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US 11,855,610 B1Granted
Broadband data multiplexer
AssigneeRockwell Collins, Inc.
InventorsHiren Sampat, Ian P. Difranco, Todd Edwards
Life of this patent
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Abstract
A broadband switch includes multi-stage electromechanical ganged stage relays. The ganged stage relays provide at least 65 dB of electrical isolation from active broadband input or active broadband output to all non-active broadband inputs. In a further aspect, the ganged stage relays provide at least 100 dB of electrical isolation from 1 kHz to 100 MHz from broadband inputs and broadband output to power inputs.
Claims13
A broadband switch comprising:
- a first electromagnetically isolated cavity;
- a second electromagnetically isolated cavity;
- a power input disposed in the first electromagnetically isolated cavity;
- a plurality of signal inputs disposed in the second electromagnetically isolated cavity;
- and
- a plurality of analog passive relays, each associated with one or more signal inputs,
- wherein:
- the plurality of relays are organized as two stages of ganged staged relays and a final output stage;
- power interface lines associated with the power input are disposed orthogonal to data input lines associated with the plurality of signal inputs to provide at least 100 dB of electrical isolation;
- the broadband switch lacks a common ground plane to prevent ground loops;
- and
- the broadband switch lacks shared return lines to reduce mutual inductance.
9 more elements
A broadband data communication system comprising:
- a broadband switch comprising:
- a first electromagnetically isolated cavity;
- a second electromagnetically isolated cavity;
- a power input disposed in the first electromagnetically isolated cavity;
- a plurality of signal inputs disposed in the second electromagnetically isolated cavity;
- and
- a plurality of analog passive relays,
- wherein:
- the plurality of relays are organized as two stages of ganged staged relays and a final output stage;
- power interface lines associated with the power input are disposed orthogonal to data input lines associated with the plurality of signal inputs to provide at least 100 dB of electrical isolation;
- the broadband switch lacks a common ground plane to prevent ground loops;
- and
- the broadband switch lacks shared return lines to reduce mutual inductance.
10 more elements
Dependencies are inferred from the claim text.