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...
Main Authors: | , , |
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Format: | Conference or Workshop Item |
Language: | English |
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2017
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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. |
first_indexed | 2024-07-09T03:46:46Z |
format | Conference or Workshop Item |
id | oai:repository.londonmet.ac.uk:1305 |
institution | London Metropolitan University |
language | English |
last_indexed | 2024-07-09T03:46:46Z |
publishDate | 2017 |
record_format | eprints |
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 |
work_keys_str_mv | AT virdeebalsingh compactquadbandbandpassfilterbasedonstubloadedresonators AT farhatmohamad compactquadbandbandpassfilterbasedonstubloadedresonators AT riazmuhammad compactquadbandbandpassfilterbasedonstubloadedresonators |