Abstract
This paper presents multi-band Tx and Rx phased arrays designed to support the 5G New Radio FR2. The 64-element arrays are built using 16× 1 linear arrays each having four 4×l beamformer chips on a low-cost printed-circuit board (PCB). The arrays demonstrate +/- 60° scanning capability in the azimuth-plane with sidelobe levels <-10 dB. The 64-element Tx array achieves an EIRP of 50-5I.7 dBm at P sat operation and 47.6-49 dBm at P1dB operation at 24.5-48 GHz. 64-QAM single-carrier (SC) 400 MHz waveforms are transmitted achieving <3% EVM rms with 39-40 dBm average EIRP and with 2.4 Gb/s data rate. The Rx phased-array demonstrates a system NF of S.3-6.9 dB at 16-S0 GHz. To the author's knowledge, this work achieves the highest bandwidth phased-array systems suitable for multi-band 5G operation.