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. 10, 2018
Filed:
Jul. 01, 2016
Applicant:
Broadcast Electronics, Inc., Quincy, IL (US);
Inventor:
Brian Lindemann, Quincy, IL (US);
Assignee:
BEI Electronics LLC, Quincy, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/38 (2015.01); H03F 3/19 (2006.01); H03F 3/217 (2006.01); H04B 1/00 (2006.01); H04B 1/40 (2015.01); H04L 27/00 (2006.01);
U.S. Cl.
CPC ...
H03F 3/19 (2013.01); H03F 3/2171 (2013.01); H03F 3/2173 (2013.01); H03F 2200/102 (2013.01); H03F 2200/336 (2013.01); H03F 2200/451 (2013.01); H04B 1/00 (2013.01); H04B 1/40 (2013.01); H04L 27/0008 (2013.01);
Abstract
A high power class D amplifier/modulator for use in Radio Frequency ranges that is capable of digital modulation schemes at high efficiencies is disclosed. The new amplifier design features an envelope tracker unit that uses digital pulse-width modulation (PWM) generation to create analog I and Q phase high voltage signal components and sign bits. The I and Q phase signal components and sign bits are fed into an Fs/4 modulator stage to produce an analog output that is an high power RF signal modulated by the analog input signal.