Title :
Design and Fabrication of 5 GHz Miniaturized Bandpass Filter Using Superconducting Microstrip Quasi-Spiral Resonators
Author :
Ono, S. ; Harada, Y. ; Saito, A. ; Kimura, M. ; Sekiya, N. ; Hirano, S. ; Ohshima, S. ; Iriuda, H. ; Takahashi, T. ; Yoshizawa, M.
Author_Institution :
Yamagata Univ., Yonezawa
fDate :
6/1/2007 12:00:00 AM
Abstract :
We propose a miniaturized novel microstrip quasi-spiral resonator (QSR) system composed of rewound-type spiral resonator and c-type spiral resonator. We have also designed a 5 GHz superconducting 4-pole bandpass filter (BPF) using QSR for international mobile telecommunication (IMT)-advanced base station receiver applications. The filter has been fabricated using a single-sided MgB2 superconducting thin film deposited by thermal co-evaporation technique. The measured performance of the BPF has been found to show close agreement with the simulated one.
Keywords :
band-pass filters; magnesium compounds; microstrip resonators; mobile communication; superconducting resonators; superconducting thin films; type II superconductors; vacuum deposition; base station receiver applications.; c-type spiral resonator; frequency 5 GHz; international mobile telecommunication; miniaturized bandpass filter; rewound-type spiral resonator; superconducting microstrip quasispiral resonators; superconducting thin film; thermal coevaporation; Band pass filters; Base stations; Fabrication; Microstrip filters; Microstrip resonators; Radio frequency; Resonator filters; Spirals; Superconducting filters; Superconducting thin films; ${rm MgB}_{2}$ thin film; Bandpass filter; miniaturized superconducting filter; quasi-spiral resonator (QSR);
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2007.897707
