Genetically-engineered meanderline twist reflector

Author

Han, Kyu Y. ; Lai, B.A.

Author_Institution

Dept. of Electr. & Comput. Eng., Florida Inst. of Technol., Melbourne, FL

fYear

2008

fDate

5-11 July 2008

Firstpage

1

Lastpage

4

Abstract

A meanderline polarization twist reflector designed through genetic optimization is presented. Modeled and measured reflection response of electric field components parallel and perpendicular to the meanderline axis are reported, with excellent agreement. Polarization conversion efficiency greater than 98% is demonstrated over 18% bandwidth at 12.9 GHz for a meanderline on substrate of thickness t <0.10lambda_o. Dual-band performance is revealed by considering insertion loss of co-polarized reflection for an incident electric field oriented 45deg from the meanderline axis. Parameter-dependent sensitivity at the two resonant frequencies is reported, providing a means for independent control of the lower and upper frequency response.

Keywords

broadband antennas; electromagnetic wave polarisation; genetic algorithms; microwave antennas; reflector antennas; frequency 12.9 GHz; genetic algorithm optimization; genetically-engineered meanderline; low-profile broadband polarization; twist reflector; Bandwidth; Design optimization; Dual band; Electric variables measurement; Genetics; Insertion loss; Performance loss; Polarization; Reflection; Resonant frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE

Conference_Location

San Diego, CA

Print_ISBN

978-1-4244-2041-4

Electronic_ISBN

978-1-4244-2042-1

Type

conf

DOI

10.1109/APS.2008.4619113

Filename

4619113