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2025-02-18
Novel Hexagonal Cross-Coupled Dielectric Waveguide Filter
By
Progress In Electromagnetics Research C, Vol. 152, 253-258, 2025
Abstract
In this paper, a six-order cross-coupled ceramic dielectric waveguide filter (CDWF) based on equilateral triangle resonators is introduced. It is composed of a regular hexagonal cavity, which is divided into six equilateral triangular blocks. The filter exhibits two transmission zeros outside the passband that ensure its out-of-band suppression greater than 45 dB. Measured results show that the insertion loss is less than 1 dB and the return loss more than 16 dB within the operating frequency range of 3.4-3.6 GHz. The ceramic dielectric used here has a dielectric constant of 20.3 and a thickness of 5 mm. Thus, it has the advantages of compact size and excellent frequency selectivity.
Citation
Xiao Tao Yao, Yun Xiu Wang, Yang Gao, and Jiankang Zhang, "Novel Hexagonal Cross-Coupled Dielectric Waveguide Filter," Progress In Electromagnetics Research C, Vol. 152, 253-258, 2025.
doi:10.2528/PIERC24122403
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