H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/26 (2006.01) H03D 7/00 (2006.01) H03D 7/12 (2006.01) H03D 7/14 (2006.01) H03D 7/16 (2006.01) H04B 1/28 (2006.01) H04B 1/30 (2006.01)
Patent
CA 2406780
The invention concerns a mixer, in particular for a 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).
Asulab S.a.
Gowling Lafleur Henderson Llp
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