Atec Amplifier-Research-ATH1G18 - Manual

061109
160 School House Road Souderton, PA 18964-9990 • 215-723-8181 • www.ar-worldwide.com Page 1 of 3
Model ATH1G18
Antenna
1 GHz–18GHz
The Model ATH1G18 is a wide band, high gain, microwave horn antenna that provides a minimum gain of
7dB over isotropic over the frequency range 1GHz to 18GHz. The Model ATH1G18 supplies the constant high
intensity fields necessary for RFI/EMI field testing within and beyond the confines of a shielded room. The
Model ATH1G18 is also designed to perform emissions measurements. The Model ATH1G18 is compact and
light weight for ready mobility, yet is built tough enough for the extra demands of outdoor use and easily
mounts on a tripod. The Model ATH1G18 provides the 1-18GHz response required for many often-used test
specifications.
SPECIFICATIONS
FREQUENCY RANGE .................................................... 1-18GHz
POWER INPUT (maximum) ............................................ 300 Watts CW up to 7 GHz
Above 7GHz, derate linearly to 175 watts
at 18 GHz (See graph)
POWER GAIN (over isotropic) ........................................ See Curve
IMPEDANCE ................................................................. 50 ohms nominal
VSWR
Typical ................................................................... 2:1
BEAM WIDTH (average)
E Plane .................................................................. See Curve
H Plane ................................................................. See Curve
FRONT TO BACK RATIO (minimum) .............................. 20 dB
CONNECTOR .............................................................. N(F) Precision
MOUNTING PROVISIONS ............................................. May be tripod mounted with or without tripod mount.
WEIGHT ....................................................................... 1.57 kg (3.45 lbs)
SIZE (WxHxD) ................................................................ 24.1 x 16 x 20.4 cm (9.48 x 6.29 x 8.03 in)