@inproceedings{e26d5b1268364f4d9e63637615ffacff,
title = "Ultra-Compact Substrate Integrated Waveguide Bandpass Filter with Unequal Termination Impedance",
abstract = "This paper demonstrates the design of an ultra-compact substrate integrated waveguide (SIW) bandpass filter (BPF) with unequal termination impedances (UTI). The proposed SIW BPF is designed with quarter-mode (QM) and one-eighth-mode (OEM) SIW cavities. To validate the proposed method, a fourth-order SIW BPF with a center frequency of 5.5 GHz and UTI of 25 Ω-to-50 Ω is designed. The first and last resonators utilize OEM SIW cavities, while the second and third resonators utilize QM SIW cavities. By employing QM and OEM SIW cavities, the overall size of the proposed UTI SIW BPF is only 26.8 {\texttimes} 22.5",
keywords = "Bandpass filter, one-eight-mode, quarter-mode, substrate integrated waveguide, unequal termination impedance",
author = "Phanam Pech and Samdy Saron and Girdhari Chaudhary and Yongchae Jeong",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 31st Asia-Pacific Microwave Conference, APMC 2023 ; Conference date: 05-12-2023 Through 08-12-2023",
year = "2023",
doi = "10.1109/APMC57107.2023.10439966",
language = "English",
series = "Asia-Pacific Microwave Conference Proceedings, APMC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "134--136",
booktitle = "2023 Asia-Pacific Microwave Conference, APMC 2023",
}