서지주요정보
Fourier/Hankel transform analysis for slitted parallel-plate waveguide, inset dielectric guide, and circular aperture = 슬릿을 갖는 평행평판 도파관, 인셋 유전체 도파관 및 원형구멍 산란의 푸리에/한켈 변환 해석
서명 / 저자 Fourier/Hankel transform analysis for slitted parallel-plate waveguide, inset dielectric guide, and circular aperture = 슬릿을 갖는 평행평판 도파관, 인셋 유전체 도파관 및 원형구멍 산란의 푸리에/한켈 변환 해석 / Jung-Hyeong Lee.
저자명 Lee, Jung-Hyeong ; 이정형
발행사항 [대전 : 한국과학기술원, 1997].
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8008213

소장위치/청구기호

학술문화관(문화관) 보존서고

DEE 97051

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초록정보

The theoretical analysis method of this paper is Fourier transform and Mode matching method which were used to analyze the electromagnetic scattering and radiation by slitted parallel-plate waveguide, inset dielectric guide, and circular aperture. This method gives us a series solution in the closed region and an integral solution in the open region. The dominant contribution of the size of the modal matrix is determined by the number of propagating modes and a few significant evanescent modes which exist within the waveguide sections. In chapter 2 and 3 the scattering and radiation from a slitted waveguide is analyzed. The computed results are reflected, transmitted, radiated powers, and radiation pattern. The incident wave is assumed to be TE or TM mode. The effect of the parameter of slit($N_s$,a,d,T) is analyzed. In chapter 3 the grooves are inserted into the parallel plate waveguide. The grooves area kind of scatterer. The groove effect on the performance of antenna is investigated. By inserting the grooves into the parallel-plate waveguide the performance of slitted leaky wave antenna can be enhanced. The experiment and measurement of it confirmed that the theory accords well with the experiment. The effect of the parameter of groove is studied. In chapter 4 the inset dielectric guide is analyzed. The even and odd modes can be decoupled in this waveguide. The computed dispersion curves show the reasonable agreements with Rozzi's paper. In chapter 5 and 6 the problem of the circular aperture is analyzed. The Hankel transform and Mode matching method is applied to the circular aperture. The electrostatic problem is investigated in chapter 5. We see that the transmitted potential increases as the radius of aperture gets larger and the thickness of aperture gets thinner. In chapter 6 the electromagnetic problem of coaxial line is analyzed. As the cartesian coordinate we can see that the same form of solution is obtained which is series form in the closed region and is integral form in the open region. The transmitted power increases as the height of conductor plate gets closer, the operating frequency gets higher, and the outer radius of coaxial line gets bigger. The hybrid technique of Fourier transform and Mode matching is applied to the analysis of electromagnetic scattering and radiation. It is shown that the electrostatic and electromagnetic problem can be solved using this method. By extending this method from cartesian coordinate to cylindrical coordinate the scope of application is enlarged.

서지기타정보

서지기타정보
청구기호 {DEE 97051
형태사항 v, 151 p. : 삽도 ; 26 cm
언어 영어
일반주기 저자명의 한글표기 : 이정형
지도교수의 영문표기 : Hyo-Joon Eom
지도교수의 한글표기 : 엄효준
수록잡지명 : "Scattering and radiation from finite thick slits in parallel-plate waveguide". IEEE Trans. on Antennas and Propagation, vol. 44, no. 2, pp. 212-216 (1996)
수록잡지명 : "Electrostatic potential through a circular aperture in a thick conducting plane". IEEE Trans. on Microwave Theory and Techniques, vol. 44, no. 2, pp. 341-343 (1996)
수록잡지명 : "Reflection of a coaxial line radiating into a parallel-plate". IEEE Microwave and Guided Wave Letters, vol. 6, no. 3, pp. 135-137 (1996)
수록잡지명 : "TM-wave radiation from finite thick slits in parallel plate". IEICE Trans. on Communications, vol. E79-B, no. 6, pp. 875-878 (1996)
학위논문 학위논문(박사) - 한국과학기술원 : 전기및전자공학과,
서지주기 Reference : p. 145-151
주제 Ieaky wave
Radiation
Scattering
Fourier transform
Mode matching
Dielectric
Electrostatic
Coaxial line
누설파
복사
산란
푸리에 변환
모드정합
유전체
정전장
동축선
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