## Abstract In this article, a novel planar ultra‐wideband (UWB) antenna array based on four identical UWB antenna elements for UWB applications is presented. The proposed antenna array yields an impedance bandwidth of 3.1–10.6 GHz with VSWR <2. Over the entire bandwidths, it has constant high gain
Time-domain characterization of antennas in metamaterial media
✍ Scribed by Zbyněk Raida; Jaroslav Láčík; Jiří Horák; Petr Chmela; Lukáš Oliva
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 104 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
In this article, a wire dipole embedded within a double‐negative medium is numerically analyzed using the time‐domain integral equation method. The antenna is excited by a narrow Gaussian pulse to obtain responses within a wider frequency band. The transient current distribution on the antenna is processed so as to obtain a time‐domain radiation pattern and to compute the gain. Time‐domain parameters are obtained by calculating mean‐value quantities, which are then compared with the conventional frequency‐domain parameters, using Parseval's theorem. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48:2530–2532, 2006; Published online in Wiley InterScience (www.interscience.wiley.com).DOI 10.1002/mop.22007
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