CPI Series 3122 1.2 M Ka-Band Circular Rx/Tx VSAT Antenna

CPI Series 3122 1.2 M Ka-Band Circular Rx/Tx VSAT Antenna

The CPI Series 3122 1.2 M Ka-Band Circular Rx/Tx VSAT Antenna provides compact, high-gain performance for fixed Ka-band satellite communications.

It covers 19.40-21.20 GHz receive and 29.20-31.00 GHz transmit frequencies. Its one-piece SMC reflector uses a specialized Ka-band formulation to provide narrow beamwidth and dependable circular polarization performance.

The antenna supports WR42 receive and WR28 transmit waveguide interfaces, 100 W RF power handling, and precise fine adjustment. Available now at Esatcom Inc.

Antenna diameter: 1.2 m

Antenna series: CPI Series 3122

Application: Ka-band satellite receive and transmit

Polarization: Circular

Receive Frequency Range: 19.40-21.20 GHz

Transmit Frequency Range: 29.20-31.00 GHz

Receive midband gain: 45.8 dBi, ±0.5 dB

Transmit midband gain: 49.4 dBi, ±0.5 dB

VSWR: 1.3:1 maximum

Receive 3 dB beamwidth: 0.85°

Transmit 3 dB beamwidth: 0.57°

Receive 15 dB beamwidth: 1.90°

Transmit 15 dB beamwidth: 1.28°

On-axis cross-polarization isolation: Receive 17.70 dB; transmit 21.30 dB

Cross-polarization isolation within 1 dB beamwidth: Receive 17.70 dB; transmit 21.30 dB

Receive waveguide interface: WR42

Transmit waveguide interface: WR28

Maximum feed support weight: 8 lb / 3.5 kg

Noise temperature at 5° elevation: 178 K

Noise temperature at 10° elevation: 137 K

Noise temperature at 20° elevation: 107 K

Noise temperature at 40° elevation: 89 K

Power handling: 100 W

Sidelobe envelope from 100λ/D to 20°: 29 - 25 log θ dBi

Sidelobe envelope from 20° to 26.3°: -3.5 dBi

Sidelobe envelope from 26.3° to 48°: 32 - 25 log θ dBi

Sidelobe envelope above 48°: -10 dBi averaged

Reflector material: Glass-fiber-reinforced polyester SMC with Ka-band formulation

Antenna optics: One-piece offset-fed prime-focus design

Mast requirement: 2.5-inch Schedule 40 pipe, 2.88-inch OD

Elevation adjustment: 5°-90° with continuous fine adjustment

Azimuth adjustment: Continuous 360° with ±10° fine adjustment

Approximate shipping weight: 80 lb / 36 kg

Operational wind performance: 45 mph / 72 km/h with 0.5 dB loss at 30.00 GHz

Survival wind speed: 125 mph / 201 km/h

Operating temperature: -40°F to +140°F / -40°C to +60°C

Operational rain rate: 0.5 inch per hour

Environmental exposure: Suitable for coastal and industrial conditions

Solar radiation: 360 BTU/h/ft²

Key Features

• Circular-polarized 1.2 m Ka-band antenna

• Receive coverage from 19.40 to 21.20 GHz

• Transmit coverage from 29.20 to 31.00 GHz

• 45.8 dBi receive and 49.4 dBi transmit gain

• Specified circular cross-polarization isolation

• WR42 receive and WR28 transmit interfaces

• 100 W RF power handling

• Compact one-piece SMC reflector

• Survival wind rating up to 125 mph