Microstar, Inc.
8-foot X-band with 2-foot Acquisition Antenna Specifications

8 foot X-band Antenna

Frequency Range 8.5 - 9.6 GHz
Polarization Linear Vertical
Peak Power 250 Kilowatt with 15 PSIg pressure
Average Power 320 watts
Gain 43.2 dB minimum
Beamwidth 1.0 degrees nominal
Sum Channel Sidelobes below -18 dB
Difference Channel Sidelobes below -19 dB
Cross Polarization 30 dB minimum
Sum Channel VSWR 1.5 maximum
Difference Channel VSWR 1.7 maximum
Null Depth 35 dB minimum
Error Slope Error channel less than 22 dB below Sum at 1 mil off boresight
Boresight Accuracy 0.1 mil max shift over frequency band
Waveguide Interface UG137B/U flanges

2 foot X-band Acquisition Antenna

Frequency Range 8.5 - 9.6 GHz
Polarization Linear Vertical
Peak Power 250 Kilowatt with 15 PSIg pressure
Average Power 320 watts
Gain 32.0 dB minimum
Beamwidth 4.0 degrees nominal
Sum Channel Sidelobes Below 17 dB
Difference Channel Sidelobes Below 17 dB
Cross Polarization 30 dB min at boresight
Sum Channel VSWR 1.5 maximum
Difference Channel VSWR 1.7 maximum
Null Depth 30 dB minimum
Error Slope Error channel less than 22 dB below Sum at 4 mils off boresight
Boresight Accuracy 1.0 mil max shift over frequency band
Waveguide Interface UG137B/U flanges

Common Specifications

Pressurization Withstand 30 PSIG
Mechanical Resonance 20 Hz minimum
Tracking Rate 40 degrees/sec
Tracking Acceleration 50 deg/sec/sec
Weight Less than 300 pounds
Operating Temperature -25 deg C to 50 deg C
Operating Wind 45 knots
Non-operating Wind 100 knots

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