Patent ID: 11876543
Assignee: HANGZHOU GEO-CHIP TECHNOLOGY CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The mixer circuit of claim 1, wherein the low-pass filter comprises a first capacitor, a second capacitor, a first voltage amplifier, and a second voltage amplifier,
two terminals of the first capacitor are respectively connected to the I-channel non-inverting input terminal of the passive quadrature mixer and a ground output terminal of the first voltage amplifier, and a ground input terminal of the first voltage amplifier is connected to the Q-channel non-inverting input terminal of the passive quadrature mixer,
two terminals of the second capacitor are respectively connected to the Q-channel non-inverting input terminal of the passive quadrature mixer and a ground output terminal of the second voltage amplifier, and a ground input terminal of the second voltage amplifier is connected to the I-channel non-inverting input terminal of the passive quadrature mixer.