Here is our listing of different horn antenna types split up into three categories. 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. The double ridge guide horn antennas are an excellent choice where broadband coverage is required, these antennas cover 170 MHz up to 40 GHz. We also have a listing for standard gain antennas, or also known as pyramidal horns, these antennas are very precise and predictable through design parameters covering a range of 750 MHz up to 40 GHz. We also offer a series of octave horn antennas with low VSWR, medium gain and high input handling capabilities.