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:
Aug. 28, 2001
Filed:
Jan. 21, 2000
Applicant:
Inventors:
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 1/24 ;
U.S. Cl.
CPC ...
H01Q 1/24 ;
Abstract
A communications device with a quarter wave antenna (,) is provided with a quarter wavelength choke that is formed by a conductive coating (,) applied to the inner wall of the housing (,) to the communications device. The conductive coating (,) is electrically coupled as a ground to antenna (,) via the ground to a printed circuit board (,) and a conductive surface to a dividing wall (,) acting as a suspended base by which to support the circuit board (,). The conductive coating (,) is extended from the antenna base over a length equal to a quarter wavelength.