Zhu, L; Rossuck, I W; Payapulli, R; Shin, S-H; Lucyszyn, S (2023) 3-D Printed W-Band Waveguide Twist With Integrated Filtering. IEEE Microwave and Wireless Technology Letters, 33 (6). pp. 659-669.

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Abstract

This work demonstrates the integration of a lowpass filter into a 90◦ waveguide twist at W-band (75–110 GHz), manufactured using polymer-based 3-D printing. For the first time, a 1-D periodic electromagnetic bandgap (EBG) structure is incorporated within a waveguide twist. Unlike conventional filters, implemented using irises and septa, EBG structures employing hollow cavities are structurally robust and mechanically insensitive to 3-D printing. The measured average passband insertion loss is only 0.48 dB at the W-band while using our unconventional split-block solution (H-plane a-edge split with raised lips). A nontwist thru filter has also been demonstrated, as a reference. Our approach demonstrates the potential for the low-cost manufacture of compact and high-performance multifunctional integrated waveguide components at millimeterwave frequencies.

Item Type:	Article
Subjects:	Electromagnetics > RF and Microwave
Divisions:	Electromagnetic & Electrochemical Technologies
Identification number/DOI:	10.1109/LMWT.2023.3247942
Last Modified:	14 Feb 2024 15:25
URI:	https://eprintspublications.npl.co.uk/id/eprint/9920