Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2002.07b
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- Pages.1136-1139
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- 2002
A Study of the Estimation Method for the Dielectric Properties of Dielectrics in Millimeter Wave Range using Bethe's Small Hole Coupling
Bethe's Small Hole Coupling을 이용한 유전체의 밀리미터파대 유전특성 평가방법에 관한 연구
Abstract
The circular cavity resonator which can measure the dielectric properties of dielectrics in the Ka-band(26.5GHz~40GHz) frequency range was designed and fabricated. A structure of the resonator is divided into two equal parts of the length and the dielectric plate sample is placed between two halves. Exciting and detecting of the resonator is performed by WR28 rectangular waveguides using Bethe's small hole coupling. The GaAs plate sample, whose permittivity is known to be 13 in millimeter wave range, was used for the verification of the performance of the fabricated circular cavity resonator. In the measurement of GaAs single crystal using that resonator, the resonant frequency of the dominant