电子科技
電子科技
전자과기
Electronic Science and Technology
2015年
9期
112-114,124
,共4页
无源器件%三阶互调%非线性失真
無源器件%三階互調%非線性失真
무원기건%삼계호조%비선성실진
passive components%third-order intermodulation%nonlinear distortion
根据二极管特性，分析了无源互调的产生机理，讨论了无源互调对移动通信的影响。理论分析表明，我国的GSM900存在三阶交调，严重影响接收机性能。文中以天线为例给出了有效的无源互调测试方案，实际测试结果表明，该方案能准确测量对小功率交调信号。
根據二極管特性，分析瞭無源互調的產生機理，討論瞭無源互調對移動通信的影響。理論分析錶明，我國的GSM900存在三階交調，嚴重影響接收機性能。文中以天線為例給齣瞭有效的無源互調測試方案，實際測試結果錶明，該方案能準確測量對小功率交調信號。
근거이겁관특성，분석료무원호조적산생궤리，토론료무원호조대이동통신적영향。이론분석표명，아국적GSM900존재삼계교조，엄중영향접수궤성능。문중이천선위례급출료유효적무원호조측시방안，실제측시결과표명，해방안능준학측량대소공솔교조신호。
The impact of non-linear passive components intermodulation products caused by the quality of com-munication is serous.Based on the diode characteristics, the mechanism of passive intermodulation is analyzed.The effect of passive intermodulation in mobile communications is discussed.Theoretical analysis shows that intermodula-tion in GSM900 system can decrease the performance of receivers.In order to accurately measure the intermodulation products, an effective passive intermodulation test programs is presented, which can accurately measure the low power quantity of intermodulation.
