TITLE:
Design of Reconfigurable Band Notches Antenna for Cognitive Radio Applications
AUTHORS:
Hicham Lalj, Hafid Griguer, M’hamed Drissi
KEYWORDS:
Metamaterials, Band-Stop Filter, Split Ring Resonator (SRR), Band Notches Antenna
JOURNAL NAME:
Wireless Engineering and Technology,
Vol.5 No.3,
July
30,
2014
ABSTRACT: In this paper, an antenna with
reconfigurable band notches, for cognitive radio applications, is proposed. The
antenna can be operated as ultra wideband, and is reconfigurable in terms of
the ability to select a notched band in the SRR resonant frequency. The reconfigurable
band notches are induced using a band-stop filter based on split-ring
resonators (SRRs), and are controlled using electronic switches mounted over
the SRRs. For this sake, the design of the band-stop filter is proposed. A
prototype of filter is fabricated and measured. The incorporation of a band-stop
filter, into a wideband antenna, is then looked into. The proposed antenna is
designed and simulated using Ansoft HFSS. A prototype of the antenna is
fabricated and measured. A good analogy between simulated and measured results
is obtained.