ANTENNA FEED FOR PARABOLIC SATELLITE ANTENNA OF C-WAVE BAND

摘要

This invention relates to antenna engineering. The proposed (Fig. 1) defining characteristic of the feeder is in the form of a manufactured helical antenna, which is a cylindrical spiral (1), connected with a solid coaxial cable piece (3). Such arrangement of the feeder allows elimination of the loss of signal in dielectric inserts that are used in traditional wave guide cylindrical feeders with the ability to alter the incident wave polarization, improve the signal cross polarization pattern at different sections of the plane of polarization, and reduce the size and metal consumption of the feeder. As a result, numerous other feeders, in addition to the one proposed, in various frequency ranges can be installed in the focus of the parabolic antenna.IMAGE