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Novel compact waveguide filtering twist for CNC machining
  • +3
  • Yi Zhang,
  • Xiaobang Shang,
  • Jun Xu,
  • Yuewei Guo,
  • Lei Duan,
  • Xiao Lu
Yi Zhang
University of Electronic Science and Technology of China

Corresponding Author:zhangyi1026@foxmail.com

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Xiaobang Shang
National Physical Laboratory - UK
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Jun Xu
University of Electronic Science and Technology of China
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Yuewei Guo
Hebei BOWEI Integrated Circuits Co., Ltd.
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Lei Duan
Hebei BOWEI Integrated Circuits Co., Ltd.
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Xiao Lu
Hebei BOWEI Integrated Circuits Co., Ltd.
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Abstract

In this letter, we present a novel compact waveguide filtering twist that can be readily fabricated from metal using the computer numerical control (CNC) machining process. This filtering twist is comprised of four coupled resonators which are rotationally deformed to provide the desired 90-degree twist. Such resonator structures eliminate the use of curved features and therefore are ideally suitable for conventional CNC machining. The proposed design offers appealing advantages including great compactness, easy fabrication, and good scalability to millimetre-wave and terahertz frequencies. The design is demonstrated at X-band and has a fourth-order Chebyshev filter response (bandwidth 0.4 GHz, centred at 10 GHz). The good agreement between simulation and measurement results validates the proposed concept.
14 Oct 2022Submitted to Electronics Letters
16 Oct 2022Submission Checks Completed
16 Oct 2022Assigned to Editor
17 Oct 2022Reviewer(s) Assigned
11 Nov 2022Review(s) Completed, Editorial Evaluation Pending
16 Nov 2022Editorial Decision: Revise Minor
28 Nov 20221st Revision Received
28 Nov 2022Submission Checks Completed
28 Nov 2022Assigned to Editor
28 Nov 2022Review(s) Completed, Editorial Evaluation Pending
30 Nov 2022Editorial Decision: Accept