{"id":146759,"date":"2024-04-27T12:38:20","date_gmt":"2024-04-27T12:38:20","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%eb%a7%88%ec%9d%b4%ed%81%ac%eb%a1%9c%ed%8c%8c-%ed%95%a9%ec%84%b1%ea%b8%b0\/"},"modified":"2024-04-27T12:38:20","modified_gmt":"2024-04-27T12:38:20","slug":"%eb%a7%88%ec%9d%b4%ed%81%ac%eb%a1%9c%ed%8c%8c-%ed%95%a9%ec%84%b1%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%eb%a7%88%ec%9d%b4%ed%81%ac%eb%a1%9c%ed%8c%8c-%ed%95%a9%ec%84%b1%ea%b8%b0\/","title":{"rendered":"\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30"},"content":{"rendered":"<p class=\"sidekick\">\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\uc5d0 \ub300\ud55c \uad6c\uc870, \uc6d0\ub9ac, \uc751\uc6a9\uc744 \uc124\uba85\ud558\ub294 \uae30\uc0ac\ub85c, \ud1b5\uc2e0\uc5d0\uc11c \uc758\ub8cc \uc7a5\ube44\uc5d0 \uc774\ub974\ub294 \ub2e4\uc591\ud55c \ubd84\uc57c\uc758 \ud575\uc2ec \uae30\uc220\uc5d0 \ucd08\uc810\uc744 \ub9de\ucda5\ub2c8\ub2e4.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2024\/04\/\ub9c8\uc774\ud06c\ub85c\ud30c-\ud569\uc131\uae30.png\" alt=\"\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\"\/><\/p>\n<h2>\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\uc758 \uc6d0\ub9ac\uc640 \uc751\uc6a9<\/h2>\n<p>\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\ub294 \uc804\uc790\uae30\ud30c \uc911\uc5d0\uc11c \ub9c8\uc774\ud06c\ub85c\ud30c \ubc94\uc704\uc758 \uc8fc\ud30c\uc218\ub97c \uc815\ubc00\ud558\uac8c \uc0dd\uc131, \uc870\uc808 \ubc0f \ubd84\uc11d\ud560 \uc218 \uc788\ub294 \uc7a5\uce58\uc785\ub2c8\ub2e4. \ub9c8\uc774\ud06c\ub85c\ud30c\ub294 \uc8fc\ud30c\uc218\uac00 300MHz\uc5d0\uc11c 300GHz \ubc94\uc704\uc5d0 \ud574\ub2f9\ud558\ub294 \uc804\uc790\uae30\ud30c\ub85c, \ud1b5\uc2e0, \ub808\uc774\ub354, \uc758\ub8cc \uc7a5\ube44, \uadf8\ub9ac\uace0 \uac00\uc815\uc6a9 \uc804\uc790\ub808\uc778\uc9c0\uc640 \uac19\uc740 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. <\/p>\n<h2>\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\uc758 \uad6c\uc870<\/h2>\n<p>\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\uc758 \uae30\ubcf8 \uad6c\uc870\ub294 \uc8fc\ud30c\uc218 \ubc1c\uc0dd\uae30, \ubaa8\ub4c8\ub798\uc774\ud130, \uc99d\ud3ed\uae30 \ubc0f \uae30\ud0c0 \ud544\ud130\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. \uc774\ub4e4\uc740 \uc8fc\ud30c\uc218\uc758 \uc0dd\uc131, \ubcc0\uc870, \uc99d\ud3ed \ubc0f \uc815\uc81c\uc5d0 \uac01\uac01 \uae30\uc5ec\ud569\ub2c8\ub2e4. \uc8fc\ud30c\uc218 \ud569\uc131\uc774\ub780 \uc77c\uc815\ud55c \uc8fc\ud30c\uc218\ub97c \uac00\uc9c0\ub294 \ud30c\ud615\uc744 \ub9cc\ub4e4\uc5b4\ub0b4\ub294 \uac83\uc744 \ub9d0\ud569\ub2c8\ub2e4. \uc5ec\uae30\uc11c \uc911\uc694\ud55c \uac1c\ub150\uc740 \uc704\uc0c1 \uace0\uc815 \ub8e8\ud504 (PLL, Phase Locked Loop)\uc640 \uc8fc\ud30c\uc218 \ud63c\ud569\uae30\uc785\ub2c8\ub2e4. <\/p>\n<ul>\n<li><u>\uc704\uc0c1 \uace0\uc815 \ub8e8\ud504 (PLL)<\/u>: \uc8fc\ud30c\uc218\ub97c \uc815\ubc00\ud558\uac8c \uc81c\uc5b4\ud558\uae30 \uc704\ud574\uc11c \uc0ac\uc6a9\ub418\ub294 \uc804\uc790 \uc2dc\uc2a4\ud15c\uc785\ub2c8\ub2e4. PLL\uc744 \ud1b5\ud574 \uc785\ub825 \uc2dc\uadf8\ub110\uc758 \uc8fc\ud30c\uc218\uc640 \uc704\uc0c1\uc744 \ucd94\uc801\ud558\uace0 \ub9de\ucd94\uc5b4 \uac00\uba70, \uc774\ub97c \ubc14\ud0d5\uc73c\ub85c \uc548\uc815\uc801\uc778 \uc8fc\ud30c\uc218 \ucd9c\ub825\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/li>\n<li><u>\uc8fc\ud30c\uc218 \ud63c\ud569\uae30<\/u>: \ub450 \uac1c\uc758 \uc8fc\ud30c\uc218\ub97c \uacb0\ud569\ud558\uc5ec \uc0c8\ub85c\uc6b4 \uc8fc\ud30c\uc218\ub97c \uc0dd\uc131\ud558\ub294 \uc7a5\uce58\uc785\ub2c8\ub2e4. \uae30\ubcf8\uc801\uc73c\ub85c \uc6d0\ud558\ub294 \uc8fc\ud30c\uc218\uc640 \uc774\ub97c \uc0dd\uc131\ud558\uae30 \uc704\ud55c \ucc38\uc870 \uc8fc\ud30c\uc218\ub97c \ud63c\ud569\ud558\uc5ec \uc6d0\ud558\ub294 \uc2e0\ud638 \uc8fc\ud30c\uc218\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\uc758 \uc791\ub3d9 \uc6d0\ub9ac<\/h2>\n<p>\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\ub294 \uc8fc\ub85c \uc704\uc0c1 \uace0\uc815 \ub8e8\ud504 (PLL) \uae30\uc220\uc744 \ud65c\uc6a9\ud558\uc5ec \uc815\ubc00\ud55c \uc8fc\ud30c\uc218 \uc81c\uc5b4\ub97c \uc218\ud589\ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ub098\uc624\ub294 \uc2e0\ud638\ub294 \uc5ec\ub7ec \ub2e8\uacc4\uc758 \uc8fc\ud30c\uc218 \ud63c\ud569\uacfc \uc99d\ud3ed \uacfc\uc815\uc744 \uac70\uccd0 \ucd5c\uc885\uc801\uc73c\ub85c \ub9c8\uc774\ud06c\ub85c\ud30c \uc8fc\ud30c\uc218\ub85c \ubcc0\ud658\ub429\ub2c8\ub2e4. \uc815\ud655\ud55c \uc8fc\ud30c\uc218\uc640 \uc704\uc0c1 \uc81c\uc5b4\ub97c \uc704\ud574 \ub85c\uceec \uc624\uc2e4\ub808\uc774\ud130 (Local Oscillator, LO), \ucc38\uc870 \uc624\uc2e4\ub808\uc774\ud130, \uadf8\ub9ac\uace0 \ub514\uc9c0\ud138 \uc2e0\ud638 \ucc98\ub9ac\uae30 \ub4f1\uc774 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<ol>\n<li>\ub85c\uceec \uc624\uc2e4\ub808\uc774\ud130 (LO)\ub97c \ud1b5\ud574 \uae30\ubcf8 \uc2e0\ud638\ub97c \ubc1c\uc0dd\uc2dc\ud0b5\ub2c8\ub2e4.<\/li>\n<li>\uc774 \uae30\ubcf8 \uc2e0\ud638\ub294 \ucc38\uc870 \uc624\uc2e4\ub808\uc774\ud130\uc640 \ud63c\ud569\ub418\uc5b4 PLL\uc5d0 \uc758\ud574 \uc704\uc0c1\uc774 \uc7a0\uae08\ub429\ub2c8\ub2e4.<\/li>\n<li>PLL \ucc98\ub9ac \uacfc\uc815\uc744 \uac70\uccd0 \uc815\ud655\ud55c \uc704\uc0c1\uacfc \uc8fc\ud30c\uc218\ub97c \uac16\ub294 \uc2e0\ud638\uac00 \uc0dd\uc131\ub429\ub2c8\ub2e4.<\/li>\n<li>\ucd5c\uc885\uc801\uc73c\ub85c, \uc0dd\uc131\ub41c \uc2e0\ud638\ub294 \ud544\uc694\ud55c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \ub9de\ucdb0 \uc99d\ud3ed \ubc0f \ud544\ud130\ub9c1\uacfc\uc815\uc744 \uac70\uce69\ub2c8\ub2e4.<\/li>\n<\/ol>\n<p>\uc774\ub7ec\ud55c \uacfc\uc815\uc744 \ud1b5\ud574 \ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\ub294 \uace0\uc815\ubc00 \ubc0f \uc548\uc815\uc801\uc778 \ub9c8\uc774\ud06c\ub85c\ud30c \uc2e0\ud638\ub97c \ub2e4\uc591\ud55c \uc804\uc790\uae30\uae30\uc5d0 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<h2>\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\uc758 \uc751\uc6a9 \ubd84\uc57c<\/h2>\n<p>\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\ub294 \ub113\uc740 \ubc94\uc704\uc758 \uc751\uc6a9 \ubd84\uc57c\ub97c \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uace0\uc8fc\ud30c\uc218\uc758 \uc548\uc815\uc801\uc774\uace0 \uc815\ubc00\ud55c \uc2e0\ud638 \ubc1c\uc0dd \ub2a5\ub825 \ub355\ubd84\uc785\ub2c8\ub2e4.<\/p>\n<ul>\n<li><u>\ud1b5\uc2e0<\/u>: \ud734\ub300\ud3f0, \uc704\uc131 \ud1b5\uc2e0 \ubc0f \ubb34\uc120 \ub370\uc774\ud130 \uc804\uc1a1\uacfc \uac19\uc740 \ud1b5\uc2e0 \uae30\uc220\uc5d0 \ud575\uc2ec\uc801\uc778 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/li>\n<li><u>\ub808\uc774\ub354 \uc2dc\uc2a4\ud15c<\/u>: \ube44\ud589\uae30, \uc120\ubc15, \uae30\uc0c1\uad00\uce21 \ubc0f \uad70\uc0ac \ubd84\uc57c\uc758 \ub808\uc774\ub354 \uc2dc\uc2a4\ud15c\uc5d0 \uc0ac\uc6a9\ub418\uc5b4 \ubb3c\uccb4\uc758 \uc704\uce58 \ubc0f \uc18d\ub3c4\ub97c \uce21\uc815\ud569\ub2c8\ub2e4.<\/li>\n<li><u>\uc758\ub8cc \uae30\uae30<\/u>: MRI(\uc790\uae30\uacf5\uba85\uc601\uc0c1)\uc640 \uac19\uc740 \uace0\uae09 \uc758\ub8cc \uc601\uc0c1 \uc7a5\ube44\uc5d0 \uc0ac\uc6a9\ub418\uc5b4, \uace0\ud574\uc0c1\ub3c4 \uc601\uc0c1\uc744 \uc0dd\uc131\ud558\ub294 \ub370 \ud544\uc694\ud55c \uc815\ubc00\ud55c \uc8fc\ud30c\uc218\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<li><u>\uacfc\ud559 \uc5f0\uad6c<\/u>: \ubb3c\ub9ac, \ud654\ud559, \uc0dd\ubb3c\ud559\uacfc \uad00\ub828\ub41c \uc2e4\ud5d8 \ubc0f \uc5f0\uad6c\uc5d0 \uc0ac\uc6a9\ub418\uc5b4 \ubbf8\uc138\ud55c \uc804\uc790\uae30 \uc2e0\ud638\uc758 \ubcc0\ud654\ub97c \uad00\uce21\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\ub294 \uc774\ub7ec\ud55c \ubd84\uc57c\uc5d0\uc11c \uc694\uad6c\ub418\ub294 \ub192\uc740 \uc815\ud655\ub3c4\uc640 \uc2e0\ub8b0\uc131\uc744 \ucda9\uc871\uc2dc\ud0a4\ub294 \uc911\uc694\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4. \ud2b9\ud788 \uace0\uc8fc\ud30c\uc218\uc640 \uace0\uc815\ubc00\ub3c4\uac00 \ud544\uc218\uc801\uc778 \uc751\uc6a9\uc5d0\uc11c \uadf8 \uac00\uce58\ub97c \ubc1c\ud718\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\uc758 \uc9c0\uc18d\uc801\uc778 \uae30\uc220 \ubc1c\uc804\uc740 \ud1b5\uc2e0, \uc758\ub8cc, \uadf8\ub9ac\uace0 \uacfc\ud559 \ubd84\uc57c\uc5d0\uc11c \ub354 \ub9ce\uc740 \ud601\uc2e0\uc744 \uac00\uc838\uc624\uac8c \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\uc5d0 \ub300\ud55c \uad6c\uc870, \uc6d0\ub9ac, \uc751\uc6a9\uc744 \uc124\uba85\ud558\ub294 \uae30\uc0ac\ub85c, \ud1b5\uc2e0\uc5d0\uc11c \uc758\ub8cc \uc7a5\ube44\uc5d0 \uc774\ub974\ub294 \ub2e4\uc591\ud55c \ubd84\uc57c\uc758 \ud575\uc2ec \uae30\uc220\uc5d0 \ucd08\uc810\uc744 \ub9de\ucda5\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":170711,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[88],"tags":[89],"class_list":["post-146759","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>\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30 | \uc791\ub3d9 \ubc29\uc2dd, \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 \ubc0f \uc7a5\uc810<\/title>\n<meta name=\"description\" content=\"\ub9c8\uc774\ud06c\ub85c\ud30c \ud569\uc131\uae30\uc5d0 \ub300\ud55c \uad6c\uc870, \uc6d0\ub9ac, \uc751\uc6a9\uc744 \uc124\uba85\ud558\ub294 \uae30\uc0ac\ub85c, \ud1b5\uc2e0\uc5d0\uc11c 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