Atec Com-Power-AC220 User Manual
Combilog antenna, Description, Features
A-7
Combilog Antenna
AC-213, AC-220
Description
The Combilog antennas are broadband antennas de-
signed to operate in the 30 MHz - 2000 MHz fre-
quency range for electromagnetic compatibility test-
ing. The Combilog antenna combines the electrical
properties of a biconical antenna and a log periodic
antenna.
Two Combilog antenna models are available. They are
AC-213 and AC-220. The model AC-213 has a fre-
quency range of 30 MHz -1300 MHz. The model AC-
220 has a frequency range of 30 MHz to 2000 MHz.
The antenna is shipped with an insulated mounting
tube. This tube can also be adapted for mounting the
antenna to an antenna mast or tripod. The antenna
also has a polarization adjustment joint . The polar-
ization of the antenna can be easily changed (Vertical
or Horizontal) during testing by using this joint.
The elements are constructed using aluminum with
corrosion resistant conductive coating. The rear tri-
angle elements can be removed for storage and trans-
portation.
Features
Broadband: 30 MHz - 2000 MHz
Minimizes antenna switching
Transmit and receive capabilities
Individual calibration
Two year warranty
Application
The Combilog antennas are designed for emissions
and susceptibility testing to verify compliance to FCC,
IEC, CISPR, FAA and MIL-STD specifications.
The main advantage of a Combilog antenna is that it
covers the frequency range of the Biconical and Log
Periodic antenna. This eliminates antenna switching
(typically at 300 MHz) and allows continuous sweep
measurement without a frequency band break. The
broadband matching network located in the rear im-
proves antenna response at the lower frequencies.
For susceptibility testing the Combilog antenna can
be used in the in a shielded room for generating elec-
tromagnetic fields. It can handle up to 500 Watts in-
put at its terminals.
Each Combilog antenna is individually calibrated. The
calibration data will be shipped with each antenna.
During radiated emissions measurement, the field
strength (dBV/m) is calculated for frequency selected,
by adding the antenna factor dB/m to the output mea-
surement (dBV) displayed by the EMI meter.
Com-Power Corporation
(949) 587 - 9800
www. com-power.com