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. 23, 2019
Filed:
Dec. 08, 2017
Qorvo Us, Inc., Greensboro, NC (US);
George Maxim, Saratoga, CA (US);
Marcus Granger-Jones, Scotts Valley, CA (US);
Toshiaki Moriuchi, San Jose, CA (US);
Dirk Robert Walter Leipold, San Jose, CA (US);
Baker Scott, San Jose, CA (US);
Qorvo US, Inc., Greensboro, NC (US);
Abstract
Embodiments of the disclosure relate to a low noise amplifier (LNA) circuit. The LNA circuit includes an LNA configured to amplify a radio frequency (RF) input signal to generate an RF output signal. The LNA may be inherently nonlinear and, as a result, can create a harmonic distortion(s), such as second harmonic distortion (HD2), and/or an intermodulation distortion(s), such as second order intermodulation distortion (IMD2), in the RF output signal. In exemplary aspects discussed herein, a distortion amplifier(s) is provided in the LNA circuit to generate a distortion signal(s) to suppress the harmonic distortion(s) and/or the intermodulation distortion(s) in the RF output signal. By suppressing the harmonic distortion(s) and/or the intermodulation distortion(s) in the RF output signal, the LNA circuit may protect an adjacent RF band(s), such as the fifth-generation ultra-high-band (5G UHB), from the harmonic and/or intermodulation distortion(s) without compromising overall noise figure (NF) of the LNA circuit.