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.

Date of Patent:
Aug. 08, 2017

Filed:

May. 27, 2015
Applicant:

Avago Technologies General Ip (Singapore) Pte. Ltd., Singapore, SG;

Inventors:

Henrik Tholstrup Jensen, Long Beach, CA (US);

Hyungpyo Lee, Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/00 (2006.01); H04B 5/00 (2006.01); H04W 4/00 (2009.01);
U.S. Cl.
CPC ...
H04B 5/0081 (2013.01); H04B 5/0031 (2013.01); H04W 4/008 (2013.01);
Abstract

A communication device used for near filed communications (NFC). The device includes circuitry that generates a differential signal for communication with an analog front end of the device. The analog front end includes an impedance matching network and an antenna. The antenna is disposed at a predetermined distance away from the boundary of a battery compartment. The antenna forms a single loop around the battery compartment and is coupled to the matching network either in a differential manner or a single ended manner. The communication device includes a protective back casing that is either metallic or plastic in nature. With the single loop antenna configuration, both types of back covers enable efficient NFC.


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