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A Single-Pin Antenna Interface RF Front End Using a Single-MOS DCO-PA and a Push
一种高效低功耗的2.4GHz射频前端设计，集成DCO-PA和推挽LNA，实现单引脚天线接口。
65nm CMOS, 0.3V/0.5V, 0dBm RF输出, 10.2%功率效率, 11dB增益, 6.8dB噪声系数
射频前端DCO-PA单引脚接口推挽LNA低功耗
▸采用单MOS数字控制振荡器功率放大器（DCO-PA），提高天线到DCO的隔离度
▸非反相发射匹配变压器结合零移电容，抑制二次谐波并实现单引脚天线接口
▸推挽低噪声放大器（LNA）复用发射匹配变压器，被动增益提升降低功耗
Abstract
We propose a simple power-efficient sub-1-V fully
integrated RF front end (RFE) for 2.4-GHz transceivers. It intro-
duces the following innovations. First, a function-reuse single-
MOS digitally controlled oscillator power amplifier (DCO-PA)
with full supply utilization improves antenna-to-DCO isolation
for better resilience to jammers. Second, a noninverting transmit-
ter (TX) matching transformer with a zero-shifting capacitor sup-
presses the second-harmonic emission of the DCO-PA and allows
a