Frequency conversion circuit arrangement and mobile radio...

Details Frequency conversion circuit arrangement and mobile radio... Frequency conversion circuit arrangement and mobile radio...

2006-04-18

2006-04-18

Mis, David (Department: 2817)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C455S323000

Reexamination Certificate

active

07030667

ABSTRACT:
A frequency conversion circuit arrangement is disclosed providing a complex output signal at its output. The circuit comprises two frequency mixers that are driven, on the one hand, by an input signal and, on the other hand, by a feedback signal. In this case, the feedback signal is the frequency-divided output signal and has been broken down into an in-phase component and a quadrature component. The frequency conversion circuit provides a signal at an output frequency in a manner independent of production tolerances and accurately in terms of frequency, said signal being in the form of an IQ signal and additionally being decoupled, in terms of frequency, from the input signal. The frequency conversion circuit is therefore particularly well suited to use in mobile radio transceivers.

REFERENCES:
patent: 6816021 (2004-11-01), Hahn et al.
patent: 34 12 191 (1985-10-01), None
patent: 35 33 104 (1987-04-01), None
patent: 44 97 767 (1999-02-01), None
patent: 198 19 038 (1999-11-01), None
patent: 1 178 604 (2002-02-01), None
International Search Report, Int. Application No. PCT/DE03/00478, 2 pgs.

Affiliated with

Also associated with

Rating

Frequency conversion circuit arrangement and mobile radio... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency conversion circuit arrangement and mobile radio..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency conversion circuit arrangement and mobile radio... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3543185