Scattering by slits between rectangular waveguides : directional coupler application = 구형도파관 사이의 슬릿에 의한 산란 : 방향성 결합기 응용directional coupler application

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A coupling through slit structure between rectangular waveguides has been studied. An efficient rigorous solutions for the problem of the electromagnetic (EM) wave scattering occurring at the slit structures on common wall between waveguides is presented. This structure is widely used in waveguide directional coupler. The fourier transform and mode matching hybrid technique has been used to obtain efficient rigorous solutions for the problem of the electromagnetic (EM) wave scattering occurring at the slit structures on the wall between waveguides. This technique is useful when the geometry of the structure is a junction of two or more regions. A problem of coupling through various slit structures between two parallel-plates is examined in chapter 2,3,4 and 5. It is found that our theory is applicable to the analysis and design of a rectangular directional coupler which has coupling elements in its common wide wall. Numerical computations have been performed to illustrate the behaviour of reflection and transmission in terms of the slit geometry and frequency. The reflection and transmission coefficients are obtained in numerically-efficient, fast-convergent series. Our theoretical results has been applied to design a 3-dB multi-slit coupler. In chapter 6, solution for a problem of coupling through a slit in between two rectangular waveguides has been formulated by using the technique of Fourier transform and mode matching. The Fourier transform and mode matching yields a closed-form solution in fast-convergent series, which is efficient for numerical computation.
Advisors
Eom, Hyo-J.researcher엄효준researcher
Description
한국과학기술원 : 전기및전자공학전공,
Publisher
한국과학기술원
Issue Date
2001
Identifier
165879/325007 / 000945159
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 전기및전자공학전공, 2001.2, [ iv, 140 p. ]

Keywords

Rectangular waveguide; Directional coupler; 방향성 결합기; 구형 도파관

URI
http://hdl.handle.net/10203/35922
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=165879&flag=dissertation
Appears in Collection
EE-Theses_Ph.D.(박사논문)
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