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To design reactively loaded antenna arrays, a basic design methodology is proposed that combines superimposing the electric field of each antenna element along with multiobjective optimization. The design methodology is demonstrated in a three-element, reactively loaded, symmetrical, compact Yagi-Uda antenna. Because the antenna is symmetrical, the reactive loads can be used to steer the maximum gain of the antenna in two directions. The antenna maintains a high absolute gain and low VSWR over a 10% fractional bandwidth with an element spacing of 0.053λ. The antenna requires a simple matching circuit to maximize the impedance match of the antenna.
Published in:
Antennas and Wireless Propagation Letters, IEEE
(Volume:11
)
Date of Publication: 2012
- Page(s):
- 795 - 798
- ISSN :
- 1536-1225
- INSPEC Accession Number:
- 12877012
- Digital Object Identifier :
- 10.1109/LAWP.2012.2207873
- Product Type:
- Journals & Magazines
- Date of Publication :
- 10 July 2012
- Date of Current Version :
- 19 July 2012
- Issue Date :
- 2012
- Sponsored by :
- IEEE Antennas and Propagation Society
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