Compact Quad-Band Bandpass Filter Based on Stub-Loaded Resonators

This paper presents a planar quad-band bandpass filter with high out-of-band rejection. The filter is based on intercoupled stub-loaded resonators, where pairs of resonators are electromagnetically coupled to each other and the feedlines. This results in excitation of passbands, where the first and...

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Main Authors: Virdee, Bal Singh, Farhat, Mohamad, Riaz, Muhammad
Format: Conference or Workshop Item
Language:English
Published: 2017
Subjects:
Online Access:https://repository.londonmet.ac.uk/1305/2/PID4689815_Final%20Paper.pdf
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author Virdee, Bal Singh
Farhat, Mohamad
Riaz, Muhammad
author_facet Virdee, Bal Singh
Farhat, Mohamad
Riaz, Muhammad
author_sort Virdee, Bal Singh
collection LMU
description This paper presents a planar quad-band bandpass filter with high out-of-band rejection. The filter is based on intercoupled stub-loaded resonators, where pairs of resonators are electromagnetically coupled to each other and the feedlines. This results in excitation of passbands, where the first and the third passbands are generated by /4 resonators. The second and the fourth passbands are excited by /2 resonators. The proposed technique provides sufficient degree of freedom to control the center frequency and bandwidth of the four passbands. In addition, the five transmission zeros created around the passbands results in a quad-band filter with high selectivity, sharp 3 dB cut-off frequency, high isolation, and low passband insertion-loss. The proposed technique was verified practically. Design methodology and experimental results of the prototype filter are provided.
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spelling oai:repository.londonmet.ac.uk:13052018-01-08T10:25:04Z https://repository.londonmet.ac.uk/1305/ Compact Quad-Band Bandpass Filter Based on Stub-Loaded Resonators Virdee, Bal Singh Farhat, Mohamad Riaz, Muhammad 620 Engineering & allied operations This paper presents a planar quad-band bandpass filter with high out-of-band rejection. The filter is based on intercoupled stub-loaded resonators, where pairs of resonators are electromagnetically coupled to each other and the feedlines. This results in excitation of passbands, where the first and the third passbands are generated by /4 resonators. The second and the fourth passbands are excited by /2 resonators. The proposed technique provides sufficient degree of freedom to control the center frequency and bandwidth of the four passbands. In addition, the five transmission zeros created around the passbands results in a quad-band filter with high selectivity, sharp 3 dB cut-off frequency, high isolation, and low passband insertion-loss. The proposed technique was verified practically. Design methodology and experimental results of the prototype filter are provided. 2017-01-17 Conference or Workshop Item PeerReviewed text en cc_by_nc_nd https://repository.londonmet.ac.uk/1305/2/PID4689815_Final%20Paper.pdf Virdee, Bal Singh, Farhat, Mohamad and Riaz, Muhammad (2017) Compact Quad-Band Bandpass Filter Based on Stub-Loaded Resonators. In: International Microwave Symposium, 4-9 June 2017, Hawaii. https://ims2017.org/
spellingShingle 620 Engineering & allied operations
Virdee, Bal Singh
Farhat, Mohamad
Riaz, Muhammad
Compact Quad-Band Bandpass Filter Based on Stub-Loaded Resonators
title Compact Quad-Band Bandpass Filter Based on Stub-Loaded Resonators
title_full Compact Quad-Band Bandpass Filter Based on Stub-Loaded Resonators
title_fullStr Compact Quad-Band Bandpass Filter Based on Stub-Loaded Resonators
title_full_unstemmed Compact Quad-Band Bandpass Filter Based on Stub-Loaded Resonators
title_short Compact Quad-Band Bandpass Filter Based on Stub-Loaded Resonators
title_sort compact quad band bandpass filter based on stub loaded resonators
topic 620 Engineering & allied operations
url https://repository.londonmet.ac.uk/1305/2/PID4689815_Final%20Paper.pdf
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AT farhatmohamad compactquadbandbandpassfilterbasedonstubloadedresonators
AT riazmuhammad compactquadbandbandpassfilterbasedonstubloadedresonators