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:
Jul. 17, 2001
Filed:
Jan. 28, 2000
Applicant:
Inventor:
Masaki Shibata, Ise, JP;
Assignee:
NGK Spark Plug Co., Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 1/38 ;
U.S. Cl.
CPC ...
H01Q 1/38 ;
Abstract
A micro-strip antenna includes a dielectric substrate, a radiation conductor disposed on one main face of the dielectric substrate, a ground conductor disposed on the opposite main face of the dielectric substrate, and at least one reactance compensation electrode disposed on a side face of the dielectric substrate and connected to the radiation conductor or the ground conductor. Through adjustment of the shape and length of the reactance compensation electrode, the input impedance of the micro-strip antenna is matched to a feed line. The reactance compensation electrode serves as a reactance compensation circuit element.