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:
Jul. 08, 2014
Filed:
Oct. 27, 2011
Huazhang Chen, Shenzhen, CN;
Jianli Liu, Shenzhen, CN;
Xiaojun Cui, Shenzhen, CN;
Bin Duan, Shenzhen, CN;
Huazhang Chen, Shenzhen, CN;
Jianli Liu, Shenzhen, CN;
Xiaojun Cui, Shenzhen, CN;
Bin Duan, Shenzhen, CN;
ZTE Corporation, Shenzhen, Guangdong Province, CN;
Abstract
The present invention discloses a Doherty power amplifier and an implementation method thereof. A peak amplifying circuit of the Doherty power amplifier comprises a radio frequency switching circuit configured to control turn-on of the peak amplifying circuit; wherein a last stage carrier amplifier of a carrier amplifying circuit of the power amplifier uses a HVHBT device, and a last stage peak amplifier of the peak amplifying circuit of the power amplifier uses a GaN device. The present invention avoids the shortcoming when the peak branches in the Doherty power amplifier are turned on ahead of time, decreases power consumption of the peak amplifier and improves the batch efficiency of the whole Doherty power amplifier.