A Sparsely Designed Retrodirective Transponder

Retrodirective arrays have shown great potential for use as wireless transponders due to their automatic source tracking ability. A retrodirective transponder based on a sparse array is presented. The architecture uses a sparse array design to reduce the amount of elements, and thus circuitry requir...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2006, Vol.5 (1), p.339-342
Main Authors: Goshi, D.S., Leong, K.M.K.H., Itoh, T.
Format: Article
Language:English
Subjects:
Antenna arrays
Apertures
Circuits
Costs
Genetic algorithms
Passive RFID tags
Phased arrays
Radio frequency
Radiofrequency identification
retrodirective arrays
sparse arrays
Transponders
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Summary:Retrodirective arrays have shown great potential for use as wireless transponders due to their automatic source tracking ability. A retrodirective transponder based on a sparse array is presented. The architecture uses a sparse array design to reduce the amount of elements, and thus circuitry required. A genetic algorithm is used to determine the optimal element positions in the array. The sparse architecture is compared with the uniform array architecture. Measured results verify the sparse concept as well as retrodirectivity
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2006.878907