Invention Grant
- Patent Title: RFID transponder using ambient radiation
- Patent Title (中): RFID应答器使用环境辐射
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Application No.: US12644561Application Date: 2009-12-22
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Publication No.: US08373543B2Publication Date: 2013-02-12
- Inventor: Karl D. Brommer , Candice L. Brittain , Eldon M. Sutphin
- Applicant: Karl D. Brommer , Candice L. Brittain , Eldon M. Sutphin
- Applicant Address: US NH Nashua
- Assignee: BAE Systems Information and Electronic Systems Integrations Inc.
- Current Assignee: BAE Systems Information and Electronic Systems Integrations Inc.
- Current Assignee Address: US NH Nashua
- Agency: Maine Cernota & Rardin
- Agent David A. Rardin
- Main IPC: H04Q5/22
- IPC: H04Q5/22
Abstract:
A tag operates in an environment where transmitted interrogators are not possible or desired. High-efficiency diode rectifiers and low-power oscillators are used in combination with an energy storage element and hysteretic switch. The combination of multi-diode rectifier, low power tunnel diode oscillator, energy storage element and hysteretic switch allow for nanowatt levels of received RF power to be stored to produce micro-watts of RF transmit power. The device trickle charges off of ambient RF radiation until enough energy is stored for transmission.
Public/Granted literature
- US20110148580A1 RFID TRANSPONDER USING AMBIENT RADIATION Public/Granted day:2011-06-23
Information query
