Impedance modulation patterns for artificial-impedance-surface antennas

Author

Gregoire, D.J.

Author_Institution

Appl. Electromagn. Lab., HRL Labs., LLC, Malibu, CA, USA

fYear

2013

fDate

7-13 July 2013

Firstpage

2339

Lastpage

2340

Abstract

Artificial impedance surface antennas (AISAs) radiate by leaking surface waves from a spatially-modulated artificial impedance surface (AIS) whose modulation is designed to produce a preferred radiation pattern and polarization. Using the AISA radiation integral, a simple equation is obtained that quickly computes the modulation pattern for an AISA with arbitrary radiation angle and polarization. The versatility of that equation is demonstrated with examples that show how to design various linearly and circularly-polarized AISAs with tensor or scalar modulation.

Keywords

antenna radiation patterns; modulation; polarisation; AISA radiation integral; artificial-impedance-surface antennas; circularly-polarized AISA; impedance modulation patterns; linearly circularly-polarized AISA; polarization; radiation pattern; scalar modulation; spatially-modulated artificial impedance surface; surface waves; tensor modulation; Antennas and propagation; Equations; Impedance; Modulation; Surface impedance; Surface waves; Tensile stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE

Conference_Location

Orlando, FL

ISSN

1522-3965

Print_ISBN

978-1-4673-5315-1

Type

conf

DOI

10.1109/APS.2013.6711828

Filename

6711828