D-band Phased-Array TX and RX Front Ends Utilizing Radio-on-Glass Technology

This paper reports wide-band TX and RX phased-array front ends for D-band (130-170 GHz), implemented in 0.13 µm SiGe BiCMOS process with f T /f max of 300/500 GHz. The TX front end consists of a wide-band vector-modulator phase shifter followed by a PA. The TX yields an output P 1dB of 10 dBm and a total gain of 16 dB. The RX consists of an LNA, wide-band vector-modulator and a buffer stage. It exhibits a gain of 22 dB and a noise figure of 10 dB. A glass interposer is designed with 8 flip-chip TX/RX front ends and an integrated 8x16 slot antenna array, forming a radio-on-glass (RoG) D-band phased-array module.