C-band vector phase shifter monolithic microwave integrated circuit design

This paper presents the simulation results of the C-band active vector-sum digitally controlled phase shifter (VSPS) MMIC which is implemented in 0,18 μm RF CMOS technology. VSPS provides discrete phase control in the range from 0° to 360° with 22,5° step achieving 4-bit phase resolution with a 4,5-6,6 dB signal gain. Noise figure is less than 2,5 dB, 1 dB compression 4 dBm. Power consumption is less than 220 mW. The simulation of the phase shifter shows RMS phase error <;3° in bandwidth 4-6 GHz with a corresponding amplitude error <;1 dB.