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. 24, 2016
Filed:
Jan. 04, 2012
Mattia Pascolini, Campbell, CA (US);
Robert W. Schlub, Cupertino, CA (US);
Nanbo Jin, Sunnyvale, CA (US);
Matthew A. Mow, Los Altos, CA (US);
Hongfei HU, Santa Clara, CA (US);
Joshua G. Nickel, San Jose, CA (US);
Mattia Pascolini, Campbell, CA (US);
Robert W. Schlub, Cupertino, CA (US);
Nanbo Jin, Sunnyvale, CA (US);
Matthew A. Mow, Los Altos, CA (US);
Hongfei Hu, Santa Clara, CA (US);
Joshua G. Nickel, San Jose, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antennas. An antenna may be formed from an antenna resonating element arm and an antenna ground. The antenna resonating element arm may have a shorter portion that resonates at higher communications band frequencies and a longer portion that resonates at lower communications band frequencies. A short circuit branch may be coupled between the shorter portion of the antenna resonating element arm and the antenna ground. A series-connected inductor and switch may be coupled between the longer portion of the antenna resonating element arm and the antenna ground. An antenna feed branch may be coupled between the antenna resonating element arm and the antenna ground at a location that is between the short circuit branch and the series-connected inductor and switch.