A 16.2-to-22.2-GHz Phased-Array Receiver with –60-to-85 °C Simultaneously Gain and NF Temperature Compensation Supporting 24 Gb/s 64QAM Modulation

This paper presents a 16.2-to-22.2 GHz eightelement phased-array receiver (RX) with simultaneously gain and noise figure (NF) temperature compensation. An analog temperature compensation scheme is proposed, coupled with a gate-inductor-free double-gm-boosting low noise amplifier (LNA), to ensure stable operation from -60°C to 85°C while reducing system's NF. The chip is fabricated in 65nm CMOS process, exhibiting a 25.8 dB peak gain, 2.7 dB NF and 6 GHz bandwidth from 16.2 to 22.2 GHz. Results of temperature-variable measurement over a range of –60-to-85 °C showed 0.6-dB-gain and 0.4-dB-NF variation, along with an EVM value better than 30.6 dBc with 24 Gb/s data rate. To the knowledge of the authors, the work achieves the highest data rate among RXs at similar frequency band in bulk CMOS technology so far.