{"id":148023,"date":"2024-04-27T15:28:26","date_gmt":"2024-04-27T15:28:26","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ec%9c%a0%ec%9e%90-%eb%b2%a1%ed%84%b0-%eb%84%a4%ed%8a%b8%ec%9b%8c%ed%81%ac-%eb%b6%84%ec%84%9d%ea%b8%b0\/"},"modified":"2024-04-27T15:28:26","modified_gmt":"2024-04-27T15:28:26","slug":"%ec%9c%a0%ec%9e%90-%eb%b2%a1%ed%84%b0-%eb%84%a4%ed%8a%b8%ec%9b%8c%ed%81%ac-%eb%b6%84%ec%84%9d%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ec%9c%a0%ec%9e%90-%eb%b2%a1%ed%84%b0-%eb%84%a4%ed%8a%b8%ec%9b%8c%ed%81%ac-%eb%b6%84%ec%84%9d%ea%b8%b0\/","title":{"rendered":"\uc720\uc790 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30"},"content":{"rendered":"<p class=\"sidekick\">\uc720\uc790 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\uc758 \uae30\ub2a5\uacfc \uc6d0\ub9ac\ub97c \uc124\uba85\ud558\uace0, \uc804\uc790 \ubd80\ud488 \uc131\ub2a5 \ud3c9\uac00\uc5d0 \uc911\uc694\ud55c \uc774\uc720\uc640 \uc0ac\uc6a9 \ubc29\ubc95\uc744 \uc790\uc138\ud788 \uc18c\uac1c\ud569\ub2c8\ub2e4.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2024\/04\/\uc720\uc790-\ubca1\ud130-\ub124\ud2b8\uc6cc\ud06c-\ubd84\uc11d\uae30.png\" alt=\"\uc720\uc790 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\"\/><\/p>\n<h2>\uc720\uc790 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\uc758 \uae30\ubcf8 \uc6d0\ub9ac<\/h2>\n<p>\uc720\uc790 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30(VNA: Vector Network Analyzer)\ub294 \uc804\uae30\uc801 \ub124\ud2b8\uc6cc\ud06c\uc758 \ud30c\ub77c\ubbf8\ud130\ub97c \uce21\uc815\ud558\ub294 \ub370 \uc0ac\uc6a9\ub418\ub294 \uace0\ub3c4\uc758 \uc815\ubc00 \uce21\uc815 \uc7a5\ube44\uc785\ub2c8\ub2e4. VNA\ub294 \uc8fc\ub85c \uc804\uc1a1\uc120, \ud544\ud130, \uc570\ud504\uc640 \uac19\uc740 \uace0\uc8fc\ud30c \uc804\uc790 \ubd80\ud488\uc758 \uc131\ub2a5\uc744 \ud3c9\uac00\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc548\ud14c\ub098\uc758 \uc124\uacc4\uc5d0\uc11c VNA\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc548\ud14c\ub098\uc758 \ubc18\uc0ac \uc190\uc2e4(Return Loss)\uc774\ub098 \uc784\ud53c\ub358\uc2a4 \ub4f1\uc744 \uce21\uc815\ud558\uace0 \ubd84\uc11d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\uc2a4\uce7c\ub77c\uc640 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\uc758 \ucc28\uc774<\/h2>\n<p>\ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\ub294 \ud06c\uac8c \uc2a4\uce7c\ub77c(scalar)\uc640 \ubca1\ud130(vector) \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\ub85c \ub098\ub269\ub2c8\ub2e4. \uc2a4\uce7c\ub77c \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30(SNA)\ub294 \uc8fc\ub85c \ub2e8\uc21c\ud55c \ud06c\uae30(magnitude) \uc815\ubcf4\ub9cc\uc744 \uc81c\uacf5\ud558\ub294 \ubc18\uba74, <strong>\uc720\uc790 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30<\/strong>\ub294 \ud06c\uae30\ubfd0\ub9cc \uc544\ub2c8\ub77c \uc704\uc0c1(phase) \uc815\ubcf4\uae4c\uc9c0 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub294 \uc804\uc790\ud30c \uc2e0\ud638\uc758 \ubcc0\ub3d9\uc774\ub098 \ubc18\uc0ac, \ud1b5\uacfc\ud560 \ub54c\uc758 \ubcc0\ud654\ub97c \uc815\ud655\ud558\uac8c \ud30c\uc545\ud558\uae30 \uc704\ud574 \ubc18\ub4dc\uc2dc \ud544\uc694\ud55c \uae30\ub2a5\uc785\ub2c8\ub2e4.<\/p>\n<h2>\uc720\uc790 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\uc758 \uad6c\uc131 \uc694\uc18c<\/h2>\n<ul>\n<li>\uc2e0\ud638 \ubc1c\uc0dd\uae30 &#8211; \ud14c\uc2a4\ud2b8\ud560 \ubd80\ud488\uc5d0 \uc785\ub825 \uc2e0\ud638\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc2e0\ud638 \uc218\uc2e0\uae30 &#8211; \ud14c\uc2a4\ud2b8 \ubd80\ud488\uc5d0\uc11c \ubc18\uc0ac\ub418\uac70\ub098 \ud1b5\uacfc\ub41c \uc2e0\ud638\ub97c \uc218\uc2e0\ud569\ub2c8\ub2e4.<\/li>\n<li>\ub370\uc774\ud130 \ud504\ub85c\uc138\uc11c &#8211; \uc218\uc2e0\ub41c \uc2e0\ud638\uc758 \ud06c\uae30\uc640 \uc704\uc0c1\uc744 \ubd84\uc11d\ud558\uace0 \ub370\uc774\ud130\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4.<\/li>\n<li>\ub514\uc2a4\ud50c\ub808\uc774 &#8211; \ubd84\uc11d\ub41c \ub370\uc774\ud130\ub97c \uc0ac\uc6a9\uc790\uac00 \uc774\ud574\ud558\uae30 \uc26c\uc6b4 \uadf8\ub798\ud504\ub098 \ud45c\ub85c \ud45c\uc2dc\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>\uc720\uc790 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\uc758 \uc8fc\uc694 \uce21\uc815 \ud30c\ub77c\ubbf8\ud130<\/h2>\n<ol>\n<li><u>S \ud30c\ub77c\ubbf8\ud130 (Scattering Parameters)<\/u>: \ub124\ud2b8\uc6cc\ud06c\uc758 \ubc18\uc0ac\uc640 \uc804\ub2ec \ud2b9\uc131\uc744 \ub098\ud0c0\ub0b4\ub294 \ud30c\ub77c\ubbf8\ud130\uc785\ub2c8\ub2e4.<\/li>\n<li><u>\uc784\ud53c\ub358\uc2a4 (Impedance)<\/u>: \ub124\ud2b8\uc6cc\ud06c\uac00 \uc804\uae30\uc801 \uc2e0\ud638\uc758 \ud750\ub984\uc744 \uc5bc\ub9c8\ub098 \uc800\ud56d\ud558\ub294\uc9c0 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/li>\n<li><u>\ubc18\uc0ac \uc190\uc2e4 (Return Loss)<\/u>: \uc785\ub825\ub41c \uc2e0\ud638\uc758 \uc5b4\ub290 \uc815\ub3c4\uac00 \ubc18\uc0ac\ub418\ub294\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \ucc99\ub3c4\uc785\ub2c8\ub2e4.<\/li>\n<li><u>\uc0bd\uc785 \uc190\uc2e4 (Insertion Loss)<\/u>: \ub124\ud2b8\uc6cc\ud06c\ub97c \ud1b5\uacfc\ud560 \ub54c \uc2e0\ud638\uac00 \uc5bc\ub9c8\ub098 \uac10\uc1e0\ub418\ub294\uc9c0\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/li>\n<\/ol>\n<h2>\ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\uc758 \uce21\uc815 \uc608<\/h2>\n<p>\uc784\ud53c\ub358\uc2a4 <i>Z<\/i>\uac00 \ub124\ud2b8\uc6cc\ud06c\uc5d0 \uc758\ud574 \uacb0\uc815\ub420 \ub54c, \uc774\ub97c \uce21\uc815\ud558\uae30 \uc704\ud55c S-\ud30c\ub77c\ubbf8\ud130 \uc911 \ud558\ub098\ub294 S<sub>11<\/sub> \uc785\ub2c8\ub2e4. S<sub>11<\/sub>\uc740 \uc8fc\ub85c \ubc18\uc0ac \uacc4\uc218(reflection coefficient)\ub85c, \uc2e0\ud638 \ubc1c\uc0dd\uae30\ub85c\ubd80\ud130 \ub098\uc628 \uc2e0\ud638\uac00 \ub300\uc0c1 \ub124\ud2b8\uc6cc\ud06c\uc5d0 \ub3c4\ub2ec\ud558\uc5ec \uc5bc\ub9c8\ub098 \ubc18\uc0ac\ub418\ub294\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \uac12\uc785\ub2c8\ub2e4. \uacc4\uc0b0\uc2dd\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<p><i>S<sub>11<\/sub> = (Z &#8211; Z<sub>0<\/sub>) \/ (Z + Z<sub>0<\/sub>)<\/i><\/p>\n<p>\uc5ec\uae30\uc11c <i>Z<sub>0<\/sub><\/i>\ub294 \uc2dc\uc2a4\ud15c\uc758 \ud2b9\uc131 \uc784\ud53c\ub358\uc2a4\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n<h2>\uc720\uc790 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\uc758 \uc751\uc6a9<\/h2>\n<p>\uc720\uc790 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\ub294 \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c, \uc704\uc131\uacfc \ubb34\uc120 \ud1b5\uc2e0 \uc7a5\ube44, \uace0\uc8fc\ud30c \ud68c\ub85c \uc124\uacc4 \ubc0f \uad70\uc0ac\uc801 \ubaa9\uc801\uc73c\ub85c\ub3c4 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc815\ud655\ud558\uace0 \ubc29\ub300\ud55c \ub370\uc774\ud130\ub97c \uc81c\uacf5\ud568\uc73c\ub85c\uc368 \uc124\uacc4 \uc5d4\uc9c0\ub2c8\uc5b4\ub294 \uc804\uc790 \uae30\uae30\uc758 \uc131\ub2a5 \ud5a5\uc0c1\uc744 \uc704\ud55c \ubcf4\ub2e4 \ub098\uc740 \uacb0\uc815\uc744 \ub0b4\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc774\ub7ec\ud55c \uae30\ubcf8\uc801\uc778 \uc774\ud574\ub97c \ubc14\ud0d5\uc73c\ub85c, \uc720\uc790 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\ub294 \uc804\uc790\uacf5\ud559\uacfc \ubb3c\ub9ac\ud559\uc758 \uc2e4\uc6a9\uc801\uc778 \uc811\uc810\uc5d0 \uc11c \uc788\uc73c\uba70, \ud604\ub300 \uae30\uc220\uc758 \ubc1c\uc804\uc5d0 \uc788\uc5b4 \ud544\uc218\uc801\uc778 \ub3c4\uad6c\ub85c \uc790\ub9ac\uc7a1\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc720\uc790 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30\uc758 \uae30\ub2a5\uacfc \uc6d0\ub9ac\ub97c \uc124\uba85\ud558\uace0, \uc804\uc790 \ubd80\ud488 \uc131\ub2a5 \ud3c9\uac00\uc5d0 \uc911\uc694\ud55c \uc774\uc720\uc640 \uc0ac\uc6a9 \ubc29\ubc95\uc744 \uc790\uc138\ud788 \uc18c\uac1c\ud569\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":181887,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[88],"tags":[89],"class_list":["post-148023","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>\uc720\uc790 \ubca1\ud130 \ub124\ud2b8\uc6cc\ud06c \ubd84\uc11d\uae30 | \uc791\ub3d9 \ubc29\uc2dd, \uc751\uc6a9 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