Mixer for dual conversion receiver

Details Mixer for dual conversion receiver Mixer for dual conversion receiver

2005-06-14

2005-06-14

Urban, Edward F. (Department: 2685)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S208000, C455S280000, C455S323000, C331S03600C

Reexamination Certificate

active

06907236

ABSTRACT:
The invention concerns a mixer, in particular for an dual conversion receiver. The mixer includes a first variable transconductance stage (A) controlled by a high frequency carrier signal, this first stage including first (37) and second (38) terminals delivering a first signal; and a second stage (B) connected to said first terminal of the first stage including, in parallel, first (T32) and second (T33) switching means respectively controlled by first (in2) and second (in2b) phase opposition control signals at a first intermediate frequency (IF1), these first and second switching means being powered by a substantially equal current supplied by polarisation means (34). The mixer according to the invention is characterised in that it further includes means (T36) for modulating said first signal delivered by said first stage by means of a third control signal (in3) at a second intermediate frequency (IF2).

REFERENCES:
patent: 5448772 (1995-09-01), Grandfield
patent: 5982457 (1999-11-01), Limberg
patent: 6061096 (2000-05-01), Limberg
patent: 6144846 (2000-11-01), Curec
patent: 6219108 (2001-04-01), LeRoy
patent: 6509796 (2003-01-01), Nguyen et al.

Affiliated with

Also associated with

Rating

Mixer for dual conversion receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mixer for dual conversion receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mixer for dual conversion receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3506706