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A 60 GHz-band 2Ã2 phased-array transmitter with independent tuning of vertical and horizontal polarizations is implemented in 65 nm bulk CMOS. Two-dimensional phase tuning via LO phase shifting is implemented in a transmitter that adopts zero-IF upconversion with dynamic DC biasing to minimize LO feedthrough. The 2.9Ã1.4 mm2 chip consumes a total of 590 mW from a 1 V supply when driving all 4 channels at a maximum saturated output of 11 dBm with 20 dB gain per transmitter.
Date of Conference: 7-11 Feb. 2010