Intermediate frequency transponded payload implementation
First Claim
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1. A multi-beam satellite comprising:
- an input section to receive a plurality of uplink spot beams in a first range of frequencies;
an output section to transmit a plurality of downlink spot beams in a second range of frequencies; and
an IF section coupled between said input section and said output section, said IF section to down-convert said plurality of uplink spot beams in said first range of frequencies to a plurality of intermediate signals in an intermediate range of frequencies, flexibly and selectively switch and filter said plurality of intermediate signals in said intermediate range of frequencies, and up-convert said plurality of intermediate signals in said intermediate range of frequencies to said plurality of downlink spot beams in said second range of frequencies.
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Abstract
A multi-beam satellite has an input section to receive uplink spot beams in a first range of frequencies and an output section to transmit downlink spot beams in a second range of frequencies. An IF section is coupled between the first antenna and second antenna. It down-converts the uplink spot beams in the first range of frequencies to intermediate signals in an intermediate range of frequencies, flexibly and selectively switches and filters the intermediate signals in the intermediate range of frequencies, and up-converts the intermediate signals in the intermediate range of frequencies to the downlink spot beams in the second range of frequencies.
30 Citations
19 Claims
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1. A multi-beam satellite comprising:
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an input section to receive a plurality of uplink spot beams in a first range of frequencies;
an output section to transmit a plurality of downlink spot beams in a second range of frequencies; and
an IF section coupled between said input section and said output section, said IF section to down-convert said plurality of uplink spot beams in said first range of frequencies to a plurality of intermediate signals in an intermediate range of frequencies, flexibly and selectively switch and filter said plurality of intermediate signals in said intermediate range of frequencies, and up-convert said plurality of intermediate signals in said intermediate range of frequencies to said plurality of downlink spot beams in said second range of frequencies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of switching a plurality of uplink spot beams to a plurality of downlink spot beams in a multi-beam satellite, said method comprising:
down-converting said plurality of uplink spot beams to a plurality of intermediate frequencies;
selectively switching and filtering said plurality of uplink spot beams at said plurality of intermediate frequencies; and
up-converting said switched and filtered uplink spot beams from said intermediate frequencies by a plurality of selectable frequency translation amounts to the frequencies of said plurality of downlink spot beams. - View Dependent Claims (15, 16, 17, 18, 19)
Specification