Title :
Performance of a YBaCuO superconducting filter/GaAs low noise amplifier hybrid circuit
Author :
Bhasin, K.B. ; Toncich, S.S. ; Chorey, C.M. ; Bonetii, R.R. ; Williams, A.E.
Author_Institution :
NASA Lewis Res. Center, Cleveland, OH, USA
Abstract :
A superconducting 7.3-GHz two-pole microstrip bandpass filter and a GaAs low-noise amplifier (LNA) were combined into a hybrid circuit and characterized at liquid nitrogen temperatures. This superconducting/semiconducting circuit´s performance was compared to that of a gold filter/GaAs LNA hybrid circuit. The noise figure characteristics of the superconducting filter/LNA hybrid circuit when compared to the gold filter/LNA hybrid circuit showed an improvement of 2.1 dB at 77 K. The gain characteristics showed an improvement of 0.5 dB for the high-temperature superconductor (HTS) filter hybrid over the gold hybrid at 77 K.<>
Keywords :
III-V semiconductors; MMIC; band-pass filters; barium compounds; high-temperature superconductors; microwave amplifiers; microwave filters; superconducting integrated circuits; yttrium compounds; 7.3 GHz; 77 K; GaAs; YBaCuO; gain characteristics; high-temperature superconductors; hybrid circuit; liquid nitrogen temperatures; low noise amplifier; noise figure characteristics; superconducting filter; superconducting filter/LNA hybrid; two-pole microstrip bandpass filter; Band pass filters; Circuit noise; Gallium arsenide; Gold; High temperature superconductors; Microstrip filters; Semiconductor device noise; Superconducting device noise; Superconducting filters; Yttrium barium copper oxide;
Conference_Titel :
Microwave Symposium Digest, 1992., IEEE MTT-S International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0611-2
DOI :
10.1109/MWSYM.1992.188018
