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:
Jan. 07, 1992
Filed:
Oct. 23, 1989
Applicant:
Inventors:
Assignees:
NEC Corporation, both of, JP;
Nippon Telegraph and Telephone Corporation, both of, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q / ;
U.S. Cl.
CPC ...
343702 ; 343745 ; 455347 ;
Abstract
Portable radio equipment which is thin enough to enhance portability and, yet, has a sufficiently high antenna gain. The equipment has an antenna which is made up of a pair of metal plates located face-to-face, and a short-circuiting member for short-circuiting the metal plates. A circuit board loaded with radio circuitry is interposed between two metal plates with the radio circuitry being connected to the antenna. A capacitor is connected between the metal plates to lower the resonance frequency of the antenna, as needed. A circular cell for powering the equipment is located in a cell receiving portion near the short-circuiting member.