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. 18, 2015

Filed:

Dec. 06, 2012
Applicant:

Microsoft Corporation, Redmond, WA (US);

Inventors:

Benjamin Shewan, Redmond, WA (US);

Javier Rodriguez De Luis, Redmond, WA (US);

Alireza Mahanfar, Bellevue, WA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/00 (2006.01); H01Q 1/24 (2006.01); H01Q 9/04 (2006.01); H01Q 9/42 (2006.01); H01Q 21/28 (2006.01);
U.S. Cl.
CPC ...
H01Q 1/243 (2013.01); H01Q 9/0421 (2013.01); H01Q 9/42 (2013.01); H01Q 21/28 (2013.01);
Abstract

A multiband monopole antenna for a mobile device is disclosed that can be dynamically switched between a quarter-wave monopole antenna and a half-wave folded monopole antenna. In one embodiment, a radiator element can be built into at least part of a decorative trim on an outer casing of the mobile device. A circuit element embedded into the radiator element can electrically connect or disconnect a radiator element tip from a grounded portion of the decorative trim. In some embodiments, the circuit element can be a switch or a passive filter element, such as an inductor/capacitive-based filter. In other embodiments, the circuit element can be a tunable filter circuit whose impedance can be dynamically changed.


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