Invention Grant
- Patent Title: Antenna device and portable wireless terminal equipped with same
- Patent Title (中): 天线设备和配备相同的便携式无线终端
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Application No.: US14001664Application Date: 2012-04-17
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Publication No.: US09444150B2Publication Date: 2016-09-13
- Inventor: Takanori Hirobe , Hiroyuki Uejima , Yoshio Koyanagi , Hiroshi Satou
- Applicant: Takanori Hirobe , Hiroyuki Uejima , Yoshio Koyanagi , Hiroshi Satou
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Seed IP Law Group PLLC
- Priority: JP2011-093744 20110420
- International Application: PCT/JP2012/002654 WO 20120417
- International Announcement: WO2012/144198 WO 20121026
- Main IPC: H01Q21/28
- IPC: H01Q21/28 ; H01Q1/24 ; H01Q1/52 ; H01Q5/335 ; H01Q5/35
Abstract:
A first connection circuit (108) is adjusted to cancel out mutual coupling impedance occurring between a first antenna element (106) in a first frequency band and a second antenna element (107) in a second frequency band, and reduces a degradation occurring due to the coupling between the antenna elements. A second frequency band cutoff circuit (111) for the second frequency band is provided between the first antenna element (106) and the first feeding portion (104).
Public/Granted literature
- US20130328742A1 ANTENNA DEVICE AND PORTABLE WIRELESS TERMINAL EQUIPPED WITH SAME Public/Granted day:2013-12-12
Information query
