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This paper describes a K-band 2-element phase-array receiver in 90 nm CMOS process. The receiver consists of two low noise amplifiers (LNAs), two vector modulators, and a down-converter mixer. The vector modulators are designed using a modified reflection-type in- and quadrature-phase modulator for amplitude and phase control. At 66 GHz, the measured small-signal gain of LNA is 24 dB with a noise...
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