Backscatter transponder
First Claim
Patent Images
1. A transponder for a HF communication system, the transponder comprising:
- an antenna for receiving high-frequency carrier signals, the antenna having reflective characteristics;
a control unit for providing transponder-specific parameters; and
a modulator being controlled by the control unit, the modulator altering the reflective characteristics of the antenna in accordance with at least one transponder-specific parameter.
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Accused Products
Abstract
A backscatter transponder for an HF communication system with modulated reradiation, is provided that includes an antenna for receiving high-frequency carrier signals, wherein the antenna has reflective characteristics, a control unit for providing transponder-specific parameters, and a modulator that can be driven by the control unit. The modulator altering the reflective characteristics of the antenna in accordance with at least one transponder-specific parameter.
70 Citations
25 Claims
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1. A transponder for a HF communication system, the transponder comprising:
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an antenna for receiving high-frequency carrier signals, the antenna having reflective characteristics; a control unit for providing transponder-specific parameters; and a modulator being controlled by the control unit, the modulator altering the reflective characteristics of the antenna in accordance with at least one transponder-specific parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification