The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 10, 2005

Filed:

Apr. 09, 2001
Applicants:

Sang Gug Lee, Daejeon, KR;

Jung-ki Choi, Daejeon, KR;

Nam-soo Kim, Daejeon, KR;

Inventors:

Sang Gug Lee, Daejeon, KR;

Jung-Ki Choi, Daejeon, KR;

Nam-Soo Kim, Daejeon, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B001/26 ;
U.S. Cl.
CPC ...
Abstract

A current-reusing bleeding mixer capable of providing a higher conversion gain, linearity and lower noise figure employing a field-effect transistor includes a first to a fourth transistor and a first and a second load element. The first transistor amplifies a radio frequency (RF) signal. The second and the third transistor, each connected to the first transistor, receive a balanced local oscillator (LO) signal to mix it with the RF signal. The first and the second load element are connected between a supply voltage source and the second transistor and between the supply voltage source and the third transistor, respectively. The fourth transistor, connected between the supply voltage source and the first transistor, amplifies the RF signal and bleeds a current from the supply voltage source.


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