MULTIFUNCTIONAL RECEIVING ANTENNAS FOR DIRECT SATELLITE TV BROADCASTING

The trend, observed in recent years, towards the wide introduction of direct satellite television broadcasting systems has presented designe rs with the problem of extending the functions of subscriber stations for collective and individual use, including the possibility of simult aneously receiving programs from several satellites without having to redirect the antenna, receiving several frequency bands using a single antenna, and using portable antenna mirrors. In this paper we conside r the problems involved in constructing such multifunctional receiving antennas for direct satellite television broadcasting and also the ba ricentric method of calculating their parameters.