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Numerical and experimental study on confinement in Y-shaped post wall branching waveguide

Article type: Research Article

Authors: Maeda, Hiroshi | Chen, Huili | Tomiura, Kazuya | Yasumoto, Kiyotoshi

Affiliations: Department of Information and Communication Engineering, Fukuoka Institute of Technology, Higashi-Ku, Fukuoka, Japan | Graduate School of Engineering, Fukuoka Institute of Technology, Higashi-Ku, Fukuoka, Japan | Computer Science Laboratory, Fukuoka Institute of Technology, Higashi-Ku, Fukuoka, Japan

Note: [] Corresponding author: Hiroshi Maeda, Department of Information and Communication Engineering, Fukuoka Institute of Technology (FIT), 3-30-1 Wajiro-Higashi, Higashi-Ku, Fukuoka 811-0295, Japan. E-mail: hiroshi@fit.ac.jp

Keywords: CIP method, experiment, microwave, numerical analysis, post wall waveguide, Y-branch waveguide

DOI: 10.3233/MIS-130183

Journal: Mobile Information Systems, vol. 10, no. 2, pp. 217-228, 2014

Received 5 November 2013
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Accepted 5 November 2013
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Published: 2014
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Abstract

Post wall waveguides consist of dielectric or metallic cylinders for microwave around 4 GHz were experimentally and numerically investigated. The structure attracts interests for application of transmission circuit for three-dimensionally integrated planar circuit in millimeter wavelength. In straight waveguide with dielectric cylinders, confinement of microwave is poor, when the post wall was composed of a pair of single row of cylinders. The confinement was improved as increase of rows of post wall. In metallic cylinders, microwave was well confined even when a pair of single row of cylinders composed the waveguide. After confirming confinement of the electromagnetic field, Y-shaped branches of post wall waveguide consisted of dielectric cylinders for microwave were similarly investigated for dielectric rods. The confinement was also improved by increase of post wall up to 3 layers. These results are applicable for fundamental design and fabrication of integrated circuit for microwave and millimeter wave.

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