In this paper, a novel design for compact
frequency reconfigurable triple slot antenna based on
rejected triple band stop functions is demonstrated.
An Ultra-Wide Band (UWB) antenna is designed to
operate from 3.3 to 12 GHz and printed on a (30 mm
× 35 mm) FR4 substrate with permittivity of 4.4 and
a thickness of 1.6 mm and also printed on a
Rogers4003C substrate with permittivity of 3.38 and
a thickness of 1.524 mm. The antenna comprises an
inverted double U-slot and an H-Slot on a metallic
patch and U-Slot in the feedline to exhibit a triple
band-notch functions for the WiMAX band (3.2-3.7
GHz), WLAN-band (5.2-6.3 GHz) and C-band (9-10.8
GHz). To generate a reconfigurable band-stop
antenna, the multi Strips (0.4mm×0.5 mm) within the
embedded structures are used in the patch plane and
feedline. By changing the ON/OFF conditions of the
Strips, the antenna can operate in single, dual, and
triple-band mode. HFSS simulator program is used to
design and simulate results for the proposed antenna.
The simulated bandwidth with return loss < -10 dB is
(3-12) GHz. The proposed antenna is fabricated and
measured. The Simulated and experimental results
are compared and found to be in good agreement. |
