@inproceedings{0f82c9195e504664bc911dd62afa59de,
title = "Dual-band Bandpass Filter Based on Frequency Transformations with Enhanced Inter-band Isolation",
abstract = "The coupling matrix approach is used to synthesize a dual-band filter. The two Chebyshev passbands are in close proximity and symmetric about a designated frequency, where two neighboring zeros are allocated for enhancing inter-band isolation. In the synthesis, two successive frequency transformations originated from lowpass domain are employed to establish the dual-band response. With the aid of source-load coupling, two extra zeros close to outer passband edges are further created to greatly improve the frequency selectivity. A microstrip filter is fabricated and tested for validation. Measured results show good agreement with simulation responses.",
keywords = "Dual-band filter, frequency transformation, inter-band isolation, microstrip, transmission zero",
author = "Tang, {Shao Chan} and Chu, {Pei Cheng} and Kuo, {Jen Tsai} and Lin-Kun Wu",
note = "Funding Information: ACKNOWLEDGMENT This work was supported by the Ministry of Science and Technology, Taiwan, under Grant MOST 106-2221-E-182-007-MY3, and by the Chang Gung University, Taiwan, under Grant BMRPB95.; 2020 Asia-Pacific Microwave Conference, APMC 2020 ; Conference date: 08-12-2020 Through 11-12-2020",
year = "2020",
month = dec,
day = "8",
doi = "10.1109/APMC47863.2020.9331380",
language = "American English",
series = "Asia-Pacific Microwave Conference Proceedings, APMC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "758--760",
editor = "Jie Sun and Yu, {Wai Ho}",
booktitle = "2020 Asia-Pacific Microwave Conference, APMC 2020 - Proceeding",
address = "United States",
}