Title :
Radiation pattern of a PCB based probe intended for near field measurements
Author :
Quilez, Marcos ; Silva, Ferran ; Martin, Antoni ; Fontanilles, Joan ; Riu, Pere
Author_Institution :
Dept. d´´Enginyeria Electron., Univ. Politecnica de Catalunya, Barcelona, Spain
Abstract :
In some situations, the OATS (open air test site) far field condition cannot be satisfied, and near field measurements must be performed. The EMI environment inside a car is one of these situations, where only near field probes can be used for measurement. We developed a near field probe that can measure the electric and magnetic fields simultaneously. The probe was built on a PCB (printed circuit board) along with the electronics needed to transmit the signals through an analog optical link. Calibration of the probe was performed in a TEM cell. The results for the sensitivity as a function of the frequency and the radiation pattern are presented
Keywords :
antenna radiation patterns; automotive electronics; calibration; dipole antennas; electric field measurement; electromagnetic interference; loop antennas; magnetic field measurement; printed circuits; test equipment; 10 to 200 MHz; EMI environment; OATS; PCB based probe; TEM cell; analog optical link; calibration; car; electric fields; frequency; magnetic fields; near field measurements; open air test site; printed circuit board; radiation pattern; sensitivity; Calibration; Electric variables measurement; Electromagnetic interference; Magnetic field measurement; Open area test sites; Optical fiber communication; Performance evaluation; Printed circuits; Probes; Testing;
Conference_Titel :
Electromagnetic Compatibility, 1999 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5057-X
DOI :
10.1109/ISEMC.1999.810169
