"id":4654,"date":"2026-01-20T09:42:07","date_gmt":"2026-01-20T09:42:07","guid":{"rendered":"https:\/\/flj-pcb.com\/?p=4654"},"modified":"2026-01-20T09:47:45","modified_gmt":"2026-01-20T09:47:45","slug":"pcb-emi-analysis-maxwell-current-loops-flux-control","status":"publish","type":"post","link":"https:\/\/flj-pcb.com\/ko\/pcb-emi-analysis-maxwell-current-loops-flux-control\/","title":{"rendered":"PCB EMI \ubd84\uc11d: \ub9e5\uc2a4\uc6f0, \uc804\ub958 \ub8e8\ud504 \ubc0f \ud50c\ub7ed\uc2a4 \uc81c\uc5b4"},"content":{"rendered":"<p>PCB\uc5d0\uc11c\ub294 \uc5ec\ub7ec \uac00\uc9c0 \uc694\uc778\uc73c\ub85c \uc778\ud574 EMI\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 <a href=\"https:\/\/flj-pcb.com\/ko\/pcb-manufacturer\/rf-pcb\/\" data-type=\"page\" data-id=\"2145\">\ubb34\uc120 \uc8fc\ud30c\uc218<\/a> \uc804\ub958, \uacf5\ud1b5 \ubaa8\ub4dc \uc804\uc555, \uc811\uc9c0 \ub8e8\ud504, \uc784\ud53c\ub358\uc2a4 \ubd88\uc77c\uce58 \ubc0f \uc790\uc18d. EMI\ub97c \uc81c\uc5b4\ud558\ub824\uba74 \uc774\ub7ec\ud55c \uc6d0\uc778\uc744 \ub2e8\uacc4\ubcc4\ub85c \ud559\uc2b5\ud558\uace0 \ubcf4\ub4dc\uc5d0 \uc5b4\ub5a4 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294\uc9c0 \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4. \uc804\uc790\uae30 \uc774\ub860\uc5d0\uc11c \uc218\ud559\uc744 \uacf5\ubd80\ud558\uba74 \ub429\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uadf8 \uae38\uc740 \uae38\uace0 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \uc5d4\uc9c0\ub2c8\uc5b4\uc5d0\uac8c\ub294 \uba85\ud655\ud558\uace0 \uac04\ub2e8\ud55c \ub2e8\uc5b4\uac00 \ub354 \uc720\uc6a9\ud569\ub2c8\ub2e4. \uc774 \uae30\uc0ac\uc5d0\uc11c\ub294 PCB\uc758 \u201c\uc804\uae30\uc7a5 \uc18c\uc2a4\u201d, \ub9e5\uc2a4\uc6f0 \ubc29\uc815\uc2dd \uc0ac\uc6a9 \ubc29\ubc95, \uc790\uc18d\uc744 \ucd5c\uc18c\ud654\ud558\ub294 \uc544\uc774\ub514\uc5b4\uc5d0 \ub300\ud574 \ub2e4\ub8f9\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. \uc804\uae30\uc7a5\uc758 \uc18c\uc2a4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1.1 \uc804\uae30 \uc30d\uadf9\uc790 \ubaa8\ub378(\uc2dc\uac04 \uac00\ubcc0)<\/h3>\n\n\n\n<p>\uc804\uae30\uc7a5\uc758 \uc18c\uc2a4\ub294 \uc885\uc885 \uc2dc\uac04\uc5d0 \ub530\ub77c \ubcc0\ud558\ub294 \uc804\uae30 \uc30d\uadf9\uc790\ub85c \ubaa8\ub378\ub9c1\ub429\ub2c8\ub2e4. \uc774\uac83\uc740 \uc790\uae30 \uc18c\uc2a4\uc758 \ubc18\ub300 \uac1c\ub150\uc785\ub2c8\ub2e4. \uc804\uae30 \uc30d\uadf9\uc790\ub294 \uc2dc\uac04\uc5d0 \ub530\ub77c \ubcc0\ud654\ud558\ub294 \ub450 \uac1c\uc758 \uac00\uae4c\uc6b4 \ubc18\ub300\ucabd \uc810 \uc804\ud558\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc30d\uadf9\uc790\uc758 \ub450 \ub05d\uc740 \uc804\ud558\uc758 \ubcc0\ud654\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc774\ub294 \uc804\ub958\uac00 \uc30d\uadf9\uc790\uc758 \uc804\uccb4 \uae38\uc774\ub97c \ub530\ub77c \ud750\ub974\uae30 \ub54c\ubb38\uc5d0 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ubc1c\uc9c4\uae30 \uc2e0\ud638\ub85c \uc885\ub2e8\ub418\uc9c0 \uc54a\uc740 \uc548\ud14c\ub098\ub97c \uad6c\ub3d9\ud558\uc5ec \uc804\uae30 \uc18c\uc2a4\ub97c \ubaa8\ub378\ub9c1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ud68c\ub85c\ub294 \uc804\uc6d0\uc774 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud558\ub294\uc9c0 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc800\uc8fc\ud30c \ud68c\ub85c \uc544\uc774\ub514\uc5b4\ub9cc\uc73c\ub85c\ub294 \uc124\uba85\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc2e0\ud638 \uc804\ud30c \uc18d\ub3c4\ub294 \ubb34\ud55c\ud558\uc9c0 \uc54a\ub2e4\ub294 \uac83\uc744 \uc78a\uc9c0 \ub9c8\uc138\uc694. \uc18d\ub3c4\ub294 \ube44\uc790\uc131 \ubb3c\uc9c8\uc758 \uc720\uc804 \uc0c1\uc218\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc18d\ub3c4\ub294 \uc720\ud55c\ud558\uae30 \ub54c\ubb38\uc5d0 RF \uc804\ub958\uac00 \ud68c\ub85c\uc5d0 \ub098\ud0c0\ub0a9\ub2c8\ub2e4. \uc0ac\ub78c\ub4e4\uc740 \ub54c\ub54c\ub85c \uc804\uc120\uc774 \ubaa8\ub4e0 \uc9c0\uc810\uc5d0\uc11c \ub3d9\uc77c\ud55c \uc804\uc555\uc744 \uac00\uc9c0\uba70 \ud68c\ub85c\uac00 \ub9e4 \uc21c\uac04 \ud56d\uc0c1 \uade0\ud615\uc744 \uc774\ub8ec\ub2e4\uace0 \uac00\uc815\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc RF\uc5d0\uc11c\ub294 \uadf8\ub807\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1.2 \uc804\uc790\uae30\uc7a5\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc8fc\uc694 \uc694\uc778<\/h3>\n\n\n\n<p>\uc804\uae30 \uc30d\uadf9\uc790\uc758 \uc804\uc790\uae30\uc7a5\uc740 \ub124 \uac00\uc9c0 \uc694\uc18c\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ub8e8\ud504\uc758 \uc804\ub958 \uc9c4\ud3ed\uc785\ub2c8\ub2e4: \ud544\ub4dc\ub294 \uc30d\uadf9\uc790\uc5d0 \ud750\ub974\ub294 \uc804\ub958\uc5d0 \ube44\ub840\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ub2e4\uc774\ud3f4 \uadf9\uc131 \ubc0f \uce21\uc815 \uc548\ud14c\ub098: \ub2e4\uc774\ud3f4\uc758 \uadf9\uc131\uc740 \uce21\uc815 \ub3c4\uad6c\uc758 \uc548\ud14c\ub098 \uadf9\uc131\uacfc \uc77c\uce58\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\uac83\uc740 \uc790\uae30 \uc18c\uc2a4\uc640 \uac19\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uc30d\uadf9\uc790 \ud06c\uae30: \ud544\ub4dc\ub294 \ud604\uc7ac \uc694\uc18c\uc758 \uae38\uc774\uc5d0 \ube44\ub840\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc120\uc758 \uae38\uc774\ub294 \ud30c\uc7a5\uc758 \uc77c\ubd80\uc5d0 \ubd88\uacfc\ud574\uc57c \ud569\ub2c8\ub2e4. \ub2e4\uc774\ud3f4\uc774 \ud074\uc218\ub85d \uc548\ud14c\ub098\uc5d0\uc11c \uce21\uc815\ub41c \uc8fc\ud30c\uc218\uac00 \ub0ae\uc544\uc9d1\ub2c8\ub2e4. \uc8fc\uc5b4\uc9c4 \ud06c\uae30\uc5d0 \ub300\ud574 \uc548\ud14c\ub098\ub294 \ud2b9\uc815 \uc8fc\ud30c\uc218\uc5d0\uc11c \uacf5\uc9c4\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uac70\ub9ac: \uc804\uae30\uc7a5\uacfc \uc790\uae30\uc7a5\uc740 \uc11c\ub85c \uc5f0\uacb0\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uadf8 \uac15\ub3c4\ub294 \uac70\ub9ac\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc6d0\uac70\ub9ac \ud544\ub4dc\uc5d0\uc11c\ub294 \ub8e8\ud504(\uc790\uae30) \uc18c\uc2a4\uc640 \uac19\uc740 \ub3d9\uc791\uc744 \ud558\uba70 \uc804\uc790\uae30 \ud3c9\uba74\ud30c\ub97c \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc810 \uc18c\uc2a4\uc5d0 \uac00\uae4c\uc6b8\uc218\ub85d \uc790\uae30\uc7a5\uc758 \uac70\ub9ac \uc758\uc874\uc131\uc774 \ub354 \uac15\ud574\uc9d1\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">1.3 \uadfc\uac70\ub9ac \ud544\ub4dc\uc640 \uc6d0\uac70\ub9ac \ud544\ub4dc \uad00\uacc4<\/h3>\n\n\n\n<p>\uadfc\uac70\ub9ac \uc7a5\uacfc \uc6d0\uac70\ub9ac \uc7a5\uc5d0\ub294 \uc790\uae30 \ubd80\ubd84\uacfc \uc804\uae30 \ubd80\ubd84\uc774 \ubaa8\ub450 \ud3ec\ud568\ub429\ub2c8\ub2e4. \ubaa8\ub4e0 \ud30c\ub3d9\uc740 \uc804\uae30\uc801 \ubd80\ubd84\uacfc \uc790\uae30\uc801 \ubd80\ubd84\uc744 \uacb0\ud569\ud569\ub2c8\ub2e4. \uc774 \ud63c\ud569\uc774 \ubc14\ub85c \ud3ec\uc778\ud305 \ubca1\ud130\uc785\ub2c8\ub2e4. \uc0ac\uc2e4 \uc21c\uc218\ud55c \u201c\uc804\uae30\ud30c\u201d \ub610\ub294 \u201c\uc790\uae30\ud30c\u201d\ub9cc\uc740 \uc874\uc7ac\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uba87 \ud30c\uc7a5 \ub5a8\uc5b4\uc9c4 \uc791\uc740 \uc548\ud14c\ub098\uc758 \uacbd\uc6b0 \ud30c\uba74\uc774 \ud3c9\uba74\ucc98\ub7fc \ubcf4\uc774\uae30 \ub54c\ubb38\uc5d0 \uc6b0\ub9ac\ub294 \ud3c9\uba74\ud30c\ub97c \uce21\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc791\uc740 \uadf8\ub9bc\uc774 \ub3c4\uc6c0\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc5d0\ub294 \ud30c\ub3d9 \uc784\ud53c\ub358\uc2a4\uc640 \uac70\ub9ac\uac00 \ud45c\uc2dc\ub429\ub2c8\ub2e4. \ub77c\ubca8\uc5d0\ub294 \ud30c\ub3d9 \uc784\ud53c\ub358\uc2a4, E = 1\/r, H = 1\/r\u00b2\uc778 \uc804\uae30\uc7a5 \uc6b0\uc138 \uc601\uc5ed, Z = 377\u03a9\uc778 \ud3c9\uba74\ud30c, \uc810\uadfc\uc120, \uc2e4\uc218\ud615, \uc790\uae30\uc7a5 \uc6b0\uc138 \uc601\uc5ed, \uc804\uc774 \uc601\uc5ed, \uadfc\uac70\ub9ac \ud544\ub4dc H = 1\/r\u00b3, E = 1\/r\u00b2, \uc6d0\uac70\ub9ac \ud544\ub4dc, \uc218\ud3c9\ucd95 0.1, 0.5, 1.0, 5.0\uc774 \ud45c\uc2dc\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Relationship-Between-Wave-Impedance-and-Distance.webp\" alt=\"Relationship Between Wave Impedance and Distance\" class=\"wp-image-4660\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Relationship-Between-Wave-Impedance-and-Distance.webp 800w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Relationship-Between-Wave-Impedance-and-Distance-300x200.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Relationship-Between-Wave-Impedance-and-Distance-768x512.webp 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Relationship-Between-Wave-Impedance-and-Distance-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n\n\n<p>\uc774 \ubcf4\uae30\ub294 \uc548\ud14c\ub098\uac00 \ubcf4\ub294 \ubb3c\ub9ac\uc801 \u201c\ud504\ub85c\ud30c\uc77c\u201d\uc785\ub2c8\ub2e4. \uac15\uc5d0 \ub3cc\uc744 \ub358\uc838 \uc794\ubb3c\uacb0\uc744 \ubcf4\ub294 \uac83\uacfc \uac19\ub2e4\uace0 \uc0dd\uac01\ud558\uba74 \ub429\ub2c8\ub2e4. \uc7a5\uc740 \uc810 \uc18c\uc2a4\uc5d0\uc11c \ube5b\uc758 \uc18d\ub3c4\ub85c \ubc29\uc0ac\ub429\ub2c8\ub2e4. \uc18d\ub3c4\ub294 \uc720\uc804 \uc0c1\uc218\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc804\uae30\uc7a5\uc758 \ub2e8\uc704\ub294 V\/m\uc785\ub2c8\ub2e4. \uc790\uae30\uc7a5\uc758 \ub2e8\uc704\ub294 A\/m\uc785\ub2c8\ub2e4. E\uc640 H\uc758 \ube44\uc728\uc740 \uc790\uc720 \uacf5\uac04 \uc784\ud53c\ub358\uc2a4\uc785\ub2c8\ub2e4. \uc790\uc720 \uacf5\uac04\uc758 \ud3c9\uba74\ud30c\uc758 \uacbd\uc6b0 \ud30c\ub3d9 \uc784\ud53c\ub358\uc2a4 Z\u2080\ub294 \uc77c\uc815\ud569\ub2c8\ub2e4. \uac70\ub9ac\ub098 \ud3ec\uc778\ud2b8 \uc18c\uc2a4\uc5d0 \uc758\uc874\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc790\uc720 \uacf5\uac04\uc758 \ud3c9\uba74\ud30c\ub294 \ud3c9\ubc29\ubbf8\ud130\ub2f9 \uc640\ud2b8 \ub2e8\uc704\ub85c \uc5d0\ub108\uc9c0\ub97c \uc804\ub2ec\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1.4 \ub178\uc774\uc988 \ucee4\ud50c\ub9c1 \ubc0f \uc77c\uad04 \ucef4\ud3ec\ub10c\ud2b8 \ubaa8\ub378<\/h3>\n\n\n\n<p>\ub300\ubd80\ubd84\uc758 \ub9e5\uc2a4\uc6f0 \ubc29\uc815\uc2dd \uc0ac\uc6a9 \uc2dc\uc5d0\ub294 \ub178\uc774\uc988 \ucee4\ud50c\ub9c1\uc744 \ub3d9\ub4f1\ud55c \ub369\uc5b4\ub9ac \uad6c\uc131 \uc694\uc18c\ub85c \ubaa8\ub378\ub9c1\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ub450 \ub3c4\uccb4 \uc0ac\uc774\uc758 \uc2dc\uac04\uc5d0 \ub530\ub77c \ubcc0\ud558\ub294 \uc804\uae30\uc7a5\uc740 \ucee4\ud328\uc2dc\ud130\uc640 \uac19\uc2b5\ub2c8\ub2e4. \ub3d9\uc77c\ud55c \ub450 \ub3c4\uccb4 \uc0ac\uc774\uc758 \uc2dc\uac04\uc5d0 \ub530\ub77c \ubcc0\ud558\ub294 \uc790\uae30\uc7a5\uc740 \uc0c1\ud638 \uc778\ub355\ud134\uc2a4\uc640 \uac19\uc2b5\ub2c8\ub2e4. \uadf8\ub9bc\uc740 \uc774 \ub450 \uac00\uc9c0 \ub178\uc774\uc988 \uacb0\ud569 \uacbd\ub85c\ub97c \ubcf4\uc5ec \uc90d\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Noise-Coupling-Mechanisms.webp\" alt=\"Noise Coupling Mechanisms\" class=\"wp-image-4657\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Noise-Coupling-Mechanisms.webp 800w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Noise-Coupling-Mechanisms-300x200.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Noise-Coupling-Mechanisms-768x512.webp 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Noise-Coupling-Mechanisms-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>\uc774\ub7ec\ud55c \ub178\uc774\uc988 \ubaa8\ub378\uc774 \uc815\ud655\ud558\ub824\uba74 \uc2e0\ud638 \ud30c\uc7a5\uc5d0 \ube44\ud574 \ud68c\ub85c\uac00 \uc791\uc544\uc57c \ud569\ub2c8\ub2e4. \uadf8\ub807\uc9c0 \uc54a\uc740 \uacbd\uc6b0\uc5d0\ub3c4 \ub369\uc5b4\ub9ac \uad6c\uc131 \uc694\uc18c \ubaa8\ub378\uc744 \uc0ac\uc6a9\ud558\uc5ec EMC\ub97c \uc124\uba85\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc65c \uadf8\ub7f4\uae4c\uc694? \ub9e5\uc2a4\uc6f0 \ubc29\uc815\uc2dd\uc740 \ubcf5\uc7a1\ud55c \uacbd\uacc4\ub85c \uc778\ud574 \ub9ce\uc740 \uc2e4\uc81c \uc0ac\ub840\uc5d0 \uc801\uc6a9\ud558\uae30 \uc5b4\ub835\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ub369\uc5b4\ub9ac \ubaa8\ub378\uc774 \ub300\ub7b5\uc801\uc73c\ub85c \uc815\ud655\ud574 \ubcf4\uc778\ub2e4\uba74 \uc720\uc6a9\ud569\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \uac1c\ubcc4 \ucef4\ud3ec\ub10c\ud2b8\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc548\uc815\uc801\uc73c\ub85c \uc791\ub3d9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc218\uce58 \ubaa8\ub378\uc774 \uc2dc\uc2a4\ud15c \ub9e4\uac1c\ubcc0\uc218\uc5d0\uc11c \ub178\uc774\uc988\uac00 \uc5b4\ub5bb\uac8c \ubc1c\uc0dd\ud558\ub294\uc9c0 \ud56d\uc0c1 \ubcf4\uc5ec\uc8fc\ub294 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \ubaa8\ub378\uc774 \ub2f5\uc774 \ub420 \uc218 \uc788\uc9c0\ub9cc \uc2dc\uc2a4\ud15c \ub9e4\uac1c\ubcc0\uc218\ub97c \uc54c \uc218 \uc5c6\uac70\ub098, \ucc3e\uc744 \uc218 \uc5c6\uac70\ub098, \ubcf4\uc774\uc9c0 \uc54a\uc744 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9 \uac00\ub2a5\ud55c \ubaa8\ub378 \uc911\uc5d0\uc11c \uc77c\uad04 \uad6c\uc131 \uc694\uc18c \ubaa8\ub378\uc774 \uac00\uc7a5 \uc2e4\uc6a9\uc801\uc778 \uc120\ud0dd\uc778 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1.5 PCB \ub808\uc774\uc544\uc6c3\uc758 \uc911\uc694\uc131<\/h3>\n\n\n\n<p>\uc774 \uc774\ub860\uc744 \uc5f0\uad6c\ud558\ub294 \uc774\uc720 <a href=\"https:\/\/flj-pcb.com\/ko\/pcb-design\/\" data-type=\"page\" data-id=\"3488\">PCB \ub808\uc774\uc544\uc6c3<\/a>? \uac04\ub2e8\ud55c \ub300\ub2f5\uc740 \uc804\uc790\uae30\uc7a5\uc774 \uc5b4\ub5bb\uac8c \ub9cc\ub4e4\uc5b4\uc9c0\ub294\uc9c0 \uc54c\uc544\uc57c \ud55c\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. \uadf8\ub7ec\uba74 PCB\uc758 RF \ud544\ub4dc\ub97c \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc989, \ud68c\ub85c\uc5d0\uc11c RF \uc804\ub958\ub97c \uc904\uc5ec\uc57c \ud569\ub2c8\ub2e4. RF \uc804\ub958\ub294 \uc2e0\ud638 \ubd84\ubc30 \ub124\ud2b8\uc6cc\ud06c\uc5d0 \uc5f0\uacb0\ub418\uc5b4 \uc6b0\ud68c \ubc0f \uacb0\ud569\ub429\ub2c8\ub2e4. RF \uc804\ub958\ub294 \ucd5c\uc885\uc801\uc73c\ub85c \uace0\uc870\ud30c \ubc0f \uae30\ud0c0 \ub514\uc9c0\ud138 \uc2e0\ud638 \ucf58\ud150\uce20\ub97c \ud615\uc131\ud569\ub2c8\ub2e4. \uc2e0\ud638 \ubd84\ubc30 \ub124\ud2b8\uc6cc\ud06c\ub294 \uac00\ub2a5\ud55c \ud55c \uc791\uc544\uc57c \ud569\ub2c8\ub2e4. \uadf8\ub7ec\uba74 RF \ub9ac\ud134 \uc804\ub958 \ub8e8\ud504\uc758 \uba74\uc801\uc774 \uc904\uc5b4\ub4ed\ub2c8\ub2e4. \ubc14\uc774\ud328\uc2a4\uc640 \ucee4\ud50c\ub9c1\uc740 \ud070 \uc804\ub958\uc640 \uad00\ub828\uc774 \uc788\uc73c\uba70 \ubc30\uc804 \ub124\ud2b8\uc6cc\ud06c\ub97c \ud1b5\ud574 \ubc1c\uc0dd\ud574\uc57c \ud569\ub2c8\ub2e4. \uc815\uc758\uc0c1 \ubc30\uc804 \ub124\ud2b8\uc6cc\ud06c\uc5d0\ub294 \ub113\uc740 RF \ub9ac\ud134 \ub8e8\ud504 \uc601\uc5ed\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"666\" height=\"500\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Noise-Coupling-Method.webp\" alt=\"Noise Coupling Method\" class=\"wp-image-4658\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Noise-Coupling-Method.webp 666w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Noise-Coupling-Method-300x225.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Noise-Coupling-Method-16x12.webp 16w\" sizes=\"(max-width: 666px) 100vw, 666px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">2. \ub9e5\uc2a4\uc6f0 \ubc29\uc815\uc2dd \uc801\uc6a9\ud558\uae30<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 \ub9e5\uc2a4\uc6f0 \ubc29\uc815\uc2dd\uacfc \uc634\uc758 \ubc95\uce59 \uc5f0\uacb0\ud558\uae30<\/h3>\n\n\n\n<p>\uc704\uc5d0\uc11c \ub9e5\uc2a4\uc6f0\uc758 \uae30\ubcf8 \uc544\uc774\ub514\uc5b4\ub97c \uc18c\uac1c\ud588\uc2b5\ub2c8\ub2e4. \uadf8\ub807\ub2e4\uba74 \uc774 \ubb3c\ub9ac\ud559 \ubc0f \ubbf8\uc801\ubd84 \uc9c0\uc2dd\uc744 PCB\uc758 EMC\uc5d0 \uc5b4\ub5bb\uac8c \uc801\uc6a9\ud560 \uc218 \uc788\uc744\uae4c\uc694? PCB \ud2b8\ub808\uc774\uc2a4\uc5d0 \uc0ac\uc6a9\ud558\ub824\uba74 \ub9e5\uc2a4\uc6f0\uc758 \ubc29\uc815\uc2dd\uc744 \ub2e8\uc21c\ud654\ud574\uc57c \ud569\ub2c8\ub2e4. \ub9e5\uc2a4\uc6f0\uc758 \ubc29\uc815\uc2dd\uc744 \uc634\uc758 \ubc95\uce59\uc5d0 \uc5f0\uacb0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc2dc\uac04 \uc601\uc5ed\uc5d0\uc11c\uc758 \uc634\uc758 \ubc95\uce59:<\/p>\n\n\n\n<p>V = I \u00d7 R.<\/p>\n\n\n\n<p>\uc8fc\ud30c\uc218 \uc601\uc5ed\uc5d0\uc11c\uc758 \uc634\uc758 \ubc95\uce59:<\/p>\n\n\n\n<p>V_rf = I_rf \u00d7 Z.<\/p>\n\n\n\n<p>\uc5ec\uae30\uc11c V\ub294 \uc804\uc555, I\ub294 \uc804\ub958, R\uc740 \uc800\ud56d, Z\ub294 \uc784\ud53c\ub358\uc2a4(Z = R + jX)\uc785\ub2c8\ub2e4. rf\ub294 \ubb34\uc120 \uc8fc\ud30c\uc218 \uc5d0\ub108\uc9c0\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc784\ud53c\ub358\uc2a4\uac00 \uace0\uc815\ub41c PCB \ud2b8\ub808\uc774\uc2a4\uc5d0 RF \uc804\ub958\uac00 \uc874\uc7ac\ud558\uba74 RF \uc804\uc555\uc774 \uc0dd\uc131\ub429\ub2c8\ub2e4. RF \uc804\uc555\uc740 RF \uc804\ub958\uc5d0 \ube44\ub840\ud569\ub2c8\ub2e4. \ucc38\uace0: \ud30c\ud615 \ubaa8\ub378\uc5d0\uc11c R\uc740 Z\ub85c \ub300\uccb4\ub418\uba70 Z\ub294 \ubcf5\uc18c\uc218\uc785\ub2c8\ub2e4. \uc800\ud56d(\uc2e4\uc218)\uacfc \ub9ac\uc561\ud134\uc2a4(\uac00\uc0c1)\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 \uc804\uc120\/PCB \ud2b8\ub808\uc774\uc2a4\uc758 \uc784\ud53c\ub358\uc2a4 \uacf5\uc2dd<\/h3>\n\n\n\n<p>\uc784\ud53c\ub358\uc2a4\ub97c \uc791\uc131\ud558\ub294 \ubc29\ubc95\uc740 \ud3c9\uba74\ud30c \uc784\ud53c\ub358\uc2a4\ub97c \ubcfc \uac83\uc778\uc9c0 \ud68c\ub85c \uc784\ud53c\ub358\uc2a4\ub97c \ubcfc \uac83\uc778\uc9c0\uc5d0 \ub530\ub77c \uc5ec\ub7ec \uac00\uc9c0\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc804\uc120\uc774\ub098 PCB \ud2b8\ub808\uc774\uc2a4\uc758 \uacbd\uc6b0 \ub2e4\uc74c\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<p>\uac01\ub3c4 \uc8fc\ud30c\uc218:<\/p>\n\n\n\n<p>\u03c9 = 2\u03c0f.<\/p>\n\n\n\n<p>\uc720\ub3c4 \ub9ac\uc561\ud134\uc2a4:<\/p>\n\n\n\n<p>X_L = 2\u03c0fL.<\/p>\n\n\n\n<p>\uc6a9\ub7c9\uc131 \ub9ac\uc561\ud134\uc2a4:<\/p>\n\n\n\n<p>X_C = 1 \/ (2\u03c0fC).<\/p>\n\n\n\n<p>\uc784\ud53c\ub358\uc2a4:<\/p>\n\n\n\n<p>Z = R + jX_L + 1\/(jX_C) = R + j\u03c9L + 1\/(j\u03c9C).<\/p>\n\n\n\n<p>\ud398\ub77c\uc774\ud2b8 \ube44\ub4dc \uc628 \ub9ac\ub4dc, \uc800\ud56d\uae30, \ucee4\ud328\uc2dc\ud130 \ub610\ub294 \uae30\uc0dd\uc774 \uc788\ub294 \uc7a5\uce58\uc640 \uac19\uc774 \ubd80\ud488\uc5d0 \uc54c\ub824\uc9c4 \uc800\ud56d\uacfc \uc778\ub355\ud134\uc2a4\uac00 \uc788\ub294 \uacbd\uc6b0 \uc8fc\ud30c\uc218\uc5d0 \ub530\ub77c \uc784\ud53c\ub358\uc2a4\uac00 \ubcc0\ud55c\ub2e4\ub294 \uc810\uc744 \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.3 \ud604\uc7ac \uacbd\ub85c \uc120\ud0dd \uba54\ucee4\ub2c8\uc998<\/h3>\n\n\n\n<p>\uba87 kHz \uc774\uc0c1\uc5d0\uc11c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub9ac\uc561\ud134\uc2a4\uac00 R\ubcf4\ub2e4 \ucee4\uc9c0\uc9c0\ub9cc \ud56d\uc0c1 \uadf8\ub7f0 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \uc804\ub958\ub294 \uc784\ud53c\ub358\uc2a4\uac00 \uac00\uc7a5 \uc791\uc740 \uacbd\ub85c\ub97c \uc120\ud0dd\ud569\ub2c8\ub2e4. \uba87 kHz \uc774\ud558\uc5d0\uc11c\ub294 \uc800\ud56d\uc774 \uac00\uc7a5 \uc791\uc740 \uacbd\ub85c\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uba87 kHz \uc774\uc0c1\uc5d0\uc11c\ub294 \ub9ac\uc561\ud134\uc2a4\uac00 \uc9c0\ubc30\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub9ce\uc740 \ud68c\ub85c\uac00 kHz \uc774\uc0c1\uc5d0\uc11c \uc791\ub3d9\ud558\ubbc0\ub85c \u201c\uc804\ub958\ub294 \uc800\ud56d\uc774 \uac00\uc7a5 \uc801\uc740 \uacbd\ub85c\ub97c \uc120\ud0dd\ud55c\ub2e4\u201d\ub294 \ub2e8\uc21c\ud55c \uc0dd\uac01\uc73c\ub85c\ub294 \ub354 \uc774\uc0c1 \uc804\uc1a1 \ub77c\uc778\uc5d0\uc11c \uc804\ub958\uac00 \ud750\ub974\ub294 \ubc29\uc2dd\uc744 \uc644\uc804\ud788 \uc124\uba85\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>10kHz \uc774\uc0c1\uc758 \uc804\ub958\ub97c \uc804\ub2ec\ud558\ub294 \ub3c4\uccb4\uc758 \uacbd\uc6b0 \uc804\ub958\ub294 \uc784\ud53c\ub358\uc2a4\uac00 \uac00\uc7a5 \ub0ae\uc740 \uacbd\ub85c\ub97c \uc120\ud0dd\ud569\ub2c8\ub2e4. \ubd80\ud558 \uc784\ud53c\ub358\uc2a4\uac00 \uc804\uc120, \ucf00\uc774\ube14 \ub610\ub294 \ud2b8\ub808\uc774\uc2a4\uc5d0 \uc5f0\uacb0\ub418\uace0 \uc804\uc1a1 \uacbd\ub85c\uc758 \ubcd1\ub82c \ucee4\ud328\uc2dc\ud134\uc2a4\ubcf4\ub2e4 \ud070 \uacbd\uc6b0 \uc778\ub355\ud134\uc2a4\uac00 \uc6b0\uc138\ud569\ub2c8\ub2e4. \uc5f0\uacb0\ub41c \ubaa8\ub4e0 \uc804\uc120\uc758 \ub2e8\uba74\uc801\uc774 \ube44\uc2b7\ud55c \uacbd\uc6b0 \ub8e8\ud504 \uba74\uc801\uc774 \uac00\uc7a5 \uc791\uc740 \uacbd\ub85c\uc758 \uc778\ub355\ud134\uc2a4\uac00 \uac00\uc7a5 \uc791\uc2b5\ub2c8\ub2e4. \ub8e8\ud504 \uba74\uc801\uc774 \uc791\uc744\uc218\ub85d \uc778\ub355\ud134\uc2a4\ub3c4 \uc791\uc544\uc9d1\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc804\ub958\ub294 \uadf8\ub7f0 \uc2dd\uc73c\ub85c \ud750\ub985\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.4 RF \uc5d0\ub108\uc9c0\uc5d0 \ub300\ud55c \ud2b8\ub808\uc774\uc2a4 \uc778\ub355\ud134\uc2a4\uc758 \uc601\ud5a5<\/h3>\n\n\n\n<p>\ubaa8\ub4e0 \ud2b8\ub808\uc774\uc2a4\uc5d0\ub294 \uc720\ud55c\ud55c \uc784\ud53c\ub358\uc2a4\uac00 \uc788\uc2b5\ub2c8\ub2e4. \ud2b8\ub808\uc774\uc2a4 \uc778\ub355\ud134\uc2a4\ub294 RF \uc5d0\ub108\uc9c0\uac00 PCB\uc5d0 \uc874\uc7ac\ud560 \uc218 \uc788\ub294 \uc720\uc77c\ud55c \uc774\uc720\uc785\ub2c8\ub2e4. \uc2e4\ub9ac\ucf58 \uce69\uacfc \uc2e4\uc7a5 \ud328\ub4dc \uc0ac\uc774\uc758 \uae34 \ubcf8\ub4dc \uc640\uc774\uc5b4\ub3c4 RF \uc5d0\ub108\uc9c0\ub97c \uc720\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud2b9\ud788 \ud2b8\ub808\uc774\uc2a4\uac00 \uae34 \uacbd\uc6b0 \ubcf4\ub4dc\uc758 \ub77c\uc6b0\ud305\uc740 \ub192\uc740 \uc778\ub355\ud134\uc2a4\ub97c \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud2b8\ub808\uc774\uc2a4\uac00 \uae38\ub2e4\ub294 \uac83\uc740 \uc655\ubcf5 \uae38\uc774\uac00 \uae38\ub2e4\ub294 \uac83\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \ud2b8\ub808\uc774\uc2a4\uc5d0 \uc2dc\uac04 \uc9c0\uc5f0\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc774\uc804 \uc2e0\ud638\uac00 \ub3cc\uc544\uc624\uae30 \uc804\uc5d0 \ud558\ub098\uc758 \uc2e0\ud638\uac00 \uc2dc\uc791\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc8fc\ud30c\uc218 \ub3c4\uba54\uc778\uc5d0\uc11c \ud2b8\ub808\uc774\uc2a4\uc5d0 \uc874\uc7ac\ud558\ub294 \uc8fc\ud30c\uc218\uc5d0\uc11c \ucd1d \uae38\uc774\uac00 \uc57d \u03bb\/10\ubcf4\ub2e4 \ud06c\uba74 \ud2b8\ub808\uc774\uc2a4\uac00 \u201c\uae38\ub2e4\u201d\uace0 \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uac04\ub2e8\ud788 \ub9d0\ud574, \uc784\ud53c\ub358\uc2a4\ub97c \uac00\ub85c\uc9c0\ub974\ub294 RF \uc804\uc555\uc740 RF \uc804\ub958\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4. \uc774 RF \uc804\ub958\ub294 \uc790\uc720 \uacf5\uac04\uc73c\ub85c \uc5d0\ub108\uc9c0\ub97c \ubc29\ucd9c\ud558\uc5ec EMC \uc81c\ud55c\uc744 \uc704\ubc18\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc608\ub294 \ub9e5\uc2a4\uc6f0\uc758 \ubc29\uc815\uc2dd\uc744 \uac04\ub2e8\ud55c \uc218\ud559\uc744 \ud1b5\ud574 PCB \ub77c\uc6b0\ud305\uacfc \uc5f0\uacb0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.5 \uc790\uc18d \ubc29\ud5a5\uc5d0 \ub300\ud55c \uc624\ub978\ucabd \uaddc\uce59<\/h3>\n\n\n\n<p>\ub9e5\uc2a4\uc6f0\uc740 \uc804\ud558\ub97c \uc774\ub3d9\uc2dc\ud0a4\uba74 \uc804\ub958\uac00 \uc0dd\uae34\ub2e4\uace0 \ub9d0\ud569\ub2c8\ub2e4. \uc804\ub958\ub294 \uc790\uae30\uc7a5\uc744 \ub9cc\ub4ed\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc790\uc18d\uc758 \uc790\uae30\uc120\uc740 \ud754\uc801\uc744 \ub530\ub77c\uac11\ub2c8\ub2e4. \uc624\ub978\ucabd \uaddc\uce59\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc790\uc18d \ubc29\ud5a5\uc744 \ucc3e\uc2b5\ub2c8\ub2e4. \uc5c4\uc9c0 \uc190\uac00\ub77d\uc73c\ub85c \uc804\ub958 \ubc29\ud5a5\uc744 \uac00\ub9ac\ud0b5\ub2c8\ub2e4. \uc190\uac00\ub77d\uc744 \uad6c\ubd80\ub9ac\uba74 \ud754\uc801 \uc8fc\uc704\uc758 \uc790\uae30\uc7a5\uc774 \ud45c\uc2dc\ub429\ub2c8\ub2e4. \uc2dc\uac04\uc5d0 \ub530\ub77c \ubcc0\ud558\ub294 \uc790\uae30\uc7a5\uc740 \uc218\uc9c1 \uc804\uae30\uc7a5\uc744 \ub9cc\ub4ed\ub2c8\ub2e4. RF \ubc29\uc0ac\uc120\uc740 \uc774 \uc790\uae30\uc7a5\uacfc \uc804\uae30\uc7a5\uc758 \ud63c\ud569\uc785\ub2c8\ub2e4. \uc804\uacc4\ub294 \ubc29\uc0ac \ub610\ub294 \uc5f0\uacb0\ub41c \ucf00\uc774\ube14\uc744 \ub530\ub77c \uc804\ub3c4\ub97c \ud1b5\ud574 PCB\ub97c \ub5a0\ub0a0 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc790\uae30\uc7a5\uc740 \ud3d0\uc1c4 \ub8e8\ud504 \uacbd\uacc4\ub97c \ub530\ub77c \ud750\ub985\ub2c8\ub2e4. PCB\uc5d0\uc11c \uc18c\uc2a4\ub294 \ud2b8\ub808\uc774\uc2a4\ub97c \ud1b5\ud574 \uc18c\uc2a4\uc5d0\uc11c \ubd80\ud558\ub85c RF \uc804\ub958\ub97c \uad6c\ub3d9\ud569\ub2c8\ub2e4. RF \uc804\ub958\ub294 \ubc18\ub4dc\uc2dc \uc18c\uc2a4\ub85c \ub418\ub3cc\uc544\uac11\ub2c8\ub2e4(\uc554\ud398\uc5b4\uc758 \ubc95\uce59). \uc774\uac83\uc774 RF \uc804\ub958 \ub8e8\ud504\ub97c \ub9cc\ub4ed\ub2c8\ub2e4. \ub8e8\ud504\ub294 \ubc18\ub4dc\uc2dc \uc6d0\ud615\uc77c \ud544\uc694\ub294 \uc5c6\uc9c0\ub9cc \ub098\uc120\ud615\uc778 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \ubcf5\uadc0 \uacbd\ub85c\uac00 \ud3d0\uc1c4 \ub8e8\ud504\ub97c \uc0dd\uc131\ud558\uae30 \ub54c\ubb38\uc5d0 \uc790\uae30\uc7a5\uc744 \ub9cc\ub4ed\ub2c8\ub2e4. \uc790\uae30\uc7a5\uc740 \ubc29\uc0ac \uc804\uae30\uc7a5\uc744 \ub9cc\ub4ed\ub2c8\ub2e4. \uadfc\uac70\ub9ac \uc790\uae30\uc7a5\uc5d0\uc11c\ub294 \uc790\uc131 \ubd80\ubd84\uc774 \uc6b0\uc138\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc6d0\uac70\ub9ac \ud544\ub4dc\uc5d0\uc11c E\/H(\ud30c\ub3d9 \uc784\ud53c\ub358\uc2a4) \ube44\uc728\uc740 \uc57d 120\u03c0 \u03a9 \ub610\ub294 377\u03a9\uc774\uba70, \uc774 \uac12\uc740 \uc18c\uc2a4\uc5d0 \uc758\uc874\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc6d0\uac70\ub9ac\uc5d0\uc11c\ub294 \ub8e8\ud504 \uc548\ud14c\ub098\uc640 \ubbfc\uac10\ud55c \uc218\uc2e0\uae30\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc790\uae30 \ubd80\ubd84\uc744 \uce21\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. E\uac00 V\/m\uc778 \uacbd\uc6b0 \uc218\uc2e0 \uc804\ub958\ub294 A\/m \ub2e8\uc704\ub85c E\/(120\u03c0)\uc785\ub2c8\ub2e4. \uadfc\uac70\ub9ac \ud544\ub4dc\uc5d0\uc11c\ub294 \uc801\uc808\ud55c \ub3c4\uad6c\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc804\uae30 \ubd80\ubd84\uc744 \uce21\uc815\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"449\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Right-Hand-Rule.webp\" alt=\"Right-Hand Rule\" class=\"wp-image-4661\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Right-Hand-Rule.webp 800w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Right-Hand-Rule-300x168.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Right-Hand-Rule-768x431.webp 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Right-Hand-Rule-18x10.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">2.6 \ud3d0\uc1c4 \ub8e8\ud504 \ud68c\ub85c\uc758 \uc911\uc694\uc131<\/h3>\n\n\n\n<p>PCB\uc758 RF\uc5d0 \ub300\ud55c \ub610 \ub2e4\ub978 \uac04\ub2e8\ud55c \ubcf4\uae30\ub294 \uadf8\ub9bc\uc5d0 \ud45c\uc2dc\ub41c \uc77c\ubc18\uc801\uc778 \ud68c\ub85c\uc5d0\uc11c \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2dc\uac04 \ub3c4\uba54\uc778 \ubc0f \uc8fc\ud30c\uc218 \ub3c4\uba54\uc778 \ubd84\uc11d\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \ud0a4\ub974\ud788\ud638\ud504\uc758 \ubc95\uce59\uacfc \uc554\ud398\uc5b4 \ubc95\uce59\uc5d0 \ub530\ub974\uba74 \ud68c\ub85c\uac00 \uc791\ub3d9\ud558\ub824\uba74 \ud3d0\uc1c4 \ub8e8\ud504\uac00 \uc874\uc7ac\ud574\uc57c \ud569\ub2c8\ub2e4. \ud0a4\ub974\ud788\ud638\ud504\uc758 \uc804\uc555 \ubc95\uce59\uc5d0 \ub530\ub974\uba74 \ubaa8\ub4e0 \ud3d0\uc1c4 \uacbd\ub85c \uc8fc\ubcc0\uc758 \uc804\uc555 \ud569\uc740 0\uc785\ub2c8\ub2e4. \uc554\ud398\uc5b4\uc758 \ubc95\uce59\uc740 \uc804\ub958\uc640 \uae30\ud558\ud559\uc801 \uad6c\uc870\uc5d0 \ub530\ub77c \uc804\ub958\uac00 \ud55c \uc9c0\uc810\uc5d0\uc11c \uc790\uae30 \uc720\ub3c4\ub97c \uc77c\uc73c\ud0a8\ub2e4\uace0 \ub9d0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ud3d0\uc1c4 \ub8e8\ud504\uac00 \uc874\uc7ac\ud558\uc9c0 \uc54a\uc73c\uba74 \uc2e0\ud638\uac00 \uc18c\uc2a4\uc5d0\uc11c \uc804\uc1a1 \ub77c\uc778\uc758 \ubd80\ud558\ub85c \uc774\ub3d9\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc2a4\uc704\uce58\uac00 \ub2eb\ud788\uba74 \ud68c\ub85c\uac00 \ud615\uc131\ub418\uace0 AC \ub610\ub294 DC \uc804\ub958\uac00 \ud750\ub985\ub2c8\ub2e4. \uc8fc\ud30c\uc218 \uc601\uc5ed\uc5d0\uc11c \uc774 \uc804\ub958\ub294 RF \uc5d0\ub108\uc9c0\uc785\ub2c8\ub2e4. \uc2dc\uac04 \ub610\ub294 \uc8fc\ud30c\uc218 \uc601\uc5ed\uc5d0\ub294 \ubcc4\ub3c4\uc758 \uc804\ub958 \uc885\ub958\uac00 \uc874\uc7ac\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ud558\ub098\uc758 \uc804\ub958\uac00 \uc874\uc7ac\ud558\uba70 \ub450 \uc601\uc5ed \ubaa8\ub450\uc5d0\uc11c \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. RF \ub9ac\ud134 \uacbd\ub85c\ub294 \ubd80\ud558\uc5d0\uc11c \uc18c\uc2a4\uae4c\uc9c0 \uc874\uc7ac\ud574\uc57c \ud558\uba70, \uadf8\ub807\uc9c0 \uc54a\uc73c\uba74 \ud68c\ub85c\uac00 \uc791\ub3d9\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c PCB \uad6c\uc870\ub294 \ub9e5\uc2a4\uc6f0, \ud0a4\ub974\ud788\ud638\ud504, \uc554\ud398\uc5b4\ub97c \ub530\ub77c\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc774 \ubaa8\ub4e0 \ubc95\uce59\uc5d0 \ub530\ub974\uba74 \ud68c\ub85c\uac00 \uc608\uc0c1\ub300\ub85c \uc791\ub3d9\ud558\ub824\uba74 \ud3d0\uc1c4 \ub8e8\ud504 \ub124\ud2b8\uc6cc\ud06c\uac00 \uc874\uc7ac\ud574\uc57c \ud569\ub2c8\ub2e4. \uadf8\ub9bc\uc740 \uc774\ub7ec\ud55c \uc77c\ubc18\uc801\uc778 \ud68c\ub85c\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \ud2b8\ub808\uc774\uc2a4\uac00 \uc18c\uc2a4\uc5d0\uc11c \ubd80\ud558\ub85c \uc774\ub3d9\ud560 \ub54c\ub294 \ubc18\ub4dc\uc2dc \ubc18\ud658 \uc804\ub958 \uacbd\ub85c\uac00 \uc874\uc7ac\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\uac83\uc774 \ubc14\ub85c \ud0a4\ub974\ud788\ud638\ud504\uc640 \uc554\ud398\uc5b4\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"449\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Closed-Loop-Circuit.webp\" alt=\"Closed-Loop Circuit\" class=\"wp-image-4655\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Closed-Loop-Circuit.webp 800w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Closed-Loop-Circuit-300x168.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Closed-Loop-Circuit-768x431.webp 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Closed-Loop-Circuit-18x10.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>\ub450 \ubc88\uc9f8 \uadf8\ub9bc\uc740 \uc2a4\uc704\uce58\uc640 \ub4dc\ub77c\uc774\ubc84 E\uac00 \uc9c1\ub82c\ub85c \uc5f0\uacb0\ub41c \uac83\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uc2a4\uc704\uce58\uac00 \ub2eb\ud600 \uc788\uc73c\uba74 \ud68c\ub85c\uac00 \uc791\ub3d9\ud569\ub2c8\ub2e4. \uc5f4\ub824 \uc788\uc73c\uba74 \uc791\ub3d9\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc2dc\uac04 \uc601\uc5ed\uc5d0\uc11c \uc6d0\ud558\ub294 \uc2e0\ud638\ub294 \uc18c\uc2a4\uc5d0\uc11c \ubd80\ud558\ub85c \uc774\ub3d9\ud569\ub2c8\ub2e4. \uc2e0\ud638\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 0V \uc811\uc9c0 \ub808\ud37c\ub7f0\uc2a4\ub97c \ud1b5\uacfc\ud558\ub294 \ub9ac\ud134 \uacbd\ub85c\uac00 \uc788\uc5b4\uc57c \ud569\ub2c8\ub2e4. RF \uc804\ub958\ub294 \uc18c\uc2a4\uc5d0\uc11c \ubd80\ud558\ub85c \ud750\ub974\uace0 \uc784\ud53c\ub358\uc2a4\uac00 \uac00\uc7a5 \ub0ae\uc740 \uacbd\ub85c\ub97c \ud1b5\ud574 \ub418\ub3cc\uc544\uc635\ub2c8\ub2e4. \uc885\uc885 \uc774 \uacbd\ub85c\ub294 \uc811\uc9c0 \ud2b8\ub808\uc774\uc2a4 \ub610\ub294 \ud3c9\uba74, \uc989 \ubbf8\ub7ec \ud50c\ub808\uc778\uc744 \ud1b5\uacfc\ud569\ub2c8\ub2e4. \uc554\ud398\uc5b4\uc758 \ubc95\uce59\uc744 \uc0ac\uc6a9\ud558\uc5ec RF \uc804\ub958\ub97c \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Description-of-a-Closed-Loop-Circuit.webp\" alt=\"Description of a Closed-Loop Circuit\" class=\"wp-image-4656\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Description-of-a-Closed-Loop-Circuit.webp 800w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Description-of-a-Closed-Loop-Circuit-300x200.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Description-of-a-Closed-Loop-Circuit-768x512.webp 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Description-of-a-Closed-Loop-Circuit-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">3. \uc790\uc18d \ucd5c\uc18c\ud654(\uc790\uc18d \ucd5c\uc18c\ud654)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">3.1 \uc790\uc18d \ubc1c\uc0dd \uba54\ucee4\ub2c8\uc998<\/h3>\n\n\n\n<p>\u201cPCB\uc5d0\uc11c EMI\uac00 \uc5b4\ub5bb\uac8c \ub098\ud0c0\ub098\ub294\uc9c0\u201d\ub97c \uc5f0\uad6c\ud558\uae30 \uc804\uc5d0 \uc804\uc1a1 \ub77c\uc778\uc5d0\uc11c \uc790\uae30\uc120\uc774 \uc5b4\ub5bb\uac8c \ud615\uc131\ub418\ub294\uc9c0 \uc54c\uc544\uc57c \ud569\ub2c8\ub2e4. \uc790\uc18d\uc774 \ud575\uc2ec \uac1c\ub150\uc785\ub2c8\ub2e4. \uc790\uc18d\uc740 \uc804\ub958\uac00 \uace0\uc815 \ub610\ub294 \uac00\ubcc0 \uc784\ud53c\ub358\uc2a4\ub97c \ud1b5\ud574 \ud750\ub97c \ub54c \ud615\uc131\ub429\ub2c8\ub2e4. \uc784\ud53c\ub358\uc2a4\ub294 \ud2b8\ub808\uc774\uc2a4, \ubd80\ud488 \ub9ac\ub4dc, \ube44\uc544 \ub4f1\uc5d0 \uc874\uc7ac\ud569\ub2c8\ub2e4. PCB\uc5d0 \ud50c\ub7ed\uc2a4\uac00 \uc874\uc7ac\ud558\uba74 RF \uc5d0\ub108\uc9c0 \uacbd\ub85c\ub3c4 \uc874\uc7ac\ud55c\ub2e4\uace0 \ub9e5\uc2a4\uc6f0\uc740 \ub9d0\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uacbd\ub85c\ub294 \uc790\uc720 \uacf5\uac04\uc73c\ub85c \ubc29\uc0ac\ub418\uac70\ub098 \ucf00\uc774\ube14\uc744 \ud1b5\ud574 \uc804\ub3c4\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.2 \ud50c\ub7ed\uc2a4 \ucde8\uc18c\uc758 \uc6d0\ub9ac<\/h3>\n\n\n\n<p>PCB\uc5d0\uc11c RF \uc804\ub958\ub97c \uc81c\uac70\ud558\uae30 \uc704\ud574 \u201c\ud50c\ub7ed\uc2a4 \uc81c\uac70\u201d \ub610\ub294 \u201c\ud50c\ub7ed\uc2a4 \ucd5c\uc18c\ud654\u201d\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc790\uae30\uc120\uc740 \ud2b8\ub808\uc774\uc2a4 \uc8fc\uc704\ub97c \ud55c \ubc29\ud5a5\uc73c\ub85c \ud750\ub985\ub2c8\ub2e4. RF \ub9ac\ud134 \uacbd\ub85c\ub97c \uc18c\uc2a4 \ud2b8\ub808\uc774\uc2a4\uc640 \ud3c9\ud589\ud558\uace0 \uac00\uae5d\uac8c \ub9cc\ub4e4\uba74 \ub9ac\ud134 \uacbd\ub85c\uc758 \ud544\ub4dc\uac00 \uc18c\uc2a4 \ud544\ub4dc\uc640 \ubc18\ub300 \ubc29\ud5a5\uc73c\ub85c \ud750\ub985\ub2c8\ub2e4. \ud544\ub4dc\uac00 \ubc18\ub300 \ubc29\ud5a5\uc73c\ub85c \ud750\ub974\uba74 \uc0c1\uc1c4\ub429\ub2c8\ub2e4. \uc18c\uc2a4\uc640 \ub9ac\ud134 \uc0ac\uc774\uc758 \uc6d0\uce58 \uc54a\ub294 \ud50c\ub7ed\uc2a4\uac00 \uc0c1\uc1c4\ub418\uac70\ub098 \uc791\uac8c \uc720\uc9c0\ub418\uba74 \ub9e4\uc6b0 \uc791\uc740 \ud2b8\ub808\uc774\uc2a4 \uc5d0\uc9c0\ub97c \uc81c\uc678\ud558\uace0\ub294 \ubc29\uc0ac \ub610\ub294 \uc804\ub3c4\ub41c RF \uc804\ub958\uac00 \uc874\uc7ac\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ud50c\ub7ed\uc2a4 \uc0c1\uc1c4\uc758 \uac1c\ub150\uc740 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uc124\uacc4 \uc2dc \ud568\uc815\uacfc \uc791\uc740 \uc2e4\uc218\ub97c \uc8fc\uc758\ud574\uc57c \ud569\ub2c8\ub2e4. \uc791\uc740 \uc624\ub958\ub294 \ub514\ubc84\uae45\uc744 \uc5b4\ub835\uac8c \ub9cc\ub4dc\ub294 \ub9ce\uc740 \ucd94\uac00 \ubb38\uc81c\ub97c \uc77c\uc73c\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uac00\uc7a5 \uc26c\uc6b4 \ud50c\ub7ed\uc2a4 \uc81c\uac70 \ubc29\ubc95\uc740 \uc774\ubbf8\uc9c0 \ud3c9\uba74(\ubbf8\ub7ec \ud3c9\uba74)\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc544\ubb34\ub9ac \uc798 \ub77c\uc6b0\ud305\ud574\ub3c4 \uc804\uae30\uc7a5\uacfc \uc790\uae30\uc7a5\uc740 \ud56d\uc0c1 \uc874\uc7ac\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uc790\uae30\uc120\uc744 \uc81c\uac70\ud558\uba74 EMI\uac00 \uc0ac\ub77c\uc9d1\ub2c8\ub2e4. \uadf8\ub807\uac8c \uac04\ub2e8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.3 PCB \ub808\uc774\uc544\uc6c3\uc5d0\uc11c \ud50c\ub7ed\uc2a4 \ucd5c\uc18c\ud654 \ud301<\/h3>\n\n\n\n<p>PCB \ub808\uc774\uc544\uc6c3\uc5d0\uc11c \ud50c\ub7ed\uc2a4\ub97c \ucde8\uc18c\ud558\ub294 \ubc29\ubc95\uc740 \ubb34\uc5c7\uc778\uac00\uc694? \ub9ce\uc740 \ud301\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ubaa8\ub450 \uc9c1\uc811\uc801\uc73c\ub85c \ud50c\ub7ed\uc2a4\ub97c \ucde8\uc18c\ud558\ub294 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \uba87 \uac00\uc9c0 \uc77c\ubc18\uc801\uc778 \ud301\uc744 \uc18c\uac1c\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc62c\ubc14\ub978 \uc2a4\ud0dd\uc5c5 \ud560\ub2f9 \ubc0f \uc784\ud53c\ub358\uc2a4 \uc81c\uc5b4 \uae30\ub2a5\uc744 \uac16\ucd98 \uba40\ud2f0 \ub808\uc774\uc5b4 \ubcf4\ub4dc\ub97c \uc0ac\uc6a9\ud558\uc138\uc694.<\/li>\n\n\n\n<li>\ud074\ub85d \ud2b8\ub808\uc774\uc2a4\ub97c \ub9ac\ud134 \uc811\uc9c0\uba74 \uadfc\ucc98\uc5d0 \ubc30\uce58\ud569\ub2c8\ub2e4(\ub2e4\uce35 PCB\uc758 \uacbd\uc6b0). \ub2e8\uba74 \ub610\ub294 \uc591\uba74 \ubcf4\ub4dc\uc758 \uacbd\uc6b0 \ud074\ub85d \ud2b8\ub808\uc774\uc2a4 \uadfc\ucc98\uc5d0 \uc811\uc9c0 \ud2b8\ub808\uc774\uc2a4 \ub610\ub294 \uac00\ub4dc \ud2b8\ub808\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ud50c\ub77c\uc2a4\ud2f1 \ud328\ud0a4\uc9c0 \ub0b4\ubd80\uc758 \uc790\uc18d\uc744 0V \ub808\ud37c\ub7f0\uc2a4\ub85c \ucea1\ucc98\ud558\uc5ec \ubd80\ud488 \ubc29\uc0ac\uc120\uc744 \ub0ae\ucda5\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ub85c\uc9c1 \ubd80\ud488\uc744 \uc2e0\uc911\ud558\uac8c \uc120\ud0dd\ud558\uc5ec \ubd80\ud488\uc774 \ubc29\ucd9c\ud558\ub294 RF \uc2a4\ud399\ud2b8\ub7fc\uc744 \uc904\uc774\uc138\uc694. \uac00\ub2a5\ud558\uba74 \uc5d0\uc9c0 \uc18d\ub3c4\uac00 \ub290\ub9b0 \ub514\ubc14\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ud074\ub85d \ub4dc\ub77c\uc774\ubc84(TTL\/CMOS)\uc758 RF \ub4dc\ub77c\uc774\ube0c \uc804\uc555\uc744 \uc904\uc5ec \ud2b8\ub808\uc774\uc2a4\uc758 RF \uc804\ub958\ub97c \ub0ae\ucda5\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uc804\uc6d0\uacfc \uc811\uc9c0\uba74 \uc0ac\uc774\uc5d0 \uc874\uc7ac\ud558\ub294 \uc811\uc9c0 \ub178\uc774\uc988 \uc804\uc555\uc744 \ub0ae\ucda5\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ub9ce\uc740 \ub514\ubc14\uc774\uc2a4 \ud540\uc774 \ud55c \ubc88\uc5d0 \uc804\ud658\ub418\uc5b4 \ud070 \uc815\uc804 \uc6a9\ub7c9 \ubd80\ud558\ub97c \uad6c\ub3d9\ud558\ub294 \uacbd\uc6b0 \ubd80\ud488\uc5d0 \ucda9\ubd84\ud55c \ub514\ucee4\ud50c\ub9c1\uc744 \uc81c\uacf5\ud558\uc138\uc694.<\/li>\n\n\n\n<li>\ub9c1\uc789, \uc624\ubc84\uc288\ud2b8, \uc5b8\ub354\uc288\ud2b8\ub97c \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \ud074\ub85d \ubc0f \uc2e0\ud638 \ucd94\uc801\uc744 \uc801\uc808\ud788 \uc885\ub8cc\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ub370\uc774\ud130 \ud68c\uc120 \ud544\ud130\uc640 \uacf5\ud1b5 \ubaa8\ub4dc \ucd08\ud06c\uac00 \ud544\uc694\ud55c \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c\ub294 \uc774\ub97c \uc0ac\uc6a9\ud558\uc138\uc694.<\/li>\n\n\n\n<li>\uc678\ubd80 I\/O \ucf00\uc774\ube14\uc758 \uacbd\uc6b0 \ubc14\uc774\ud328\uc2a4 \ucee4\ud328\uc2dc\ud130\ub97c \uc62c\ubc14\ub974\uac8c \uc0ac\uc6a9\ud558\uc138\uc694(\ub514\ucee4\ud50c\ub9c1\uc774 \uc544\ub2cc).<\/li>\n\n\n\n<li>\uacf5\ud1b5 \ubaa8\ub4dc RF \uc5d0\ub108\uc9c0\ub97c \ub9ce\uc774 \ubc29\ucd9c\ud558\ub294 \uad6c\uc131 \uc694\uc18c\uc758 \uacbd\uc6b0 \uc811\uc9c0\ub41c \ubc29\uc5f4\ud310\uc744 \uc81c\uacf5\ud558\uc138\uc694.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3.4 PCB\uc5d0\uc11c EMI\uc758 \uae30\ud0c0 \uc6d0\uc778<\/h3>\n\n\n\n<p>\ubaa9\ub85d\uc744 \ubcf4\uba74 \uc790\uc18d\uc740 PCB\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 EMI\uc758 \ud55c \ubd80\ubd84\uc77c \ubfd0\uc774\ub77c\ub294 \uac83\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\ub978 \uc6d0\uc778\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud68c\ub85c\uc640 I\/O \ucf00\uc774\ube14 \uc0ac\uc774\uc758 \uacf5\ud1b5 \ubaa8\ub4dc \ubc0f \ucc28\ub3d9 \ubaa8\ub4dc \uc804\ub958.<\/li>\n\n\n\n<li>\uc790\uae30\uc7a5 \uad6c\uc870\ub97c \uc0dd\uc131\ud558\ub294 \uc811\uc9c0 \ub8e8\ud504.<\/li>\n\n\n\n<li>\ubc29\uc0ac\ud615 \uad6c\uc131 \uc694\uc18c.<\/li>\n\n\n\n<li>\uc784\ud53c\ub358\uc2a4 \ubd88\uc77c\uce58.<\/li>\n<\/ul>\n\n\n\n<p>\ucc38\uace0: \ub300\ubd80\ubd84\uc758 EMI \ubc29\uc0ac\uc120\uc740 \uacf5\ud1b5 \ubaa8\ub4dc \uc804\uc555\uc5d0\uc11c \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ubcf4\ub4dc \ub610\ub294 \ud68c\ub85c\uc5d0\uc11c \uc774\ub7ec\ud55c \uacf5\ud1b5 \ubaa8\ub4dc \ub808\ubca8\uc740 \uc791\uc740 \ud544\ub4dc\ub85c \ubc14\ub014 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uacb0\ub860<\/h2>\n\n\n\n<p>PCB\uc5d0\uc11c EMI\ub97c \uc81c\uac70\ud558\ub824\uba74 \uc790\uc18d\uc744 \uc904\uc774\ub294 \uac83\ubd80\ud130 \uc2dc\uc791\ud558\uc138\uc694. \ub9d0\ub85c\ub294 \uc27d\uc9c0\ub9cc \uc2e4\ucc9c\ud558\uae30\ub294 \ub354 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. RF \uc5d0\ub108\uc9c0\ub294 \ub208\uc5d0 \ubcf4\uc774\uc9c0 \uc54a\uace0 \ucc3e\uae30\ub3c4 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. RF \uc804\ub958\uac00 \ud750\ub974\ub294 \uc704\uce58\uc640 \ubc29\ud5a5\uc744 \ud30c\uc545\ud558\uace0 \uc704\uc758 \ud301\uacfc \ub9e5\uc2a4\uc6f0, \ud0a4\ub974\ud788\ud638\ud504, \uc554\ud398\uc5b4\uc758 \uaddc\uce59\uc744 \uc0ac\uc6a9\ud558\uba74 \uc758\uc2ec\ub418\ub294 \uc601\uc5ed\uc744 \uc881\ud790 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \uc2e4\uc81c EMI \uc18c\uc2a4\ub97c \ucc3e\uc544 \uc81c\uac70\ud558\uc138\uc694.<\/p>","protected":false},"excerpt":{"rendered":"<p>In PCBs, many things can cause EMI. For example: radio frequency currents, common-mode voltages, ground loops, impedance mismatch, and magnetic 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