Title:
デュアルコンバージョン受信機のミクサー
Document Type and Number:
Japanese Patent JP4347555
Kind Code:
B2
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 (T 32 ) and second (T 33 ) switching means respectively controlled by first (in 2 ) and second (in 2 b) phase opposition control signals at a first intermediate frequency (IF 1 ), 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 (T 36 ) for modulating said first signal delivered by said first stage by means of a third control signal (in 3 ) at a second intermediate frequency (IF 2 ).
Inventors:
Arnaud Casagrande
Application Number:
JP2002303884A
Publication Date:
October 21, 2009
Filing Date:
October 18, 2002
Export Citation:
Assignee:
ASULAB SOCIETA ANONYME
International Classes:
H03D7/16; H03D7/14; H04B1/16; H04B1/26; H04B1/28; H04B1/30
Domestic Patent References:
| JP7129697A | ||||
| JP2001024442A | ||||
| JP63153942A | ||||
| JP11196016A | ||||
| JP10303776A | ||||
| JP10105632A | ||||
| JP58187005A |
Attorney, Agent or Firm:
Masaki Yamakawa