{"id":98537,"date":"2024-10-28T09:16:16","date_gmt":"2024-10-28T01:16:16","guid":{"rendered":"\/\/www.dealsbon.com\/?p=98537"},"modified":"2024-10-28T09:16:29","modified_gmt":"2024-10-28T01:16:29","slug":"gtxdcsbzjs","status":"publish","type":"post","link":"\/\/www.dealsbon.com\/blog\/98537.html","title":{"rendered":"4G\u5929\u7ebf\u7684\u53c2\u6570\u6807\u51c6\u4ecb\u7ecd"},"content":{"rendered":"\n
\u3000\u30004G\u5929\u7ebf\u7684\u53c2\u6570\u6807\u51c6<\/strong>\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n \u3000\u3000\u8fd9\u4e9b\u53c2\u6570\u6807\u51c6\u786e\u4fdd\u4e864G\u5929\u7ebf\u5728\u4e0d\u540c\u5e94\u7528\u573a\u666f\u4e2d\u7684\u6027\u80fd\u548c\u517c\u5bb9\u6027\uff0c\u4ece\u800c\u5b9e\u73b0\u7a33\u5b9a\u548c\u9ad8\u901f\u7684\u65e0\u7ebf\u901a\u4fe1\u8d28\u91cf\u3002<\/p>\n\n\n\n \u3000\u30004G\u5929\u7ebf\u7684\u9891\u7387\u8303\u56f4\u5728\u6700\u65b0\u7684\u6807\u51c6\u548c\u66f4\u65b0\u4e2d\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u9891\u6bb5\uff1a<\/p>\n\n\n\n \u3000\u3000\u8fd9\u4e9b\u9891\u6bb5\u662f\u76ee\u524d4G\u7f51\u7edc\u4e2d\u5e38\u89c1\u7684\u4f7f\u7528\u9891\u7387\uff0c\u5b83\u4eec\u5728\u4e0d\u540c\u7684\u56fd\u5bb6\u548c\u5730\u533a\u53ef\u80fd\u4f1a\u6709\u4e0d\u540c\u7684\u5206\u914d\u548c\u4f7f\u7528\u60c5\u51b5\u3002<\/p>\n\n\n\n \u3000\u3000\u7535\u538b\u9a7b\u6ce2\u6bd4(VSWR)\u57284G\u5929\u7ebf\u8bbe\u8ba1\u4e2d\u5177\u6709\u6781\u5176\u91cd\u8981\u7684\u610f\u4e49\uff0c\u5b83\u76f4\u63a5\u5f71\u54cd\u5929\u7ebf\u7684\u6027\u80fd\u548c\u901a\u4fe1\u7cfb\u7edf\u7684\u6548\u7387\u3002VSWR\u5b9a\u4e49\u4e3a\u5c04\u9891(RF)\u7535\u6c14\u4f20\u8f93\u7cfb\u7edf\u4e2d\u53d1\u5c04\u548c\u53cd\u5c04\u7535\u538b\u9a7b\u6ce2\u4e4b\u95f4\u7684\u6bd4\u503c\uff0c\u662f\u8861\u91cfRF\u529f\u7387\u4ece\u7535\u6e90\u901a\u8fc7\u4f20\u8f93\u7ebf\u4f20\u8f93\u5230\u8d1f\u8f7d\u7684\u6548\u7387\u7684\u6307\u6807\u3002<\/p>\n\n\n\n \u3000\u3000\u7406\u60f3\u7684\u5929\u7ebf\u548c\u9988\u7ebf\u963b\u6297\u5339\u914d\u60c5\u51b5\u4e0b\uff0cVSWR\u4e3a1:1.\u8fd9\u610f\u5473\u7740\u6ca1\u6709\u4fe1\u53f7\u53cd\u5c04\uff0c\u6240\u6709\u8f93\u5165\u4fe1\u53f7\u90fd\u88ab\u5929\u7ebf\u5438\u6536\u5e76\u8f90\u5c04\u51fa\u53bb\u3002\u7136\u800c\uff0c\u5f53VSWR\u503c\u5927\u4e8e1\u65f6\uff0c\u8868\u793a\u5b58\u5728\u963b\u6297\u4e0d\u5339\u914d\uff0c\u90e8\u5206\u8f93\u5165\u4fe1\u53f7\u4f1a\u88ab\u53cd\u5c04\u56de\u53d1\u5c04\u673a\uff0c\u5bfc\u81f4\u80fd\u91cf\u635f\u5931\u548c\u6548\u7387\u964d\u4f4e\u3002\u4f8b\u5982\uff0c\u5f53VSWR\u4e3a2:1\u65f6\uff0c\u4f1a\u670950%\u7684\u4fe1\u53f7\u88ab\u53cd\u5c04;\u82e5VSWR\u4e3a3:1.\u5219\u670983.3%\u7684\u4fe1\u53f7\u88ab\u53cd\u5c04\u3002<\/p>\n\n\n\n \u3000\u3000VSWR\u5bf9\u5929\u7ebf\u6027\u80fd\u7684\u5f71\u54cd\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n \u3000\u3000\u56e0\u6b64\uff0c\u57284G\u5929\u7ebf\u8bbe\u8ba1\u4e2d\uff0c\u4f18\u5316VSWR\u662f\u975e\u5e38\u5173\u952e\u7684\u3002\u901a\u8fc7\u786e\u4fdd\u5929\u7ebf\u548c\u9988\u7ebf\u7684\u963b\u6297\u5339\u914d\uff0c\u53ef\u4ee5\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u53cd\u5c04\u6ce2\uff0c\u63d0\u9ad8\u4f20\u8f93\u6548\u7387\u548c\u901a\u4fe1\u8d28\u91cf\u3002<\/p>\n\n\n\n \u3000\u3000\u4e0d\u540c\u589e\u76ca\u503c\u76844G\u5929\u7ebf\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u8868\u73b0\u5dee\u5f02\u4e3b\u8981\u4f53\u73b0\u5728\u4fe1\u53f7\u8986\u76d6\u8303\u56f4\u3001\u901a\u4fe1\u8d28\u91cf\u548c\u6548\u7387\u7b49\u65b9\u9762\u3002\u589e\u76ca\u662f\u5929\u7ebf\u6027\u80fd\u7684\u91cd\u8981\u53c2\u6570\u4e4b\u4e00\uff0c\u5b83\u51b3\u5b9a\u4e86\u5929\u7ebf\u5728\u7279\u5b9a\u65b9\u5411\u4e0a\u7684\u8f90\u5c04\u5f3a\u5ea6\u548c\u4fe1\u53f7\u4f20\u8f93\u80fd\u529b\u3002<\/p>\n\n\n\n \u3000\u3000\u4ece\u4f4e\u9891\u5de5\u4f5c\u9891\u6bb5(640 MHz~990 MHz)\u548c\u9ad8\u9891\u5de5\u4f5c\u9891\u6bb5(1.61 GHz~3.15 GHz)\u7684\u5b9e\u6d4b\u6570\u636e\u6765\u770b\uff0c\u589e\u76ca\u7684\u53d8\u5316\u8303\u56f4\u5206\u522b\u4e3a1.05 dBi\u52301.87 dBi\u548c2.32 dBi\u52303.74 dBi\uff0c\u8f90\u5c04\u6548\u7387\u5747\u5927\u4e8e50%\u3002\u8fd9\u8868\u660e\u5728\u4e0d\u540c\u7684\u9891\u6bb5\u4e0b\uff0c\u5929\u7ebf\u7684\u589e\u76ca\u548c\u6548\u7387\u80fd\u591f\u6ee1\u8db3\u4e00\u822c\u624b\u673a\u5929\u7ebf\u8bbe\u8ba1\u6307\u6807\u8981\u6c42\uff0c\u4ece\u800c\u4fdd\u8bc1\u4e86\u4fe1\u53f7\u7684\u6709\u6548\u4f20\u8f93\u548c\u63a5\u6536\u3002<\/p>\n\n\n\n \u3000\u3000\u5177\u4f53\u5230\u4e0d\u540c\u9891\u6bb5\u7684\u589e\u76ca\u53d8\u5316\uff0c\u4f8b\u5982\u5728\u7b2c\u4e00\u9891\u6bb5\u4e2d\uff0c\u589e\u76ca\u4ece1.024 dBi\u53d8\u5316\u52302.53 dBi\uff0c\u800c\u5728\u7b2c\u4e8c\u9891\u6bb5\u4e2d\uff0c\u589e\u76ca\u4ece4.035 dBi\u6e10\u53d8\u52304.39 dBi\uff0c\u8f90\u5c04\u6548\u7387\u4e5f\u4ece60.31%\u63d0\u9ad8\u523075.64%\u3002\u8fd9\u4e9b\u6570\u636e\u8868\u660e\uff0c\u968f\u7740\u589e\u76ca\u7684\u589e\u52a0\uff0c\u5929\u7ebf\u7684\u8f90\u5c04\u6548\u7387\u4e5f\u5728\u63d0\u9ad8\uff0c\u4ece\u800c\u63d0\u5347\u4e86\u4fe1\u53f7\u7684\u8986\u76d6\u8303\u56f4\u548c\u901a\u4fe1\u8d28\u91cf\u3002<\/p>\n\n\n\n \u3000\u3000\u6b64\u5916\uff0c\u5929\u7ebf\u589e\u76ca\u8fd8\u4e0e\u7aef\u53e3\u963b\u6297\u5339\u914d\u3001\u5929\u7ebf\u53e3\u9762\u5c3a\u5bf8\u548c\u7535\u6d41\u5206\u5e03\u7b49\u56e0\u7d20\u6709\u5173\u3002\u589e\u76ca\u7684\u5355\u4f4d\u6709dBi\u548cdBd\uff0c\u5176\u4e2ddBi\u662f\u76f8\u5bf9\u4e8e\u70b9\u6e90\u5929\u7ebf\u7684\u589e\u76ca\uff0c\u800cdBd\u662f\u76f8\u5bf9\u4e8e\u5bf9\u79f0\u9635\u5b50\u5929\u7ebf\u7684\u589e\u76ca\u3002\u57fa\u7ad9\u5168\u5411\u5929\u7ebf\u7684\u589e\u76ca\u901a\u5e38\u4e3a11.5dBi\uff0c\u5b9a\u5411\u5929\u7ebf\u7684\u589e\u76ca\u5219\u4e3a18.7dBi\u3002\u8fd9\u610f\u5473\u7740\u5728\u57fa\u7ad9\u9009\u62e9\u65f6\uff0c\u589e\u76ca\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u8003\u8651\u56e0\u7d20\uff0c\u56e0\u4e3a\u5b83\u76f4\u63a5\u5f71\u54cd\u5230\u79fb\u52a8\u8702\u7a9d\u901a\u4fe1\u8fb9\u7f18\u4fe1\u53f7\u7684\u7535\u5e73\u5f3a\u5f31\u7a0b\u5ea6\uff0c\u8fdb\u800c\u5f71\u54cd\u7cfb\u7edf\u7684\u8fd0\u884c\u8d28\u91cf\u3002<\/p>\n\n\n\n \u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4f8b\u5982Massive MIMO\u7cfb\u7edf\u4e2d\uff0c\u5929\u7ebf\u914d\u7f6e\u65b9\u6848\u7684\u6027\u80fd\u4f1a\u53d7\u5230\u4fe1\u9053\u589e\u76ca\u5dee\u5f02\u7684\u5f71\u54cd\u3002\u5f53\u4fe1\u9053\u589e\u76ca\u5dee\u5f02\u8f83\u5927\u65f6\uff0c\u6240\u6709\u529f\u7387\u90fd\u96c6\u4e2d\u5728\u6027\u80fd\u66f4\u597d\u7684\u5929\u7ebf\u4e0a\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u6574\u4f53\u6027\u80fd\u3002\u7136\u800c\uff0c\u5927\u91cfMIMO\u5929\u7ebf\u9694\u79bb\u4f1a\u964d\u4f4ePD\u65b9\u6848\u7684\u6027\u80fd\uff0c\u4ec5\u80fd\u8fbe\u52300.3 dB\u7684\u4e2d\u4f4d\u6570\u589e\u76ca\u3002<\/p>\n\n\n\n \u3000\u3000\u4e0d\u540c\u589e\u76ca\u503c\u76844G\u5929\u7ebf\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u8868\u73b0\u5dee\u5f02\u663e\u8457\u3002\u9ad8\u589e\u76ca\u5929\u7ebf\u901a\u5e38\u5177\u6709\u66f4\u597d\u7684\u4fe1\u53f7\u8986\u76d6\u8303\u56f4\u548c\u901a\u4fe1\u8d28\u91cf\uff0c\u9002\u7528\u4e8e\u9700\u8981\u9ad8\u4fe1\u53f7\u5f3a\u5ea6\u7684\u5e94\u7528\u573a\u666f\u3002\u800c\u4f4e\u589e\u76ca\u5929\u7ebf\u5219\u53ef\u80fd\u66f4\u9002\u5408\u4e8e\u8986\u76d6\u8303\u56f4\u8f83\u5c0f\u6216\u4fe1\u53f7\u8981\u6c42\u4e0d\u9ad8\u7684\u73af\u5883\u3002<\/p>\n\n\n\n \u3000\u30004G\u5929\u7ebf\u7684\u963b\u6297\u5339\u914d\u6280\u672f\u5728\u8fd1\u5e74\u6765\u6709\u4e86\u4e00\u4e9b\u65b0\u7684\u8fdb\u5c55\u3002\u9996\u5148\uff0c\u901a\u8fc7\u5f15\u5165\u975e\u89c4\u5219\u5012L\u578b\u69fd\u548c\u9988\u7535\u5df4\u4f26\u6280\u672f\uff0c\u53ef\u4ee5\u6539\u5584\u5929\u7ebf\u7684\u963b\u6297\u5339\u914d\u6027\u80fd\uff0c\u8fd9\u5728\u5bbd\u5e26\u9ad8\u9694\u79bb\u5ea6\u57fa\u7ad9\u5929\u7ebf\u8bbe\u8ba1\u4e2d\u5f97\u5230\u4e86\u5e94\u7528\u3002\u6b64\u5916\uff0c\u5bf9\u4e8e\u591a\u9891\u5929\u7ebf\uff0c\u5339\u914d\u7535\u8def\u7684\u8bbe\u8ba1\u53d8\u5f97\u66f4\u52a0\u590d\u6742\uff0c\u9700\u8981\u5728\u5c04\u9891\u524d\u7aef\u9884\u7559T\u578b\u6216\u03c0\u578b\u7f51\u7edc\u4ee5\u5b9e\u73b0\u826f\u597d\u7684\u963b\u6297\u5339\u914d\u6548\u679c\u3002<\/p>\n\n\n\n \u3000\u3000\u5728\u5177\u4f53\u7684\u8bbe\u8ba1\u65b9\u6cd5\u4e0a\uff0c\u6709\u7814\u7a76\u63a8\u8350\u4f7f\u7528\u03c0\u578b\u5339\u914d\u7535\u8def\uff0c\u5e76\u5f3a\u8c03PCB\u7684\u7ebf\u5bbd\u3001\u7ed3\u6784\u548c\u8d70\u7ebf\u65b9\u5f0f\u5bf9\u5c04\u9891\u963b\u6297\u7684\u5f71\u54cd\uff0c\u9700\u8981\u7279\u522b\u6ce8\u610f\u8fd9\u4e9b\u56e0\u7d20\u4ee5\u786e\u4fdd\u963b\u6297\u5339\u914d\u3002\u53e6\u5916\uff0c\u4e00\u4e9b\u8bbe\u8ba1\u8fd8\u91c7\u7528\u4e86\u5207\u6bd4\u96ea\u592b\u963b\u6297\u53d8\u6362\u5668\u6765\u63d0\u9ad8\u5668\u4ef6\u7684\u5339\u914d\u7279\u6027\uff0c\u901a\u8fc7\u4f7f\u7528\u4f4e\u4ecb\u7535\u5e38\u6570\u6750\u6599\u5982\u6ed1\u77f3\u74f7\u6765\u589e\u5927\u5339\u914d\u5c3a\u5bf8\uff0c\u4ece\u800c\u4fbf\u4e8e\u52a0\u5de5\u548c\u88c5\u914d\u3002<\/p>\n\n\n\n \u3000\u3000\u6b64\u5916\uff0c\u8fd8\u6709\u7814\u7a76\u901a\u8fc7\u8c03\u6574\u5929\u7ebf\u7ed3\u6784\u53c2\u6570(\u5982\u69fd\u7684\u957f\u5ea6\u548c\u5bbd\u5ea6)\u6765\u4f18\u5316\u963b\u6297\u5339\u914d\u6761\u4ef6\uff0c\u4f8b\u5982\u5728\u5355\u6781\u5929\u7ebf\u4e2d\u5f15\u5165\u77e9\u5f62\u69fd\u4ee5\u6539\u5584\u963b\u6297\u5339\u914d\u6027\u80fd\uff0c\u5e76\u901a\u8fc7\u4eff\u771f\u8f6f\u4ef6\u8fdb\u884c\u4f18\u5316\u4ee5\u786e\u4fdd\u8bbe\u8ba1\u4e0e\u5b9e\u9645\u5c3d\u53ef\u80fd\u543b\u5408\u3002<\/p>\n\n\n\n \u3000\u3000\u9ad8\u65484G\u5929\u7ebf\u7684\u8bbe\u8ba1\u539f\u7406\u548c\u5b9e\u73b0\u65b9\u6cd5\u6d89\u53ca\u591a\u4e2a\u65b9\u9762\uff0c\u5305\u62ec\u9891\u7387\u8303\u56f4\u3001\u589e\u76ca\u3001\u65b9\u5411\u6027\u3001\u6548\u7387\u3001\u5e26\u5bbd\u3001\u6781\u5316\u7279\u6027\u7b49\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u8bbe\u8ba1\u539f\u7406\u548c\u5b9e\u73b0\u65b9\u6cd5\uff1a<\/p>\n\n\n\n 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