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:
Jun. 12, 2018
Filed:
Mar. 16, 2016
Apple Inc., Cupertino, CA (US);
Yuehui Ouyang, Sunnyvale, CA (US);
Dean F. Darnell, Durham, NC (US);
Enrique Ayala Vazquez, Watsonville, CA (US);
Erica J. Tong, Pacifica, CA (US);
Hongfei Hu, Santa Clara, CA (US);
Matthew A. Mow, Los Altos, CA (US);
Mattia Pascolini, San Mateo, CA (US);
Ming-Ju Tsai, Cupertino, CA (US);
Nanbo Jin, Sunnyvale, CA (US);
Robert W. Schlub, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An electronic device may be provided with shared antenna structures that can be used to form both a near-field-communications antenna such as a loop antenna and a non-near-field communications antenna such as an inverted-F antenna. The antenna structures may include conductive structures such as metal traces on printed circuits or other dielectric substrates, internal metal housing structures, or other conductive electronic device housing structures. A main resonating element arm may be separated from an antenna ground by an opening. A non-near-field communications antenna return path and antenna feed path may span the opening. A balun may have first and second electromagnetically coupled inductors. The second inductor may have terminals coupled across differential signal terminals in a near-field communications transceiver. The first inductor may form part of the near-field communications loop antenna.