IEICE TRANSACTIONS on Electronics
A Novel Feeding Structure to Generate Multiple Transmission Zeros for Miniature Waveguide Bandpass Filters Composed of Frequency-Selective Surfaces
Summary :
In this paper, we propose a novel feeding structure for a coaxial-excited compact waveguide filter, which is composed of planar resonators called frequency-selective surfaces (FSSs). In our proposed feeding structure, new FSSs located at the input and output ports are directly excited by the coaxial line. By using the FSSs, the transition from the TEM mode to the TE10 mode is realized by the resonance of the FSSs. Therefore, the backshort length from the coaxial probe to the shorted waveguide end can be made much shorter than one-quarter of the guided wavelength. Additionally, the coaxial-excited FSS provides one transmission zero at each stopband. As a design example, a three-stage bandpass filter with 4% bandwidth at the X band is demonstrated. The designed filter has a very compact size of one cavity and has high skirt selectivity with six transmission zeros. The effectiveness of the design is confirmed by the comparison of frequency characteristics obtained by the simulation and measurement.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E94-C No.10 pp.1586-1593
- Publication Date
- 2011/10/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E94.C.1586
- Type of Manuscript
- Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
- Category
- Passive Devices and Circuits
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Keyword
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Masataka OHIRA, Zhewang MA, Hiroyuki DEGUCHI, Mikio TSUJI, "A Novel Feeding Structure to Generate Multiple Transmission Zeros for Miniature Waveguide Bandpass Filters Composed of Frequency-Selective Surfaces" in IEICE TRANSACTIONS on Electronics,
vol. E94-C, no. 10, pp. 1586-1593, October 2011, doi: 10.1587/transele.E94.C.1586.
Abstract: In this paper, we propose a novel feeding structure for a coaxial-excited compact waveguide filter, which is composed of planar resonators called frequency-selective surfaces (FSSs). In our proposed feeding structure, new FSSs located at the input and output ports are directly excited by the coaxial line. By using the FSSs, the transition from the TEM mode to the TE10 mode is realized by the resonance of the FSSs. Therefore, the backshort length from the coaxial probe to the shorted waveguide end can be made much shorter than one-quarter of the guided wavelength. Additionally, the coaxial-excited FSS provides one transmission zero at each stopband. As a design example, a three-stage bandpass filter with 4% bandwidth at the X band is demonstrated. The designed filter has a very compact size of one cavity and has high skirt selectivity with six transmission zeros. The effectiveness of the design is confirmed by the comparison of frequency characteristics obtained by the simulation and measurement.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E94.C.1586/_p
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@ARTICLE{e94-c_10_1586,
author={Masataka OHIRA, Zhewang MA, Hiroyuki DEGUCHI, Mikio TSUJI, },
journal={IEICE TRANSACTIONS on Electronics},
title={A Novel Feeding Structure to Generate Multiple Transmission Zeros for Miniature Waveguide Bandpass Filters Composed of Frequency-Selective Surfaces},
year={2011},
volume={E94-C},
number={10},
pages={1586-1593},
abstract={In this paper, we propose a novel feeding structure for a coaxial-excited compact waveguide filter, which is composed of planar resonators called frequency-selective surfaces (FSSs). In our proposed feeding structure, new FSSs located at the input and output ports are directly excited by the coaxial line. By using the FSSs, the transition from the TEM mode to the TE10 mode is realized by the resonance of the FSSs. Therefore, the backshort length from the coaxial probe to the shorted waveguide end can be made much shorter than one-quarter of the guided wavelength. Additionally, the coaxial-excited FSS provides one transmission zero at each stopband. As a design example, a three-stage bandpass filter with 4% bandwidth at the X band is demonstrated. The designed filter has a very compact size of one cavity and has high skirt selectivity with six transmission zeros. The effectiveness of the design is confirmed by the comparison of frequency characteristics obtained by the simulation and measurement.},
keywords={},
doi={10.1587/transele.E94.C.1586},
ISSN={1745-1353},
month={October},}
Copy
TY - JOUR
TI - A Novel Feeding Structure to Generate Multiple Transmission Zeros for Miniature Waveguide Bandpass Filters Composed of Frequency-Selective Surfaces
T2 - IEICE TRANSACTIONS on Electronics
SP - 1586
EP - 1593
AU - Masataka OHIRA
AU - Zhewang MA
AU - Hiroyuki DEGUCHI
AU - Mikio TSUJI
PY - 2011
DO - 10.1587/transele.E94.C.1586
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E94-C
IS - 10
JA - IEICE TRANSACTIONS on Electronics
Y1 - October 2011
AB - In this paper, we propose a novel feeding structure for a coaxial-excited compact waveguide filter, which is composed of planar resonators called frequency-selective surfaces (FSSs). In our proposed feeding structure, new FSSs located at the input and output ports are directly excited by the coaxial line. By using the FSSs, the transition from the TEM mode to the TE10 mode is realized by the resonance of the FSSs. Therefore, the backshort length from the coaxial probe to the shorted waveguide end can be made much shorter than one-quarter of the guided wavelength. Additionally, the coaxial-excited FSS provides one transmission zero at each stopband. As a design example, a three-stage bandpass filter with 4% bandwidth at the X band is demonstrated. The designed filter has a very compact size of one cavity and has high skirt selectivity with six transmission zeros. The effectiveness of the design is confirmed by the comparison of frequency characteristics obtained by the simulation and measurement.
ER -
English
