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1. 发明授权

US06522300B2 Antenna device for mobile tele-communication terminal 失效
公开(公告)号：US06522300B2
公开(公告)日：2003-02-18
申请号：US10029389
申请日：2001-12-28
申请人： Tadashi Oshiyama , Atsushi Sato , Katsutoshi Okubo , Takao Kawahara , Seiji Gou
发明人： Tadashi Oshiyama , Atsushi Sato , Katsutoshi Okubo , Takao Kawahara , Seiji Gou
IPC分类号： H01Q124
CPC分类号： H01Q21/28 , H01Q1/243 , H01Q1/244
摘要： A whip antenna is movable between a first position corresponding to a state in which the whip antenna is extended from a casing of the mobile communication terminal, and a second position corresponding to a state the whip antenna is accommodated within the casing. A built-in antenna is disposed within the casing. A power feeding circuit is disposed within the casing. A first matching circuit has a first impedance, through which the power feeding circuit and the whip antenna are electrically connected when the whip antenna is placed at the first position. A second matching circuit has a second impedance which is higher than the first impedance, through which the whip antenna is grounded when the whip antenna is placed at the second position. A switch mechanism is opened so that the built-in antenna is electrically disconnected from the power feeding circuit when the whip antenna is placed at the first position, and closed so that the built-in antenna is electrically connected to the power feeding circuit.

2. 发明授权

US07042400B2 Multi-frequency antenna 失效
标题翻译：多频天线
公开(公告)号：US07042400B2
公开(公告)日：2006-05-09
申请号：US10980240
申请日：2004-11-04
申请人： Katsutoshi Okubo , Tadashi Oshiyama
发明人： Katsutoshi Okubo , Tadashi Oshiyama
IPC分类号： H01Q1/38
CPC分类号： H01Q21/28 , H01Q1/243 , H01Q1/38 , H01Q5/371 , H01Q5/40 , H01Q9/0421
摘要： A dielectric carrier is disposed on a substrate and formed with a recess. A first antenna element is provided on at least one face of the carrier and electrically connected to the substrate. A second antenna element is provided as a ceramic antenna and disposed in the recess. A first dielectric layer is provided between the first antenna element and the second antenna element. A second dielectric layer is provided between the substrate and the second antenna element. The recess is formed at a position which is sufficiently away from a power supply point to the first antenna element and a point at which a potential of the first antenna element has a maximum value.
摘要翻译：电介质载体设置在基板上并形成有凹部。第一天线元件设置在载体的至少一个表面上并电连接至基板。第二天线元件设置为陶瓷天线并设置在凹部中。第一介电层设置在第一天线元件和第二天线元件之间。第二介电层设置在基板和第二天线元件之间。凹部形成在距离第一天线元件的供电点足够远的位置和第一天线元件的电位具有最大值的位置处。

3. 发明申请

US20050099344A1 Multi-frequency antenna 失效
标题翻译：多频天线
公开(公告)号：US20050099344A1
公开(公告)日：2005-05-12
申请号：US10980240
申请日：2004-11-04
申请人： Katsutoshi Okubo , Tadashi Oshiyama
发明人： Katsutoshi Okubo , Tadashi Oshiyama
IPC分类号： H01Q1/24 , H01Q1/38 , H01Q1/52 , H01Q5/10 , H01Q5/307 , H01Q9/04 , H01Q13/08 , H01Q21/28
CPC分类号： H01Q21/28 , H01Q1/243 , H01Q1/38 , H01Q5/371 , H01Q5/40 , H01Q9/0421
摘要： A dielectric carrier is disposed on a substrate and formed with a recess. A first antenna element is provided on at least one face of the carrier and electrically connected to the substrate. A second antenna element is provided as a ceramic antenna and disposed in the recess. A first dielectric layer is provided between the first antenna element and the second antenna element. A second dielectric layer is provided between the substrate and the second antenna element. The recess is formed at a position which is sufficiently away from a power supply point to the first antenna element and a point at which a potential of the first antenna element has a maximum value.
摘要翻译：电介质载体设置在基板上并形成有凹部。第一天线元件设置在载体的至少一个表面上并电连接至基板。第二天线元件设置为陶瓷天线并设置在凹部中。第一介电层设置在第一天线元件和第二天线元件之间。第二介电层设置在基板和第二天线元件之间。凹部形成在距离第一天线元件的供电点足够远的位置和第一天线元件的电位具有最大值的位置处。

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