Pilot Tone Actuated Antenna Array Pattern Reconfiguration

A new strategy for remote reconfiguration of an antenna array far field radiation pattern is described. The scheme uses a pilot tone co-transmitted with a carrier signal from a location distant from that of a receive antenna array whose far field pattern is to be reconfigured. By mixing the co-trans...

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Bibliographic Details
Published inIEEE transactions on antennas and propagation Vol. 62; no. 2; pp. 629 - 633
Main Authors Fusco, Vincent, Zelenchuk, Dmitry E., Buchanan, Neil B.
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.02.2014
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Antenna array
Antenna arrays
Antennas
Applied sciences
Arrays
Beams (radiation)
Carriers
Delays
Educational institutions
Exact sciences and technology
Far fields
far-field pattern control
IF beam-steering
mixing
Pilots
Radio frequency
Radiocommunications
Receiving antennas
Reconfiguration
self-focussing
Telecommunications
Telecommunications and information theory
Tuning
Microstrip antenna arrays
far-field pattern control
mixing
Printed antenna
self-focussing
Far field
Timbre
Beam steering
Antenna factor
IF beam-steering
Tuning frequency
Radiation pattern
Reconfigurable architectures
Localization
Receiving antenna
Antenna array
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Summary:A new strategy for remote reconfiguration of an antenna array far field radiation pattern is described. The scheme uses a pilot tone co-transmitted with a carrier signal from a location distant from that of a receive antenna array whose far field pattern is to be reconfigured. By mixing the co-transmitted signals locally at each antenna element in the array an IF signal is formed which defines an equivalent array spacing that can be made variable by tuning the frequency of the pilot tone with respect to the RF carrier. This makes the antenna array factor hence far field spatial characteristic reconfigurable on receive. For a 10 × 1 microstrip patch element array we show that the receive pattern can be made to vary from 35 to 10 degrees half power beam width as the difference frequency between the pilot and the carrier at 2.45 GHz varies between 10 MHz and 500 MHz carrier.
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ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2013.2290292