Title :
Seven-pole HTS microstrip bandpass filter using non-adjacent coupling of pseudo-lumped element resonator
Author :
Jeon, B.K. ; Kim, J.H. ; Lee, C.J. ; Min, B.C. ; Choi, Y.H. ; Kim, S.K. ; Oh, B.
Author_Institution :
Dept. of Radio Sci. & Eng., Kwangwoon Univ., Seoul, South Korea
fDate :
8/3/2000 12:00:00 AM
Abstract :
A new HTS microstrip bandpass filter structure with a quasi-elliptic response is realised using a pseudo-lumped element resonator. A seven-pole bandpass filter on an LaAlO3 substrate is designed and fabricated. The filter has an insertion loss of 0.8 dB at 20 K, a bandwidth of 8 MHz at a centre frequency of 1774 MHz, and an attenuation of 33 dB for a cutoff band of 1 MHz
Keywords :
band-pass filters; elliptic filters; high-temperature superconductors; microstrip filters; resonator filters; superconducting filters; superconducting microwave devices; superconducting resonators; 0.8 dB; 1774 MHz; 20 K; 8 MHz; LaAlO3; LaAlO3 substrate; nonadjacent coupling; pseudo-lumped element resonator; quasi-elliptic response; seven-pole HTS microstrip bandpass filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000971
