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RISS 활용도 분석
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일본/중국/유럽자료
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최신/인기 학술자료
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RISS 인기검색어
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- 저자 : 이홍열 (검색결과 159 건)
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Bethe's Small Hole Coupling을 이용한 유전체의 밀리미터파대 유전특성 평가방법에 관한 연구
이홍열,전동석,한진우,이상석 한국전기전자재료학회 2002 전기전자재료학회논문지 Vol.15 No.12
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 TE011 mode, the permittivity and Q×f0 were measured as 26.69GHz, 12.9 and 124,000GHz, respectively.
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Bethe's Small Hole Coupling을 이용한 유전체의 밀리미터파대 유전특성 평가방법에 관한연구
이홍열,전동석,한진우,이상석 한국전기전자재료학회 2002 전기전자재료학회논문지 Vol.15 No.12
The circular cavity resonator which can measure the dielectric properties of dielectrics in the Ka-band(26.5GHz∼400Hz) 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 performance 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 TE$\sub$011/ mode, the permittivity and Q${\times}$f$\sub$0/ were measured as 26.69GHz, 12.9 and 124,000GHz, respectively.
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유전체의 밀리미터파대 유전특성 평가방법에 관한 연구 II
이홍열,전동석,김동영,이상석 한국전기전자재료학회 2003 전기전자재료학회논문지 Vol.16 No.12
The circular cavity resonator which can measure the dielectric properties of dielectrics in the V -band(50㎓∼75㎓) frequency range was designed and fabricated. Exciting and detecting of the resonator is performed by WR15 rectangular waveguides using Bethe's small hole coupling. GaAs and PTFE plate samples were used for the verification of the performance of the fabricated circular cavity resonator. In the measurement of GaAs and PTFE using that resonator, the permittivity were measured as I2.87 and 2.14, respectively.
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유전체의 밀리미터파대 유전특성 평가방법에 관한 연구 II
이홍열,전동석,김동영,이상석 한국전기전자재료학회 2003 전기전자재료학회논문지 Vol.16 No.12S
The circular cavity resonator which can measure the dielectric properties of dielectrics in the V-band(50GHz~75GHz) frequency range was designed and fabricated. Exciting and detecting of the resonator is performed by WR15 rectangular waveguides using Bethe's small hole coupling. GaAs and PTFE plate samples were used for the verification of the performance of the fabricated circular cavity resonator. In the measurement of GaAs and PTFE using that resonator, the permittivity were measured as 12.87 and 2.14, respectively.
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