Title: Mixer arrangement
Application Number: 200480036258 Application Date: 2004.11.17
Publication Number: 1890873 Publication Date: 2007.01.03
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03D7/14
Applicant(s) Name: Ericsson Telefon AB L. M. Address:
Inventor(s) Name: Sjoland Henrik;Tillman Fredrik
Attorney & Agent: yang kai chen jingjun
Abstract:
    A quadrature connected passive mixer arrangement for frequency converting analog signals from a first to a second frequency. The arrangement comprises two parallel connected mixers provided as transistors. First and second LO signals and their inverse signals having separated phases are provided for driving the transistors. Signal path switches are provided between the RF terminals and the mixer transistors. The switches are driven by signals having a different phase than the signal driving the corresponding mixer transistor. Thus, any short circuit between IF terminals of the arrangement may be eliminated.
Time: 12
<- Previous Patent:Amplifier linearization using non...   |  Next Patent:Mixer circuit ->