Wavevector mapping for antenna emission by Fourier transform of complex electrooptic images

Author

Tsuchiya, Masahiro ; Shiozawa, Takahiro

Author_Institution

Nat. Inst. of Inf. & Commun. Technol., Koganei, Japan

fYear

2013

fDate

7-13 July 2013

Firstpage

610

Lastpage

611

Abstract

A unique approach has been proposed and demonstrated for experimental analyses of electromagnetic emission from planar antennas; their emission wavevectors are mapped in a wavenumber space. The proposed method consists of (a) the live electrooptic imaging technique visualizing their near fields in real time and (b) the two-dimensional Fourier transform of complex electrooptic images providing power spectra of emission. A proof-of-principle demonstration has been performed successfully for an 18-GHz wave emitted from a 2×2 patch array and its manipulation by dielectric loading.

Keywords

Fourier transforms; electro-optical devices; planar antennas; antenna emission; complex electrooptic images; dielectric loading; electromagnetic emission; frequency 18 GHz; live electrooptic imaging technique; planar antennas; proof-of-principle demonstration; two-dimensional Fourier transform; wavenumber space; wavevector mapping; Antennas; Arrays; Dielectrics; Electromagnetic scattering; Electrooptical waveguides; Real-time systems; Visualization;

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.2013.6710965

Filename

6710965