Miscellaneous active electrical nonlinear devices – circuits – and – Specific input to output function – Combining of plural signals
Reexamination Certificate
2006-08-01
2006-08-01
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
07084693
ABSTRACT:
A sub-harmonic mixer comprises two field effect transistors (FETs) in which the drains are coupled together. The mixer includes a signal generator for generating two local oscillator signals in antiphase with each other and which is arranged to feed one local oscillator signal to the source of one of the FETs and the other local oscillator signal to the source of the other FET. 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: 5448197 (1995-09-01), Sagawa et al.
patent: 5789963 (1998-08-01), Sakusabe
patent: 6057714 (2000-05-01), Andrys et al.
patent: 6861891 (2005-03-01), Romano
Dragonwave Inc.
Lam Tuan T.
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