서지주요정보
다중 Junction에 의한 음파 및 전자파 산란 해석 = Acoustic/electromagnetic wave scattering from multi-junctions
서명 / 저자 다중 Junction에 의한 음파 및 전자파 산란 해석 = Acoustic/electromagnetic wave scattering from multi-junctions / 권재용.
저자명 권재용 ; Kwon, Jae-Yong
발행사항 [대전 : 한국과학기술원, 2002].
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등록번호

8013433

소장위치/청구기호

학술문화관(문화관) 보존서고

DEE 02032

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초록정보

Acoustic and electromagnetic wave scattering from multi-junctions have been investigated in the literature. In chapter 2, acoustic scattering from a hybrid junction in a rectangular waveguide is studied. The Fourier-transform and mode matching is used to represent the scattered wave and the simultaneous equations for the modal coefficients are formulated. A residue calculus is utilized to obtain a solution to the simultaneous equations in fast-converging series. Numerical computations are performed to show the behavior of transmission in terms of junction geometry and operating frequency. The utility of acoustic hybrid junction is discussed in terms of its decoupling characteristics. In chapter 3, TM-wave radiation from a stepped-parallel-plate waveguide aperture is studied. The Fourier-transform and mode matching is used to represent the scattered wave and the simultaneous equations for the modal coefficients are formulated. The residue calculus is utilized to obtain a solution in fast-converging series. Numerical evaluation shows the behavior of reflection in terms of the step geometry and operating frequency. Comparison with a right-angled flanged parallel-plate waveguide aperture shows good possibility to use a steppedparallel-plate as a matching structure. In chapter 4, electromagnetic wave radiation from an obliquely-flanged parallel-plate waveguide is studied. The Fourier-transform/series and Green's formula is used to represent the scattered wave and the simultaneous equations for the modal coefficients are formulated. Residue calculus is utilized to obtain a fast-convergent series solution. Numerical evaluation shows the behaviors of transmission, reflection, and radiation in terms of junction geometry and operating frequency. In chapter 5, TM and TE wave transmission of an oblique parallel-plate waveguide array is studied. The scattered wave is represented in terms of continuous and discrete modes based on the Fourier transform and series, respectively. The tangential field continuities at the boundary are enforced to obtain simultaneous equations for the discrete modal coefficients. Residue calculus is utilized to transform the radiation field and the reflection coefficient into numerically-efficient forms. Numerical computations are performed to illustrate the behavior of wave radiation and reception by an oblique waveguide array.

서지기타정보

서지기타정보
청구기호 {DEE 02032
형태사항 v, 98 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 수록
저자명의 영문표기 : Jae-Yong Kwon
지도교수의 한글표기 : 엄효준
지도교수의 영문표기 : Hyo-Joon Eom
수록잡지명 : "Acoustic hybrid junction in a rectangular waveguide". Journal of the acoustical society of america, v.107 no.4, pp. 1868-1873 (2000)
수록잡지명 : "TM-radiation from an obliquely-flanged parallel-plate waveguide". IEEE transactions on antennas and propagation, (2002)
학위논문 학위논문(박사) - 한국과학기술원 : 전기및전자공학전공,
서지주기 참고문헌 수록
주제 다중 junction
음파
전자파
도파관
산란해석
Fourier transform
mode matching
Green's formula
superposition
hybrid junction
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