Wide-band communication satellite antenna using a multifrequency primary horn

The design method of and experimental results obtained from a wide-band satellite antenna with a multifrequency primary horn is described. This antenna can be used in 4, 6, 20, and 30 GHz frequency bands. Some measured data of the primary horn and the antenna are reported. Consequently, the antenna efficiency is about 45-50 percent in all the above frequency bands.