Design for Operation in Two Frequency Bands by Division of the Coupled Region in a Waveguide 2-plane Coupler

Shihao Chen; Takashi Tomura; Jiro Hirokawa; Kota Ito; Mizuki Suga; Yushi Shirato; Daisei Uchida; Naoki Kita

doi:10.1587/transele.2022ECP5004

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Design for Operation in Two Frequency Bands by Division of the Coupled Region in a Waveguide 2-plane Coupler

Shihao Chen, Takashi Tomura, Jiro Hirokawa, Kota Ito, Mizuki Suga, Yushi Shirato, Daisei Uchida, Naoki Kita

著者情報

キーワード: Coupler, finite element method, hollow waveguide, mode matching

ジャーナル認証あり早期公開

論文ID: 2022ECP5004

DOI https://doi.org/10.1587/transele.2022ECP5004

この記事には本公開記事があります。

The final version of this article is now available: Vol. E105.C (2022), No. 12 pp. 729-739

詳細

抄録

A waveguide 2-plane hybrid coupler with two operating bands is proposed. The cross-sectional shape of the coupled region inside the proposed coupler is designed with a two-dimensional arbitrary geometry sorting method. Simulations of the proposed hybrid coupler has a fractional bandwidth (FBW) of 2.17% at the center of 24.99GHz, and at the center of 28.28GHz an FBW of 6.13%. The proposed coupler is analyzed by the mode-matching finite-element hybrid method, and the final result is obtained using a genetic algorithm. The analyzed result of the coupling for the main modes in the coupled region is presented. The design result is confirmed by measurements.

責任著者(Corresponding author)

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