Agile Radiation-Pattern Antenna Based on Active Cylindrical Frequency Selective Surfaces

The design and implementation of an agile antenna at 2.45 GHz based on a grid of discontinuous strips incorporated with active elements on a cylindrical frequency selective surface (FSS) are presented. By benefiting from the feature introduced in the proposed surface, a reconfigurable stopband scree...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2010, Vol.9, p.387-388
Main Authors: Jazi, Mahmoud Niroo, Denidni, Tayeb A
Format: Article
Language:English
Subjects:
Agile radiation pattern
Antenna measurements
Antenna radiation patterns
Antennas and propagation
Azimuth
Bandwidth
Dipole antennas
Electromagnetic radiation
Frequency selective surfaces
Metamaterials
Periodic structures
reconfigurable cylindrical active frequency selective surface
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Summary:The design and implementation of an agile antenna at 2.45 GHz based on a grid of discontinuous strips incorporated with active elements on a cylindrical frequency selective surface (FSS) are presented. By benefiting from the feature introduced in the proposed surface, a reconfigurable stopband screen is created to emulate a cylindrical electromagnetic transparent/opaque surface. This surface is used to implement a sweeping-beam agile antenna covering all azimuth angles. The measured results confirm the concept of the proposed configuration. This antenna can effectively operate over a bandwidth of more than 200 MHz. Furthermore, the achieved back-lobe level for the directional radiation pattern is about -13 dB at the frequency of 2.55 GHz.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2010.2049090