160 School House Road, Souderton, PA 18964-9990 USA
Phone 215-723-8181•FAX 215-723-5688
MODEL AT1000A
ANTENNA
150 - 1000 MHz
The Model AT1000A is a wide band, high-gain, log periodic antenna with gain capabilities of 7.5 dB over isotropic
(average) and gain flatness of ± 1 dB. The Model AT1000A supplies the constant, high-intensity fields necessary for
RFI/EMI field testing within and beyond the confines of a shielded room. It can also be used as a receiving antenna for RF
emissions testing. The Model AT1000A is compact and lightweight for ready mobility, yet is built tough for the extra
demands of outdoor use and easily mounts on a flat surface or tripod. The Model AT1000A is intended for use with the
2000W1000 and other high power amplifiers. Field strength generated by the Model AT1000A will be identical to those
shown by the curves for the Model AT1000.
SPECIFICATIONS
MODEL AT1000A
FREQUENCY RANGE .................................................................................150 - 1000 MHz
POWER INPUT (maximum)........................................................................See Graph
POWER GAIN (over isotropic)...................................................................6.5 dB minimum
7.5 dB average
GAIN FLATNESS.........................................................................................± 1.0 dB
IMPEDANCE................................................................................................50 ohms nominal
VSWR
Maximum............................................................................................1.8:1
Average...............................................................................................1.5:1
BEAM WIDTH (average)
E Plane...............................................................................................60°
H Plane...............................................................................................105°
FRONT TO BACK RATIO (minimum)........................................................15 dB
CONNECTOR...............................................................................................See Model Configuration;
SIZE (WxHxD ).............................................................................................102.0 x 13.0 x 91.0 cm
40.0 x 5.1 x 36.0 in
WEIGHT........................................................................................................7.0 kg (15 lb)
MOUNTING PROVISIONS.........................................................................Wall bracket included. May also be tripod
mounted in two perpendicular planes
using optional tripod.
MODEL CONFIGURATIONS
MODEL NUMBER CONNECTOR POWER INPUT
AT1000A 1 5/8 EIA flange See Graph
AT1000AM1 7-16 DIN female See Graph
REV030500
Field strength have been measured in free-space conditions. Individual shielded rooms, amplifiers, and test-system conditions will
influence performance. Field strength also varies with frequency and positions of antenna and EUT in non-anechoic testing
environments.