Development of a CMOS receiver for a radio-telescope phased-array feed

Next generation radio telescopes will have a very large number of antenna elements. For such systems, ultra-low-noise ambient-temperature integrated CMOS receivers can address some design challenges, such as size, weight, power consumption, and cost. This paper describes the development of one such receiver. Developed in 65-nm TSMC CMOS, it operates between 0.7 and 1.5 GHz and achieves minimum noise temperatures of 16 K at 1.5GHz and power gain of 70 dB, while consuming 265 mW of power.