{"id":38259,"date":"2023-09-24T18:34:21","date_gmt":"2023-09-24T10:34:21","guid":{"rendered":"\/\/www.viralrail.com\/?p=38259"},"modified":"2023-09-24T18:34:25","modified_gmt":"2023-09-24T10:34:25","slug":"hbshyzbbhsgs","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/38259.html","title":{"rendered":"\u56de\u6ce2\u635f\u8017\u4e0e\u9a7b\u6ce2\u6bd4\u6362\u7b97\u516c\u5f0f"},"content":{"rendered":"\n

\u3000\u3000\u5728\u4fe1\u53f7\u4f20\u8f93\u8fc7\u7a0b\u4e2d\uff0c\u56de\u6ce2\u635f\u8017\u548c\u9a7b\u6ce2\u6bd4\u662f\u4e24\u4e2a\u91cd\u8981\u7684\u6027\u80fd\u6307\u6807\u3002\u5b83\u4eec\u53cd\u6620\u4e86\u4fe1\u53f7\u5728\u4f20\u8f93\u7ebf\u4e0a\u7684\u8d28\u91cf\u548c\u5339\u914d\u5ea6\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u56de\u6ce2\u635f\u8017\u548c\u9a7b\u6ce2\u6bd4\u7684\u6982\u5ff5\uff0c\u5e76\u8be6\u7ec6\u89e3\u91ca\u5b83\u4eec\u4e4b\u95f4\u7684\u6362\u7b97\u5173\u7cfb\u3002\u540c\u65f6\uff0c\u6211\u4eec\u8fd8\u5c06\u63a2\u8ba8\u5982\u4f55\u5229\u7528\u8fd9\u4e9b\u6307\u6807\u6765\u8bc4\u4f30\u4fe1\u53f7\u4f20\u8f93\u7684\u7a33\u5b9a\u6027\u548c\u6709\u6548\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001\u56de\u6ce2\u635f\u8017\u7684\u5b9a\u4e49\u548c\u610f\u4e49<\/h2>\n\n\n\n

\u3000\u3000\u56de\u6ce2\u635f\u8017(Return Loss)\u662f\u6307\u4fe1\u53f7\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7531\u4e8e\u4e0d\u5b8c\u7f8e\u7684\u5339\u914d\u800c\u53d1\u751f\u7684\u53cd\u5c04\u635f\u8017\u3002\u5b83\u662f\u8861\u91cf\u4fe1\u53f7\u53cd\u5c04\u7a0b\u5ea6\u7684\u6307\u6807\uff0c\u901a\u5e38\u4ee5\u5206\u8d1d(dB)\u4e3a\u5355\u4f4d\u8868\u793a\u3002\u56de\u6ce2\u635f\u8017\u8d8a\u5927\uff0c\u8868\u793a\u4fe1\u53f7\u53cd\u5c04\u8d8a\u5c0f\uff0c\u4f20\u8f93\u8d28\u91cf\u8d8a\u597d\u3002<\/p>\n\n\n\n

\u3000\u3000\u56de\u6ce2\u635f\u8017\u7684\u8ba1\u7b97\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\u3000\u3000\u56de\u6ce2\u635f\u8017(dB)= 20log10(\u4fe1\u53f7\u7684\u5165\u5c04\u529f\u7387\/\u4fe1\u53f7\u7684\u53cd\u5c04\u529f\u7387)<\/strong><\/p>\n\n\n\n

\u3000\u3000\u56de\u6ce2\u635f\u8017\u7684\u9ad8\u4f4e\u76f4\u63a5\u5f71\u54cd\u7740\u4fe1\u53f7\u4f20\u8f93\u7684\u8d28\u91cf\u3002\u8f83\u4f4e\u7684\u56de\u6ce2\u635f\u8017\u610f\u5473\u7740\u66f4\u5c11\u7684\u4fe1\u53f7\u53cd\u5c04\u548c\u66f4\u597d\u7684\u4fe1\u53f7\u5339\u914d\uff0c\u4ece\u800c\u63d0\u9ad8\u4f20\u8f93\u6548\u7387\u548c\u51cf\u5c11\u4fe1\u53f7\u635f\u8017\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001\u9a7b\u6ce2\u6bd4\u7684\u5b9a\u4e49\u548c\u610f\u4e49<\/h2>\n\n\n\n

\u3000\u3000\u9a7b\u6ce2\u6bd4(Voltage Standing Wave Ratio\uff0c\u7b80\u79f0VSWR)\u662f\u6307\u4fe1\u53f7\u5728\u4f20\u8f93\u7ebf\u4e0a\u7684\u9a7b\u6ce2\u7a0b\u5ea6\u3002\u5b83\u662f\u8861\u91cf\u4fe1\u53f7\u5339\u914d\u5ea6\u7684\u6307\u6807\uff0c\u65e0\u5355\u4f4d\u3002<\/p>\n\n\n\n

\u3000\u3000\u9a7b\u6ce2\u6bd4\u7684\u8ba1\u7b97\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\u3000\u3000\u9a7b\u6ce2\u6bd4(VSWR)= (1 + \u0393) \/ (1 – \u0393)<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5176\u4e2d\uff0c\u0393\u4e3a\u53cd\u5c04\u7cfb\u6570\uff0c\u53cd\u6620\u4e86\u4fe1\u53f7\u7684\u53cd\u5c04\u7a0b\u5ea6\u3002<\/p>\n\n\n\n

\u3000\u3000\u9a7b\u6ce2\u6bd4\u8d8a\u63a5\u8fd1\u4e8e1.\u8868\u793a\u4fe1\u53f7\u5339\u914d\u8d8a\u597d\uff0c\u4f20\u8f93\u8d28\u91cf\u8d8a\u9ad8\u3002\u5f53\u9a7b\u6ce2\u6bd4\u8d85\u8fc71\u65f6\uff0c\u8868\u793a\u4fe1\u53f7\u53d1\u751f\u4e86\u53cd\u5c04\uff0c\u4f20\u8f93\u8d28\u91cf\u4e0b\u964d\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u635f\u8017\u548c\u4f20\u8f93\u9519\u8bef\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001\u56de\u6ce2\u635f\u8017\u4e0e\u9a7b\u6ce2\u6bd4\u7684\u6362\u7b97\u5173\u7cfb<\/h2>\n\n\n\n

\u3000\u3000\u56de\u6ce2\u635f\u8017\u548c\u9a7b\u6ce2\u6bd4\u4e4b\u95f4\u5b58\u5728\u4e00\u5b9a\u7684\u6362\u7b97\u5173\u7cfb\u3002\u5177\u4f53\u800c\u8a00\uff0c\u5b83\u4eec\u4e4b\u95f4\u7684\u6362\u7b97\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\u3000\u3000\u56de\u6ce2\u635f\u8017(dB)= -20log10[(VSWR – 1) \/ (VSWR + 1)]<\/strong><\/p>\n\n\n\n

\u3000\u3000\u901a\u8fc7\u8fd9\u4e2a\u6362\u7b97\u516c\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u5df2\u77e5\u7684\u9a7b\u6ce2\u6bd4\u503c\u8ba1\u7b97\u51fa\u76f8\u5e94\u7684\u56de\u6ce2\u635f\u8017\u503c\uff0c\u6216\u8005\u6839\u636e\u5df2\u77e5\u7684\u56de\u6ce2\u635f\u8017\u503c\u8ba1\u7b97\u51fa\u76f8\u5e94\u7684\u9a7b\u6ce2\u6bd4\u503c\u3002<\/p>\n\n\n\n

\u3000\u3000\u56db\u3001\u5e94\u7528\u4e3e\u4f8b<\/h2>\n\n\n\n

\u3000\u3000\u4ee5\u4e00\u4e2a\u5b9e\u9645\u5e94\u7528\u4e3a\u4f8b\uff0c\u5047\u8bbe\u6211\u4eec\u9700\u8981\u8bc4\u4f30\u4e00\u6761\u4f20\u8f93\u7ebf\u8def\u7684\u8d28\u91cf\u3002\u5df2\u77e5\u8be5\u4f20\u8f93\u7ebf\u7684\u9a7b\u6ce2\u6bd4\u4e3a2.\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u56de\u6ce2\u635f\u8017\u4e0e\u9a7b\u6ce2\u6bd4\u7684\u6362\u7b97\u5173\u7cfb\u8ba1\u7b97\u51fa\u76f8\u5e94\u7684\u56de\u6ce2\u635f\u8017\u3002<\/p>\n\n\n\n

\u3000\u3000\u6839\u636e\u6362\u7b97\u516c\u5f0f\uff1a<\/p>\n\n\n\n

\u3000\u3000\u56de\u6ce2\u635f\u8017(dB)= -20log10[(2 – 1) \/ (2 + 1)]<\/strong><\/p>\n\n\n\n

\u3000\u3000\u8ba1\u7b97\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n

\u3000\u3000\u56de\u6ce2\u635f\u8017(dB)= -20log10(1\/3) \u2248 9.54 dB<\/strong><\/p>\n\n\n\n

\u3000\u3000\u6240\u4ee5\uff0c\u8be5\u4f20\u8f93\u7ebf\u7684\u56de\u6ce2\u635f\u8017\u4e3a9.54 dB\u3002<\/p>\n\n\n\n

\u3000\u3000\u901a\u8fc7\u56de\u6ce2\u635f\u8017\u548c\u9a7b\u6ce2\u6bd4\u7684\u8ba1\u7b97\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u5168\u9762\u5730\u8bc4\u4f30\u4f20\u8f93\u7ebf\u8def\u7684\u6027\u80fd\uff0c\u5e76\u91c7\u53d6\u76f8\u5e94\u7684\u63aa\u65bd\u6765\u4f18\u5316\u4fe1\u53f7\u4f20\u8f93\u7684\u8d28\u91cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u7ed3\u8bba\uff1a<\/h2>\n\n\n\n

\u3000\u3000\u56de\u6ce2\u635f\u8017\u548c\u9a7b\u6ce2\u6bd4\u662f\u8861\u91cf\u4fe1\u53f7\u4f20\u8f93\u8d28\u91cf\u7684\u91cd\u8981\u6307\u6807\u3002\u56de\u6ce2\u635f\u8017\u53cd\u6620\u4e86\u4fe1\u53f7\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u53cd\u5c04\u7a0b\u5ea6\uff0c\u800c\u9a7b\u6ce2\u6bd4\u5219\u53cd\u6620\u4e86\u4fe1\u53f7\u5728\u4f20\u8f93\u7ebf\u4e0a\u7684\u9a7b\u6ce2\u7a0b\u5ea6\u3002\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u4e00\u5b9a\u7684\u6362\u7b97\u5173\u7cfb\uff0c\u901a\u8fc7\u6362\u7b97\u516c\u5f0f\u53ef\u4ee5\u76f8\u4e92\u8f6c\u6362\u3002\u4e86\u89e3\u548c\u638c\u63e1\u56de\u6ce2\u635f\u8017\u4e0e\u9a7b\u6ce2\u6bd4\u7684\u6982\u5ff5\u548c\u6362\u7b97\u5173\u7cfb\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u5730\u8bc4\u4f30\u548c\u4f18\u5316\u4fe1\u53f7\u4f20\u8f93\u7684\u6027\u80fd\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u5df2\u77e5\u7684\u9a7b\u6ce2\u6bd4\u8ba1\u7b97\u51fa\u56de\u6ce2\u635f\u8017\uff0c\u6216\u8005\u6839\u636e\u5df2\u77e5\u7684\u56de\u6ce2\u635f\u8017\u8ba1\u7b97\u51fa\u9a7b\u6ce2\u6bd4\uff0c\u4ece\u800c\u66f4\u597d\u5730\u4e86\u89e3\u548c\u6539\u5584\u4fe1\u53f7\u4f20\u8f93\u7684\u8d28\u91cf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5728\u4fe1\u53f7\u4f20\u8f93\u8fc7\u7a0b\u4e2d\uff0c\u56de\u6ce2\u635f\u8017\u548c\u9a7b\u6ce2\u6bd4\u662f\u4e24\u4e2a\u91cd\u8981\u7684\u6027\u80fd\u6307\u6807\u3002\u5b83\u4eec\u53cd\u6620\u4e86\u4fe1\u53f7\u5728\u4f20\u8f93\u7ebf\u4e0a\u7684\u8d28\u91cf\u548c\u5339\u914d\u5ea6\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u56de\u6ce2\u635f\u8017\u548c\u9a7b\u6ce2\u6bd4\u7684\u6982\u5ff5\uff0c\u5e76\u8be6\u7ec6\u89e3\u91ca\u5b83\u4eec\u4e4b\u95f4\u7684\u6362\u7b97\u5173\u7cfb\u3002<\/p>\n","protected":false},"author":1,"featured_media":1941,"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":[297,112],"class_list":["post-38259","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-hbsh","tag-zbb"],"_links":{"self":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/38259"}],"collection":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/comments?post=38259"}],"version-history":[{"count":0,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/posts\/38259\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media\/1941"}],"wp:attachment":[{"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/media?parent=38259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/categories?post=38259"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.viralrail.com\/wp-json\/wp\/v2\/tags?post=38259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}