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AHA-840

Active Horn Antenna With a broadband, high-gain, low noise preamplifier

The AHA-840 Active Horn Antenna is part of Com-Power’s extensive line of EMC test antennas. The AHA-840 smartly incorporates a broadband, double ridged waveguide horn antenna with precision waveguide to coaxial adapter (meticulously tuned as a set for optimum VSWR performance and impedance matching) and a broadband, high-gain, lownoise preamplifier; integrated into a single, well-built, durable, custom designed assembly which facilitates the flexibility to be configured for almost any application.

Features

Key capabilities and advantages

  • 18–40 GHz broadband frequency
  • Built-in low-noise preamplifier
  • Low antenna factor for accuracy
  • For emissions & immunity tests
  • ANSI C63.5 NIST-traceable calibration
  • External port for filters/pads
  • Flat antenna factor response
  • 1100 V/m field with 200W input
  • Rugged build for lab or field
  • Preamp bypass for high signals

Specification

Technical specifications and parameters

Frequency Range 18 GHz to 40 GHz
Polarization Linear
VSWR - Antenna Port 1.4:1 average (see graph below)
P(out) @ 1 dB Compression >10 dBm
Noise Figure < 6 dB
Active Antenna Gain > 55 dBi
Preamplifier Gain 37 to 43 dB (see graph below)
Dimensions 10.2” x 8.5” x 5.9” (26 cm x 21.7 cm x 15 cm)
Weight 1.5 lbs (0.68 kg)
Connector Types 50Ω [2.92mm] “K type” female (for all RF connections)
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2026
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