Patent ID: 9680454
Date: 2017-06-13
CPC Classifications: H03B,H03K

Claim:
1. A frequency tripler, comprising: a double-frequency in-phase signal generator, for receiving at least an in-phase signal and a quadrature signal to generate a double-frequency in-phase signal with a frequency being twice that of the in-phase signal or the quadrature signal; a double-frequency quadrature signal generator, for receiving at least the in-phase signal and the quadrature signal to generate a double-frequency quadrature signal with a frequency being twice that of the in-phase signal or the quadrature signal; and a mixer, for receiving the in-phase signal, the quadrature signal, the double-frequency in-phase signal and the double-frequency quadrature signal to generate an output signal with a frequency being triple that of the in-phase signal or the quadrature signal; wherein at least one of the double-frequency in-phase signal generator and the double-frequency quadrature signal generator receives an in-phase signal of a first phase, a quadrature signal of a second phase, a third signal of a third phase and a fourth signal of a fourth phase, each of the first, second, third and fourth phases being different from one another, and generates the double-frequency in-phase signal or the double-frequency quadrature signal based upon the in-phase signal, the quadrature signal, the third signal and the fourth signal.