Patent ID: 6480165
Filing Date: 2002-11-12
Classification: H01P,H01Q,Y10S

Abstract:
A multibeam antenna for establishing individual communication links with at least first and second satellites located at different geostationary positions and in close angular proximity to each other, comprising:a reflector that directs signals transmitted to or from the first and second satellites; a first wave-guide positioned with respect to said reflector for establishing a communication link with the first satellite; and a second wave-guide positioned alongside said first wave-guide and being arranged with respect to said reflector so as to establish a communication link with the second satellite, wherein at least one of said wave-guides is capable of both transmitting and receiving signals and comprises: a feedhorn section having one end oriented for receiving or transmitting signals; a transmit wave-guide section communicatively connecting with said feedhorn section for connecting to a transmitter; and a receive wave-guide section communicatively connecting with said feedhorn section for connecting to a receiver, and at least one of said wave-guides has a dielectric constant greater than that of air.