Title :
An imaging system for EM emitting sources using a 6-port correlator
Author :
Hirayama, Hiroshi ; Yakabe, Toshiyuki ; Kami, Yoshio
Author_Institution :
Univ. of Electro-Communications, Tokyo, Japan
Abstract :
Fourier optics based imaging system for EMI sources is discussed. It is required to decrease undesired emission in order to prevent EMI. To investigate this problem, a visualization of EM emitting fields is very useful. In this paper, we propose a passive imaging system of EM emitting fields based on Fourier-optics. The complex amplitude values of diffracted fields on an entrance pupil are acquired by using a 6-port correlator which acts as an interferometer. Measured EM fields are then processed by a computer and an image is retrieved using Fresnel inverse transform
Keywords :
Fourier transform optics; electromagnetic interference; interferometers; microwave imaging; optical correlation; 6-port correlator; EM emitting fields visualization; EM emitting sources; EM fields; Fourier optics based imaging system; Fresnel inverse transform; interferometer; microwave passive imaging system; undesired emission; Antenna measurements; Correlators; Diffraction; Frequency; Image retrieval; Optical imaging; Optical interferometry; Optical signal processing; Probes; Stimulated emission;
Conference_Titel :
Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-6569-0
DOI :
10.1109/ISEMC.2001.950667
