Title :
3 GHz band HTS multichannel receiving unit with 8 modules
Author :
Kayano, H. ; Shiokawa, N. ; Kawaguchi, Tatsuki ; Nakayama, Keisuke ; Yamazaki, M.
Author_Institution :
Corp. R&D Center, Toshiba Corp., Kawasaki, Japan
Abstract :
We have proposed an 3 GHz band High-Tc superconducting (HTS) multichannel receiving unit with 8 receiving modules. Each module consists of a small HTS filter and a cooled low noise amplifier (LNA). The HTS filter consists of a number of inter-digital hairpin microstrip line resonators. The module size realize 22×29.5 mm and vacuum chamber size of the HTS multichannel receiving unit realize 152×180×119 mm. It realizes the smallest size as such module products. Insertion loss of the HTS filter was smaller than 0.1dB. As a results, measured results of noise temperature at 77 K for the HTS multichannel receiving unit improved to less than 1/3 as compared with the noise temperature of only LNA at room temperature.
Keywords :
band-pass filters; low noise amplifiers; microstrip filters; microstrip lines; microwave filters; superconducting filters; superconducting resonators; HTS filter; HTS multichannel receiving unit; LNA; cooled low noise amplifier; frequency 3 GHz; high-Tc superconducting multichannel receiving unit; insertion loss; interdigital hairpin microstrip line resonators; loss 0.1 dB; receiving modules; temperature 77 K; vacuum chamber size; High-temperature superconductors; Microstrip filters; Microwave filters; Noise; Resonator filters; Superconducting filters; Temperature measurement; Cryogenic electronics; Microstrip filters; Superconducting filters; Superconducting microwave devices;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2013 IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4673-2929-3
Electronic_ISBN :
2164-2958
DOI :
10.1109/RWS.2013.6486710
