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:
May. 14, 2019
Filed:
Jan. 27, 2016
Apple Inc., Cupertino, CA (US);
Erdinc Irci, Santa Clara, CA (US);
Carlo Di Nallo, San Carlos, CA (US);
Jayesh Nath, Milpitas, CA (US);
Zheyu Wang, Cupertino, CA (US);
Eduardo Da Costa Bras Lima, Sunnyvale, CA (US);
Hongfei Hu, Santa Clara, CA (US);
Mario Martinis, Cupertino, CA (US);
Mattia Pascolini, San Francisco, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An electronic device may have a display in a housing with a metal wall. An antenna may have an antenna ground formed from the wall and an antenna resonating element. Transceiver circuitry may be coupled to an antenna feed that extends between the antenna resonating element and the antenna ground. A return path may extend between the antenna resonating element and the antenna ground in parallel with the feed. The antenna resonating element may have segments that are coupled by a frequency dependent filter. At a first frequency, the filter may have a low impedance so that the antenna resonating element has a first effectively length. At a second frequency that is greater than the first frequency, the filter may have a high impedance so that the antenna resonating element has a second effective length that is shorter than the first effective length.