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:
May. 10, 2005
Filed:
Nov. 18, 2002
Jinichi Inoue, Warabi, JP;
Jinichi Inoue, Warabi, JP;
Nippon Antena Kabushiki Kaisha, Tokyo, JP;
Abstract
An object of the present invention is to provide a small composite antenna that is capable of operating in a plurality of different frequency bands. A GPS first loop antennais formed on a dielectric substrate. A VICS radio wave beacon second loop antennais formed on substantially the same axis within the first loop antenna. In addition, an ETC patch antennais formed in the bottom face of a recessprovided substantially in the center of the dielectric substrate. An earth pattern is formed over the whole of the underside of the dielectric substrate. An arc-shaped first feed pattern is electromagnetically coupled to the first loop antennaso as to supply electricity thereto and cause same to operate as a right-handed circularly polarized antenna. An arc-shaped second feed pattern is electromagnetically coupled to the second loop antennaso as to supply electricity thereto. Electricity is supplied by a coaxial cable to the patch antennato cause same to operate as a right-handed circularly polarized antenna.