\u3000\u3000\u5728\u7535\u78c1\u6ce2\u4f20\u64ad\u4e2d\uff0c\u53cd\u5c04\u7cfb\u6570\u548c\u963b\u6297\u662f\u4e24\u4e2a\u91cd\u8981\u7684\u53c2\u6570\u3002\u5b83\u4eec\u4e0d\u4ec5\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7406\u89e3\u7535\u78c1\u6ce2\u5728\u4e0d\u540c\u4ecb\u8d28\u4e2d\u7684\u4f20\u64ad\u7279\u6027\uff0c\u8fd8\u5bf9\u4e8e\u7535\u5b50\u5de5\u7a0b\u3001\u901a\u4fe1\u5de5\u7a0b\u7b49\u9886\u57df\u5177\u6709\u91cd\u8981\u7684\u5e94\u7528\u4ef7\u503c\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u53cd\u5c04\u7cfb\u6570\u548c\u963b\u6297\u7684\u6982\u5ff5\u548c\u8ba1\u7b97\u516c\u5f0f\uff0c\u5e76\u63a2\u8ba8\u5b83\u4eec\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u610f\u4e49\u3002<\/p>\n\n\n\n
\u3000\u30001. \u53cd\u5c04\u7cfb\u6570(Reflection Coefficient)\u5728\u4e00\u4e2a\u7ebf\u8def\u4e0a,\u53cd\u5c04\u7cfb\u6570 \u03b3 \u5b9a\u4e49\u4e3a\u53cd\u5c04\u6ce2\u7535\u538b(\u6216\u7535\u6d41)\u4e0e\u5165\u5c04\u6ce2\u7535\u538b(\u6216\u7535\u6d41)\u7684\u6bd4\u503c\u3002<\/p>\n\n\n\n
\u3000\u3000\u03b3 = Er \/ Ei \u6216 \u03b3 = Ir \/ Ii\u5176\u4e2d,Er\u3001Ir \u4e3a\u53cd\u5c04\u6ce2\u7684\u7535\u538b\u3001\u7535\u6d41;Ei\u3001Ii \u4e3a\u5165\u5c04\u6ce2\u7684\u7535\u538b\u3001\u7535\u6d41\u3002<\/p>\n\n\n\n
\u3000\u30002. \u963b\u6297(Impedance)\u5728\u4f20\u8f93\u7ebf\u4e2d,\u8d1f\u8f7d\u963b\u6297Zl\u4e0e\u7279\u5f81\u963b\u6297Z0\u7684\u6bd4\u503c\u51b3\u5b9a\u53cd\u5c04\u7cfb\u6570\u7684\u5927\u5c0f\u3002<\/p>\n\n\n\n
\u3000\u3000\u5f53 Zl = Z0 \u65f6,\u03b3 = 0.\u65e0\u53cd\u5c04\u73b0\u8c61\u3002<\/p>\n\n\n\n
\u3000\u3000\u5f53 Zl \u2260 Z0 \u65f6,\u4f1a\u4ea7\u751f\u53cd\u5c04\u3002\u03b3 = (Zl – Z0) \/ (Zl + Z0)<\/p>\n\n\n\n
\u3000\u30003. \u590d\u53cd\u5c04\u7cfb\u6570\u5bf9\u4e8e\u5b58\u5728\u591a\u4e2a\u4e0d\u5339\u914d\u7684\u963b\u6297\u65ad\u9762,\u590d\u53cd\u5c04\u7cfb\u6570 \u0393 \u8868\u793a\u7cfb\u7edf\u7684\u603b\u4f53\u53cd\u5c04\u6548\u5e94\u3002<\/p>\n\n\n\n
\u3000\u3000\u0393 = \u03b31 + \u03c11\u03c12\u03b32 + \u03c11\u03c12\u03c13\u03b33 + …<\/p>\n\n\n\n
\u3000\u3000\u5176\u4e2d,\u03c1i \u4e3a\u7b2ci\u6bb5\u7ebf\u8def\u7684\u53cd\u5c04\u7cfb\u6570,\u03b3i\u4e3a\u7b2ci\u4e2a\u4e0d\u5339\u914d\u65ad\u9762\u7684\u53cd\u5c04\u7cfb\u6570\u3002<\/p>\n\n\n\n
\u3000\u30004. \u8fd4\u56de\u635f\u8017(Return Loss)\u8fd4\u56de\u635f\u8017\u8868\u793a\u53cd\u5c04\u6ce2\u5bf9\u5165\u5c04\u6ce2\u7684\u635f\u8017\u6548\u5e94,\u4e00\u822c\u7528\u5206\u8d1d\u8868\u793a\u3002<\/p>\n\n\n\n
\u3000\u3000RL = -20log|\u0393|<\/p>\n\n\n\n
\u3000\u3000\u53cd\u5c04\u7cfb\u6570\u548c\u963b\u6297\u5728\u7535\u5b50\u5de5\u7a0b\u3001\u901a\u4fe1\u5de5\u7a0b\u7b49\u9886\u57df\u5177\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\u3002<\/p>\n\n\n\n
\u3000\u3000\u53cd\u5c04\u7cfb\u6570\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7406\u89e3\u7535\u78c1\u6ce2\u5728\u4e0d\u540c\u4ecb\u8d28\u4e4b\u95f4\u4f20\u64ad\u65f6\u7684\u53cd\u5c04\u60c5\u51b5\u3002\u901a\u8fc7\u8ba1\u7b97\u53cd\u5c04\u7cfb\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u9884\u6d4b\u7535\u78c1\u6ce2\u5728\u4ecb\u8d28\u4e4b\u95f4\u7684\u4f20\u64ad\u635f\u8017\uff0c\u5e76\u6839\u636e\u9700\u8981\u8fdb\u884c\u76f8\u5e94\u7684\u8865\u507f\u63aa\u65bd\u3002\u5728\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u53cd\u5c04\u7cfb\u6570\u7684\u5927\u5c0f\u76f4\u63a5\u5f71\u54cd\u4fe1\u53f7\u7684\u5f3a\u5ea6\u548c\u8d28\u91cf\uff0c\u56e0\u6b64\u5bf9\u4e8e\u65e0\u7ebf\u4fe1\u53f7\u7684\u4f20\u8f93\u548c\u63a5\u6536\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/p>\n\n\n\n
\u3000\u3000\u963b\u6297\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7406\u89e3\u7535\u78c1\u6ce2\u5728\u4ecb\u8d28\u4e2d\u4f20\u64ad\u65f6\u7684\u80fd\u91cf\u635f\u8017\u60c5\u51b5\u3002\u901a\u8fc7\u8ba1\u7b97\u963b\u6297\uff0c\u6211\u4eec\u53ef\u4ee5\u8bc4\u4f30\u7535\u78c1\u6ce2\u5728\u4ecb\u8d28\u4e2d\u7684\u4f20\u8f93\u6548\u7387\uff0c\u5e76\u6839\u636e\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u4ecb\u8d28\u548c\u4f20\u8f93\u65b9\u5f0f\u3002\u5728\u7535\u5b50\u8bbe\u5907\u8bbe\u8ba1\u548c\u901a\u4fe1\u7cfb\u7edf\u4f18\u5316\u4e2d\uff0c\u963b\u6297\u7684\u5408\u7406\u9009\u62e9\u548c\u5339\u914d\u80fd\u591f\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u6548\u7387\u3002<\/p>\n\n\n\n
\u3000\u3000\u53cd\u5c04\u7cfb\u6570\u548c\u963b\u6297\u662f\u7535\u78c1\u6ce2\u4f20\u64ad\u4e2d\u7684\u91cd\u8981\u53c2\u6570\uff0c\u5b83\u4eec\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7406\u89e3\u7535\u78c1\u6ce2\u5728\u4e0d\u540c\u4ecb\u8d28\u4e2d\u7684\u4f20\u64ad\u7279\u6027\uff0c\u5e76\u5bf9\u7535\u5b50\u5de5\u7a0b\u3001\u901a\u4fe1\u5de5\u7a0b\u7b49\u9886\u57df\u7684\u5b9e\u9645\u5e94\u7528\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/strong>\u901a\u8fc7\u8ba1\u7b97\u53cd\u5c04\u7cfb\u6570\u548c\u963b\u6297\uff0c\u6211\u4eec\u53ef\u4ee5\u9884\u6d4b\u7535\u78c1\u6ce2\u7684\u4f20\u8f93\u635f\u8017\u548c\u80fd\u91cf\u635f\u8017\uff0c\u5e76\u6839\u636e\u9700\u8981\u8fdb\u884c\u76f8\u5e94\u7684\u8865\u507f\u548c\u4f18\u5316\u63aa\u65bd\u3002\u5728\u672a\u6765\u7684\u7814\u7a76\u548c\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u8fdb\u4e00\u6b65\u6df1\u5165\u63a2\u7d22\u53cd\u5c04\u7cfb\u6570\u548c\u963b\u6297\u7684\u8ba1\u7b97\u65b9\u6cd5\u548c\u5e94\u7528\u573a\u666f\uff0c\u4ee5\u63a8\u52a8\u7535\u78c1\u6ce2\u4f20\u64ad\u6280\u672f\u7684\u53d1\u5c55\u548c\u5e94\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" \u5728\u7535\u78c1\u6ce2\u4f20\u64ad\u4e2d\uff0c\u53cd\u5c04\u7cfb\u6570\u548c\u963b\u6297\u662f\u4e24\u4e2a\u91cd\u8981\u7684\u53c2\u6570\u3002\u5b83\u4eec\u4e0d\u4ec5\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7406\u89e3\u7535\u78c1\u6ce2\u5728\u4e0d\u540c\u4ecb\u8d28\u4e2d\u7684\u4f20\u64ad\u7279\u6027\uff0c\u8fd8\u5bf9\u4e8e\u7535\u5b50\u5de5\u7a0b\u3001\u901a\u4fe1\u5de5\u7a0b\u7b49\u9886\u57df\u5177\u6709\u91cd\u8981\u7684\u5e94\u7528\u4ef7\u503c\u3002<\/p>\n","protected":false},"author":1,"featured_media":3671,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[36],"tags":[45],"class_list":["post-8847","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-txxt"],"_links":{"self":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/8847","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/comments?post=8847"}],"version-history":[{"count":0,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/posts\/8847\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media\/3671"}],"wp:attachment":[{"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/media?parent=8847"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/categories?post=8847"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techphant.cn\/wp-json\/wp\/v2\/tags?post=8847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}