Title :
Hybrid cryogenic low noise amplifier for the MeetKAT array
Author :
Jiang, Frank ; Claude, Stephane ; Garcia, D.
Author_Institution :
NRC Herzberg, Nat. Res. Council, Victoria, BC, Canada
Abstract :
Hybrid microwave integrated circuit technology is used to design and develop an L-band (900-2100 MHz) ultra-low noise amplifier for the MeerKAT array. This low noise amplifier achieved 2 K noise temperature, more than 40 dB gain, S11 & S22 better than -11 & -15 dB at 15 K ambient. Linearity and gain compression is verified. The noise performance is explored as the cooling temperature changes from 15 to 85 K.
Keywords :
UHF amplifiers; cryogenics; low noise amplifiers; microwave antenna arrays; microwave integrated circuits; L-band ultralow noise amplifier; bandwidth 900 MHz to 2100 MHz; cooling temperature changes; gain compression; hybrid cryogenic low noise amplifier; hybrid microwave integrated circuit technology; linearity compression; meetKAT array; noise performance; noise temperature; temperature 15 K to 85 K; temperature 2 K; Arrays; Cryogenics; Gain; Low-noise amplifiers; Noise; Radio astronomy; Cryogenic LNA; Hybrid microwave integrated circuit; Low noise amplifier; MeerKAT array; Noise temperature; SKA;
Conference_Titel :
Antenna Technology and Applied Electromagnetics (ANTEM), 2014 16th International Symposium on
Conference_Location :
Victoria, BC
DOI :
10.1109/ANTEM.2014.6887699
