0.13 µm SiGe Fully Integrated 28GHz Transceiver for Distributed Beamforming

This paper presents a wideband fully integrated transceiver at 28 GHz in 0.13 µm SiGe BiCMOS technology. With a phase shifter, power amplifier, low noise amplifier and differential mixer the transceiver is particularly useful for trans-receive distributed beamforming. The transmitter operates over 5 GHz 3 dB bandwidth and has 22.5 dB of gain. With 360° phase rotation capability over 5 GHz and phase shift step less than 1° this transceiver can reduce the impact of the phase shift error in beamforming to near zero. At 28 GHz the transmitter P1dB and Psat output power are 6.13 dBm and 10.2 dBm respectively. The receiver with a differential IF output and 2 GHz bandwidth has a conversion gain of 21 dB for 100 MHz, LO power of 5.3 dBm and RF power of -34.5 dBm.