Filtering power divider with high selectivity using modified coupled-line bandpass filter

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

2 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Title of host publication2018 IEEE MTT-S International Wireless Symposium (IWS 2018) - Proceedings
PublisherIEEE
ISBN (Electronic)978-1-5386-6346-2
Publication statusPublished - May 2018

Conference

Title2018 IEEE MTT-S International Wireless Symposium, IWS 2018
PlaceChina
CityChengdu
Period6 - 9 May 2018

Abstract

This letter presents a filtering power divider using modified parallel coupled-line bandpass filter (BPF) with multiple coupling from source/load to resonators. This novel coupling topology includes additional coupling between source/load and non-adjacent resonators, namely, extra cross-coupling paths, for a better selectivity. Then less resonators are required to achieve the same stopband performance compared with conventional parallel coupled-line BPF with the same order. Three isolation resistors, instead of only one in the conventional power dividers, are used for flexible optimization of isolation. For validation, a three-order filtering power divider operating at 3.4 GHz is demonstrated with more than 14 dB in-band isolation. Three transmission zeros are generated at 2.02 GHz, 2.56 GHz and 4.34 GHz to achieve a better selectivity.

Research Area(s)

  • Bandpass filter, high stopband suppression, multiple coupling paths, power divider, transmission zeros

Citation Format(s)

Filtering power divider with high selectivity using modified coupled-line bandpass filter. / Li, Yuan Chun; Chen, Qi-Xiong; Wu, Di-Si et al.

2018 IEEE MTT-S International Wireless Symposium (IWS 2018) - Proceedings. IEEE, 2018.

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review