A miniature fractal-based dual-mode dual-band microstrip bandpass filter design

In this paper, a fractal-based complementary split-ring resonator (CSRR) has been introduced as a defected ground structure (DGS) in the ground plane of a dual-mode microstrip bandpass filter to produce a new compact filter with dual-band response. The conventional double square ring resonator struc...

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Main Authors: Alqaisy, Mushtaq, Chakrabraty, Chandan, Ali, Jawad, Alhawari, Adam Reda Hasan
Format: Article
Language:English
Published: Cambridge University Press and the European Microwave Association 2015
Online Access:http://psasir.upm.edu.my/id/eprint/36183/
http://psasir.upm.edu.my/id/eprint/36183/1/A%20miniature%20fractal.pdf
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author Alqaisy, Mushtaq
Chakrabraty, Chandan
Ali, Jawad
Alhawari, Adam Reda Hasan
author_facet Alqaisy, Mushtaq
Chakrabraty, Chandan
Ali, Jawad
Alhawari, Adam Reda Hasan
author_sort Alqaisy, Mushtaq
building UPM Institutional Repository
collection Online Access
description In this paper, a fractal-based complementary split-ring resonator (CSRR) has been introduced as a defected ground structure (DGS) in the ground plane of a dual-mode microstrip bandpass filter to produce a new compact filter with dual-band response. The conventional double square ring resonator structure is modified such that its inner ring is made with a fractal shape instead of a square. Measured and simulation results show that the resulting filter offers a dual passband response; the higher passband is attributed to the dual-mode microstrip ring structure, whereas the lower passband is as a result of the embedded CSRR DGS structure. In addition, the results show that the position of the lower passband could be varied, to a certain extent, without affecting the position of the higher passband by applying higher fractal iteration levels to the inner split ring. These features, together with the compact size the proposed filter offers, make it suitable for use in a wide variety of dual-band communication applications. Measured results, carried out on filter prototypes, have been found in agreement with those theoretically predicted.
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language English
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publishDate 2015
publisher Cambridge University Press and the European Microwave Association
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spelling upm-361832015-08-19T08:42:48Z http://psasir.upm.edu.my/id/eprint/36183/ A miniature fractal-based dual-mode dual-band microstrip bandpass filter design Alqaisy, Mushtaq Chakrabraty, Chandan Ali, Jawad Alhawari, Adam Reda Hasan In this paper, a fractal-based complementary split-ring resonator (CSRR) has been introduced as a defected ground structure (DGS) in the ground plane of a dual-mode microstrip bandpass filter to produce a new compact filter with dual-band response. The conventional double square ring resonator structure is modified such that its inner ring is made with a fractal shape instead of a square. Measured and simulation results show that the resulting filter offers a dual passband response; the higher passband is attributed to the dual-mode microstrip ring structure, whereas the lower passband is as a result of the embedded CSRR DGS structure. In addition, the results show that the position of the lower passband could be varied, to a certain extent, without affecting the position of the higher passband by applying higher fractal iteration levels to the inner split ring. These features, together with the compact size the proposed filter offers, make it suitable for use in a wide variety of dual-band communication applications. Measured results, carried out on filter prototypes, have been found in agreement with those theoretically predicted. Cambridge University Press and the European Microwave Association 2015-04 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/36183/1/A%20miniature%20fractal.pdf Alqaisy, Mushtaq and Chakrabraty, Chandan and Ali, Jawad and Alhawari, Adam Reda Hasan (2015) A miniature fractal-based dual-mode dual-band microstrip bandpass filter design. International Journal of Microwave and Wireless Technologies, 7 (2). pp. 127-133. ISSN 1759-0787; ESSN: 1759-0795 http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9609924&fileId=S1759078714000622 10.1017/S1759078714000622
spellingShingle Alqaisy, Mushtaq
Chakrabraty, Chandan
Ali, Jawad
Alhawari, Adam Reda Hasan
A miniature fractal-based dual-mode dual-band microstrip bandpass filter design
title A miniature fractal-based dual-mode dual-band microstrip bandpass filter design
title_full A miniature fractal-based dual-mode dual-band microstrip bandpass filter design
title_fullStr A miniature fractal-based dual-mode dual-band microstrip bandpass filter design
title_full_unstemmed A miniature fractal-based dual-mode dual-band microstrip bandpass filter design
title_short A miniature fractal-based dual-mode dual-band microstrip bandpass filter design
title_sort miniature fractal-based dual-mode dual-band microstrip bandpass filter design
url http://psasir.upm.edu.my/id/eprint/36183/
http://psasir.upm.edu.my/id/eprint/36183/
http://psasir.upm.edu.my/id/eprint/36183/
http://psasir.upm.edu.my/id/eprint/36183/1/A%20miniature%20fractal.pdf