Mixer circuit
AssigneeRichWave Technology Corp.
InventorsPo-Chih Ku, Tse-Peng Chen
Life of this patent
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Abstract
A mixer circuit including a mixer, a voltage divider circuit, and an amplifier, is provided. The mixer receives a first input signal, a second input signal, and at least one set of bias voltages, and generates an output signal. A frequency of the output signal is related to a frequency of the first input signal and a frequency of the second input signal. The voltage divider circuit receives the bias voltages and generates a common mode signal at an output end. The amplifier is coupled to the mixer to receive the output signal, and is coupled to the output end of the voltage divider circuit and configured to suppress noise in the output signal, and generate a final output signal.
Claims20
A mixer circuit, comprising:
- a diode mixer, comprising a plurality of diodes, and configured to receive a first input signal, a second input signal, and at least one set of bias voltages for forward biasing the plurality of diodes, and generate an output signal, wherein a frequency of the output signal is related to a frequency of the first input signal and a frequency of the second input signal;
- a voltage divider circuit, configured to receive the at least one set of bias voltages and generate a common mode signal at an output end;
- and
- an amplifier, having a first input end coupled to the diode mixer to receive the output signal, and a second input end coupled to the output end of the voltage divider circuit, and configured to suppress noise in the output signal, and generate a final output signal.
Dependencies are inferred from the claim text.