Miscellaneous active electrical nonlinear devices – circuits – and – Specific input to output function – Combining of plural signals
Reexamination Certificate
2006-01-03
2006-01-03
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific input to output function
Combining of plural signals
C455S333000
Reexamination Certificate
active
06982588
ABSTRACT:
The mixer circuit includes a differential rf input driver; a differential local oscillator input circuit coupled to the differential rf input driver; a non-linear load coupled to the differential local oscillator input circuit wherein the non-linear load compensates for non-linearity of the differential rf input driver. The non-linear load has a V-I (voltage-current) transfer function the inverse of the input driver. This improves the mixer linearity without sacrificing the Gain or Noise Figure.
REFERENCES:
patent: 5396659 (1995-03-01), Kimura
patent: 5576653 (1996-11-01), Kimura
patent: 5630228 (1997-05-01), Mittel
patent: 5708383 (1998-01-01), Lee
patent: 5774010 (1998-06-01), Kimura
patent: 5825232 (1998-10-01), Kimura
patent: 5936466 (1999-08-01), Andoh et al.
patent: 6370372 (2002-04-01), Molnar et al.
patent: 6876843 (2005-04-01), Madni et al.
Chen Chien-Chung
Gharpurey Ranjit
Lin Heng-Chih
Almo Khareem E.
Brady III W. James
Stewart Alan K.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
LandOfFree
Inverse function method for semiconductor mixer linearity... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Inverse function method for semiconductor mixer linearity..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inverse function method for semiconductor mixer linearity... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3574896