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:
Jan. 11, 2022
Filed:
Jun. 24, 2019
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Marc Harper, Snohomish, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
A communications device provides variable ground plane tuning compensation. The communications device includes a radiofrequency antenna configured to generate an electromagnetic field, a ground plane assembly electrically coupled to the radiofrequency antenna, and a variable impedance compensation network electrically connected to the ground plane assembly. The ground plane assembly is configurable between a first physical configuration and a second physical configuration. Each physical configuration presents a different ground plane assembly impedance to the electromagnetic field of the radiofrequency antenna. The variable impedance compensation network provides a compensation impedance for each physical configuration of the ground plane assembly. The compensation impedance of the variable impedance compensation network and the ground plane assembly impedance of each of the physical configurations combine to tune mutual electromagnetic coupling between the ground plane assembly and the radiofrequency antenna to satisfy a predetermined operational tuning condition for the communications device in each physical configuration.