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:
Jun. 23, 2015
Filed:
Jan. 11, 2012
Jayesh Nath, Santa Clara, CA (US);
Ying Shen, Chapel Hill, NC (US);
Frank Matsumoto, San Ramon, CA (US);
Youming Qin, Sunnyvale, CA (US);
David C. M. Pham, Fremont, CA (US);
Jayesh Nath, Santa Clara, CA (US);
Ying Shen, Chapel Hill, NC (US);
Frank Matsumoto, San Ramon, CA (US);
Youming Qin, Sunnyvale, CA (US);
David C. M. Pham, Fremont, CA (US);
Aviat U.S., Inc., Santa Clara, CA (US);
Abstract
Various embodiments provide for systems and methods for increased linear output power of a transmitter. An exemplary wireless communications system for transmitting an input signal comprises a predistorter module, a GaN power amplifier, a coupler, and an antenna. The predistorter module is configured to detect existing distortion by comparing the input signal to a feedback signal and generate a correction signal. The predistorter may adaptively adjust its operation to minimize the existing distortion due to GaN power amplifier nonlinear characteristics. The result is that the GaN power amplifier may send a power signal of improved linearity to the antenna. The coupler is configured to sample the amplified signal from the GaN power amplifier to generate the feedback signal. The antenna is configured to transmit the amplified signal.