A compact quint-band bandpass filter based on stub-loaded resonators

Farhat, Mohamad, Munisami, Jagadissen, Abdul-Niby, Mohammed and Nahas, Michel (2017) A compact quint-band bandpass filter based on stub-loaded resonators. Engineering, Technology & Applied Science Research, 7 (3). pp. 1694-1698. ISSN 2241-4487

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Abstract

This paper presents a planar quant-band bandpass filter with a high out-of-band rejection. The filter is based on inter-coupled stub-loaded resonators, where pairs of resonators are electromagnetically coupled to each other and the feed lines. This results in excitation of passbands, where the first and the third passbands are generated by λ/4 stub-loaded resonators. The second and the fifth passbands are excited by λ/2 stub-loaded resonators. And the fourth passband is generated by λ/2 resonators. The proposed technique provides sufficient degree of freedom to control the center frequency and bandwidth of the five passbands. In addition, the seven transmission zeros created around the passbands results in a quant-band filter with high selectivity, sharp 3dB cut-off frequency, high isolation, and low passband insertion-loss. Design methodology and simulation results of the filter are provided.

Item Type: Article
Additional Information: ETASR provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. ETASR is an open access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher, providing that they acknowledge its initial publication in this journal.
Uncontrolled Keywords: Quant-band; stub-loaded resonators; microstrip filter; planer filter
Subjects: Computing > Systems
Computing
Depositing User: Kevin Munisami
Date Deposited: 31 Aug 2017 11:53
Last Modified: 31 Aug 2017 11:53
URI: http://repository.uwl.ac.uk/id/eprint/3834

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