Power recovery circuit based on partial standing waves
First Claim
Patent Images
1. An integrated circuit comprising:
- an antenna;
an RF receiver;
a transmission line, coupled to transfer an RF signal received via the antenna, the RF signal generating a partial standing wave in the transmission line, the transmission line having at least one standing wave anti-node;
an impedance matching circuit, coupled to the transmission line and the RF receiver, the impedance matching circuit having impedance matching characteristics that support the production of the partial standing wave; and
a power recovery circuit, coupled to the at least one standing wave anti-node, for converting an anti-node signal from the at least one standing wave anti-node to a power signal.
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Abstract
A power recovery system includes a transmission line that is coupled to transfer an RF signal received via an antenna. The RF signal generates a partial standing wave in the transmission line and the transmission line has at least one standing wave anti-node. A power recovery circuit converts an anti-node signal from the at least one standing wave anti-node to a power signal.
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Citations
23 Claims
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1. An integrated circuit comprising:
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an antenna; an RF receiver; a transmission line, coupled to transfer an RF signal received via the antenna, the RF signal generating a partial standing wave in the transmission line, the transmission line having at least one standing wave anti-node; an impedance matching circuit, coupled to the transmission line and the RF receiver, the impedance matching circuit having impedance matching characteristics that support the production of the partial standing wave; and a power recovery circuit, coupled to the at least one standing wave anti-node, for converting an anti-node signal from the at least one standing wave anti-node to a power signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A power recovery system for use in conjunction with an RF receiver, the power recovery system comprising:
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a transmission line, coupled to transfer an RF signal received via an antenna, the RF signal generating a partial standing wave in the transmission line, the transmission line having at least one standing wave anti-node; and a power recovery circuit, coupled to the at least one standing wave anti-node, for converting an anti-node signal from the at least one standing wave anti-node to a power signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A power recovery system for use in conjunction with at least one RF receiver, the power recovery system comprising:
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a plurality of transmission lines, coupled to transfer a plurality of RF signals received via a plurality of antennas, the plurality of RF signals generating a corresponding plurality of partial standing waves in the plurality of transmission lines, and wherein each of the plurality of transmission lines includes at least one standing wave anti-node; a plurality of power recovery circuits, each of the plurality of power recover circuits coupled to the at least one standing wave anti-node of a corresponding one of the plurality of transmission lines, the plurality of power recovery circuits each for converting an anti-node signal from the at least one standing wave anti-node to a corresponding one of a plurality of power signals; and a combining circuit, coupled to the plurality of power recovery circuits, for generating a combined power signal, based on the plurality of power signals.
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Specification