A compact 5-bit phase shifter MMIC for K-band satellite communication systems

The design and performance of a compact, K-band, 5-bit phase shifter MMIC is presented. Extensive EM simulation and compact circuit design techniques were employed to yield an MMIC with a 1.693 mm/spl times/0.750 mm (1.27 mm/sup 2/) die size. Measured performance of the phase shifter at 19 GHz demonstrates 5 dB/spl plusmn/0.6 dB insertion loss and 3/spl deg/ RMS phase error.