A Compact Multiband Notch UWB Antenna

A simple and a compact coplanar waveguide (CPW) ultrawide band (UWB) antenna is presented. Multiband stop function is achieved by two different types of band stop resonators. One is a tilted square spiral slot resonator of different size and length etched on the patch and the other is a coupled reso...

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Main Authors: K. Kumar, N. Gunasekaran
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:International Journal of Antennas and Propagation
Online Access:http://dx.doi.org/10.1155/2012/197945
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author K. Kumar
N. Gunasekaran
author_facet K. Kumar
N. Gunasekaran
author_sort K. Kumar
collection DOAJ
description A simple and a compact coplanar waveguide (CPW) ultrawide band (UWB) antenna is presented. Multiband stop function is achieved by two different types of band stop resonators. One is a tilted square spiral slot resonator of different size and length etched on the patch and the other is a coupled resonator etched on the ground plane. These resonators provide considerable increase in notch bandwidth at the stop bands. The proposed antenna has a total size of 18×20.3 mm2. The designed antenna achieves pass band performance at 1.8–2.1 GHz (15.38%), 3.0–3.2 GHz (6.45%), 4.4–4.7 GHz (6.59%), 6.3-6.4 GHz (1.57%), and 8–11.2 GHz (33.33%) where VSWR <2 and four stop bands at 2.4–2.8 GHz (15.38%), 3.2–3.7 GHz (14.49%), 5.5–6 GHz (8.69%), and 6.5–7 GHz (7.40%) where VSWR is equal to 10. The antenna has a peak gain of 3.8 dBi. The measured results show that the antenna achieves good impedance matching and consistent radiation patterns over an operating bandwidth.
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spelling doaj-art-965688aa0d984b78bcdca241cfbfb6f42025-08-20T03:37:28ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772012-01-01201210.1155/2012/197945197945A Compact Multiband Notch UWB AntennaK. Kumar0N. Gunasekaran1Department of Electronics and Communication Engineering, College of Engineering, Guindy, Anna University, Chennai 600025, IndiaRajalakshmi Engineering College, Thandalam, Chennai 602105, IndiaA simple and a compact coplanar waveguide (CPW) ultrawide band (UWB) antenna is presented. Multiband stop function is achieved by two different types of band stop resonators. One is a tilted square spiral slot resonator of different size and length etched on the patch and the other is a coupled resonator etched on the ground plane. These resonators provide considerable increase in notch bandwidth at the stop bands. The proposed antenna has a total size of 18×20.3 mm2. The designed antenna achieves pass band performance at 1.8–2.1 GHz (15.38%), 3.0–3.2 GHz (6.45%), 4.4–4.7 GHz (6.59%), 6.3-6.4 GHz (1.57%), and 8–11.2 GHz (33.33%) where VSWR <2 and four stop bands at 2.4–2.8 GHz (15.38%), 3.2–3.7 GHz (14.49%), 5.5–6 GHz (8.69%), and 6.5–7 GHz (7.40%) where VSWR is equal to 10. The antenna has a peak gain of 3.8 dBi. The measured results show that the antenna achieves good impedance matching and consistent radiation patterns over an operating bandwidth.http://dx.doi.org/10.1155/2012/197945
spellingShingle K. Kumar
N. Gunasekaran
A Compact Multiband Notch UWB Antenna
International Journal of Antennas and Propagation
title A Compact Multiband Notch UWB Antenna
title_full A Compact Multiband Notch UWB Antenna
title_fullStr A Compact Multiband Notch UWB Antenna
title_full_unstemmed A Compact Multiband Notch UWB Antenna
title_short A Compact Multiband Notch UWB Antenna
title_sort compact multiband notch uwb antenna
url http://dx.doi.org/10.1155/2012/197945
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