Array-Fed Partially Reflective Surface Antenna With Independent Scanning and Beamwidth Dynamic Control

Array-Fed Partially Reflective Surface Antenna With Independent Scanning and Beamwidth Dynamic Control

In this communication we present a concept of a partially reflective surface (PRS) antenna capable of independent beam-scanning and beamwidth dynamic control. The beamwidth is controlled by reconfiguring the PRS reflectivity via embedded varactor diodes, while the beam is steered by using a small ph...

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Veröffentlicht in:IEEE transactions on antennas and propagation 2014-01, Vol.62 (1), p.446-449
Hauptverfasser: Debogovic, Tomislav, Perruisseau-Carrier, Julien
Format: Artikel
Sprache:eng
Schlagworte:
Antenna arrays
Antenna measurements
Antennas
Applied sciences
Arrays
Beam-scanning
beamwidth
Exact sciences and technology
Fabry-Pérot cavity
PRS antenna
Radiocommunications
reconfigurable antenna
Reflectivity
Reflector antennas
Telecommunications
Telecommunications and information theory
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Beschreibung
Zusammenfassung:In this communication we present a concept of a partially reflective surface (PRS) antenna capable of independent beam-scanning and beamwidth dynamic control. The beamwidth is controlled by reconfiguring the PRS reflectivity via embedded varactor diodes, while the beam is steered by using a small phased array in the H-plane as a source antenna exciting the Fabry-Pérot cavity. A fully operational prototype is fabricated and measured upon reconfiguration, demonstrating the viability of the concept and good agreement between simulated and measured results. The achieved beamwidth variation is from 18.7° to 22.4°, with the scanning range of 15° and 20° for the narrowest and the widest beamwidth, respectively.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2013.2287018