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:
Oct. 01, 2019
Filed:
Mar. 10, 2017
The Charles Stark Draper Laboratory Inc., Cambridge, MA (US);
Douglas W. White, Lexington, MA (US);
Warner G. Harrison, Medfield, MA (US);
The Charles Stark Draper Laboratory, Inc., Cambridge, MA (US);
Abstract
An adaptive impedance matching network to implement an impedance match between an RF power device and an antenna comprises a matching network having at least one tunable component, a current sensor providing a current value corresponding to the supply current associated with the RF power device, a power sensor configured to provide an RF power sensor value monotonically related to power delivered to the antenna, and a tuner to provide a tuning signal to the matching network as a function of the current and RF power values. The tuner may adjust the tuning signal so that the RF power sensor value is at least as large as for other settings of the tuning signal, while maintaining the supply current at a predetermined amount corresponding to an amount of supply current occurring when the RF power device is driving a load that produces the desired RF output power and amplifier efficiency.