volume | PIER Journals

Abstract

A compact planar reconfigurable triple band-notched UWB Microstrip antenna is proposed in this paper for UWB applications. A band rejection at ITU 8-GHz is generated by inserting an inverted U-shaped metallic strip at the slotted ground plane. Moreover, by cutting two slots on radiating patch, the second rejection at 3.5 GHz for WiMAX and the third rejection at 5.5 GHz for WLAN application are generated. Then, by embedding two (PIN) diodes along the patch slots, switchable dual or single band-notched behavior is added to the antenna performance. The simulated and measured results show that the antenna can operate in a wider bandwidth from 3.1 GHz to 11 GHz, and it has a good omnidirectional radiation pattern with stable gain. Furthermore, the designed antenna has a simple structure and compact size of 20×20 mm². The proposed antenna can use the full potential of UWB frequency range with reconfigurable band-notched behavior at 3.5, 5.5, 8.1 GHz to avoid interference with WiMAX, WLAN, ITU systems respectively.

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Dr. Wael Abd Ellatif Ali

Dr. Rana M. A. Moniem