Title :
Compensation of element pattern in 3-element array sensor for estimation of electromagnetic source location
Author :
Awai, Kyosuke ; Aizawa, Daisuke ; Taira, K. ; Sawaya, Kunio ; Sato, Risaburo
Author_Institution :
Sendai EMC Res. Center, Japan
Abstract :
We present a measurement technique using equally spaced dipole sensors to estimate undesired electromagnetic source location emitted from electronic equipment in a short time. A compensation method for an array element pattern is also proposed. This 3-element array sensor yields experimental values of amplitude and phase differences between the received voltage of each array element and those of a single sensor placed at the same position of each array element of array sensor for cases with array spacing of 0.5 and 1 wavelengths. In addition, the received voltage after compensation using experimental data agrees with the received voltage by scanning a single sensor within 0.2dB in amplitude and 1.6° in phase.
Keywords :
array signal processing; dipole antenna arrays; electromagnetic compatibility; electromagnetic coupling; magnetic field measurement; method of moments; 3-element array sensor; amplitude difference; array spacing; compensation factor; compensation method; electromagnetic source location estimation; electronic equipment; element pattern compensation; equally spaced dipole sensors; measurement technique; mutual coupling; phase difference; received voltage; Electromagnetic measurements; Electronic equipment; Geometry; Mutual coupling; Phased arrays; Position measurement; Sensor arrays; Sensor systems; Voltage; Wavelength measurement;
Conference_Titel :
Electromagnetic Compatibility, 2003. EMC '03. 2003 IEEE International Symposium on
Print_ISBN :
0-7803-7779-6
DOI :
10.1109/ICSMC2.2003.1428212
