Compact filters based on dual‐mode gap waveguide cavities and 3D printing technology

The design of compact dual‐mode/band filters based on gap waveguide and 3D printing technology is presented in this paper. The spatial power divider is designed to arrange the external coupling. And the multi‐slot middle plate is devised to manage the coupling between the dual‐mode cavities, introdu...

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Veröffentlicht in:Microwave and optical technology letters 2023-03, Vol.65 (3), p.727-732
Hauptverfasser: Shu, Minjie, Wu, Wenxuan, Yang, Qian, Chen, Jianzhong, Guo, Cheng, Zhang, Anxue
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Yang, Qian
Chen, Jianzhong
Guo, Cheng
Zhang, Anxue
description The design of compact dual‐mode/band filters based on gap waveguide and 3D printing technology is presented in this paper. The spatial power divider is designed to arrange the external coupling. And the multi‐slot middle plate is devised to manage the coupling between the dual‐mode cavities, introducing the non‐resonating modes to produce additional transmission zeros and improving the selectivity. Moreover, the dual‐mode/band filters structure are built up and optimized for 3D printing technology. Finally, the fabricated filters are measured to verify the design.
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subjects 3D printing
Coupling
dual‐mode
Electromagnetic wave filters
gap waveguide
nonresonating
Power dividers
Selectivity
Three dimensional printing
Waveguides
title Compact filters based on dual‐mode gap waveguide cavities and 3D printing technology
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