<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rafik, Addaci</style></author><author><style face="normal" font="default" size="100%">Tarek, Fortaki</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Miniature low profile UWB antenna: new techniques for bandwidth enhancement and radiation pattern stability, e-ISSN 1098-2760</style></title><secondary-title><style face="normal" font="default" size="100%">Microwave and Optical Technology LettersMicrowave And Optical Technology Letters</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2016</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">N°8</style></number><volume><style face="normal" font="default" size="100%">Volume 58</style></volume><pages><style face="normal" font="default" size="100%">pp 1808-1813</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">A miniature (30 × 10 mm2) efficient planar monopole antenna with stable radiation pattern for UWB applications (3.1-10.6 GHz) is proposed in this paper. These characteristics, wide bandwidth and radiation stability, are achieved by using original design solutions with maintaining a small size and good efficiency of the system. Based on modified ground plane and loop feeding structure, the first design solution consist to propose a simple technique which not requires any discrete additional elements or circuits and does not affect the overall dimensions of the basic structure. This technique enhances the (-6 dB) bandwidth of the planar monopole antenna by approximately 50% compared to the basic structure while maintaining the same dimension (30 × 10 mm2). The optimized proposed antenna presents a large bandwidth, good radiation stability, total efficiency higher than 70% over the entire band and small size (30 × 10 mm2) which will enable to use it in different UWB applications. In the second step, two L slots are added in the printed circuit board of the proposed UWB antenna to reach a good stability of the radiation pattern on the overall desired band.</style></abstract></record></records></xml>