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:
Nov. 30, 2010
Filed:
Dec. 05, 2005
Kiyoshi Egawa, Kanagawa, JP;
Yoshio Koyanagi, Kanagawa, JP;
Hiroshi Haruki, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A multi-band antenna can be realized by using a common antenna element with a simple configuration. A radio antenna unit includes a ground conductor plateprovided to a casing of a radio device and having a ground potential, a first radio circuithandling a system in a first frequency band and a second radio circuithandling a system in a second frequency band lower than the first frequency band, which are provided in the ground conductor plate, a first feeding lineconnected to the first radio circuitand being a coaxial transmission line having an outer conductorthat is arranged along the ground conductor plate, an antenna elementconnected to the first feeding lineand the outer conductorrespectively, and arranged along the ground conductor plate, and a second feeding linefor connecting the second radio circuitand the outer conductor, wherein the first feeding linefeeds a high frequency power input from the first radio circuitand the second feeding linefeeds a high frequency power input from the second radio circuit