An inherently linear phase-oversampling vector modulator in 90-nm CMOS
作者： Richard Tseng , Hao Li , Dae Hyun Kwon , Ada SY Poon , Yun Chiu
DOI: 10.1109/ASSCC.2009.5357262
关键词:
摘要: A four-antenna vector modulator (VM) beamforming receiver in 90-nm CMOS operating between 2.4 and 4.9 GHz is presented. The VM based on a phase-oversampling technique that allows the synthesis of inherently linear, high-resolution complex gains without variable gain amplifiers. It achieves 360° phase shift programmability with 8-bit digital control, measured 24 dB for interferers impinging from different directions.
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