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  4. Frequency, Radiation Pattern and Polarization Reconfigurable Antenna Using a Parasitic Pixel Layer
 
research article

Frequency, Radiation Pattern and Polarization Reconfigurable Antenna Using a Parasitic Pixel Layer

Rodrigo, Daniel  
•
Cetiner, Bedri A.
•
Jofre, Lluis
2014
Ieee Transactions On Antennas And Propagation

This communication presents a reconfigurable antenna capable of independently reconfiguring the operating frequency, radiation pattern and polarization. A switched grid of small metallic patches, known as pixel surface, is used as a parasitic layer to provide reconfiguration capabilities to existing antennas acting as driven element. The parasitic pixel layer presents advantages such as low profile, integrability and cost-effective fabrication. A fully operational prototype has been designed, fabricated and its compound reconfiguration capabilities have been characterized. The prototype combines a patch antenna and a parasitic pixel surface consisting of 6 x 6 pixels, with an overall size of 0.6 lambda x 0.6 lambda and 60 PIN-diode switches. The antenna simultaneously tunes its operation frequency over a 25% frequency range, steers the radiation beam over +/- 30 degrees in E and H-planes, and switches between four different polarizations ((x) over cap, (y) over cap, LHCP, RHCP). The average antenna gain among the different parameter combinations is 4 dB, reaching 6-7 dB for the most advantageous combinations. The distance between the driven and the parasitic layers determines the tradeoff between frequency tuning range (12% to 25%) and radiation efficiency (45% to 55%).

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Type
research article
DOI
10.1109/Tap.2014.2314464
Web of Science ID

WOS:000337122100063

Author(s)
Rodrigo, Daniel  
Cetiner, Bedri A.
Jofre, Lluis
Date Issued

2014

Publisher

Ieee-Inst Electrical Electronics Engineers Inc

Published in
Ieee Transactions On Antennas And Propagation
Volume

62

Issue

6

Start page

3422

End page

3427

Subjects

Reconfigurable antennas

•

pixel antennas

•

compound reconfiguration

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

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Available on Infoscience
August 29, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/106509
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