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A 60 GHz 4 element bidirectional phased-array TX/RX chip with a 2 bit phase shifter and IF converter to/from 12 GHz, using 90 nm CMOS process, is described. The array features 7 dB gain, measured noise figure (NF) of 9 dB, IP1dB of -19 dbm for RX, and output Psat of +3.5 dBm for TX , drawing 60 mA from a 1.3-V supply. The RMS amplitude and phase error of the phase shifter is 0.7 dB and 2deg max respectively...
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