{"id":51387,"date":"2023-05-22T05:53:30","date_gmt":"2023-05-22T05:53:30","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ec%a0%84%ec%9e%90%ea%b8%b0%ed%8c%8c-%ec%8a%a4%ed%8e%99%ed%8a%b8%eb%9f%bc-%eb%b6%84%ec%84%9d%ea%b8%b0%eb%8a%94-%ec%96%b4%eb%96%bb%ea%b2%8c-%ec%9e%91%eb%8f%99%ed%95%a9%eb%8b%88%ea%b9%8c\/"},"modified":"2023-11-02T05:58:30","modified_gmt":"2023-11-02T05:58:30","slug":"%ec%a0%84%ec%9e%90%ea%b8%b0%ed%8c%8c-%ec%8a%a4%ed%8e%99%ed%8a%b8%eb%9f%bc-%eb%b6%84%ec%84%9d%ea%b8%b0%eb%8a%94-%ec%96%b4%eb%96%bb%ea%b2%8c-%ec%9e%91%eb%8f%99%ed%95%a9%eb%8b%88%ea%b9%8c","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ec%a0%84%ec%9e%90%ea%b8%b0%ed%8c%8c-%ec%8a%a4%ed%8e%99%ed%8a%b8%eb%9f%bc-%eb%b6%84%ec%84%9d%ea%b8%b0%eb%8a%94-%ec%96%b4%eb%96%bb%ea%b2%8c-%ec%9e%91%eb%8f%99%ed%95%a9%eb%8b%88%ea%b9%8c\/","title":{"rendered":"\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\ub294 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud569\ub2c8\uae4c?"},"content":{"rendered":"<p class=\"sidekick\">\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c\ub97c \ud0d0\uad6c\ud558\uba70, \ub2e4\uc591\ud55c \uc751\uc6a9 \ubd84\uc57c\uc640 \ud65c\uc6a9 \uc0ac\ub840\uc5d0 \ub300\ud574 \uae4a\uac8c \uc54c\uc544\ubcf4\ub294 \uae00\uc785\ub2c8\ub2e4.<\/p>\n<h2>\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\uc758 \uae30\ubcf8 \uc6d0\ub9ac<\/h2>\n<p>\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\ub294 \ub2e4\uc591\ud55c \uc8fc\ud30c\uc218\uc758 \uc804\uc790\uae30\ud30c\ub97c \uac10\uc9c0, \uce21\uc815, \ubd84\uc11d\ud558\ub294 \uc7a5\uce58\uc785\ub2c8\ub2e4. \uc774 \uae30\uae30\ub294 \ud1b5\uc2e0, \ubc29\uc1a1, \uad6d\ubc29, \uc5f0\uad6c \ub4f1 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \uc0ac\uc6a9\ub418\uba70, \uc804\uc790\uae30\ud30c\uc758 \uc8fc\ud30c\uc218, \uac15\ub3c4, \ubcc0\uc870 \ub4f1\uc744 \ubd84\uc11d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\uc791\ub3d9 \uc6d0\ub9ac<\/h2>\n<p>\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\uc758 \ud575\uc2ec \uc791\ub3d9 \uc6d0\ub9ac\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\uc785\ub825:<\/strong> \uce21\uc815\ud558\ub824\ub294 \uc804\uc790\uae30\ud30c \uc2e0\ud638\ub294 \ubd84\uc11d\uae30\uc758 \uc548\ud14c\ub098\ub098 \ud504\ub85c\ube0c\ub97c \ud1b5\ud574 \uc785\ub825\ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\uc8fc\ud30c\uc218 \ubcc0\ud658:<\/strong> \uc785\ub825\ub41c \uc2e0\ud638\ub294 \ub85c\uceec \ubc1c\uc9c4\uae30(Local Oscillator)\uc640 \ud63c\ud569\ub418\uc5b4 \uc911\uac04 \uc8fc\ud30c\uc218(Intermediate Frequency, IF)\ub85c \ubcc0\ud658\ub429\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc5d0\uc11c \uc6d0\ud558\ub294 \uc8fc\ud30c\uc218 \ubc94\uc704\uc758 \uc2e0\ud638\ub9cc \uc120\ud0dd\ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\ud544\ud130\ub9c1:<\/strong> \ubcc0\ud658\ub41c \uc2e0\ud638\ub294 \ubc34\ub4dc \ud328\uc2a4 \ud544\ud130\ub97c \ud1b5\uacfc\ud558\uc5ec \uc6d0\ud558\ub294 \uc8fc\ud30c\uc218 \ub300\uc5ed\uc758 \uc2e0\ud638\ub9cc \ucd94\ucd9c\ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\uac80\ucd9c:<\/strong> \ud544\ud130\ub9c1\ub41c \uc2e0\ud638\ub294 \uac80\ucd9c\uae30\ub97c \ud1b5\ud574 \uc9c4\ud3ed\uc774\ub098 \uac15\ub3c4\ub97c \uce21\uc815\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc774\ub7ec\ud55c \uacfc\uc815\uc744 \uac70\uccd0 \uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\ub294 \uc8fc\ud30c\uc218 \ub300\uc5ed\ubcc4\ub85c \uc2e0\ud638\uc758 \uac15\ub3c4\ub97c \uadf8\ub798\ud504 \ud615\ud0dc\ub85c \ud45c\uc2dc\ud569\ub2c8\ub2e4. \uc774 \uadf8\ub798\ud504\ub97c \uc2a4\ud399\ud2b8\ub7fc\uc774\ub77c\uace0 \ubd80\ub974\uba70, \uc2a4\ud399\ud2b8\ub7fc \uc704\uc5d0 \ub098\ud0c0\ub098\ub294 \uac01\uac01\uc758 \ud53c\ud06c\ub294 \ud2b9\uc815 \uc8fc\ud30c\uc218\uc5d0\uc11c\uc758 \uc2e0\ud638 \uac15\ub3c4\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n<h2>\uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\uc758 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c<\/h2>\n<p>\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\uc758 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<ol>\n<li><strong>\uc548\ud14c\ub098\ub098 \ud504\ub85c\ube0c:<\/strong> \uc678\ubd80\uc758 \uc804\uc790\uae30\ud30c \uc2e0\ud638\ub97c \ucea1\uccd0\ud558\ub294 \ubd80\ud488\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\ub85c\uceec \ubc1c\uc9c4\uae30:<\/strong> \uc8fc\ud30c\uc218 \ubcc0\ud658\uc744 \uc704\ud55c \uc2e0\ud638\ub97c \uc0dd\uc131\ud558\ub294 \ubd80\ud488\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\ubc34\ub4dc \ud328\uc2a4 \ud544\ud130:<\/strong> \uc6d0\ud558\ub294 \uc8fc\ud30c\uc218 \ub300\uc5ed\uc758 \uc2e0\ud638\ub9cc\uc744 \uc120\ud0dd\ud558\ub294 \ud544\ud130\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\uac80\ucd9c\uae30:<\/strong> \uc2e0\ud638\uc758 \uac15\ub3c4\ub098 \uc9c4\ud3ed\uc744 \uce21\uc815\ud558\ub294 \ubd80\ud488\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\ub514\uc2a4\ud50c\ub808\uc774:<\/strong> \uce21\uc815\ub41c \uc2a4\ud399\ud2b8\ub7fc\uc744 \uadf8\ub798\ud504 \ud615\ud0dc\ub85c \ud45c\uc2dc\ud558\ub294 \ud654\uba74\uc785\ub2c8\ub2e4.<\/li>\n<\/ol>\n<p>\uc774\ub807\uac8c \uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\ub294 \ub2e4\uc591\ud55c \ubd80\ud488\uacfc \uc6d0\ub9ac\ub97c \uae30\ubc18\uc73c\ub85c \uc804\uc790\uae30\ud30c\uc758 \ud2b9\uc131\uc744 \uc815\ubc00\ud558\uac8c \ubd84\uc11d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \ubd80\ubd84\uc5d0\uc11c\ub294 \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\uc758 \uc751\uc6a9 \ubd84\uc57c\uc640 \uc2e4\uc81c \ud65c\uc6a9 \uc0ac\ub840\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\uc758 \uc751\uc6a9 \ubd84\uc57c<\/h2>\n<p>\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\ub294 \uadf8 \uae30\ub2a5\uacfc \uc131\ub2a5\uc5d0 \ub530\ub77c \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \ud65c\uc6a9\ub429\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\ud1b5\uc2e0:<\/strong> \uc774\ub3d9\ud1b5\uc2e0, \uc704\uc131 \ud1b5\uc2e0, \ubb34\uc120 \ud1b5\uc2e0 \ub4f1\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 \uc8fc\ud30c\uc218\uc640 \ub300\uc5ed\ud3ed\uc758 \uc801\uc815\uc131\uc744 \ud310\ub2e8\ud558\uac70\ub098, \uc7a5\uc560\uc6d0\uc778 \ubd84\uc11d\uc5d0 \ud65c\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\ubc29\uc1a1:<\/strong> TV, \ub77c\ub514\uc624 \ubc29\uc1a1\uc5d0\uc11c\uc758 \uc2e0\ud638 \uac15\ub3c4, \uc9c8\ub7c9 \ubd84\uc11d, \uadf8\ub9ac\uace0 \ucc44\ub110 \uac04 \uac04\uc12d \uc870\uc0ac\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\uc5f0\uad6c \ubc0f \uac1c\ubc1c:<\/strong> \uc0c8\ub85c\uc6b4 \uae30\uc220\uc774\ub098 \uc81c\ud488\uc758 \uc5f0\uad6c \uac1c\ubc1c \uacfc\uc815\uc5d0\uc11c \uc804\uc790\uae30\ud30c\uc758 \ud2b9\uc131\uc744 \ubd84\uc11d\ud558\uac70\ub098, \ucd5c\uc801\ud654 \uc791\uc5c5\uc5d0 \ud544\uc694\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uad6d\ubc29:<\/strong> \uc804\uc790\uc804, \uac04\uc12d, \uac10\uc2dc \ub4f1\uc758 \uad6d\ubc29 \uc751\uc6a9\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>\uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\n<p>\uc2e4\uc81c\ub85c, \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\ub294 \uad50\ud1b5\uc2e0\ud638 \uc7a5\uc560 \uc9c4\ub2e8, \ubb34\uc120 \ub124\ud2b8\uc6cc\ud06c \ucd5c\uc801\ud654, \uadf8\ub9ac\uace0 RF(Radio Frequency) \uc7a5\ube44\uc758 \uc131\ub2a5 \ud3c9\uac00 \ub4f1\uc5d0 \ud65c\uc6a9\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uba74, \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\ub97c \uc774\uc6a9\ud558\uc5ec \ub3c4\uc2dc \uc9c0\uc5ed\uc758 \uc774\ub3d9\ud1b5\uc2e0 \uc2e0\ud638 \uac15\ub3c4\uc640 \uac04\uc12d \ud604\ud669\uc744 \uce21\uc815\ud558\uace0, \uc774\ub97c \ubc14\ud0d5\uc73c\ub85c \uc548\uc815\uc801\uc778 \ud1b5\uc2e0 \ud658\uacbd\uc744 \uc81c\uacf5\ud558\ub294 \ub370 \uae30\uc5ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\uacb0\ub860<\/h2>\n<p>\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\ub294 \ud604\ub300 \uc0ac\ud68c\uc5d0\uc11c \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \ube7c\ub193\uc744 \uc218 \uc5c6\ub294 \uc911\uc694\ud55c \ub3c4\uad6c\ub85c \uc790\ub9ac \uc7a1\uc558\uc2b5\ub2c8\ub2e4. \uadf8 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \uad6c\uc131 \uc694\uc18c\ub97c \uc774\ud574\ud558\ub294 \uac83\uc740 \uc774 \uae30\uae30\uc758 \ub2e4\uc591\ud55c \uc751\uc6a9 \ubd84\uc57c\uc640 \ud65c\uc6a9 \uc0ac\ub840\ub97c \ud1b5\ud574 \uc804\uc790\uae30\ud30c\uc640 \uad00\ub828\ub41c \ubb38\uc81c\ub97c \ud6a8\uacfc\uc801\uc73c\ub85c \ud574\uacb0\ud558\ub294 \ub370 \uc911\uc694\ud55c \uc5f4\uc1e0\uac00 \ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uae30\uc220\uc758 \ubc1c\uc804\uacfc \ud65c\uc6a9\uc740 \uc55e\uc73c\ub85c\ub3c4 \uacc4\uc18d\ub420 \uac83\uc774\uba70, \uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uc758 \uc911\uc694\uc131\uc740 \ub354\uc6b1 \ucee4\uc9c8 \uac83\uc73c\ub85c \uc608\uc0c1\ub429\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c\ub97c \ud0d0\uad6c\ud558\uba70, \ub2e4\uc591\ud55c \uc751\uc6a9 \ubd84\uc57c\uc640 \ud65c\uc6a9 \uc0ac\ub840\uc5d0 \ub300\ud574 \uae4a\uac8c \uc54c\uc544\ubcf4\ub294 \uae00\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[61],"tags":[62],"class_list":["post-51387","post","type-post","status-publish","format-standard","hentry","category-61","tag-62","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\ub294 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud569\ub2c8\uae4c?<\/title>\n<meta name=\"description\" content=\"\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c\ub97c \ud0d0\uad6c\ud558\uba70, \ub2e4\uc591\ud55c \uc751\uc6a9 \ubd84\uc57c\uc640 \ud65c\uc6a9 \uc0ac\ub840\uc5d0 \ub300\ud574 \uae4a\uac8c \uc54c\uc544\ubcf4\ub294 \uae00\uc785\ub2c8\ub2e4.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.electricity-magnetism.org\/ko\/%ec%a0%84%ec%9e%90%ea%b8%b0%ed%8c%8c-%ec%8a%a4%ed%8e%99%ed%8a%b8%eb%9f%bc-%eb%b6%84%ec%84%9d%ea%b8%b0%eb%8a%94-%ec%96%b4%eb%96%bb%ea%b2%8c-%ec%9e%91%eb%8f%99%ed%95%a9%eb%8b%88%ea%b9%8c\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\ub294 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud569\ub2c8\uae4c?\" \/>\n<meta property=\"og:description\" content=\"\uc804\uc790\uae30\ud30c \uc2a4\ud399\ud2b8\ub7fc \ubd84\uc11d\uae30\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c\ub97c \ud0d0\uad6c\ud558\uba70, \ub2e4\uc591\ud55c \uc751\uc6a9 \ubd84\uc57c\uc640 \ud65c\uc6a9 \uc0ac\ub840\uc5d0 \ub300\ud574 \uae4a\uac8c \uc54c\uc544\ubcf4\ub294 \uae00\uc785\ub2c8\ub2e4.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.electricity-magnetism.org\/ko\/%ec%a0%84%ec%9e%90%ea%b8%b0%ed%8c%8c-%ec%8a%a4%ed%8e%99%ed%8a%b8%eb%9f%bc-%eb%b6%84%ec%84%9d%ea%b8%b0%eb%8a%94-%ec%96%b4%eb%96%bb%ea%b2%8c-%ec%9e%91%eb%8f%99%ed%95%a9%eb%8b%88%ea%b9%8c\/\" \/>\n<meta property=\"og:site_name\" content=\"Electricity - Magnetism\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-22T05:53:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-02T05:58:30+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Matan\" \/>\n<script type=\"application\/ld+json\" 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