Title :
Novel band-pass filter utilizing S-shaped slot line resonators
Author :
Deleniv, A. ; Gashinova, M. ; Eriksson, A. ; Khalabuhov, A.
Author_Institution :
Dept. of Microelectron. MC-2, Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
A novel band-pass filter is designed and verified experimentally. The filter consists of five S-shaped slot-line resonators, which are aligned to form an array of coupled slots. The simulated filter pass-band is centered at 1.77 GHz with a 0.5% bandwidth and, with the exception of small frequency shift (20 MHz), shows rather good agreement with measured data. A high-temperature superconducting (YBCO) film on a 1 mm thick LaAlO/sub 3/ substrate is used to achieve low insertion loss (-0.6 dB at 77 K). The filter design is based on a full-wave model of coupled slots, which enables the possibility of quick and accurate circuit simulations using the duality principle.
Keywords :
UHF filters; band-pass filters; barium compounds; circuit simulation; high-temperature superconductors; resonator filters; slot line components; superconducting filters; superconducting microwave devices; yttrium compounds; -0.6 dB; 1.77 GHz; 77 K; LaAlO/sub 3/; LaAlO/sub 3/ substrate; S-shaped slot line resonators; YBCO high-temperature superconducting film; YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta//-LaAlO/sub 3/; band-pass filter; circuit simulations; coupled slot array; coupled slots; duality principle; frequency shift; full-wave model; low insertion loss; simulated filter pass-band; Band pass filters; Bandwidth; Filter bank; Frequency measurement; High temperature superconductors; Resonator filters; Substrates; Superconducting films; Superconducting filters; Yttrium barium copper oxide;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1212556
