Sampling mixer, filter device, and radio device

Details Sampling mixer, filter device, and radio device Sampling mixer, filter device, and radio device

2011-07-05

2011-07-05

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific input to output function

Combining of plural signals

C327S359000, C327S361000, C455S326000

Reexamination Certificate

active

07973586

ABSTRACT:
A sampling mixer includes TAs (transconductance amplifiers), an in-phase mixer section connected to the TA and the TA, an opposite-phase mixer section connected in parallel with the in-phase mixer section, and a signal generator for generating a control signal for the in-phase mixer section and the opposite-phase mixer section respectively. The IIR filter using signals that underwent a current conversion by using the different transconductances is constructed, so that the filter characteristic can be designed by a weighting of the transconductance in addition to a capacitance ratio. As a result, the wide-band filter characteristic and the band-pass filter characteristic can be obtained, and deterioration of the receiving sensitivity can be suppressed by designing the filter characteristic suitable for the radio communication system.

REFERENCES:
patent: 7057540 (2006-06-01), Muhammad et al.
patent: 7519135 (2009-04-01), Staszewski et al.
patent: 7634247 (2009-12-01), Joet et al.
patent: 7822389 (2010-10-01), Muhammad et al.
patent: 2003/0040294 (2003-02-01), Staszewski et al.
patent: 2003/0050027 (2003-03-01), Muhammad et al.
patent: 2003/0080888 (2003-05-01), Muhammad et al.
patent: 2003/0083033 (2003-05-01), Staszewski et al.
patent: 2005/0233725 (2005-10-01), Muhammad et al.
patent: 2008/0299937 (2008-12-01), Miyano et al.
patent: 2009/0270061 (2009-10-01), Hosokawa et al.
patent: 2004-289793 (2004-10-01), None
patent: 2006211153 (2005-01-01), None
patent: 2006-211153 (2006-08-01), None
International Search Report for PCT/JP2008/000616.

Affiliated with

Also associated with

Rating

Sampling mixer, filter device, and radio device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sampling mixer, filter device, and radio device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sampling mixer, filter device, and radio device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2741079