Design and Optimization of ESPAR Antennas via Impedance Measurements and a Genetic Algorithm [Antenna Designer´s Notebook]

Author

Mitilineos, Stelios A. ; Mougiakos, Konstantinos S. ; Thomopoulos, Stelios C.A.

Author_Institution

Nat. Center for Sci. Res. Demokritos, Inst. of Inf. & Telecommun., Athens, Greece

Volume

51

Issue

2

fYear

2009

fDate

4/1/2009 12:00:00 AM

Firstpage

118

Lastpage

123

Abstract

A method for the design of electronically steerable passive array radiator (ESPAR) antennas is proposed herein, based on impedance-matrix measurements and a genetic algorithm. The proposed technique is best suited for cases where commercial elements are used as building blocks for ESPAR development, since in such cases the conventional numerically based techniques used in the literature may not be applicable. An emulated ESPAR design and respective results are presented. They demonstrate the applicability and performance of the proposed technique, as well as its consistency with results derived from a commercially available electromagnetic simulator.

Keywords

antenna arrays; antenna theory; beam steering; electric impedance measurement; genetic algorithms; ESPAR antennas; antenna design; electromagnetic simulator; electronically steerable passive array radiator antennas; genetic algorithms; impedance-matrix measurements; optimization; Adaptive arrays; Algorithm design and analysis; Antenna arrays; Antenna measurements; Antennas and propagation; Design optimization; Genetic algorithms; Impedance measurement; Loaded antennas; Transmitting antennas; Electronically steerable passive array radiator (ESPAR); antenna arrays; beam steering; genetic algorithms; impedance matrix; impedance matrix measurements; impedance measurements;

fLanguage

English

Journal_Title

Antennas and Propagation Magazine, IEEE

Publisher

ieee

ISSN

1045-9243

Type

jour

DOI

10.1109/MAP.2009.5162029

Filename

5162029