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:
Nov. 21, 2017
Filed:
Jun. 02, 2015
Massachusetts Institute of Technology, Cambridge, MA (US);
Frank C. Robey, Concord, MA (US);
Timothy M. Hancock, Somerville, MA (US);
Gregory B. Stahl, LaFayette, CO (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
A matching technique that may be used with electrically small antennas uses one or more digital circuit blocks connected in a feedback arrangement configured to tune the transfer function response between the antenna and an output port of the system. Each circuit block may include an analog-to-digital converter (ADC), a digital filter, and a digital-to-analog converter (DAC). As such, tuning the transfer function may be achieved by sensing a voltage or current at various circuit nodes using one or more ADCs, filtering the measurements in response-shaping digital filters, and using one or more DACs to drive other circuit nodes in a manner that elicits a desired circuit response. Techniques are provided for allowing a matched antenna to adapt to a changing environment about the antenna. In one illustrative embodiment, the digital circuit blocks may be provided as digital non-Foster circuit blocks.