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:
Aug. 04, 2020
Filed:
Aug. 13, 2019
Eridan Communications, Inc., Santa Clara, CA (US);
Quentin Diduck, Santa Clara, CA (US);
Eridan Communications, Inc., Mountain View, CA (US);
Abstract
A wideband polar modulation transmitter includes a power amplifier (PA), a PA driver, a dynamic power supply (DPS), a PA driver Vcontroller, and a phase modulator. The phase modulator modulates a radio frequency (RF) carrier by an input phase modulating signal PM(t) to produce a phase modulated RF carrier. Meanwhile, the DPS produces a DPS voltage for the PA that follows an input amplitude modulating signal AM(t). Using the phase modulated RF carrier, the PA driver generates a PA drive signal Vfor driving the PA. The PA drive signal Vhas a high drive level Vand a low drive level V. The PA driver Vcontroller is configured to control the magnitude of the high drive level Vso that it remains sufficiently high to force the PA to operate in a compressed mode (C-mode) most of the time but lowers the high drive level Vto force the PA to operate in a product mode (P-mode) during times low-magnitude events occur in the DPS voltage.