Patent ID: 8344857

Claim:
A rectifier for a Radio Frequency Identification tag, comprising: a first antenna input, a second antenna input, first, second, third, and fourth capacitors, a first transistor including an input terminal, an output terminal, and a gate, and a second transistor of a type complementary to the first transistor and including an input terminal, an output terminal, and a gate, wherein, the input terminal of the first transistor is coupled to a beginning node, the output terminal of the first transistor is coupled to an averaging node, the input terminal of the second transistor is coupled to the averaging node, the output terminal of the second transistor is coupled to an ending node, the first antenna input is coupled to the gate of the first transistor and to the ending node, the second antenna input is coupled to the gate of the second transistor and to the beginning node, the first antenna input is coupled to the ending node via the first capacitor, the second antenna input is coupled to the beginning node via the second capacitor, the first antenna input is coupled to the gate of the first transistor via the third capacitor, and the second antenna input is coupled to the gate of the second transistor via the fourth capacitor.