Difference between active horn antenna and horn antenna?
Active horn antenna measurement system arrangement, with preamplifier directly behind the antenna, rather than next to ( or embedded into) the remotely located test receiver, increases measurement sensitivity, as well as accuracy, by amplifying the received signals prior to being significantly attenuated by the long cable run between the test site and test equipment area.
Com-Power's selection of Active Broadband Horn Antennas for use in emissions (receiving only) for EMC testing. Also used for immunity testing if built-in preamplifier is bypassed.
Active Horn Antenna Frequency Rages
AHA-118: Broadband 1 GHz to 18 GHz (useable from 700 MHz)
The AHA-118 is a broadband, linearly polarized Double Ridge Horn Antenna with built-in, 40 dB gain, low noise preamplifier. This active antenna operates over the frequency range of 700 MHz to 18 GHz, with excellent efficiency from 1 GHz to 18 GHz.
AHA-840: Broadband 18 GHz to 40 GHz
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, low-noise preamplifier; integrated into a single, well-built, durable, custom designed assembly which facilitates the flexibility to be configured for almost any application.
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