Active Horn Antennas

Antenna Models

The AHA-118 is a broadband, linearly polarized Double-Ridge Horn Antenna with a built-in 40 dB gain, low-noise preamplifier.

Notes:

The AHA-118 Active Horn Antenna covers 700 MHz to 18 GHz for EMI and EMC testing.
Handles up to 300 Watts continuous input power; ideal for high-power EMC immunity testing across broad RF bands.
It features a built-in 40 dB low-noise preamplifier for high sensitivity.
Supports both transmit and receive functions for versatile RF testing.
Compliant with major standards like FCC, CISPR, EN, ETSI, MIL-STD-461, and RTCA DO-160 for global regulatory acceptance.
Includes NIST-traceable calibration per ANSI C63.5 or SAE ARP958.
Built with rugged, corrosion-resistant aluminum for lab and outdoor use.
Comes with a standard 1/4" x 20 mount and right-angle bracket for easy setup.

AHA-840 Active Horn Antenna – 18 GHz to 40 GHz

Operates from 18 GHz to 40 GHz, supporting high-frequency EMI and EMC testing requirements.
Integrated low-noise preamplifier mounted directly behind the antenna for improved measurement sensitivity.
High gain of 37–43 dB, enhancing signal detection across all test scenarios.
Noise figure below 6 dB, maximizing signal-to-noise ratio in low-level environments.
Precision double-ridged waveguide design with optimized impedance matching.
Individually calibrated per ANSI C63.5 with NIST-traceable data.
Full system calibration minimizes overall measurement uncertainty.
Supports both radiated emissions and immunity testing.
External ports allow integration of filters and attenuators for flexible configurations.
Maintains a flat antenna factor across the broadband frequency range.
Capable of generating up to 1100 V/m at 1 meter with 200 W input for immunity applications.
Lightweight and compact design — only 0.68 kg (1.5 lbs) for easy positioning and portability.
Includes precision waveguide-to-coax adapter with excellent VSWR performance (~1.4:1 average) for reliable measurements.