CDMA射频接收机的噩梦:交叉调制

AP-ASIC'99. First IEEE Asia Pacific Conference on ASICs (Cat. No.99EX360) Pub Date : 1999-08-23 DOI:10.1109/APASIC.1999.824118

B. Ko, Dong-Bin Cheon, Seong-Wook Kim, Jin-Su Ko, Jeong-Keun Kim, Byeong-ha Park

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引用次数: 24

摘要

本文对CDMA发射机泄漏信号与单音干扰信号的交叉调制进行了定量分析，提出了在接收机设计中克服这种交叉调制的设计准则。分析表明，双工隔离和LNA IIP3是交叉调制的主要原因。结果表明，满足J-STD-018 PCS规范所需的LNA IIP3约为4-5 dBm，双工隔离为50 dB。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A nightmare for CDMA RF receiver: the cross modulation

This paper presents a quantitative analysis on the cross modulation between transmitter CDMA leakage signal and single tone jammer signal, and some design guidelines for overcoming it in receiver design. The analysis shows that duplexer isolation and LNA IIP3 are responsible for the cross modulation. It also shows that LNA IIP3 required for meeting J-STD-018 PCS specification is about 4-5 dBm with duplexer isolation of 50 dB.

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AP-ASIC'99. First IEEE Asia Pacific Conference on ASICs (Cat. No.99EX360)

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