Patent ID: 7869802
Filing Date: 2011-01-11
Classification: H04B

Abstract:
1. A satellite-borne transponder for two or more uplink service areas, comprising: at least two uplink antennae, one low noise amplifier and one converter for each uplink antenna, at least one input filter, at least one amplification chain, each amplification chain including a channel amplifier, a high power amplifier, and an output filter, a downlink antenna for an associated downlink service area, means for associating at least one of the at least two uplink antennae to an uplink service area, the number of uplink antennae associated being determined by a preset Figure of Merit for each associated uplink service area, and at least one input multiplexer including at least as many passband filters as reception chains, each reception chain including an uplink antenna and a low noise amplifier, and a converter linked to the input multiplexer, each of the passband filters having a passband adjusted to an associated uplink service area and at least one stopband associated with the other uplink service areas.