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:
Oct. 06, 2015
Filed:
Mar. 18, 2013
Apple Inc., Cupertino, CA (US);
Yuehui Ouyang, Sunnyvale, CA (US);
Nanbo Jin, Sunnyvale, CA (US);
Yijun Zhou, Sunnyvale, CA (US);
Enrique Ayala Vazquez, Watsonville, CA (US);
Anand Lakshmanan, San Jose, CA (US);
Robert W. Schlub, Cupertino, CA (US);
Mattia Pascolini, Campbell, CA (US);
Matthew A. Mow, Los Altos, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include an inverted-F antenna resonating element and an antenna ground that form an inverted-F antenna having first and second antenna ports. The antenna structures may include a slot antenna resonating element. The slot antenna resonating element may serve as a parasitic antenna resonating element for the inverted-F antenna at frequencies in a first communications band and may serve as a slot antenna at frequencies in a second communications band. The slot antenna may be directly fed using a third antenna port. An adjustable capacitor may be coupled to the first port to tune the inverted-F antenna. The inverted-F antenna may also be tuned using an adjustable capacitor bridging the slot antenna resonating element.