Title:
アンテナ装置及びそれを用いた無線通信機器
Document Type and Number:
Japanese Patent JP4868128
Kind Code:
B2
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 antenna 101 being a chip-type antenna operating in a GSM band, second antenna 102 being a pattern antenna operating in DCS and PCS bands, third antenna 103 being a layer-stacked antenna operating in an UMTS band, all being mounted on a substrate 100. The second antenna 102 is connected to a line 105 extending from a power feeding port 104 connected to the first antenna 101. A gap is interposed between the second antenna 102 and third antenna 103 wherein the second antenna 102 is capacitively coupled to the third antenna 103 on the substrate 100 with no antenna switch being provided.
Inventors:
Hiroshi Aoyama
Kazuo Kazama
Kazuo Kazama
Application Number:
JP2006107178A
Publication Date:
February 01, 2012
Filing Date:
April 10, 2006
Export Citation:
Assignee:
Hitachi Metals Co., Ltd.
International Classes:
H01Q1/38; H01Q21/30; H01Q5/10; H01Q5/371; H01Q5/378; H01Q11/08; H04B1/38; H04B1/3822
Domestic Patent References:
| JP2006074750A | ||||
| JP2002111344A | ||||
| JP11004117A | ||||
| JP2004186731A | ||||
| JP2004312628A | ||||
| JP2003124730A | ||||
| JP2004032312A | ||||
| JP2004040361A |
Foreign References:
| WO2002089249A1 |
Attorney, Agent or Firm:
Kiyoshi Kurihara