Novel modal analysis of a circular-to-rectangular waveguide T-junction and its application to design of circular waveguide dual-mode filters

Wu, Ke-Li; Yu, Ming; Sivadas, A.

doi:10.1109/22.982225

Cited by 17 publications

References 8 publications

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A new probe‐excited dual‐mode cavity filter

Leng

Shen

Khong

2003

Micro & Optical Tech Letters

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the proposed formulation we have analyzed several waveguiding structures. The results obtained-which include propagating, evanescent, and complex modes-are in good agreement with those obtained by HFSS. REFERENCES1. M.N.O. Sadiku, Numerical techniques in electromagnetics, 2nd ed., CRC Press, Boca Raton, FL, 2001. 2. A. Taflove and S. Hagness, Computational electrodynamics: The finitedifference time-domain method, 2nd ed., Artech-House, Boston, 2000. 3. M.-L. Lui and Z. Chen, A direct computation of propagation constant using compact 2-D full-wave eigen-based finite-difference frequencydomain technique, Proc Int Comput Electromagn Conf, Beijing, 1999, pp. 78 -81. A compact 2-D full-wave finite-difference frequency-domain method for general guided wave structures, IEEE Trans Microwave Theory Techn MTT-50 (2002), ABSTRACT: This paper presents a novel configuration for dual-mode cylindrical cavity filters operating in the TE 111 mode. The proposed configuration is compact yet simple, with only one coupling probe to excite two orthogonal TE 111 modes in a cylindrical waveguide cavity. A prototype is designed to operate at 10 GHz. Simulated and experimental results are provided. ABSTRACT: A novel four-branch single-mode wide-angle power divider, consisting of a symmetric Y-branch waveguide with a phase front retarder around the junction and a central V-shaped two-branch waveguide located a coupling gap apart, is proposed. Low loss, large angle, and uniform output power distribution can be achieved by adjusting the gap between Y-branch and V-shaped two-branch waveguides.Moreover, the proposed power divider can be used in wide-bandwidth wavelength-division-multiplexing (WDM) systems. Also, the effect on the power-dividing ratio is insensitive to fabrication tolerance.

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A new probe‐excited dual‐mode cavity filter

Leng

Shen

Khong

2003

Micro & Optical Tech Letters

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Scattering analysis for a circular to rectangular T‐junction

Hwang

Eom

2004

Micro & Optical Tech Letters

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The reflection and transmission characteristics of a circular‐to‐rectangular single T‐junction are analyzed. The techniques of Fourier transform and mode matching are used for the analysis. An approximate dominant‐mode solution is derived in a closed form. Computations show that our result is numerically efficient and accurate, and thus will be useful for practical application. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 41: 231–234, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20102

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Selected Applications in Waveguide Systems

Kantartzis

Tsiboukis

2006

Higher Order FDTD Schemes for Waveguide and Antenna Structures

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Novel modal analysis of a circular-to-rectangular waveguide T-junction and its application to design of circular waveguide dual-mode filters

Cited by 17 publications

References 8 publications

A new probe‐excited dual‐mode cavity filter

A new probe‐excited dual‐mode cavity filter

Scattering analysis for a circular to rectangular T‐junction

Selected Applications in Waveguide Systems

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