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. 05, 2010
Filed:
Mar. 19, 2007
Hiroyuki Aoyama, Saitama, JP;
Kazuo Kazama, Saitama, JP;
Hiroyuki Aoyama, Saitama, JP;
Kazuo Kazama, Saitama, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
An antenna device is provided which is capable of operating in a wider band of frequencies (in a plurality of transmitting and receiving frequency bands), achieving an excellent gain, maintaining non-directivity of vertically polarized waves in each of the transmitting and receiving frequency bands, and saving space. The antenna device includes the first antennabeing a chip-type antenna operating in a GSM band, second antennabeing a pattern antenna operating in DCS and PCS bands, third antennabeing a layer-stacked antenna operating in an UMTS band, all being mounted on a substrateThe second antennais connected to a lineextending from a power feeding portconnected to the first antennaA gap is interposed between the second antennaand third antennawherein the second antennais capacitively coupled to the third antennaon the substratewith no antenna switch being provided.