Method and structure for integrated circuit interference isolation enhancement
First Claim
1. A method for signal isolation in electronic circuits, further comprising:
- acquiring a signal of interest (SOI) at a local node;
coupling the SOI to one or more transmission paths, wherein each transmission path of the one or more transmission paths has a phase and a delay distinct from others of the one or more transmission paths;
setting the delay and phase of each transmission path of the one or more transmission paths; and
combining the one or more transmission paths at a remote node, wherein a signal at the remote node is created by summing one or more signals received on the one or more transmission paths, said summation occurring in an in-phase manner in accordance with the selection of the delay and phase of each transmission path of the one or more transmission paths.
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Abstract
A structure and method for the improvement of interference isolation using distributed broadband technology. This structure uses signal processing across a distributed network in order to optimize the isolation of a signal of interest when noise, interference and crosstalk signal sources are present. The structure is designed so that a signal arrives at a node in the network via more than one path and is summed in a correlated or in-phase manner. Each signal path is designed so that the signal phase may be modulated to create the in-phase summing. Noise sources that arrive at the network node are added in an uncorrelated or out-of-phase manner. Therefore, the combination of the signal adding coherently and the interference adding with an uncorrelated phase improves the signal to interference ratio. This type of structure may be applied in an RF power amplifier application in order to provide an improved interference or crosstalk signal ratio.
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Citations
29 Claims
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1. A method for signal isolation in electronic circuits, further comprising:
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acquiring a signal of interest (SOI) at a local node;
coupling the SOI to one or more transmission paths, wherein each transmission path of the one or more transmission paths has a phase and a delay distinct from others of the one or more transmission paths;
setting the delay and phase of each transmission path of the one or more transmission paths; and
combining the one or more transmission paths at a remote node, wherein a signal at the remote node is created by summing one or more signals received on the one or more transmission paths, said summation occurring in an in-phase manner in accordance with the selection of the delay and phase of each transmission path of the one or more transmission paths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A structure for signal isolation in electronic circuits, comprising:
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a first node of one or more nodes of an input stage, said first node operable to receive a signal of interest (SOI);
the first node of the input stage coupled to one or more nodes of the one or more nodes through one or more corresponding coupled elements, thereby creating one or more corresponding phased signals corresponding to the SOI;
each node of the one or more nodes coupled to one or more transistive elements, said one or more transistive elements operable to create one or more output signals at an output stage, said one or more output signals proportional to the one or more corresponding phased signals;
one or more remote nodes at the output stage coupled to the one or more transistive elements, wherein the one or more remote nodes is operable to receive an output signal; and
one or more additive elements coupled to the one or more remote nodes, wherein the one or more remote nodes are combined by the one or more additive elements to create a destination signal, said destination signal created by summing the one or more corresponding phased signals in an in-phase manner. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification