Title :
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
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;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6710965
