Sub-harmonic mixer

Details Sub-harmonic mixer Sub-harmonic mixer

2005-03-01

2005-03-01

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific input to output function

Combining of plural signals

C327S356000

Reexamination Certificate

active

06861891

ABSTRACT:
A sub-harmonic mixer comprises two field effect transistors in which the sources of the transistors are connected together and the drains of the transistors are connected together. The mixer includes signal generating means for generating a local oscillator (LO) signal coupled to the gate of one of the FETs. Circuit means is provided for maintaining the potential of the gate of the other FET at a substantially constant value relative to the local oscillator signal applied to the gate of the driven FET, and the FET's are arranged to permit the local oscillator signal applied to gate of the driven FET to drive a voltage across the gate-source of both FET's. An input and output port is coupled to the drains for receiving input signals for the mixer and outputting output signals from the mixer.

REFERENCES:
patent: 4403156 (1983-09-01), Sakamoto
patent: 5767726 (1998-06-01), Wang
patent: 5809410 (1998-09-01), Stuebing et al.
patent: 5826183 (1998-10-01), Apel
patent: 6664824 (2003-12-01), Laws

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