{"id":20096,"date":"2022-01-27T09:30:48","date_gmt":"2022-01-27T01:30:48","guid":{"rendered":"https:\/\/www.paiqinano.com\/?p=20096"},"modified":"2022-01-18T14:34:39","modified_gmt":"2022-01-18T06:34:39","slug":"%e8%be%83%e4%bd%8epim-pcb%e5%a4%a9%e7%ba%bf%e6%80%8e%e4%b9%88%e9%80%89%e6%8b%a9%e5%90%88%e9%80%82%e9%98%b2%e6%b0%b4%e7%94%b5%e8%b7%af%e6%9d%bf%e6%9d%90%e6%96%99%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.paiqinano.com\/?p=20096","title":{"rendered":"\u8f83\u4f4ePIM PCB\u5929\u7ebf\u600e\u4e48\u9009\u62e9\u5408\u9002\u9632\u6c34\u7535\u8def\u677f\u6750\u6599\uff1f"},"content":{"rendered":"

\n\t\u867d\u7136\u65e0\u7ebf\u5929\u7ebf\u5177\u5907\u4e0d\u4e00\u6837\u7684\u5f62\u6001\u548c\u89c4\u683c\uff0c\u4f46\u5370\u5237\u7ebf\u8def\u677f<\/u>(PCB<\/u>)\u65e0\u7ebf\u5929\u7ebf\u65b9\u5f0f\u4ecd\u53ef\u4ee5\u5728\u6bd4\u8f83\u5927\u6c34\u5e73\u51cf\u5c11\u89c4\u683c\u7684\u60c5\u5f62\u4e0b\u7ef4\u6301\u7279\u6027\u4e0d\u4ea7\u751f\u53d8\u5316\u3002\u81ea\u7136\uff0c\u65e0\u7ebf\u5929\u7ebf(\u5305\u542b\u6839\u636ePCB\u7684\u65e0\u7ebf\u5929\u7ebf)\u52a1\u5fc5\u5728\u5236\u5b9a\u548c\u751f\u4ea7\u52a0\u5de5\u65f6\u4fdd\u8bc1\u5176\u5177\u5907\u6700\u5c11\u7684\u5fae\u6ce2\u611f\u5e94\u5668\u4e92\u8c03(PI<\/u>M)\u6307\u6807\u503c\uff0c\u624d\u53ef\u4ee5\u5728\u5982\u4eca\u62e5\u5835\u7684\u6570\u636e\u4fe1\u53f7\u81ea\u7136\u73af\u5883\u4e2d\u5145\u5206\u53d1\u6325\u5176\u6700\u597d\u7279\u6027\u3002<\/p>\n

\n\t\u9488\u5bf9PCB\u65e0\u7ebf\u5929\u7ebf\uff0c\u867d\u7136\u4f4ePIM\u6307\u6807\u503c\u5173\u952e\u4e0e\u5929\u7ebf\u8bbe\u8ba1\u6709\u5173\uff0c\u4f46\u7ebf\u8def\u677f<\/u>\u539f\u6750\u6599\u5bf9PCB\u65e0\u7ebf\u5929\u7ebf\u7684\u603b\u4f53PIM\u6027\u4e5f\u662f\u6709\u8f83\u5927\u5371\u5bb3\uff0c\u56e0\u6b64\u4f4ePIM\u65e0\u7ebf\u5929\u7ebf\u4e5f\u5fc5\u987b\u8003\u8651\u5230\u5982\u4f55\u6311\u9009RF<\/u>\/\u5fae\u6ce2\u52a0\u70ed\u7535\u6e90\u7535\u8def\u539f\u6750\u6599\u3002<\/p>\n

\n\tPIM\u662f\u4e00\u79cd\u975e\u7ebf\u6027\u7684\u7c7b\u4e8c\u6781\u7ba1<\/u>\u6548\u7528\uff0c\u5f532\u4e2a\u6216\u597d\u51e0\u4e2a\u6570\u636e\u4fe1\u53f7\u6df7\u6742\u65f6(\u6bd4\u5982\u6765\u6e90\u4e8e\u4e0d\u4e00\u6837\u7684\u8c03\u9891\u53d1\u5c04\u673a)\uff0c\u4fbf\u4f1a\u9020\u6210\u591a\u4f59\u7684\u8c10\u6ce2\u7535\u6d41\u6570\u636e\u4fe1\u53f7\u3002\u5f53\u8fd9\u79cd\u9644\u52a0\u9020\u6210\u7684\u8c10\u6ce2\u7535\u6d41\u6570\u636e\u4fe1\u53f7\u5177\u5907\u5145\u8db3\u9ad8\u7684\u8109\u51b2\u4fe1\u53f7\uff0c\u800c\u4e14\u843d\u5728\u63a5\u6536\u5668\u7684\u53ef\u63a5\u53d7\u5de5\u4f5c\u9891\u7387\u533a\u57df\u5185\u65f6\uff0c\u90a3\u9ebc\uff0c\u5c31\u6709\u53ef\u80fd\u4f1a\u9020\u6210\u95ee\u9898\uff0c\u5f71\u54cd\u63a5\u6536\u5668\u5e26\u5185\u6570\u636e\u4fe1\u53f7\u7684\u63a5\u53d7\u4e00\u5207\u6b63\u5e38\u3002\u5c3d\u7ba1PIM\u4e0d\u5bb9\u6613\u5bf9\u6bcf\u4e00\u79cd\u8fd0\u7528\u90fd\u9020\u6210\u5371\u5bb3\uff0c\u4f46\u5374\u5f88\u6709\u53ef\u80fd\u5f71\u54cd\u65e0\u7ebf\u901a\u4fe1<\/u>\u7cfb\u7edf\u8f6f\u4ef6\u7684\u5e38\u89c4\u5de5\u4f5c\u4e2d\uff0c\u5c24\u5176\u662f\u5728\u5176\u5c1d\u8bd5\u63a5\u53d7\u8f83\u4f4e\u7535\u9891\u6570\u636e\u4fe1\u53f7\u65f6\u3002<\/p>\n

\n\tPIM\u53ef\u4ee5\u51fa\u73b0\u5728\u4e00\u5207\u4e8c\u79cd\u4e0d\u4e00\u6837\u91d1\u5c5e\u6750\u6599\u7684\u8fde\u63a5\u529f\u80fd\u6216\u63d2\u53e3<\/u>\u5904\uff0c\u6bd4\u5982\u5c04\u9891\u8fde\u63a5\u5668<\/u>\u548c\u7535\u7f06\u7ebf<\/u>\u90e8\u4ef6\u7684\u76f8\u63a5\u5904\uff0c\u65e0\u7ebf\u5929\u7ebf\u548c\u65e0\u7ebf\u5929\u7ebf\u9988\u6e90\u7684\u76f8\u63a5\u5904\u3002\u63a5\u89e6\u4e0d\u826f\u73b0\u8c61\u7684\u5c04\u9891\u8fde\u63a5\u5668\uff0c\u5167\u90e8\u9508\u8680\u6216\u7a7a\u6c14\u6c27\u5316<\/u>\u7684\u5c04\u9891\u8fde\u63a5\u5668\u4e5f\u6709\u53ef\u80fd\u4f1a\u9020\u6210PIM\u3002PCB\u539f\u6750\u6599\u4e5f\u53ef\u80fd\u662fPIM\u7684\u6765\u6e90\u4e8e\uff0c\u5b83\u5f88\u6709\u53ef\u80fd\u6765\u81ea\u4e8e\u539f\u6750\u6599\u81ea\u8eab\uff0c\u4e5f\u5f88\u6709\u53ef\u80fd\u6765\u6e90\u4e8e\u9988\u7535\u70b9\u3002\u56e0\u800c\uff0c\u6839\u636e\u638c\u63e1\u4e0d\u4e00\u6837\u7684\u7535\u6e90\u7535\u8def<\/u>\u677f\u539f\u6750\u6599\u7684\u4e3b\u8981\u53c2\u6570\u4e0ePIM\u5173\u7cfb\uff0c\u5c06\u6709\u5229\u4e8e\u6311\u9009\u9002\u5b9c\u7684\u539f\u6750\u6599\uff0c\u800c\u4e0d\u81f4\u5bfc\u81f4PCB\u65e0\u7ebf\u5929\u7ebf\u7684PIM\u7279\u6027\u95ee\u9898\u3002<\/p>\n

\n\tPCB\u65e0\u7ebf\u5929\u7ebf<\/p>\n

\n\t\u4ee5PCB\u65b9\u5f0f\u8bbe\u8ba1\u65b9\u6848\u7684\u9ad8\u9891\u7387\u65e0\u7ebf\u5929\u7ebf\u53ef\u4ee5\u6709\u5404\u79cd\u4e0d\u540c\u6784\u9020\uff0c\u4ece\u7b80\u6613\u7684\u5076\u6781\u5b50\uff0c\u5230\u6839\u636e\u5706\u5f62\u8c10\u632f\u5668\u548c\u7f57\u7279\u66fc\u955c\u7247\u7684\u9519\u7efc\u590d\u6742\u7684\u6784\u9020\u3002\u5728\u5176\u4e2d\u4e00\u79cd\u8f83\u4e3a\u706b\u7206\u7684PCB\u65e0\u7ebf\u5929\u7ebf\u4fbf\u662f\u8d34\u7247\u5929\u7ebf\u8d34\u7247\u5929\u7ebf\uff0c\u5b83\u53ef\u4ee5\u5728\u7ed9\u51fa\u7684\u5de5\u4f5c\u9891\u7387\u533a\u57df\u5185\u8bbe\u8ba1\u65b9\u6848\u51fa\u7b80\u6613\u7d27\u5bc6\u7684\u65e0\u7ebf\u5929\u7ebf\u6784\u7ed3(\u5982\u4e0b\u56fe1)\u3002\u5f88\u591a\u5546\u54c1\u8fd0\u7528\u597d\u51e0\u4e2aPCB\u8d34\u7247\u5929\u7ebf\u6216\u4e32\u8054\u8c10\u632f\u6784\u9020\uff0c\u6765\u5b8c\u6210\u6ce2\u675f\u6210\u5f62\u4e92\u8054\u7f51(BFN)\u6216\u76f8\u63a7\u9635\u5929\u7ebf\uff0c\u5e76\u6839\u636e\u7535\u8c03<\/u>\u65b9\u6cd5\u6765\u64cd\u7eb5\u96f7\u8fbe\u63a2\u6d4b\u6216\u901a\u4fe1\u7cfb\u7edf\u4e2dPCB\u65e0\u7ebf\u5929\u7ebf\u7684\u9707\u5e45\uff0c\u76f8\u4f4d\u5dee\u548c\u65b9\u4f4d\u3002<\/p>\n

\n\t\u5728\u6beb\u7c73\u6ce2\u901a\u4fe1\u5de5\u4f5c\u9891\u7387\u4e0b\uff0c\u7d27\u51d1\u7684\u8d34\u7247\u5929\u7ebfPCB\u65e0\u7ebf\u5929\u7ebf\u4e5f\u66f4\u52a0\u88ab\u5173\u5fc3\u3002\u6bd4\u5982\u7528\u4ee5\u6c7d\u8f66\u7535\u5b50\u4ea7\u54c1\u5b89\u5168\u7ba1\u7406\u7cfb\u7edf\u768477GHz\u9ad8\u7d1a\u9a7e\u9a76\u8f85\u52a9\u7cfb\u7edf(AD<\/u>AS)\uff0c\u5c31\u4ee5\u8fd9\u7c7b\u65e0\u7ebf\u5929\u7ebf\u5b8c\u6210\u76f2\u70b9\u68c0\u6d4b\uff0c\u5168\u81ea\u52a8\u5239\u8f66\u7cfb\u7edf\u548c\u9632\u649e\u51fb\u7b49\u4f5c\u7528\u3002\u56e0\u4e3a\u8fd9\u7c7b\u6a21\u5f0f\u7684\u6570\u636e\u4fe1\u53f7\u529f\u7387\u8f83\u4f4e\uff0cADAS\u63a5\u6536\u5668\u5c31\u9700\u8981\u501f\u52a9\u5176\u9ad8\u7075\u654f\uff0c\u9760\u8c31\u5730\u68c0\u9a8c\u4ece\u8def\u4eba\u548c\u522b\u7684\u8f66\u5b50\u7b49\u603b\u4f53\u76ee\u6807\u53cd\u5c04\u9762\u7684\u96f7\u8fbe\u56de\u6ce2\u3002<\/p>\n

\n\t<\/p>\n

\n\t\u56fe1\uff1a\u8d34\u7247\u5929\u7ebf\u8d34\u7247\u5929\u7ebf\u6784\u9020\u662f\u5927\u4e2d\u578b\u65e0\u7ebf\u5929\u7ebf\u5217\u9635\u7684\u57fa\u672c\u4e0a\u6784\u6210\u3002<\/p>\n

\n\t<\/p>\n

\n\t\u7535\u6e90\u7535\u8def\u73bb\u7ea4\u677f\u7684\u76f8\u5bf9\u4ecb\u7535\u5e38\u6570(Dk)\u662f\u5f88\u591a\u5f00\u53d1\u8005\u5728\u8bbe\u8ba1\u65b9\u6848\u8d34\u7247\u5929\u7ebf\u8d34\u7247\u5929\u7ebf\u65f6\u7b2c\u4e00\u8981\u8003\u8651\u5230\u7684\u8981\u7d20\u3002\u7535\u8def\u677f\u6750\u6599\u7684Dk\u503c\u5bf9\u7535\u6e90\u7535\u8def\u89c4\u683c\u7684\u5371\u5bb3\uff0c\u5728\u88681\u4e2d\u7684\u56db\u4e2a\u4e8b\u4ef6\u4e2d\u6709\u5b8c\u6574\u7684\u53d9\u8ff0\uff0c\u6570\u636e\u663e\u793a\u5bf9\u7ed9\u51fa\u5de5\u4f5c\u9891\u7387\u7684\u8d34\u7247\u5929\u7ebf\u8d34\u7247\u5929\u7ebf\uff0c\u8d34\u7247\u5f0f\u89c4\u683c\u4f34\u968f\u7740Dk\u503c\u7684\u63d0\u9ad8\u800c\u53d8\u5c0f\u3002<\/p>\n

\n\t\u8be5\u8868\u6709\u6839\u636eMWI-2017APP\u8ba1\u7b97\u8fdb\u884c\uff0c \u8868\u683c\u4e2d\u8d34\u7247\u5929\u7ebf\u8d34\u7247\u5929\u7ebf\u7684\u89c4\u683c\uff0c\u5982\u957f\u77ed(L)\u548c\u603b\u5bbd(W)\uff0c\u53ef\u4ee5\u8fd0\u7528\u4e0b\u5217\u7684\u7b80\u6613\u65b9\u7a0b\u8ba1\u7b97\u83b7\u5f97\uff1a<\/p>\n

\n\tW=(c\/2fr)[2\/(Dkeff 1)]0.5<\/p>\n

\n\tL=\u03bb\/[2(Dkeff)0.5] – 2\u0394L<\/p>\n

\n\t\u5728\u5176\u4e2d\uff1a<\/p>\n

\n\tDkeff=\u8d34\u7247\u5929\u7ebf\u7535\u6e90\u7535\u8def\u7684\u5408\u7406\u76f8\u5bf9\u4ecb\u7535\u5e38\u6570;<\/p>\n

\n\t\u03bb=\u6839\u636e\u8d34\u7247\u5929\u7ebf\u7535\u6e90\u7535\u8def\u7684\u5149\u6ce2\u957f;<\/p>\n

\n\tfr=\u8d34\u7247\u5f0f\u8f90\u5c04\u6e90\u5143\u5668\u4ef6\u7684\u4e32\u8054\u8c10\u632f;<\/p>\n

\n\tc=\u5c3a\u5ea6\u7a7a\u95f4\u4e2d\u7684\u5149\u7684\u901f\u5ea6;<\/p>\n

\n\t\u0394L=\u56e0\u4e3a\u8fb9\u6cbf\u573a\u9020\u6210\u7684\u8d34\u7247\u5f0f\u62d3\u5bbd\u957f\u77ed\u3002<\/p>\n

\n\t\u8d34\u7247\u5929\u7ebf\u8d34\u7247\u5929\u7ebf\u6a21\u5757\u5728\u53d1\u9001\u65f6\u5c06\u78c1\u611f\u5e94\u5361\u8def\u91cc\u8f90\u5c04\u6e90\u5230\u5c3a\u5ea6\u7a7a\u95f4\uff0c\u5728\u63a5\u53d7\u65f6\u5c06\u78c1\u611f\u5e94\u52a8\u80fd\u4f20\u9001\u5230\u8054\u63a5\u7684\u7535\u6e90\u7535\u8def\u4e0a(\u6bd4\u5982\uff0c\u4fe1\u53f7\u63a5\u6536\u5668)\u3002\u4f46\u8d34\u7247\u5f0fPCB\u65e0\u7ebf\u5929\u7ebf\u7684\u4e00\u4e2a\u5173\u952e\u6784\u6210\u6a21\u5757\uff0c\u540c\u8f74\u7535\u7f06\u7ec4\u6210\u4e86\u53e6\u4e00\u4e2a\u5173\u952e\u4e00\u90e8\u5206\u3002\u540c\u8f74\u7535\u7f06\u5728\u8d34\u7247\u5929\u7ebf\u7535\u6e90\u7535\u8def\u548c\u8f90\u5c04\u6e90\u8d34\u7247\u5f0f\u4e2d\u95f4\uff0c\u5177\u6709\u4f20\u9001\u548c\u63a5\u53d7\u78c1\u611f\u5e94\u52a8\u80fd\u7684\u7ebd\u5e26\u529f\u6548\u3002\u7406\u60f3\u5316\u72b6\u51b5\u4e0b\uff0c\u8d34\u7247\u5f0f\u5e94\u5c55\u73b0\u9ad8\u8f90\u5c04\uff0c\u800c\u540c\u8f74\u7535\u7f06\u5e94\u5c55\u73b0\u51cf\u53cd\u5c04\u819c\uff0c\u8fdb\u800c\u5b8c\u6210\u52a8\u80fd\u4ece\u7535\u5b50\u5230\u8d34\u7247\u5f0f\u7684\u9ad8\u6548\u4f20\u9001\u3002<\/p>\n

\n\t\u56fe2\u5c55\u73b0\u4e86\u53ef\u7528\u4ee5\u8d34\u7247\u5929\u7ebf\u8d34\u7247\u5929\u7ebf\u7684\u56db\u79cd\u4e0d\u4e00\u6837\u540c\u8f74\u7535\u7f06\u65b9\u6cd5\uff0c\u5404\u81ea\u4e3a\uff1a\u677e\u85d5\u5408<\/u>\u9988\u7535\uff0c\u6700\u5e95\u5c42\u9988\u7535(\u5e38\u89c1\u4e8e\u53cc\u5c42\u7535\u6e90\u7535\u8def\u4e2d\uff0c\u540c\u8f74\u7535\u7f06\u5728\u8d34\u7247\u5f0f\u4e0b\u8fb9)\uff0c\u7d27\u85d5\u5408\u9988\u7535\uff0c\u53ca\u5176\u56db\u5206\u4e4b\u4e00\u5149\u6ce2\u957f(\u03bb\/ 4)\u7279\u6027\u963b\u6297<\/u>\u9006\u53d8\u7535\u8def\u9988\u7535\u3002\u8fd9\u51e0\u7c7b\u9988\u7535\u65b9\u6cd5\uff0c\u540c\u8f74\u7535\u7f06\u7684\u590d\u6742\u548c\u4e3b\u8981\u7528\u9014\u5747\u4e0d\u540c\u6837\u3002\u6bd4\u5982\uff0c\u9488\u5bf9\u6700\u5e95\u5c42\u9988\u7535\u7684\u72b6\u51b5\uff0c\u8bbe\u8ba1\u5e08\u53ef\u4ee5\u6839\u636e\u6311\u9009\u8868\u5c42\u5e94\u7528\u6700\u4f73\u7684\u7535\u8def\u677f\u6750\u6599\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u8f90\u5c04\u6e90\uff0c\u8fd8\u53ef\u4ee5\u6311\u9009\u4e0d\u4e00\u6837\u7684\u91cc\u5c42<\/u>\u7535\u8def\u677f\u6750\u6599\uff0c\u6765\u51cf\u5c11\u540c\u8f74\u7535\u7f06\u7684\u8f90\u5c04\u6e90\u548c\u63d2\u5165\u635f\u8017\u3002<\/p>\n

\n\t<\/p>\n

\n\t\u56fe2\uff1a\u56db\u79cd\u7528\u4ee5\u8d34\u7247\u5929\u7ebf\u8d34\u7247\u5f0f\u4f01\u4e1a\u4e0d\u4e00\u6837\u7684\u540c\u8f74\u7535\u7f06\uff1a(a)\u677e\u8026\u5408\u9988\u7535\u3001(b)\u6700\u5e95\u5c42\u9988\u7535\u3001(c)\u7d27\u85d5\u5408\u9988\u7535\u3001(d)\u56db\u5206\u4e4b\u4e00\u5149\u6ce2\u957f\u7279\u6027\u963b\u6297\u9006\u53d8\u7535\u8def\u9988\u7535<\/p>\n

\n\t\u5bf9\u65e0\u7ebf\u5929\u7ebf\u800c\u8a00\uff0c\u504f\u539a\u7684\u7535\u8def\u677f\u6750\u6599\u66f4\u975e\u5e38\u5bb9\u6613\u5411\u5916\u8f90\u5c04\u6e90\u52a8\u80fd\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u8bbe\u8ba1\u65b9\u6848\u4f8b\u5982\u8d34\u7247\u5929\u7ebf\u8d34\u7247\u5f0f\u8fd9\u7c7b\u7684\u65e0\u7ebf\u5929\u7ebf\u8f90\u5c04\u6e90\u6a21\u5757\uff0c\u5e94\u5f53\u6311\u9009\u76f8\u5bf9\u6027\u504f\u539a\u800c\u4e14\u5177\u5907\u8f83\u4f4eDk\u503c(\u6bd4\u59822.2\u81f33.5)\u7684\u7535\u8def\u677f\u6750\u6599\u3002\u867d\u7136\u66f4\u9ad8\u4e00\u4e9bDk\u503c\u7684\u539f\u6750\u6599\u8f90\u5c04\u6548\u7387\u8f83\u4f4e\uff0c\u5e94\u7528\u8f83\u9ad8Dk\u503c\u7684\u7535\u8def\u677f\u6750\u6599\u6765\u8bbe\u8ba1\u65b9\u6848PCB<\/u>\u65e0\u7ebf\u5929\u7ebf\u66f4\u5177\u6709\u8da3\u5473\u6027\u3002\u4f46\u5f53\u5fc5\u987b\u8bbe\u8ba1\u65b9\u6848\u66f4\u5c0f\u7684\u8d34\u7247\u5929\u7ebf\u65f6\uff0c\u4ecd\u53ef\u6839\u636e\u4f18\u5316\u800c\u5e94\u7528\u66f4\u9ad8\u4e00\u4e9bDk\u503c\u7684\u7535\u8def\u677f\u6750\u6599\u3002<\/p>\n

\n\tPIM\u5bf9\u7b56<\/p>\n

\n\tPIM\u8f83\u9ad8\u7684\u65e0\u7ebf\u5929\u7ebf\u5f88\u6709\u53ef\u80fd\u4f1a\u9020\u6210\u65e0\u7ebf\u901a\u4fe1\u7cfb\u7edf\u4e2d(\u59824G LTEwifi\u7f51\u7edc\u7684\u5206\u5e03\u5f0f\u7cfb\u7edf\u65e0\u7ebf\u5929\u7ebf\u7cfb\u7edf\u8f6f\u4ef6)\u6570\u636e\u4fe1\u606f\u7684\u9057\u5931\u3002\u800c\u9488\u5bf9\u65b0\u578b\u76845G<\/u>wifi\u7f51\u7edc\uff0c\u867d\u7136\u5176\u5de5\u4f5c\u9891\u7387\u8f83\u9ad8\uff0c\u5177\u4f53\u4e5f\u662f\u8fd9\u822c\u3002<\/p>\n

\n\t\u9488\u5bf9\u6536\u53d6\u548c\u53d1\u9001\u7cfb\u7edf\u8f6f\u4ef6\u4e2d\u7684\u4e24\u4f4d\u5e26\u5185\u8f7d\u6ce2\u901a\u4fe1\u6570\u636e\u4fe1\u53f7\u5de5\u4f5c\u9891\u7387f1\u548cf2\uff0cPIM\u4fbf\u662fnf1-mf2\u548cnf2-mf1\u7684\u6df7\u548c\u7269\u8d28\uff0c\u5728\u5176\u4e2dn\u548cm\u662f\u6574\u6570\u91d1\u989d\u3002\u8fd9\u7c7b\u884d\u5316\u7684PIM\u8c10\u6ce2\u7535\u6d41\u53ef\u4ee5\u6309\u4e00\u5b9a\u6807\u51c6\u5f00\u5c55\u5f52\u7c7b\uff0c\u5176\u6b21\u5e8f\u7531m\u548cn\u4e4b\u548c\u660e\u786e\uff0c\u6bd4\u59822f1-f2\u548c2f2-f1(\u5982\u4e0b\u56fe3)\u7684\u4e09\u9636\u4efd\u91cf\u3002\u4e09\u9636\u4ea4\u8c03\u4efd\u91cf\u975e\u5e38\u503c\u5f97\u5173\u5fc3\uff0c\u7531\u4e8e\u4ed6\u4eec\u79bb\u8f7d\u6ce2\u901a\u4fe1\u6570\u636e\u4fe1\u53f7\u8fd1\u671f\u8fdb\u800c\u5f88\u6709\u53ef\u80fd\u843d\u5728\u63a5\u6536\u5668\u7684\u9891\u6bb5\u5185\uff0c\u800c\u4e14\uff0c\u5047\u5982\u4efd\u91cf\u5177\u5907\u8f83\u5927\u529f\u7387\uff0c\u5c31\u6709\u53ef\u80fd\u4f1a\u5bfc\u81f4\u63a5\u6536\u5668\u4ea7\u751f\u5835\u585e\u3002<\/p>\n

\n\t<\/p>\n

\n\t\u56fe3\uff1a\u4e0d\u4e00\u6837\u7ea7\u522b\u7684\u4ea4\u8c03\u5931\u5e27(IMD)\u3002<\/p>\n

\n\tPIM\u8c10\u6ce2\u7535\u6d41\u91cd\u91cf\u7684\u529b\u5ea6\u4e0d\u4f46\u662ff1\u548cf2\u529b\u5ea6\u7684\u51fd\u6570\u516c\u5f0f\uff0c\u5e76\u4e14\u6216\u662f\u5176\u7ea7\u522b\u7684\u51fd\u6570\u516c\u5f0f\u3002PIM\u8c10\u6ce2\u7535\u6d41\u91cd\u91cf\u7684\u529b\u5ea6\u4f34\u968f\u7740\u7ea7\u522b\u7684\u63d0\u9ad8\u800c\u51cf\u5c11\u3002\u56e0\u800c\uff0c\u7b2c\u4e94\uff0c\u7b2c\u4e03\u548c\u7b2c\u4e5d\u9636PIM\u8c10\u6ce2\u7535\u6d41\u8f93\u51fa\u529f\u7387\u6c34\u51c6\u901a\u5e38\u8f83\u5c0f\u800c\u4e0d\u5bb9\u6613\u5371\u5bb3\u4fe1\u53f7\u63a5\u6536\u5668\u7279\u6027\u3002<\/p>\n

\n\t\u7a76\u7adf\u591a\u4f4e\u7684\u8f93\u51fa\u8109\u51b2\u4fe1\u53f7\u53ef\u4ee5\u89c9\u5f97\u662f\u4f4ePIM\uff1f\u8fd9\u4e00\u503c\u5f88\u6709\u53ef\u80fd\u56e0\u7cfb\u7edf\u8f6f\u4ef6\u800c\u5f02\u3002\u9488\u5bf94G LTE\u7cfb\u7edf\u8f6f\u4ef6\u4e2d\u91c7\u7528\u7684DAS\u673a\u5668\u8bbe\u5907\u4e2d\u5305\u542b\u7684\u4e00\u4e9b\u5fae\u6ce2\u611f\u5e94\u5668\u90e8\u4ef6(\u5982\u5c04\u9891\u8fde\u63a5\u5668\u548c\u7535\u7f06\u7ebf)\uff0c-145dBc\u901a\u5e38\u88ab\u89c9\u5f97\u5145\u8db3\u4f4e\u3002\u6b8a\u4e0d\u77e5\u4e00\u822c\u6765\u8bf4\uff0c-140dBc\u6216\u66f4\u9ad8\u4e00\u4e9b\u6807\u503c\u88ab\u89c9\u5f97\u662f\u8f83\u5f31\u7684PIM\u7279\u6027\uff0c\u800c-150dBc\u88ab\u89c9\u5f97\u662f\u4e0d\u9519\u7684\uff0c-160dBc\u5219\u662f\u51fa\u8272\u7684\u3002<\/p>\n

\n\t\u5728\u4e13\u4e1a\u5236\u5b9a\u7684\u5fae\u6ce2\u6697\u5ba4\u4e2d\u7cbe\u786e\u6d4b\u91cf<\/u>\u65e0\u7ebf\u5929\u7ebf\u548c\u522b\u7684\u65e0\u6e90\u5668\u4ef6\u7684PIM\u8109\u51b2\u4fe1\u53f7\uff0c\u4f4e\u81f3-170 dBc\u5f88\u6709\u53ef\u80fd\u8d85\u8fc7\u6697\u5ba4\u68c0\u6d4b\u566a\u58f0\u6c34\u51c6\u3002 \u5f53\u5e94\u75282\u4e2a 43dBm\u5355\u97f3\u6570\u636e\u4fe1\u53f7\u5f00\u5c55\u68c0\u6d4b\u65f6\uff0c\u5927\u90e8\u5206PIM\u68c0\u6d4b\u6697\u5ba4\u7684\u5177\u4f53\u566a\u97f3\u7b49\u7ea7\u4e3a-165dBc\u3002<\/p>\n

\n\t\u5f53\u540c\u4e00\u526f\u65e0\u7ebf\u5929\u7ebf\u6839\u636e\u4e00\u540c\u7684\u540c\u8f74\u7535\u7f06\u4e0e\u6b64\u540c\u65f6\u5b8c\u6210\u53d1\u9001\u548c\u63a5\u53d7\u4f5c\u7528\u65f6\uff0c\u4f4ePIM\u7279\u522b\u662f\u5728\u5173\u952e\u3002\u7531\u4e8e\u8c03\u9891\u53d1\u5c04\u673a\u548c\u63a5\u6536\u5668\u90fd\u4e0e\u6b64\u540c\u65f6\u5750\u843d\u4e8e\u540c\u4e00\u7cfb\u7edf\u8f6f\u4ef6\u4e2d\uff0c\u597d\u51e0\u4e2a\u53d1\u9001\u6570\u636e\u4fe1\u53f7\u7684\u975e\u7ebf\u6027\u7269\u8d28\u603b\u662f\u4f1a\u9020\u6210\u4e0d\u8981\u60f3\u7684\u4e92\u8c03\u8c10\u6ce2\u7535\u6d41\uff0c\u5176\u529b\u5ea6\u901a\u5e38\u8db3\u591f\u6076\u53d8\u63a5\u6536\u5668\u7684\u7279\u6027\u3002\u6839\u636e\u638c\u63e1\u4e0d\u4e00\u6837\u539f\u6750\u6599\u7279\u70b9\u7684PIM\u9020\u6210\u7279\u70b9\uff0c\u53ef\u4ee5\u51cf\u5c11PIM\u5bf9PCB\u65e0\u7ebf\u5929\u7ebf\u4ea7\u751f\u7684\u5371\u5bb3\u3002<\/p>\n

\n\t\u867d\u7136\u5927\u90e8\u5206\u72b6\u51b5\u4e0bPIM\u662f\u7531\u7535\u6e90\u7535\u8def\u7ed3\u70b9(\u5982\u70b9\u710a\u6216\u5c04\u9891\u8fde\u63a5\u5668)\u4e2d\u4e0d\u5300\u79f0\u7684\u539f\u6750\u6599\u9020\u6210\uff0c\u4f46\u7ebf\u8def\u677f\u5851\u6599\u7684\u7279\u6027\uff0c\u5982\u4e0d\u5149\u6ed1\u7684\u94dc\u6cca\u8868\u5c42\u548c\u5dee\u5f02\u79cd\u7c7b\u7684\u7535\u9540\u5de5\u827a\u8868\u5c42\u5904\u7406\uff0c\u4e5f\u6709\u53ef\u80fd\u4f1a\u9020\u6210\u8f83\u4f4e\u6216\u8f83\u9ad8\u7684PIM\u8109\u51b2\u4fe1\u53f7\u3002\u7535\u8def\u677f\u6750\u6599\u4e2d\u7684\u4e00\u4e9b\u4e3b\u8981\u53c2\u6570\u5c31\u53ef\u4ee5\u7528\u4e8e\u505a\u4e3a\u8bbe\u8ba1\u65b9\u6848\u4f4ePIM PCB\u65e0\u7ebf\u5929\u7ebf\u7684\u53c2\u7167\u3002<\/p>\n

\n\t\u6bd4\u5982\uff0c\u5bf9\u6bd4PCB\u73bb\u7ea4\u677f\u7684\u74f7\u5668\u6216PTFE\u7269\u8d28\uff0c\u73bb\u7ea4\u677f\u7684\u94dc\u6cca\u5916\u8868\u7c97\u7cd9\u5ea6\u5bf9\u5371\u5bb3PIM\u8d77\u5173\u952e\u529f\u6548\u3002\u4e0e\u6b64\u540c\u65f6\uff0c\u9488\u5bf9\u540c\u6837\u7269\u8d28\u539f\u6750\u6599\u7684\u7535\u6e90\u7535\u8def(\u6bd4\u5982\uff0c\u5e26\u6709\u73bb\u7483\u5e03\u6216\u4e0d\u9508\u94a2\u586b\u6599\u7684PTFE)\uff0c\u4e0d\u5149\u6ed1\u7684\u94dc\u6cca\u8868\u5c42\u5bf9PIM\u7684\u5371\u5bb3\u5c31\u9700\u8981\u6bd4\u5149\u6ed1\u7684\u94dc\u6cca\u8868\u5c42\u66f4\u9ad8\u3002<\/p>\n

\n\t\u4e3a\u4e86\u66f4\u597d\u5730\u80fd\u591f\u66f4\u597d\u5730\u4e86\u89e3\u94dc\u6cca\u5916\u8868\u7c97\u7cd9\u5ea6\u4e0ePIM\u7684\u5173\u8054\uff0c\u6839\u636e\u68c0\u6d4b\u5177\u5907\u4e0d\u4e00\u6837\u94dc\u6cca\u5916\u8868\u7c97\u7cd9\u5ea6\u7684\u7535\u6e90\u7535\u8def\u73bb\u7ea4\u677f\uff0c\u5256\u6790\u5176\u5bf9PIM\u7279\u6027\u7684\u5371\u5bb3\u3002<\/p>\n

\n\t\u5177\u4f53\u505a\u6cd5\u5982\u4e0b\u6240\u793a\uff1a\u5148\u7cbe\u786e\u6d4b\u91cf\u6bcf\u4e00\u79cd\u94dc\u6cca\u7684\u5916\u8868\u7c97\u7cd9\u5ea6\uff0c\u968f\u540e\u538b\u751f\u6210\u73bb\u7ea4\u677f\uff0c\u7136\u540e\u5728\u73bb\u7ea4\u677f\u4e0a\u5236\u505a\u8d34\u7247\u5929\u7ebf\u540c\u8f74\u7535\u7f06\u68c0\u6d4b\u7535\u6e90\u7535\u8def\uff0c\u4ee5\u7cbe\u786e\u6d4b\u91cf\u4f7f\u7528\u7684\u6bcf\u4e00\u79cd\u73bb\u7ea4\u677f\u7684PIM\u7279\u6027\u3002\u7ed3\u679c\u663e\u793a\uff0c\u4f34\u968f\u7740\u94dc\u6cca\u5916\u8868\u7c97\u7cd9\u5ea6\u7684\u63d0\u5347\uff0c\u5bf9PIM\u5371\u5bb3\u8d8a\u6765\u8d8a\u5927(\u5982\u4e0b\u56fe4)\u3002<\/p>\n

\n\t<\/p>\n

\n\t\u56fe4\uff1a\u7535\u6e90\u7535\u8def\u4ea7\u54c1\u7684\u94dc\u6cca\u5916\u8868\u7c97\u7cd9\u5ea6\u4e0ePIM\u7279\u6027\u7684\u5173\u8054\u3002<\/p>\n

\n\tPCB\u539f\u6750\u6599\u5236\u505a\u6210\u65e0\u7ebf\u5929\u7ebf\u548c\u5176\u4ed6\u65e0\u6e90\u5668\u4ef6\uff0c\u901a\u8fc7\u8868\u5c42\u7535\u9540\u5de5\u827a\u540e\uff0c\u4e5f\u4f1a\u5bf9PIM\u7279\u6027\u9020\u6210\u5371\u5bb3\u3002\u94c1\u78c1\u6027\u6750\u6599(\u5982\u954d)\uff0c\u4f1a\u4e25\u91cd\u5f71\u54cdPIM\u7684\u7279\u6027\u3002\u5316\u9521\u52a0\u5de5\u5de5\u827a\u901a\u5e38\u4f1a\u6bd4\u88f8\u94dc\u7535\u6e90\u7535\u8def\u5177\u5907\u66f4\u5f3a\u7684PIM\u7279\u6027\uff0c\u800c\u5e94\u7528\u5316\u5b66\u954d\u91d1(ENIG)\u7684\u7535\u6e90\u7535\u8def\u56e0\u4e3a\u5e26\u6709\u954d\u4f1a\u9020\u6210\u8f83\u5f31\u7684PIM\u7279\u6027\u3002<\/p>\n

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