Design and Testing of a Multifrequency Antenna With a Reconfigurable Feed

The implementation of a frequency-reconfigurable antenna with the use of a moving feeding technique is described in this letter. A flexible coaxial feed is attached to the main microstripline feed of a perturbed Sierpinski monopole gasket, and it slides with the help of computer-controlled motor mec...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2014, Vol.13, p.730-733
Main Authors: Kumar, M. M. Ajith, Patnaik, Amalendu, Christodoulou, Christos G.
Format: Article
Language:English
Subjects:
Antenna feeds
Antenna measurements
Antennas
Computer simulation
Design engineering
Feasibility
Feeding
Fractal antenna
Gaskets
Microstrip
Monopoles
Motors
reconfigurable antenna
Reconfigurable control systems
Resonant frequency
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Summary:The implementation of a frequency-reconfigurable antenna with the use of a moving feeding technique is described in this letter. A flexible coaxial feed is attached to the main microstripline feed of a perturbed Sierpinski monopole gasket, and it slides with the help of computer-controlled motor mechanism. Single and multiple operational frequencies are observed during the movement of the feed. The antenna and the reconfigurable system were designed, implemented, and experimentally verified to show the feasibility of the proposed concept. The experimentally verified response of the antenna is also compared to full-wave simulation results.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2014.2315433