Impedance modulation patterns for artificial-impedance-surface antennas

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 q...

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Bibliographic Details
Published in2013 IEEE Antennas and Propagation Society International Symposium (APSURSI) pp. 2339 - 2340
Main Author Gregoire, Daniel J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2013
Subjects
Antennas and propagation
Equations
Impedance
Modulation
Surface impedance
Surface waves
Tensile stress
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Summary: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.
ISSN:1522-3965
1947-1491
DOI:10.1109/APS.2013.6711828