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:
Feb. 15, 2011
Filed:
Jun. 10, 2009
Yung-nien Jen, Taipei, TW;
Jeng-han Tsai, Taipei, TW;
Tian-wei Huang, Taipei, TW;
Huei Wang, Taipei, TW;
Che-yu Wang, Taipei, TW;
Yung-Nien Jen, Taipei, TW;
Jeng-Han Tsai, Taipei, TW;
Tian-Wei Huang, Taipei, TW;
Huei Wang, Taipei, TW;
Che-Yu Wang, Taipei, TW;
National Taiwan University, Taipei, TW;
Abstract
A distributed active transformer (DAT) based millimeter-wave (MMW) power amplifier circuit is designed for power amplification of MMW frequency signals. The proposed MMW power amplifier circuit is characterized by distributing the input frequency signals into two sets of differential signals and by the use of a distributed active transformer circuit unit to process these two sets of differential signals to thereby generate an amplified frequency signal as the end result of output. The invention provides higher and greater added values and power added efficiency (PAE) and is ideal for use in millimeter-wave communications systems with an operation frequency around 60 GHz.