Title :
2 GHz band superconducting band-pass filter with parallel resonators structure
Author :
Kayano, Hiroyuki ; Fuke, Hiroyuki ; Aiga, Fumihiko ; Terashima, Yoshiaki ; Kato, Riichi ; Suzuki, Yasuo
Author_Institution :
Corp. Res. & Dev. Center, Toshiba Corp., Kawasaki, Japan
Abstract :
A 2 GHz band 2-pole narrow bandwidth superconducting band-pass filter with the parallel structure of the half-wavelength microstrip line resonator was developed. The novel filter was realized by planar structure for the first time. The novel parallel filter operating at 60 K had center frequency of 1.909 GHz, insertion loss of 0.77 dB, 3 dB bandwidth of 0.49%, and maximally flat type characteristic. Moreover, the allowable maximum power of the novel parallel filter was 1.14 dB higher than that of the conventional filter. Given these features, a superconducting narrow-band filter for transmitters for next-generation mobile RF applications is expected to be realized by applying these filters
Keywords :
band-pass filters; microstrip resonators; microwave filters; resonator filters; superconducting filters; superconducting microwave devices; superconducting resonators; 0.77 dB; 2 GHz; 60 K; microstrip line resonator; mobile RF transmitter; parallel structure; planar structure; superconducting band-pass filter; Band pass filters; Bandwidth; Frequency; Insertion loss; Microstrip filters; Microstrip resonators; Narrowband; Resonator filters; Superconducting filters; Transmitters;
Conference_Titel :
Microwave Conference, 2000 Asia-Pacific
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6435-X
DOI :
10.1109/APMC.2000.925904
