Abstract

This paper presents a V-band active one-to-four power splitter in 90-nm LP CMOS process for phased-array transmitter. This power splitter demonstrates a gain which is better than 0 dB from 57 to 65 GHz for each RF path. Besides, 0.75-dB gain imbalance and 4.3° phase imbalance are achieved. The isolation between two adjacent output ports is better than 15.2 dB, and the measured OP <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1dB</inf> is better than −2.67 dBm at 60 GHz while the dc power consumption is 40 mW with 2-V supply voltage.

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