AR 10008384, Operating And Service Manual

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061209
160 School House Road Souderton, PA 18964-9990 • 215-723-8181 • www.ar-worldwide.com Page 1 of 2
Model ATH18G27-1
Antenna
18GHz–26.5GHz
The Model ATH18G27-1 is a wide band, low gain, wide beamwidth, high power microwave horn antenna.
With a minimum gain of 8.8dB over isotropic, the Model ATH18G27-1 supplies the high intensity fields
necessary for RFI/EMI field testing within and beyond the confines of a shielded room. The Model ATH18G27-
1 is extremely compact and light weight for ready mobility, yet is built tough enough for the extra demands of
outdoor use and easily mounts on a rigid waveguide by the waveguide flange. Part of a family of microwave
frequency antennas, the Model ATH18G27-1 provides the 18.0-26.5GHz response required for many often
used test specifications.
The ATH18G27-1 is ideally suited for use with the AR Models 40T18G26 and other high power amplifiers in
this frequency range.
SPECIFICATIONS
FREQUENCY RANGE .................................................... 18.0-26.5GHz
POWER INPUT (maximum) ............................................ 350 watts CW
POWER GAIN (over isotropic) ........................................ See Curve
VSWR
Maximum
.............................................................. 1.5:1
Average ................................................................. 1.3:1
BEAM WIDTH (average)................................................. See Curve
CONNECTOR .............................................................. WR-42 waveguide
MOUNTING PROVISIONS ............................................. Waveguide flange
WEIGHT (maximum) ..................................................... 57 g. (2 oz.)
SIZE (WxHxD) ................................................................ 1.63 x 1.32 x 2.92 cm, (0.64 x 0.52 x 1.15 in)