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Active and Passive Electronic Components
Volume 2008 (2008), Article ID 816969, 4 pages
Research Article

Isotropic Broadband E-Field Probe

1Research Institute for Technical Physics and Materials Science, P.O. Box 49, H-1525 Budapest, Hungary
2Bonn Hungary Electronics Ltd., P.O. Box 164, 1325 Budapest, Hungary
3LINEARLAB Ltd., Budapest Fóti út 56, 1047 Budapest, Hungary

Received 30 November 2007; Accepted 11 March 2008

Academic Editor: T. Kalkur

Copyright © 2008 Béla Szentpáli et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An E-field probe has been developed for EMC immunity tests performed in closed space. The leads are flexible resistive transmission lines. Their influence on the field distribution is negligible. The probe has an isotropic reception from 100 MHz to 18 GHz; the sensitivity is in the 3 V/m–10 V/m range. The device is an accessory of the EMC test chamber. The readout of the field magnitude is carried out by personal computer, which fulfils also the required corrections of the raw data.