RFID tags having a rectifier circuit including a dual-terminal rectifier device
First Claim
Patent Images
1. A circuit for a Radio Frequency Identification tag, comprising:
- first and second antenna input signal nodes configured to receive a first and second alternating input signal, respectively; and
a power management unit having a plurality of successive stages, each stage coupled to the first and second antenna input nodes, at least one of the stages including;
a dual-terminal rectifier device having first and second input terminals coupled to first and second antenna input signal nodes, respectively, the dual-terminal rectifier further having an output terminal and a gate, the gate configured to form a conductive channel that electrically couples the first and second input terminals to the output terminal in response to a gate voltage, the dual-terminal rectifier device configured to rectify a combination of the alternating input signals applied to the input terminals of the semiconductor device to generate a rectified output signal at the output terminal.
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus and method for generating a rectified output signal in a RFID tag from first and second alternating signals. A dual-terminal rectifier device has first and second input terminals to which the first and second alternating signals are applied, and further has a gate configured to form a conductive channel to electrically couple the first and second input terminals to the output terminal in response to a gate voltage. The dual-terminal rectifier device is configured to rectify a combination of the alternating input signals applied to the input terminals of the semiconductor device to generate a rectified output signal at an output terminal.
36 Citations
22 Claims
-
1. A circuit for a Radio Frequency Identification tag, comprising:
-
first and second antenna input signal nodes configured to receive a first and second alternating input signal, respectively; and a power management unit having a plurality of successive stages, each stage coupled to the first and second antenna input nodes, at least one of the stages including; a dual-terminal rectifier device having first and second input terminals coupled to first and second antenna input signal nodes, respectively, the dual-terminal rectifier further having an output terminal and a gate, the gate configured to form a conductive channel that electrically couples the first and second input terminals to the output terminal in response to a gate voltage, the dual-terminal rectifier device configured to rectify a combination of the alternating input signals applied to the input terminals of the semiconductor device to generate a rectified output signal at the output terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A Radio Frequency Identification tag, comprising:
-
an antenna; and an integrated circuit (IC) coupled to the antenna, comprising; first and second antenna input signal nodes coupled to the antenna and configured to receive a first and second alternating input signal, respectively; and a power management unit having a plurality of successive stages, each stage coupled to the first and second antenna input nodes, at least one of the stages including; a dual-terminal rectifier device having first and second input terminals coupled to first and second antenna input signal nodes, respectively, the dual-terminal rectifier further having an output terminal and a gate, the gate configured to form a conductive channel that electrically couples the first and second input terminals to the output terminal in response to a gate voltage, the dual-terminal rectifier device configured to rectify a combination of the alternating input signals applied to the input terminals of the semiconductor device to generate a rectified output signal at the output terminal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification