External Q of a 
Dielectric Resonator Used for Waveguide Bandpass Filter
Summary :
The waveguide bandpass filter with dielectric resonators is usually constructed with a cutoff waveguide including dielectric resonators inside and waveguides which are connected at both ends of the cutoff waveguide. The coupling coefficient between dielectric resonators was obtained by S.B. Cohn. The external Q of a dielectric resonator, however, was not reported in the past, which is necessary for the design of the filter. In this paper, the external Q is obtained by calculating the radiation power by using the displacement current inside the dielectric resonator. The theoretical values of the external Q are obtained corresponding to the distance between input waveguide and a resonator. The results were compared with the experimental results and they were in a good agreement. The external Q is also calculated by using the radiation power from a magnetic dipole source of a resonator. It takes more error than the method by using a displacement current.
- Publication
- IEICE TRANSACTIONS on transactions Vol.E59-E No.1 pp.13-18
- Publication Date
- 1976/01/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Microwaves and Millimeter Waves
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Yoshihiro KONISHI, "External Q of a Dielectric Resonator Used for Waveguide Bandpass Filter" in IEICE TRANSACTIONS on transactions,
vol. E59-E, no. 1, pp. 13-18, January 1976, doi: .
Abstract: The waveguide bandpass filter with dielectric resonators is usually constructed with a cutoff waveguide including dielectric resonators inside and waveguides which are connected at both ends of the cutoff waveguide. The coupling coefficient between dielectric resonators was obtained by S.B. Cohn. The external Q of a dielectric resonator, however, was not reported in the past, which is necessary for the design of the filter. In this paper, the external Q is obtained by calculating the radiation power by using the displacement current inside the dielectric resonator. The theoretical values of the external Q are obtained corresponding to the distance between input waveguide and a resonator. The results were compared with the experimental results and they were in a good agreement. The external Q is also calculated by using the radiation power from a magnetic dipole source of a resonator. It takes more error than the method by using a displacement current.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e59-e_1_13/_p
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@ARTICLE{e59-e_1_13,
author={Yoshihiro KONISHI, },
journal={IEICE TRANSACTIONS on transactions},
title={External Q of a Dielectric Resonator Used for Waveguide Bandpass Filter},
year={1976},
volume={E59-E},
number={1},
pages={13-18},
abstract={The waveguide bandpass filter with dielectric resonators is usually constructed with a cutoff waveguide including dielectric resonators inside and waveguides which are connected at both ends of the cutoff waveguide. The coupling coefficient between dielectric resonators was obtained by S.B. Cohn. The external Q of a dielectric resonator, however, was not reported in the past, which is necessary for the design of the filter. In this paper, the external Q is obtained by calculating the radiation power by using the displacement current inside the dielectric resonator. The theoretical values of the external Q are obtained corresponding to the distance between input waveguide and a resonator. The results were compared with the experimental results and they were in a good agreement. The external Q is also calculated by using the radiation power from a magnetic dipole source of a resonator. It takes more error than the method by using a displacement current.},
keywords={},
doi={},
ISSN={},
month={January},}
Copy
TY - JOUR
TI - External Q of a Dielectric Resonator Used for Waveguide Bandpass Filter
T2 - IEICE TRANSACTIONS on transactions
SP - 13
EP - 18
AU - Yoshihiro KONISHI
PY - 1976
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E59-E
IS - 1
JA - IEICE TRANSACTIONS on transactions
Y1 - January 1976
AB - The waveguide bandpass filter with dielectric resonators is usually constructed with a cutoff waveguide including dielectric resonators inside and waveguides which are connected at both ends of the cutoff waveguide. The coupling coefficient between dielectric resonators was obtained by S.B. Cohn. The external Q of a dielectric resonator, however, was not reported in the past, which is necessary for the design of the filter. In this paper, the external Q is obtained by calculating the radiation power by using the displacement current inside the dielectric resonator. The theoretical values of the external Q are obtained corresponding to the distance between input waveguide and a resonator. The results were compared with the experimental results and they were in a good agreement. The external Q is also calculated by using the radiation power from a magnetic dipole source of a resonator. It takes more error than the method by using a displacement current.
ER -
English
