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Rotatable Dual Band-Notched UWB/Triple-Band WLAN Reconfigurable Antenna

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3 Author(s)
Lotfi, P. ; Young Res. & Elite Club, Islamic Azad Univ., Ahar, Iran ; Azarmanesh, M. ; Soltani, S.

In this letter, a compact reconfigurable asymmetric coplanar strip (ACS)-fed monopole antenna with size of 14 × 16 mm2 that has a complementary reconfigurable performance with capability to operate in the ultrawideband (UWB) frequency from 3.2 to 11 GHz with two stopbands of 3.3-4.2 and 5-6 GHz and triple WLAN frequency bands of 2.4-2.9, 3.6-4.4, and 5-6 GHz is presented. The UWB antenna uses a simple rectangle patch with folded shape slit and stub as rejecting elements, and the mobile antenna uses an arc-shaped stub and inverted L-shaped stub as resonating elements. The performance agility and reconfigurable ability is achieved via a circular rotational motion of the patch. A simple clock stepper motor at the rear of the antenna is used to control the rotational part of the patch and activate the resonating elements. During the simulation, the driving motor effect has been considered. A good agreement is found between the simulated and the measured antenna properties. To the authors' awareness, a feature that the antenna is capable to cover two complementary bands is unique to this letter.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:12 )