Abstract
A compact rectangular patch wide band antenna is proposed in this paper which is designed on a planar FR4 (lossy) substrate of dielectric constant 4.4 and having a very compact size of dimensions 12 and 47 mm. To achieve wide band characteristics two slots are cut in ground plane and fed by microstrip feed technique. The designed antenna can operate in two bands to cover most of allocated ISM band and ultra wide band (UWB) in which first band covers 2.2459–2.7207 GHz and second is from 5.2698 to 10.863 GHz. The proposed antenna has been designed with the help of CST software and from results it is clear that proposed antenna has good performance with respect to bandwidth and radiation pattern. It has a simple structure and it is sufficiently small in size so can be easily used in a mobile phone or a USB dongle. This antenna is applicable for Bluetooth, WiMAX, military and medical applications.
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