Horn Antennas
Broadband antennas, compared to half wave dipoles, reduce test time because the technician did not have to stop the test to adjust the dipole antenna for each frequency. Most compliance standards now require the use of such antennas. The latest version of Mil-Std 461E states the used of broadband double ridge guide horn antenna as the antenna of choice for frequencies above 200 MHz.
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Double Ridge Guide Horn Antennas
A.H. Systems Double Ridge Guide Horns are broadband antennas that offer excellent performance over the frequency range of 170 MHz to 40 GHz. These Horn antennas are an excellent choice for both radiated immunity and emissions testing. Here are several double ridge guide horn antennas ideal for most compliance standards and/or general field measurements.
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Standard Gain Horn Antennas
The Standard Gain Horn Antennas are designed specifically for utilization in emissions and immunity testing over the frequency range of 1 to 40 GHz. Each antenna is linearly polarized and has medium gain, low VSWR, and constant antenna factor. This horn performance is very precise and predictable through design parameters. Comparisons of measured versus computed antenna factors and gain have been shown to be +/- .5 dB. Therefore, the antenna is considered to be a standard reference, similar to that of a resonant dipole below 1 GHz.
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Octave Horn Antennas
A.H. Systems also offers octave bandwidth pyramidal horn antennas with excellent half power performance, low VSWR, and high handling capabilities. Their rugged designs allow for excellent operation in both immunity and emissions testing.
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