Title :
Experimental study on compensation of element pattern in array sensor
Author :
Awai, Kyosuke ; Aizawa, Daisuke ; Taira, Kazumasa ; Sawaya, Kunio
Author_Institution :
Sendai EMC Res. Center, Telecommun. Advancement Organ. of Japan, Miyagi, Japan
Abstract :
A measurement technique by using equally spaced dipole sensors is presented to estimate undesired electromagnetic source location emitted from electronic equipment in a short time. A compensation method for array element pattern is also proposed. Experimental values of the difference of the amplitude and phase between the received voltage of each array element and that of a single sensor placed at the same position of each array element of array sensor are obtained for the cases of 3-element and 5-element array sensors with the array spacing of 0.5 wavelength and 1 wavelength. It is also shown that the received voltage after compensation using experimental data agrees with the received voltage by scanning a single sensor within 0.4 dB in amplitude and 2.4 degrees in phase.
Keywords :
antenna arrays; antenna radiation patterns; array signal processing; electromagnetic waves; 0.4 dB; 3-element array sensors; 5-element array sensors; EM fields; array element pattern; array sensor; compensation factor; electromagnetic source location; electromagnetic waves; electronic equipment; equally spaced dipole sensors; measurement technique; mutual coupling; received voltage; Electronic equipment; Geometry; Measurement techniques; Mutual coupling; Position measurement; Radio frequency; Sensor arrays; Sensor systems; Switches; Voltage;
Conference_Titel :
Electromagnetic Compatibility, 2003 IEEE International Symposium on
Print_ISBN :
0-7803-7835-0
DOI :
10.1109/ISEMC.2003.1236621
