Optimization and Modeling of Sparse Conformal Retrodirective Array

Author

Sun, Jim S. ; Goshi, Darren S. ; Itoh, Tatsuo

Author_Institution

Electr. Eng. Dept., Univ. of California, Los Angeles, CA, USA

Volume

58

Issue

3

fYear

2010

fDate

3/1/2010 12:00:00 AM

Firstpage

977

Lastpage

981

Abstract

Conformal scanning arrays are important for scanning ranges beyond ??90 degrees and the retrodirective array (RDA) is known as a promising candidate for this application. We discuss the optimization of a previously realized conformal sparse RDA by means of the genetic algorithm, and the RDA numerical model that is used in this approach. In particular, we improve the numerical model of the RDA by identifying practical factors that previous model failed to account for. The impact of each practical factor on the RDA monostatic pattern is visualized, and the improved model provides much better prediction of the monostatic pattern.

Keywords

antenna arrays; antenna radiation patterns; antenna theory; conformal antennas; directive antennas; genetic algorithms; RDA monostatic pattern; conformal scanning arrays; genetic algorithm; monostatic pattern prediction; sparse conformal retrodirective array modelling; Antenna arrays; Digital signal processing; Genetic algorithms; Numerical models; Phased arrays; Predictive models; RF signals; Sun; Surface fitting; Unmanned aerial vehicles; Visualization; Conformal array; genetic algorithm (GA); retrodirective array; thinned array;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2009.2039291

Filename

5361411