Frequency Dependence Measurements of Complex Permittivity of Dielectric Plates Using TE0m1 Modes in a Circular Cavity
Summary :
A circular cavity resonance method is improved to measure the frequency dependence of complex permittivity of a dielectric plate by using multimode TE0m1 with integer m. The measurement principle is based on a rigorous analysis by the Ritz-Galerkin method. A new circular cavity with lowered height is designed from a mode chart of a cavity to decrease the number of unwanted modes near the TE0m1 modes. A copper cavity having 20 GHz for the TE011 mode was constructed based on this design. For glass cloth PTFE, RT/duroid 6010 and FR-4 dielectric plates, the frequency dependences are measured from resonant frequencies for the TE0m1 (m = 1, 2, 3 ...) modes. These measured results agree well with ones measured by using the conventional four different size cavities with TE011 mode. It is verified that the designed cavity structure is useful to measure the frequency dependence of low loss dielectric plates.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E93-C No.7 pp.1126-1131
- Publication Date
- 2010/07/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E93.C.1126
- Type of Manuscript
- Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)
- Category
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Hossain S. M. NAZARAT, Yoshio KOBAYASHI, Zhewang MA, "Frequency Dependence Measurements of Complex Permittivity of Dielectric Plates Using TE0m1 Modes in a Circular Cavity" in IEICE TRANSACTIONS on Electronics,
vol. E93-C, no. 7, pp. 1126-1131, July 2010, doi: 10.1587/transele.E93.C.1126.
Abstract: A circular cavity resonance method is improved to measure the frequency dependence of complex permittivity of a dielectric plate by using multimode TE0m1 with integer m. The measurement principle is based on a rigorous analysis by the Ritz-Galerkin method. A new circular cavity with lowered height is designed from a mode chart of a cavity to decrease the number of unwanted modes near the TE0m1 modes. A copper cavity having 20 GHz for the TE011 mode was constructed based on this design. For glass cloth PTFE, RT/duroid 6010 and FR-4 dielectric plates, the frequency dependences are measured from resonant frequencies for the TE0m1 (m = 1, 2, 3 ...) modes. These measured results agree well with ones measured by using the conventional four different size cavities with TE011 mode. It is verified that the designed cavity structure is useful to measure the frequency dependence of low loss dielectric plates.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E93.C.1126/_p
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@ARTICLE{e93-c_7_1126,
author={Hossain S. M. NAZARAT, Yoshio KOBAYASHI, Zhewang MA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Frequency Dependence Measurements of Complex Permittivity of Dielectric Plates Using TE0m1 Modes in a Circular Cavity},
year={2010},
volume={E93-C},
number={7},
pages={1126-1131},
abstract={A circular cavity resonance method is improved to measure the frequency dependence of complex permittivity of a dielectric plate by using multimode TE0m1 with integer m. The measurement principle is based on a rigorous analysis by the Ritz-Galerkin method. A new circular cavity with lowered height is designed from a mode chart of a cavity to decrease the number of unwanted modes near the TE0m1 modes. A copper cavity having 20 GHz for the TE011 mode was constructed based on this design. For glass cloth PTFE, RT/duroid 6010 and FR-4 dielectric plates, the frequency dependences are measured from resonant frequencies for the TE0m1 (m = 1, 2, 3 ...) modes. These measured results agree well with ones measured by using the conventional four different size cavities with TE011 mode. It is verified that the designed cavity structure is useful to measure the frequency dependence of low loss dielectric plates.},
keywords={},
doi={10.1587/transele.E93.C.1126},
ISSN={1745-1353},
month={July},}
Copy
TY - JOUR
TI - Frequency Dependence Measurements of Complex Permittivity of Dielectric Plates Using TE0m1 Modes in a Circular Cavity
T2 - IEICE TRANSACTIONS on Electronics
SP - 1126
EP - 1131
AU - Hossain S. M. NAZARAT
AU - Yoshio KOBAYASHI
AU - Zhewang MA
PY - 2010
DO - 10.1587/transele.E93.C.1126
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E93-C
IS - 7
JA - IEICE TRANSACTIONS on Electronics
Y1 - July 2010
AB - A circular cavity resonance method is improved to measure the frequency dependence of complex permittivity of a dielectric plate by using multimode TE0m1 with integer m. The measurement principle is based on a rigorous analysis by the Ritz-Galerkin method. A new circular cavity with lowered height is designed from a mode chart of a cavity to decrease the number of unwanted modes near the TE0m1 modes. A copper cavity having 20 GHz for the TE011 mode was constructed based on this design. For glass cloth PTFE, RT/duroid 6010 and FR-4 dielectric plates, the frequency dependences are measured from resonant frequencies for the TE0m1 (m = 1, 2, 3 ...) modes. These measured results agree well with ones measured by using the conventional four different size cavities with TE011 mode. It is verified that the designed cavity structure is useful to measure the frequency dependence of low loss dielectric plates.
ER -
English
