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A Novel Approach for Mitigation of RF Oscillator Pulling in a Polar Transmitter
提出一种新型数字控制延迟电路，有效抑制极化发射机中射频振荡器的牵引效应。
65nm CMOS, 符合GSM/EDGE标准的EVM和频谱性能
射频振荡器牵引自干扰抑制极化发射机数字控制延迟CMOS集成
▸提出基于AM信号特性的振荡器牵引机制假说
▸开发数学模型分析自干扰特性并通过测量验证
▸实现数字控制延迟电路自动调整相位降低系统敏感性
Abstract
i , Fellow, IEEE, Oren Eliezer , Member , IEEE,
Bhaskar Banerjee, Member , IEEE, and Poras T. Balsara , Member , IEEE
Abstract—A novel technique for mitigation of self interference
in a highly integrated SoC transmitter is presented. The interfer-
ence originates from the internal power amplifier (i.e., aggressor)
that leads to injection pulling of the local RF oscillator (i.e., victim).
The characteristic of injection pulling was found to be dependent
on the AM signal applied to the power amplifi