Application
MODEL 3148 LOG-PERIODIC DIPOLE ARRAY ANTENNA
6
© EMC TEST SYSTEMS, L.P. – SEPTEMBER 2002
REV C – PN 399239
Actual transmitted field strength should be verified using an
ETS-Lindgren Model HI-6005 Electric Field Probe or equivalent.
For IEC/EN 31000-4-3 type testing, the antenna tip can be placed
at any distance between 1 and 3 meters from the EUT as long as
the front face plane is illuminated according to the –0, +6 dB
uniform field specifications. It is usually necessary to place RF
absorbing material between the EUT and antenna to suppress
ground plane reflection to ensure the field uniformly, or conduct
the immunity test in a fully-lined anechoic room. In general, closer
distances require less power to create a given field strength.
