Publication Details
Overview
 
 
Khaled Khalaf, Khaled Khalaf, Kristof Vaesen, Kristof Vaesen, Steven Brebels, Steven Brebels, Giovanni Mangraviti, Giovanni Mangraviti, Michael Libois, Michael Libois, Charlotte Soens, Charlotte Soens, Wim Van Thillo, Wim Van Thillo, Piet Wambacq, Piet Wambacq
 

Contribution to journal

Abstract ■

An eight-way phased-array TRX front-end with RF phase shifting and on-chip transmit/receive switching is implemented in 28-nm CMOS. The TX P 1dBout and RX noise figure (NF) are 10 dBm and 6.8 dB, respectively. The active phase shifter shows less than 5° phase resolution and amplitude errors within ± 0.35 dB. The 9.6-mm 2 chip consumes 231 mW in RX and 508 mW in the TX mode from a 0.9-V supply. When combined with PCB antennas, a ±46° scan angle is obtained with <;0.4 dB peak-to-peak gain ripples without calibration. We also present an approach to express the noise performance of a phased-array receiver in terms of the effective isotropic NF, as an extension to the NF, which is only defined for a two-port system.

Reference ■