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.
Patent No.:
Date of Patent:
Oct. 18, 2011
Filed:
Jun. 25, 2009
Applicants:
Bo-jr Huang, Taipei, TW;
Huei Wang, Taipei, TW;
Inventors:
Bo-Jr Huang, Taipei, TW;
Huei Wang, Taipei, TW;
Assignee:
National Taiwan University, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a low noise cascode amplifier comprising a first transistor, a second transistor, a third transistor, a first inductor, and a second inductor. Furthermore, the first transistor can connect with the second transistor via the first inductor, and the second transistor can connect with the third transistor via the second inductor; thereby, a cascode device can be formed. The inductor and the parasitic capacitances can resonate at high frequency, so that the noise figure of the cascode amplifier can be reduced.