A novel radiating structure for close range radiated immunity measurements

TY - GEN

T1 - A novel radiating structure for close range radiated immunity measurements

AU - Cahill, B J

AU - Marvin, A C

AU - Dawson, J F

PY - 1999

Y1 - 1999

N2 - A conformal test cell has been constructed and its performance measured as an EM immunity monitor. A compact ferrite lined cell of 1m(3) volume has been designed using a broadband planar antenna as the source instead of a septum as is used in most test cells of this size. The degredation in isolation due to the close proximity of the EUT and antenna is compensated for by embedding the antenna in a lossy dielectric material. The complex material permittivity has the effect of increasing the electrical length separating the two and the imaginary component int-reduces some loss into the system further improving the antenna isolation. Studies are presented of the interaction between the material and the antenna and the resulting performance of the antenna in a cell as an immunity measuring device. The field uniformity, power requirement to generate 10 V/m modulated field and the current distribution on a metallic EUT are considered.

AB - A conformal test cell has been constructed and its performance measured as an EM immunity monitor. A compact ferrite lined cell of 1m(3) volume has been designed using a broadband planar antenna as the source instead of a septum as is used in most test cells of this size. The degredation in isolation due to the close proximity of the EUT and antenna is compensated for by embedding the antenna in a lossy dielectric material. The complex material permittivity has the effect of increasing the electrical length separating the two and the imaginary component int-reduces some loss into the system further improving the antenna isolation. Studies are presented of the interaction between the material and the antenna and the resulting performance of the antenna in a cell as an immunity measuring device. The field uniformity, power requirement to generate 10 V/m modulated field and the current distribution on a metallic EUT are considered.

M3 - Conference contribution

SN - 0-85296-716-0

SP - 168

EP - 172

BT - EMC YORK 99: INTERNATIONAL CONFERENCE AND EXHIBITION ON ELECTROMAGNETIC COMPATIBILITY

PB - INST ELECTRICAL ENGINEERS INSPEC INC

CY - EDISON

T2 - IEE International Conference and Exhibition on Electromagnetic Compatibility

Y2 - 12 July 1999 through 13 July 1999

ER -