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:
Mar. 06, 2007
Filed:
Nov. 25, 2003
Lorenzo A. Ponce DE Leon, Lake Worth, FL (US);
Alejandro Candal, Davie, FL (US);
John P. Chenoweth, Coral Springs, FL (US);
David Hartley Minasi, Fort Lauderdale, FL (US);
Lorenzo A. Ponce De Leon, Lake Worth, FL (US);
Alejandro Candal, Davie, FL (US);
John P. Chenoweth, Coral Springs, FL (US);
David Hartley Minasi, Fort Lauderdale, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A multiband element antenna () used in combination with a unique metal chassis design that enhances antenna performance and that enables the design of a compact and efficient antenna system. A cellular flip phone () that has a conductive chassis includes a flip up antenna () that pivots between an extended and a retracted position. The antenna () pivots at a point that is located on one edge of the top of the cell phone body (). The conductive chassis of the flip cover () is grounded to the flip phone body () at a single point or single surface that is substantially opposite the antenna RF feed (). Conductive surfaces of the cellular flip phone body () are grounded at a single point that is near the antenna RF feed point (). This grounding arrangement has been found to control the flow of induced currents on the conductive portions of the flip cover () and body (), thereby improving the performance of the device's antenna ().