Patent ID: 8781396
Filing Date: 2014-07-15
Classification: H02J,H04B

Abstract:
1. A contactless receiver comprising: a receiving section having a resonant circuit to receive an input signal at a predetermined frequency, the resonant circuit including: a rectification section operable to convert the alternating current voltage output from the receiving section into a direct current voltage, wherein the ferroelectric layer of the variable capacitor has characteristics that the capacitance thereof increases according to the alternating current voltage of the input signal at the predetermined frequency applied thereto, in a first voltage range where the alternating current voltage of the input signal at the predetermined frequency applied thereto is smaller than a voltage corresponding to a maximum capacitance of the ferroelectric layer, and decreases according to the alternating current voltage of the input signal at the predetermined frequency applied thereto, in a second voltage range where the alternating current voltage of the input signal at the predetermined frequency applied thereto is larger than the voltage corresponding to the maximum capacitance of the ferroelectric layer.