{"id":4681,"date":"2021-08-06T07:58:10","date_gmt":"2021-08-05T23:58:10","guid":{"rendered":"http:\/\/www.comtest.cn\/?p=4681"},"modified":"2021-08-09T10:21:12","modified_gmt":"2021-08-09T02:21:12","slug":"%e5%b0%84%e9%a2%91%e4%bb%aa%e5%99%a8%e7%9a%84%e7%94%b5%e5%b9%b3%e5%80%bc%ef%bc%8c%e8%ae%be%e7%bd%ae%e5%80%bc%e4%b8%8e%e6%b5%8b%e9%87%8f%e5%80%bc%e4%b8%8d%e7%ac%a6%e6%80%8e%e4%b9%88%e5%8a%9e%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/www.comtest.cn\/?p=4681","title":{"rendered":"\u5c04\u9891\u4eea\u5668\u7684\u7535\u5e73\u503c\uff0c\u8bbe\u7f6e\u503c\u4e0e\u6d4b\u91cf\u503c\u4e0d\u7b26\u600e\u4e48\u529e\uff1f"},"content":{"rendered":"<p><\/p><p><strong>\u4eea\u5668\u963b\u6297<\/strong><\/p><p>\u5728\u5c04\u9891\u5fae\u6ce2\u9886\u57df\u7684\u5e94\u7528\uff0c\u901a\u5e38\u4eea\u5668\u963b\u6297\u4e3a50\u03a9\uff0c\u65e0\u8bba\u662f\u4fe1\u53f7\u6e90\u8fd8\u662f\u6d4b\u91cf\u63a5\u6536\u8bbe\u5907\uff0c\u7535\u5e73\u503c\u901a\u5e38\u9ed8\u8ba4\u5bf9\u5e94\u963b\u6297\u5339\u914d50\u03a9\u3002\u5bf9\u4e8e\u4e00\u4e9b\u4f4e\u9891\u548c\u97f3\u9891\u5e94\u7528\uff0c\u4eea\u5668\u963b\u6297\u53ef\u80fd\u662f\u4f4e\u963b\u6216\u9ad8\u963b\uff0c\u4f8b\u5982\uff0c\u97f3\u9891\u6e905\u03a9\uff0c\u97f3\u9891\u5206\u6790600\u03a9\u548c1M\u03a9\uff0c\u7535\u538b\u8868\u548c\u793a\u6ce2\u56681M\u03a9\u7b49\u7b49\uff0c\u5728\u4f4e\u9891\u6d4b\u8bd5\u65f6\uff0c\u8981\u77e5\u6653\u6240\u4f7f\u7528\u7684\u4eea\u5668\u5185\u963b\u503c\uff0c\u5fc5\u8981\u65f6\u6309\u7167\u4e32\u8054\u7535\u963b\u5206\u538b\u8ba1\u7b97\uff0c\u5426\u5219\uff0c\u4fe1\u53f7\u6e90\u7535\u5e73\u8bbe\u7f6e\u503c\u4e0e\u63a5\u6536\u6d4b\u91cf\u503c\u53ef\u80fd\u4e0d\u7b26\u3002<\/p><figure class=\"wp-block-image size-full\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev001.png\"><img fetchpriority=\"high\" decoding=\"async\" width=\"944\" height=\"563\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev001.png\" alt=\"\" class=\"wp-image-4682\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev001.png 944w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev001-300x179.png 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev001-768x458.png 768w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev001-600x358.png 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev001-64x38.png 64w\" sizes=\"(max-width: 944px) 100vw, 944px\" \/><\/a><\/figure><p><strong>\u4fe1\u53f7\u53d1\u751f\u5668\u7535\u5e73\u8bbe\u7f6e<\/strong><\/p><p>\u4fe1\u53f7\u53d1\u751f\u5668\u7684\u7535\u5e73:<\/p><p>\u25b7 Level\u9ed8\u8ba4\u8bbe\u7f6e\u662f\u8f7d\u6ce2\u4fe1\u53f7\u7684\u5e73\u5747\u6709\u6548\u529f\u7387\u3002<\/p><p>\u25b7PEP\u662f\u5cf0\u503c\u5305\u7edc\u529f\u7387\uff0c\u662f\u5728\u4fe1\u53f7\u5e45\u5ea6\u6700\u5927\u7684\u65f6\u523b\uff0c1\u4e2a\u8f7d\u6ce2\u5468\u671f\u5185\u7684RMS\u7535\u538b\uff0c\u5728\u4fe1\u53f7\u6e90\u6807\u79f0\u963b\u6297\u4e0a\u7684\u529f\u7387\u3002<\/p><p>\u25b7\u9ed8\u8ba4\u7535\u5e73\u5355\u4f4d\u662f\u529f\u7387dBm\uff0c\u53ef\u8bbe\u7f6e\u7535\u538b\u5355\u4f4ddB\u03bcV\u6216\u7ebf\u6027\u7535\u538b<\/p><p>dBm\u7684\u5b9a\u4e49\u662f10lg(P\/1mW)\u3002<\/p><p>0dBm = 107dB\u03bcV = 1mW\uff0c50\u03a9\u963b\u6297\u3002<\/p><p>dB\u03bcV\u7684\u5b9a\u4e49\u662f20lg(U\/1\u03bcV)\u3002<\/p><p>0dB\u03bcV = 1\u03bcV\u3002<\/p><p>\u25b7\u5f53\u8bbe\u7f6e\u7535\u538b\u5355\u4f4d\u65f6\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u662f\u5426\u663e\u793a\u5f00\u8def\u7535\u538b\u503cEMF\uff0cEMF\u5f00\u8def\u7535\u538b\u503c\u662f50\u03a9\u5339\u914d\u8d1f\u8f7d\u7535\u538b\u76842\u500d\uff086dB\uff09\u3002<\/p><p>\u25b7&nbsp;\u5bf9\u4e8e\u4e00\u4e9b\u7279\u5b9a\u7684\u8c03\u5236\u4fe1\u53f7\u7c7b\u578b\uff0c\u7279\u522b\u662f\u65f6\u5206TDD\u4fe1\u53f7\uff0c\u9700\u8981\u9884\u5148\u8bbe\u7f6e\u529f\u7387\u5b9a\u4e49\u6a21\u5f0f\uff0c\u4e5f\u5c31\u662f\u529f\u7387\u5b9a\u4e49\u7684\u65f6\u95f4\u8303\u56f4\u3002<\/p><p>\u25b7\u4f8b\u59825G NR\uff0cLevel\u7684\u6570\u503c\u53ef\u4ee5\u8bbe\u7f6e\u4e3a\uff1a\u603b\u7684\u5e73\u5747\u529f\u7387 \/ \u6fc0\u6d3b\u5b50\u5e27\u5185\u5e73\u5747\u529f\u7387 \/&nbsp;\u6052\u5b9a\u529f\u7387\u5bc6\u5ea6 \/ \u7a81\u53d1\u8109\u51b2\u529f\u7387\uff1a<\/p><figure class=\"wp-block-image size-full\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev002.png\"><img decoding=\"async\" width=\"644\" height=\"283\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev002.png\" alt=\"\" class=\"wp-image-4684\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev002.png 644w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev002-300x132.png 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev002-600x264.png 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev002-64x28.png 64w\" sizes=\"(max-width: 644px) 100vw, 644px\" \/><\/a><\/figure><hr class=\"wp-block-separator\"\/><p><strong>\u9891\u8c31\u4eea\u548c\u63a5\u6536\u673a\u7684\u7535\u5e73\u8bfb\u6570<\/strong><\/p><p>\u9891\u8c31\u4eea\u7684\u7535\u5e73\u6570\u503c\u53ef\u4ee5\u5728\u591a\u79cd\u529f\u80fd\u72b6\u6001\u4e0b\u83b7\u53d6\uff1a<\/p><p>\u25b7\u57fa\u7840\u9891\u8c31\u4e0a\u7684\u5149\u6807Marker\u7535\u5e73\u8bfb\u6570\uff1a\u5149\u6807\u4f4d\u7f6e\u5bf9\u5e94\u9891\u7387\u70b9\u4e00\u4e2aRBW\u4e4b\u5185\u7684\u529f\u7387\u503c\u3002<\/p><p>\u25b7\u9891\u8c31\u4e0a\u7684\u566a\u58f0\u5149\u6807Noise Marker\u7535\u5e73\u8bfb\u6570\uff1a\u5149\u6807\u4f4d\u7f6e\u5bf9\u5e94\u9891\u7387\u70b9\u5de6\u53f3\u51e0\u4e2a\u9891\u70b9\u529f\u7387\u5e73\u5747\u503c\u5f52\u4e00\u5316\u52301Hz\u7684\u529f\u7387\u8c31\u5bc6\u5ea6\u3002<\/p><p>\u25b7\u4fe1\u9053\u529f\u7387\u8bfb\u6570\uff1a\u68c0\u6ce2\u5668\u5fc5\u987bRMS\uff0c\u4fe1\u9053\u529f\u7387\u662f\u4fe1\u9053\u5e26\u5bbd\u4e4b\u5185\uff0c\u4fe1\u53f7\u7684\u5e73\u5747\u529f\u7387\u503c\uff1b\u901a\u8fc7Trigger &#8211; Gate\u8bbe\u7f6e\uff0c\u6d4b\u91cf\u7a81\u53d1\u8109\u51b2\u5185\u7684\u5e73\u5747\u529f\u7387\u3002<\/p><p>\u25b7\u65f6\u57df\u529f\u7387\u8bfb\u6570\uff1a\u5efa\u8bae\u91c7\u6837\u503c\u68c0\u6ce2\u5668\uff0cRMS\u5bf9\u5e94\u6d4b\u91cf\u65f6\u95f4\u5185\u7684\u603b\u5e73\u5747\u529f\u7387\uff0cpeak\u503c\u5bf9\u5e94\u6d4b\u91cf\u65f6\u95f4\u5185\u7684PEP\u5cf0\u503c\u5305\u7edc\u529f\u7387\u503c\u3002<\/p><p>\u25b7\u4fe1\u53f7\u7edf\u8ba1\u8bfb\u6570\uff1a\u5e73\u5747\u529f\u7387\uff0cPEP\u5cf0\u503c\u5305\u7edc\u529f\u7387\u503c\u548c\u5cf0\u5747\u6bd4\uff1b\u53ef\u4ee5\u8bbe\u7f6eTrigger &#8211; gate\uff0c\u7edf\u8ba1\u7a81\u53d1\u8109\u51b2\u5185\u7684\u529f\u7387\u3002<\/p><p>\u25b7\u4fe1\u53f7\u89e3\u8c03\u529f\u80fd\u9009\u4ef6\u4e2d\u7684\u529f\u7387\u8bfb\u6570\uff1a\u9ed8\u8ba4\u8868\u793a\u5bf9\u5e94\u4e0a\u4e0b\u884c\u8109\u51b2\u5185\u7684\u5e73\u5747\u529f\u7387\u3002<\/p><p>\u9891\u8c31\u4eea\u63a5\u6536\u673a\u7684\u7535\u5e73\u5355\u4f4d\uff1a<\/p><p>\u25b7\u9891\u8c31\u4eea\u548c\u6d4b\u91cf\u63a5\u6536\u673a\u9ed8\u8ba4\u7535\u5e73\u5355\u4f4d\u662f\u529f\u7387dBm\uff0c\u53ef\u8bbe\u7f6e\u5176\u5b83\u5982\u7535\u538b\u5355\u4f4ddB\u03bcV\u6216\u7ebf\u6027\u7535\u538bV\uff0c\u7535\u6d41\u5355\u4f4ddB\u03bcA\u6216\u7ebf\u6027\u7535\u6d41A\u7b49\u3002<\/p><p>\u25b7\u529f\u7387\u8c31\u5bc6\u5ea6\u7684\u5355\u4f4ddBm\/Hz\u3002<\/p><p>\u25b7EMI\u63a5\u6536\u673a\u9ed8\u8ba4\u7535\u5e73\u5355\u4f4d\u662f\u7535\u538b\uff0c\u4e5f\u53ef\u8bbe\u7f6e\u4e3a\u529f\u7387\u6216\u7535\u6d41\u5355\u4f4d\u3002<\/p><p>\u25b7\u9891\u8c31\u4eea\u548c\u63a5\u6536\u673a\u5185\u7f6e\u8f6c\u6362\u56e0\u5b50\u529f\u80fd\uff0c\u4f8b\u5982\u6fc0\u6d3b\u5929\u7ebf\u56e0\u5b50\uff0c\u7535\u5e73\u503c\u663e\u793a\u4e3a\u573a\u5f3adB\u03bcV\/m\u3002<\/p><figure class=\"wp-block-image size-full\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev003.png\"><img decoding=\"async\" width=\"644\" height=\"290\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev003.png\" alt=\"\" class=\"wp-image-4685\" srcset=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev003.png 644w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev003-300x135.png 300w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev003-600x270.png 600w, http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/08\/rflev003-64x29.png 64w\" sizes=\"(max-width: 644px) 100vw, 644px\" \/><\/a><\/figure><p><strong>\u529f\u7387\u8ba1\u7684\u7535\u5e73\u8bfb\u6570<\/strong><\/p><p>\u529f\u7387\u8ba1\u663e\u793a\u7684\u7535\u5e73\u503c\u662f\u4fe1\u53f7\u572850\u03a9\u7535\u963b\u4e0a\u7684\u529f\u7387\u503c\uff0c\u9ed8\u8ba4\u5355\u4f4ddBm\u6216\u7ebf\u6027\u529f\u7387W\uff0c\u4e00\u822c\u53ef\u4ee5\u81ea\u52a8\u8ba1\u7b97\u663e\u793a\u7535\u538bdB\u03bcV\u6216\u7ebf\u6027\u7535\u538bV\u3002\u529f\u7387\u8ba1\u7684\u529f\u7387\u7535\u5e73\u6d4b\u91cf\u503c\uff0c\u5bf9\u5e94\u5176\u5de5\u4f5c\u9891\u7387\u8303\u56f4\u5185\u6240\u6709\u4fe1\u53f7\u603b\u529f\u7387\u3002<\/p><p>\u529f\u7387\u4f20\u611f\u5668\u5206\u4e3a\u70ed\u7535\u4f20\u611f\u5668\u548c\u4e8c\u6781\u7ba1\u4f20\u611f\u5668\u6280\u672f\uff0c\u4e8c\u6781\u7ba1\u4f20\u611f\u5668\u53c8\u5212\u5206\u4e3a\u901a\u7528\u578b\u548c\u5bbd\u5e26\u578b\uff0c\u6240\u6709\u7684\u4f20\u611f\u5668\u90fd\u9002\u7528\u4e8e\u8fde\u7eed\u5e73\u5747\u529f\u7387\u6d4b\u91cf\uff0c\u901a\u7528\u578b\u4f20\u611f\u5668\u53e6\u5916\u53ef\u4ee5\u5206\u6790\u65f6\u5206TDD\u4fe1\u53f7\u7684\u65f6\u9699\u5185\u529f\u7387\uff0c\u5bbd\u5e26\u578b\u4f20\u611f\u5668\u53ef\u4ee5\u5206\u6790\u8109\u51b2\u66f2\u7ebf\u53c2\u6570\u548c\u4fe1\u53f7\u7edf\u8ba1\u5206\u6790(APD\u548cCCDF)\u3002<\/p><p>\u25b7\u8fde\u7eed\u5e73\u5747\u529f\u7387\uff1a\u6d4b\u91cf\u5de5\u4f5c\u9891\u7387\u8303\u56f4\u5185\u7684\u5e73\u5747\u529f\u7387\u3002<\/p><p>\u25b7&nbsp;\u65f6\u9699\u529f\u7387\uff1aTDD\u4fe1\u53f7\u6bcf\u4e2a\u7a81\u53d1\u8109\u51b2\u5185\u7684\u5e73\u5747\u529f\u7387\u3002<\/p><p>\u25b7\u8109\u51b2\u529f\u7387\u66f2\u7ebf\u5206\u6790\uff1a\u8109\u51b2\u5305\u7edc\u6ce2\u5f62\u4fe1\u53f7\uff0c\u6d4b\u91cf\u663e\u793a\u4fe1\u53f7\u7684\u77ac\u65f6\u5cf0\u503c\u5305\u7edc\u529f\u7387\u548c\u5e73\u5747\u529f\u7387\uff0c\u8fd8\u6709\u8109\u5bbd\u5468\u671f\u7b49\u65f6\u95f4\u53c2\u6570\u3002<\/p><p>\u25b7\u4fe1\u53f7\u7edf\u8ba1\u5206\u6790\uff1a\u5e73\u5747\u529f\u7387\uff0cPEP\u5cf0\u503c\u5305\u7edc\u529f\u7387\u503c\u548c\u5cf0\u5747\u6bd4\u3002<\/p><p><\/p><p><strong>\u793a\u6ce2\u5668\u7684\u7535\u5e73\u8bfb\u6570<\/strong><\/p><p>\u793a\u6ce2\u5668\u7eb5\u8f74\u663e\u793a\u4fe1\u53f7\u6ce2\u5f62\u7684\u5e45\u5ea6\uff0c\u9ed8\u8ba4\u663e\u793a\u4fe1\u53f7\u5728\u793a\u6ce2\u5668\u5185\u963b\u4e0a\u7684\u7535\u538b\u503c\u3002\u793a\u6ce2\u5668\u5185\u963b\u670950\u03a9\u548c1M\u03a9\u9009\u62e9\uff0c1M\u03a9\u53ea\u80fd\u5de5\u4f5c\u5728\u51e0\u767eMHz\u9891\u7387\u8f83\u4f4e\u7684\u8303\u56f4\u3002\u5728\u9ad8\u6027\u80fd\u793a\u6ce2\u5668\u5982R&amp;S 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