Dual-Band Bandpass Filter Based on Two Pairs of Degenerate Modes of a Regular Hexagonal Prism Dielectric Waveguide Resonator

In this work, a novel dual-band single-cavity dielectric waveguide (DW) bandpass filter (BPF) is proposed. Two pairs of degenerate modes, i.e., TE 121 , TE211, TE122, and TE212, are excited in a regular hexagonal prism. The resonant frequencies of each mode can be controlled by the length and height...

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Bibliographic Details
Published in2023 Cross Strait Radio Science and Wireless Technology Conference (CSRSWTC) pp. 01 - 03
Main Authors Xiong, Shiwen, Guan, Xuehui, Ren, Baoping, Wan, Shaopeng, Zhang, Xiaoyan
Format Conference Proceeding
LanguageEnglish
Published IEEE 10.11.2023
Subjects
Band-pass filters
Bandpass filter (BPF)
dielectric filter
dielectric waveguide resonator (DWR)
Dielectrics
Dual band
Frequency control
mode control
Passband
Resonant frequency
Wireless communication
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Summary:In this work, a novel dual-band single-cavity dielectric waveguide (DW) bandpass filter (BPF) is proposed. Two pairs of degenerate modes, i.e., TE 121 , TE211, TE122, and TE212, are excited in a regular hexagonal prism. The resonant frequencies of each mode can be controlled by the length and height of the regular hexagonal prism. Thus, the center frequencies and bandwidths of each passband can be controlled to some extent. For verification, a 5.6 GHz / 6.54 GHz DW BPF with equal ripple of 0.0432 dB and FBW of 2.8% / 3.4% is designed. Simulated results show that the bandwidth and center frequencies of proposed dual-band BPF can be easily controlled.
ISSN:2377-8512
DOI:10.1109/CSRSWTC60855.2023.10426903