Double Ridge Active Horn Antenna
The AHA-840 Active Horn Antenna operates from 18 GHz to 40 GHz for EMI and EMC testing.
- It features a built-in low-noise preamplifier for enhanced signal sensitivity.
- The antenna includes a double ridged waveguide design with precise impedance matching.
- It is individually calibrated per ANSI C63.5 with NIST traceability.
- Full system calibration reduces measurement uncertainty.
- This antenna supports both radiated emissions and immunity testing.
- External connections allow filters and attenuators to be added.
- The antenna factor remains flat across its broadband frequency range.
- It can generate up to 1100 V/m @ 1 meter with 200W input for immunity tests.
- Ideal for high-frequency EMC applications with flexible setup options.
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18–40 GHz broadband frequency
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Built-in low-noise preamplifier
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Low antenna factor for accuracy
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For emissions & immunity tests
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ANSI C63.5 NIST-traceable calibration
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External port for filters/pads
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Flat antenna factor response
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1100 V/m field with 200W input
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Rugged build for lab or field
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Preamp bypass for high signals
- FCC, CISPR, EN, ETSI, FAA, Mil-Std, Automotive etc.
- 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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