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:
Dec. 25, 1990
Filed:
Apr. 14, 1989
John N Hines, Morristown, NJ (US);
GoldStar Products Company, Limited, Scottsdale, AZ (US);
Abstract
A portable radiotelephone unit is provided with an internal antenna in a space between an internal, electrically conductive enclosure for electrical apparatus of the unit and an external, electrically nonconductive housing of the unit. The antenna is a microstrip, folded-slot, edge-congruent device comprising a stack of alternate, electrically conductive layers and dielectric layers. A high frequency band antenna module and a low frequency band antenna module are included in the antenna, and all layers of that antenna are dimensioned to determine, at least in part, the frequency characteristics of the antenna. Perpendicular and parallel attachments are shown for a feed cable extending, via a hole in the enclosure, between the antenna and radiotelephone unit electrical apparatus within the enclosure.