Title:
混合回路の構成
Document Type and Number:
Japanese Patent JP4685795
Kind Code:
B2
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.
Inventors:
Sheerland, Henry
Tillman, Fred leak
Tillman, Fred leak
Application Number:
JP2006543404A
Publication Date:
May 18, 2011
Filing Date:
November 17, 2004
Export Citation:
Assignee:
Telefon Akti Bora Get Elm Ericson (Pubble)
International Classes:
H03D7/14; H03D7/12
Domestic Patent References:
| JPS61270906A | 1986-12-01 | |||
| JPS61240705A | 1986-10-27 | |||
| JP2000514988A | 2000-11-07 |
Foreign References:
| WO1998051004A1 | 1998-11-12 | |||
| US20020051497A1 | 2002-05-02 |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama