Miniaturized High-Temperature Superconductor Bandpass Filters Using Microstrip S-Type Spiral Resonators
Summary :
At frequencies currently used by mobile communications, many of the microstrip half-wavelength resonators are too large to realize miniaturized filters. For this reason, very small-sized microstrip spiral resonators and filters, using high-temperature superconductors (HTS), have been studied recently. In this paper, the resonant and coupling characteristics of microstrip G-type and S-type spiral resonators are investigated first by using an electromagnetic simulator. Then small-sized 4-pole, 8-pole, and 16-pole Chebyshev bandpass filters using S-type spirals are designed, respectively, with a midband frequency f0 = 1.93 GHz. The frequency responses of the filters satisfy well the desired specifications, and the measured frequency response of the 8-pole HTS filter agrees well with the theoretical prediction.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E88-C No.1 pp.57-61
- Publication Date
- 2005/01/01
- Publicized
- Online ISSN
- DOI
- 10.1093/ietele/e88-c.1.57
- Type of Manuscript
- Special Section PAPER (Special Section on Recent Trends of Microwave and Millimeter-Wave Passive Circuit Components and Technologies for Improvement of Characteristics)
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Zhewang MA, Tamio KAWAGUCHI, Yoshio KOBAYASHI, "Miniaturized High-Temperature Superconductor Bandpass Filters Using Microstrip S-Type Spiral Resonators" in IEICE TRANSACTIONS on Electronics,
vol. E88-C, no. 1, pp. 57-61, January 2005, doi: 10.1093/ietele/e88-c.1.57.
Abstract: At frequencies currently used by mobile communications, many of the microstrip half-wavelength resonators are too large to realize miniaturized filters. For this reason, very small-sized microstrip spiral resonators and filters, using high-temperature superconductors (HTS), have been studied recently. In this paper, the resonant and coupling characteristics of microstrip G-type and S-type spiral resonators are investigated first by using an electromagnetic simulator. Then small-sized 4-pole, 8-pole, and 16-pole Chebyshev bandpass filters using S-type spirals are designed, respectively, with a midband frequency f0 = 1.93 GHz. The frequency responses of the filters satisfy well the desired specifications, and the measured frequency response of the 8-pole HTS filter agrees well with the theoretical prediction.
URL: https://global.ieice.org/en_transactions/electronics/10.1093/ietele/e88-c.1.57/_p
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@ARTICLE{e88-c_1_57,
author={Zhewang MA, Tamio KAWAGUCHI, Yoshio KOBAYASHI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Miniaturized High-Temperature Superconductor Bandpass Filters Using Microstrip S-Type Spiral Resonators},
year={2005},
volume={E88-C},
number={1},
pages={57-61},
abstract={At frequencies currently used by mobile communications, many of the microstrip half-wavelength resonators are too large to realize miniaturized filters. For this reason, very small-sized microstrip spiral resonators and filters, using high-temperature superconductors (HTS), have been studied recently. In this paper, the resonant and coupling characteristics of microstrip G-type and S-type spiral resonators are investigated first by using an electromagnetic simulator. Then small-sized 4-pole, 8-pole, and 16-pole Chebyshev bandpass filters using S-type spirals are designed, respectively, with a midband frequency f0 = 1.93 GHz. The frequency responses of the filters satisfy well the desired specifications, and the measured frequency response of the 8-pole HTS filter agrees well with the theoretical prediction.},
keywords={},
doi={10.1093/ietele/e88-c.1.57},
ISSN={},
month={January},}
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TY - JOUR
TI - Miniaturized High-Temperature Superconductor Bandpass Filters Using Microstrip S-Type Spiral Resonators
T2 - IEICE TRANSACTIONS on Electronics
SP - 57
EP - 61
AU - Zhewang MA
AU - Tamio KAWAGUCHI
AU - Yoshio KOBAYASHI
PY - 2005
DO - 10.1093/ietele/e88-c.1.57
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E88-C
IS - 1
JA - IEICE TRANSACTIONS on Electronics
Y1 - January 2005
AB - At frequencies currently used by mobile communications, many of the microstrip half-wavelength resonators are too large to realize miniaturized filters. For this reason, very small-sized microstrip spiral resonators and filters, using high-temperature superconductors (HTS), have been studied recently. In this paper, the resonant and coupling characteristics of microstrip G-type and S-type spiral resonators are investigated first by using an electromagnetic simulator. Then small-sized 4-pole, 8-pole, and 16-pole Chebyshev bandpass filters using S-type spirals are designed, respectively, with a midband frequency f0 = 1.93 GHz. The frequency responses of the filters satisfy well the desired specifications, and the measured frequency response of the 8-pole HTS filter agrees well with the theoretical prediction.
ER -
English
