{"id":146668,"date":"2024-04-27T12:26:02","date_gmt":"2024-04-27T12:26:02","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ec%86%a1%ec%8b%a0%ea%b8%b0\/"},"modified":"2024-04-27T12:26:10","modified_gmt":"2024-04-27T12:26:10","slug":"%ec%86%a1%ec%8b%a0%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ec%86%a1%ec%8b%a0%ea%b8%b0\/","title":{"rendered":"\uc1a1\uc2e0\uae30"},"content":{"rendered":"<p class=\"sidekick\">\uc1a1\uc2e0\uae30\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \uad6c\uc131 \uc694\uc18c\ub97c \uc124\uba85\ud558\uba70, \uc804\uc790\uae30\ud30c\uc758 \ubc1c\uc0dd\ubd80\ud130 \ubcc0\uc870, \uc548\ud14c\ub098\ub97c \ud1b5\ud55c \ubc29\ucd9c\uae4c\uc9c0 \ubb34\uc120\ud1b5\uc2e0\uc758 \uc911\uc2ec\uc801 \uc5ed\ud560\uc744 \ub2e4\ub8f9\ub2c8\ub2e4.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2024\/04\/\uc1a1\uc2e0\uae30.png\" alt=\"\uc1a1\uc2e0\uae30\"\/><\/p>\n<h2>\uc1a1\uc2e0\uae30\uc758 \uae30\ubcf8 \uc6d0\ub9ac\uc640 \uc751\uc6a9<\/h2>\n<p>\uc1a1\uc2e0\uae30(transmitter)\ub780 \uc815\ubcf4\ub97c \uc804\uc790\uae30\ud30c \ud615\ud0dc\ub85c \ubcc0\ud658\ud558\uc5ec \uc6d0\uac70\ub9ac\uc758 \uc218\uc2e0\uae30(receiver)\uae4c\uc9c0 \uc804\ub2ec\ud558\ub294 \uc7a5\uce58\uc785\ub2c8\ub2e4. \uc804\uc790\uae30\ud30c\ub294 \uc804\uae30\uc640 \uc790\uae30\uc758 \ud544\ub4dc\uac00 \uc11c\ub85c \uc0c1\ud638\uc791\uc6a9\ud558\ub294 \ud30c\ub3d9\uc73c\ub85c, \ubb34\uc120\ud1b5\uc2e0\uc5d0 \ud575\uc2ec\uc801\uc778 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc1a1\uc2e0\uae30\ub294 \ub77c\ub514\uc624, \ud154\ub808\ube44\uc804 \ubc29\uc1a1, \ud734\ub300\ud3f0 \uc2e0\ud638 \ub4f1 \ub2e4\uc591\ud55c \ud615\ud0dc\uc758 \uc815\ubcf4 \uc804\uc1a1\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<h2>\uc1a1\uc2e0\uae30\uc758 \uad6c\uc131 \uc694\uc18c<\/h2>\n<p>\uc1a1\uc2e0\uae30\ub294 \ud06c\uac8c \uc815\ubcf4\ub97c \ucc98\ub9ac\ud558\ub294 \ubaa8\ub4c8\uacfc \uc804\uc790\uae30\ud30c\ub97c \uc0dd\uc131\ud558\ub294 RF(\ubb34\uc120 \uc8fc\ud30c\uc218) \uc99d\ud3ed\uae30 \ubd80\ubd84\uc73c\ub85c \ub098\ub20c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<ul>\n<li>\uc815\ubcf4 \ucc98\ub9ac \ubaa8\ub4c8: \uc18c\uc2a4\ub85c\ubd80\ud130 \ubc1b\uc740 \uc6d0\ubcf8 \uc815\ubcf4\ub97c \uc801\ud569\ud55c \ud615\ud0dc\ub85c \ubcc0\ud658\ud558\uace0, \uc801\uc808\ud55c \uc8fc\ud30c\uc218\ub85c \uc870\uc815\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 \uc74c\uc131 \uc2e0\ud638\ub294 \ub9c8\uc774\ud06c\ub85c \ubcc0\ud658\ub418\uace0, \ub370\uc774\ud130 \uc2e0\ud638\ub294 \ub514\uc9c0\ud138 \ud615\ud0dc\ub85c \uc778\ucf54\ub529 \ub429\ub2c8\ub2e4.<\/li>\n<li>RF \uc99d\ud3ed\uae30: \ubcc0\ud658\ub41c \uc2e0\ud638\ub97c \ubb34\uc120 \uc8fc\ud30c\uc218\ub85c \uc804\ud658\ud558\uace0 \uc99d\ud3ed\ud558\uc5ec \uc548\ud14c\ub098\ub97c \ud1b5\ud574 \uacf5\uac04\uc73c\ub85c \ubc29\ucd9c\ud569\ub2c8\ub2e4. \uc99d\ud3ed \uacfc\uc815\uc740 \uc2e0\ud638\ub97c \ub354 \uba40\ub9ac \uc804\uc1a1\ud558\uae30 \uc704\ud574 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>\uc804\uc790\uae30\ud30c\uc640 \uc1a1\uc2e0<\/h2>\n<p>\uc804\uc790\uae30\ud30c\ub294 \uc804\uae30\uc7a5(E)\uacfc \uc790\uae30\uc7a5(B)\uc774 \uc11c\ub85c \uc218\uc9c1\ud558\uba74\uc11c \uc804\ud30c\ub418\ub294 \ud30c\ub3d9\uc73c\ub85c, \uc18c\uc704 \ub9e5\uc2a4\uc6f0 \ubc29\uc815\uc2dd\uc73c\ub85c \uc124\uba85\ub429\ub2c8\ub2e4. \uc774 \uc804\uc790\uae30\ud30c\ub294 \uc18d\ub3c4(c), \uc8fc\ud30c\uc218(f), \ud30c\uc7a5(\u03bb)\uc758 \uad00\uacc4\uc5d0 \uc758\ud574 \ud45c\ud604\ub429\ub2c8\ub2e4. \uadf8 \uad00\uacc4\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc2dd\uc73c\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<p>\\[ c = f \\times \\lambda \\]<\/p>\n<p>\uc5ec\uae30\uc11c c\ub294 \ube5b\uc758 \uc18d\ub3c4\ub97c \ub098\ud0c0\ub0b4\uba70, \ubcf4\ud1b5 \uacf5\uae30 \uc911\uc5d0\uc11c\ub294 \uc57d 299,792,458 m\/s\ub85c \uac04\uc8fc\ub429\ub2c8\ub2e4.<\/p>\n<h2>\uc1a1\uc2e0\uae30\uc758 \uc804\uc790\uae30\ud30c \ubc1c\uc0dd<\/h2>\n<p>\uc1a1\uc2e0\uae30\uc5d0\uc11c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc9c4\ub3d9\uc790(oscillator)\ub97c \uc774\uc6a9\ud558\uc5ec \uc804\uc790\uae30\ud30c\ub97c \ubc1c\uc0dd\uc2dc\ud0b5\ub2c8\ub2e4. \uc9c4\ub3d9\uc790\ub294 \ud2b9\uc815 \uc8fc\ud30c\uc218\uc5d0\uc11c \uc548\uc815\uc801\uc73c\ub85c \uc9c4\ub3d9\ud560 \uc218 \uc788\ub294 \ud68c\ub85c\ub85c, LC \ud68c\ub85c\uac00 \ub300\ud45c\uc801\uc778 \uc608\uc785\ub2c8\ub2e4. LC \ud68c\ub85c\ub294 \uc778\ub355\ud130(L)\uc640 \ucee4\ud328\uc2dc\ud130(C)\ub85c \uad6c\uc131\ub418\uba70, \uc0ac\uc6a9\ud558\ub294 L\uacfc C\uc758 \uac12\uc744 \ubcc0\uacbd\ud568\uc73c\ub85c\uc368 \ub2e4\ub978 \uc8fc\ud30c\uc218\uc758 \uc804\uc790\uae30\ud30c\ub97c \uc0dd\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\ubcc0\uc870(Modulation)<\/h2>\n<p>\uc1a1\uc2e0\uae30\uc5d0\uc11c \uc815\ubcf4\ub97c \uc804\uc1a1\ud558\uae30 \uc704\ud574\uc11c\ub294 \ud574\ub2f9 \uc815\ubcf4\ub97c \uc804\uc790\uae30\ud30c\uc5d0 &#8216;\uc2e4\uc5b4&#8217; \ubcf4\ub0b4\uc57c \ud569\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc744 &#8216;\ubcc0\uc870&#8217;\ub77c\uace0 \ud569\ub2c8\ub2e4. \ubcc0\uc870\uc5d0\ub294 \ud06c\uac8c \ub450 \uac00\uc9c0 \uc720\ud615\uc774 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li>\uc9c4\ud3ed \ubcc0\uc870(AM, Amplitude Modulation): \uc804\uc790\uae30\ud30c\uc758 \uc9c4\ud3ed\uc744 \ubcc0\ud654\uc2dc\ucf1c \uc815\ubcf4\ub97c \uc804\uc1a1\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc8fc\ud30c\uc218 \ubcc0\uc870(FM, Frequency Modulation): \uc804\uc790\uae30\ud30c\uc758 \uc8fc\ud30c\uc218\ub97c \ubcc0\ud654\uc2dc\ucf1c \uc815\ubcf4\ub97c \uc804\uc1a1\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc774 \uc678\uc5d0\ub3c4 \uc704\uc0c1 \ubcc0\uc870(PM), \ub514\uc9c0\ud138 \ubcc0\uc870(QAM, PSK \ub4f1)\uc640 \uac19\uc740 \ub2e4\uc591\ud55c \ubcc0\uc870 \ubc29\ubc95\uc774 \uc874\uc7ac\ud569\ub2c8\ub2e4.<\/p>\n<h2>\uc548\ud14c\ub098<\/h2>\n<p>\uc548\ud14c\ub098\ub294 \uc804\uc790\uae30\ud30c\ub97c \uacf5\uac04\uc73c\ub85c \ubc29\ucd9c\ud558\uace0 \uc218\uc2e0\ud558\ub294 \uc7a5\uce58\uc785\ub2c8\ub2e4. \uc1a1\uc2e0\uae30 \uc548\ud14c\ub098\ub294 \uc8fc\uc5b4\uc9c4 \uc8fc\ud30c\uc218\uc5d0 \ub300\ud574 \ud2b9\uc815\ud55c \uc9c0\ud5a5\uc131(directivity)\uacfc \uc774\ub4dd(gain)\uc744 \uac00\uc9c0\uace0 \uc124\uacc4\ub429\ub2c8\ub2e4. \uc548\ud14c\ub098\uc758 \uc774\ub4dd\uc740 \ubc29\ucd9c\ub418\ub294 \uc804\uc790\uae30\ud30c\uc758 \ud798\uc744 \uac15\ud654\uc2dc\ud0a4\ub294 \uc5ed\ud560\uc744 \ud558\uba70, \uc9c0\ud5a5\uc131\uc740 \uc804\uc790\uae30\ud30c\uac00 \ud2b9\uc815 \ubc29\ud5a5\uc73c\ub85c \ub354 \uc798 \uc804\uc1a1\ub418\ub3c4\ub85d \ud569\ub2c8\ub2e4.<\/p>\n<h2>\uacb0\ub860<\/h2>\n<p>\uc1a1\uc2e0\uae30\ub294 \uace0\ub3c4\uc758 \uacf5\ud559\uae30\uc220\uacfc \ubb3c\ub9ac\ud559\uc744 \ubc14\ud0d5\uc73c\ub85c \ud55c \uc7a5\uce58\uc785\ub2c8\ub2e4. \ub514\uc9c0\ud138 \ubcc0\uc870 \uae30\uc220\uc758 \ubc1c\uc804\uacfc \ud568\uaed8 \ub514\uc9c0\ud138 \ud1b5\uc2e0 \uc2dc\ub300\uac00 \uc5f4\ub9bc\uc73c\ub85c\uc368, \uc1a1\uc2e0\uae30\uc758 \uc5ed\ud560\uc740 \uc810\uc810 \ub354 \uc911\uc694\ud574\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub807\uac8c \ubcf5\uc7a1\ud55c \uc6d0\ub9ac\uc640 \uae30\uc220\uc774 \uc9d1\uc57d\ub41c \uc1a1\uc2e0\uae30\ub294 \uc6b0\ub9ac\uac00 \uc77c\uc0c1\uc5d0\uc11c \ub204\ub9ac\ub294 \ub2e4\uc591\ud55c \ubb34\uc120\ud1b5\uc2e0\uc758 \uae30\ucd08\ub97c \uc774\ub8e8\uba70, \ud604\ub300 \uc0ac\ud68c\uc5d0\uc11c \uc5c6\uc5b4\uc11c\ub294 \uc548 \ub420 \ud544\uc218 \uc694\uc18c\uac00 \ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc1a1\uc2e0\uae30\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \uad6c\uc131 \uc694\uc18c\ub97c \uc124\uba85\ud558\uba70, \uc804\uc790\uae30\ud30c\uc758 \ubc1c\uc0dd\ubd80\ud130 \ubcc0\uc870, \uc548\ud14c\ub098\ub97c \ud1b5\ud55c \ubc29\ucd9c\uae4c\uc9c0 \ubb34\uc120\ud1b5\uc2e0\uc758 \uc911\uc2ec\uc801 \uc5ed\ud560\uc744 \ub2e4\ub8f9\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":169892,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[88],"tags":[89],"class_list":["post-146668","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-88","tag-89","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>\uc1a1\uc2e0\uae30 | \uc791\ub3d9 \ubc29\uc2dd, \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 \ubc0f \uc7a5\uc810<\/title>\n<meta name=\"description\" content=\"\uc1a1\uc2e0\uae30\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \uad6c\uc131 \uc694\uc18c\ub97c \uc124\uba85\ud558\uba70, \uc804\uc790\uae30\ud30c\uc758 \ubc1c\uc0dd\ubd80\ud130 \ubcc0\uc870, \uc548\ud14c\ub098\ub97c \ud1b5\ud55c 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