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1. 发明授权

US06396442B1 Circularly polarized antenna device and radio communication apparatus using the same 有权
公开(公告)号：US06396442B1
公开(公告)日：2002-05-28
申请号：US09833960
申请日：2001-04-12
申请人： Kazunari Kawahata , Shigekazu Ito , Atsuyuki Yuasa , Hisashi Akiyama
发明人： Kazunari Kawahata , Shigekazu Ito , Atsuyuki Yuasa , Hisashi Akiyama
IPC分类号： H01Q138
CPC分类号： H01Q9/0428 , H01Q9/0407
摘要： A circularly polarized antenna device in which a recess is formed in the bottom surface of a dielectric base, and in which a feeder circuit is formed on an area of the top surface of a feeder circuit board covered by the recess. A shield for the feeder circuit is provided inside the recess. A feeder electrode is formed on an outer peripheral side surface of the dielectric base so as to be separated from a radiation electrode. A feeder wiring pattern which connects the feeder circuit and the feeder electrode so that they are in electrical conduction is formed on the top surface of the feeder circuit board. Electrical power supplied to the feeder electrode from the feeder circuit through the feeder wiring pattern is transmitted to the radiation electrode by capacitive coupling. Since the feeder circuit and the shield are accommodated inside the recess of the dielectric base, it is possible to restrict the bulkiness of the circularly polarized antenna device, and, thus, to make it thin. The invention aims at making the circularly polarized antenna device thinner.

2. 发明授权

US06392602B2 Circularly polarized wave antenna and device using the same 有权
标题翻译：圆极化天线及其使用的装置
公开(公告)号：US06392602B2
公开(公告)日：2002-05-21
申请号：US09821645
申请日：2001-03-29
申请人： Kazunari Kawahata , Shigekazu Ito , Atsuyuki Yuasa , Hisahi Akiyama
发明人： Kazunari Kawahata , Shigekazu Ito , Atsuyuki Yuasa , Hisahi Akiyama
IPC分类号： H01Q138
CPC分类号： H01Q9/0435 , H01Q1/243
摘要： A radiation electrode is formed on the upper face of the substantially columnar dielectric substrate. Feed electrodes for a fundamental mode and for a higher mode are formed on the side peripheral face of the dielectric substrate. Power is supplied through the respective feed electrodes to the radiation electrode via capacitive coupling. The radiation electrode has both of the functions in the fundamental and higher modes. Thus, the circular polarized wave antenna can be reduced in size. Furthermore, since a capacitive feeding system is employed as described above, the respective resonance frequencies in the fundamental and higher modes can be easily adjusted and set at predetermined frequencies. Also, the circularly polarized wave characteristics in the fundamental and higher modes can be easily enhanced, respectively.
摘要翻译：辐射电极形成在基本上柱状电介质基片的上表面上。在电介质基板的侧面形成有用于基模和高模的馈电电极。通过电容耦合将功率通过相应的馈电电极提供给辐射电极。辐射电极具有基本和更高模式的功能。因此，可以减小圆偏振波天线的尺寸。此外，由于如上所述采用电容馈电系统，所以可以容易地调整基准模式和较高模式的谐振频率并将其设置在预定频率。此外，基本和更高模式的圆偏振波特性可以分别容易地增强。

3. 发明授权

US06384786B2 Antenna device and communication apparatus 有权
标题翻译：天线装置和通信装置
公开(公告)号：US06384786B2
公开(公告)日：2002-05-07
申请号：US09760217
申请日：2001-01-11
申请人： Shigekazu Ito , Kazunari Kawahata
发明人： Shigekazu Ito , Kazunari Kawahata
IPC分类号： H01Q138
CPC分类号： H01Q1/2283 , H01Q1/22 , H01Q1/38 , H01Q5/40 , H01Q9/0414 , H01Q19/005 , H01Q21/30
摘要： A patch type radiation electrode is formed in the central area of the upper face of a dielectric substrate. First and second microstrip type radiation electrodes are formed on respective right and left sides of the patch type radiation electrode so as to sandwich the patch type radiation electrode. The first and second microstrip type radiation electrodes are symmetrical with respect to the patch type radiation electrode. If a microstrip type radiation electrode is formed on either one of the right and left sides of the patch type radiation electrode, the directivity of radio waves of the patch type radiation electrode become unsymmetrical, due to effects of the microstrip type radiation electrode. On the other hand, the directivity of radio waves of the patch type radiation electrode can be made symmetrical by forming the microstrip type radiation electrodes on both of the right and left sides of the patch type radiation electrode.
摘要翻译：在电介质基板的上表面的中央区域形成贴片型放射电极。第一和第二微带型辐射电极形成在贴片型辐射电极的相应的左侧和左侧，以夹住贴片型辐射电极。第一和第二微带型辐射电极相对于贴片型辐射电极是对称的。如果在贴片型放射电极的左右两侧形成有微带型的放射电极，则由于微带型放射电极的作用，贴片型放射电极的无线电波的方向性变得不对称。另一方面，通过在贴片型放射电极的左右两侧形成微带型放射电极，能够使贴片型放射电极的无线电波的方向性对称。

4. 发明申请

US20090115674A1 ANTENNA DEVICE AND WIRELESS COMMUNICATION APPARATUS 有权
标题翻译：天线设备和无线通信设备
公开(公告)号：US20090115674A1
公开(公告)日：2009-05-07
申请号：US12352888
申请日：2009-01-13
申请人： Shigeyuki Fujieda , Kazunari Kawahata , Kenichi Ishizuka
发明人： Shigeyuki Fujieda , Kazunari Kawahata , Kenichi Ishizuka
IPC分类号： H01Q9/00
CPC分类号： H01Q9/42 , H01Q1/243 , H01Q1/38 , H01Q5/321 , H01Q5/371 , H01Q9/0442 , H01Q9/145 , H01Q9/40
摘要： An antenna device and a wireless communication apparatus that are capable of obtaining a plurality of resonant frequencies and varying the plurality of resonant frequencies over a wide range are provided. A first antenna unit of an antenna device includes a feed electrode, a first radiation electrode, and a first frequency-variable circuit. The first frequency-variable circuit includes first and second reactance circuits each including a variable-capacitance diode. A control voltage is applied to the first frequency-variable circuit, and the resonant frequency of the first antenna unit can thus be varied. A second antenna unit includes the feed electrode, a second radiation electrode, and a second frequency-variable circuit. The second frequency-variable circuit includes first and third reactance circuits each including a variable-capacitance diode. A control voltage is applied to the second frequency-variable circuit, and the resonant frequency of the second antenna unit can thus be varied.
摘要翻译：提供能够获得多个谐振频率并且在宽范围内改变多个谐振频率的天线装置和无线通信装置。天线装置的第一天线单元包括馈电电极，第一辐射电极和第一可变频电路。第一变频电路包括各自包括可变电容二极管的第一和第二电抗电路。控制电压被施加到第一可变电路，因此可以改变第一天线单元的谐振频率。第二天线单元包括馈电电极，第二辐射电极和第二可变频电路。第二变频电路包括每个包括可变电容二极管的第一和第三电抗电路。控制电压被施加到第二可变电路，因此可以改变第二天线单元的谐振频率。

5. 发明授权

US07502638B2 Antenna device and radio communication apparatus using the same 有权
标题翻译：天线装置及其使用的无线通信装置
公开(公告)号：US07502638B2
公开(公告)日：2009-03-10
申请号：US11463615
申请日：2006-08-10
申请人： Mie Shimizu , Kazunari Kawahata
发明人： Mie Shimizu , Kazunari Kawahata
IPC分类号： H04M1/00
CPC分类号： H04B1/3833 , H01Q1/242 , H04B1/3805
摘要： An antenna device includes a signal-band separating circuit that is interposed between a communication antenna and a ground portion that are disposed on a circuit board. The communication antenna is connected to a communication circuit by a signal line via a signal-band separating circuit. A telecast-receiving antenna is connected to a broadcast circuit by a signal line. The signal-band separating circuit transmits signals in a frequency band for communication between the communication antenna and the communication circuit, and transmits signals in a frequency band for telecasts between the communication antenna and the ground portion. The antenna length (electrical length) of the telecast-receiving antenna is extended by adding the antenna length of the communication antenna in addition to the antenna length of the ground portion, thereby improving the antenna gain during telecast reception.
摘要翻译：天线装置包括置于通信天线和布置在电路板上的接地部分之间的信号带分离电路。通信天线通过信号线分离电路通过信号线连接到通信电路。电视广播接收天线通过信号线连接到广播电路。信号频带分离电路在通信天线和通信电路之间的通信频带中发送信号，并且在通信天线与接地部之间的电视广播的频带中发送信号。除了接地部分的天线长度之外，通过增加通信天线的天线长度来延长电视广播接收天线的天线长度（电长度），从而改善电视广播接收期间的天线增益。

6. 发明申请

US20090040120A1 ANTENNA STRUCTURE AND RADIO COMMUNICATION DEVICE USING THE SAME 审中-公开
标题翻译：使用该天线的天线结构和无线电通信装置
公开(公告)号：US20090040120A1
公开(公告)日：2009-02-12
申请号：US12261744
申请日：2008-10-30
申请人： Nobuhito Tsubaki , Kenichi Ishizuka , Kazunari Kawahata
发明人： Nobuhito Tsubaki , Kenichi Ishizuka , Kazunari Kawahata
IPC分类号： H01Q1/24 , H01Q1/38
CPC分类号： H01Q9/30 , H01Q1/2283 , H01Q9/0421 , H01Q9/0457
摘要： A radiation electrode is formed on a substrate of a surface mount antenna. One end of the radiation electrode forms a ground connection portion connected to ground, and the other end of the radiation electrode forms an open end. A ground connection electrode for connecting the open end of the radiation electrode to ground via a capacitance is provided on the substrate. No feeding electrode for feeding power to the radiation electrode is provided on the substrate. This surface mount antenna is mounted on a non-ground region (a region on which a ground electrode is not formed) of a board so as to constitute an antenna structure. On the board of the antenna structure, a feeding electrode for capacitively feeding power to the radiation electrode is provided at a position between the ground connection portion and the open end.
摘要翻译：辐射电极形成在表面安装天线的基板上。辐射电极的一端形成连接到地面的接地连接部分，辐射电极的另一端形成开口端。用于通过电容将辐射电极的开路端与接地连接的接地连接电极设置在基板上。在基板上不设置用于向辐射电极供电的供电电极。该表面安装天线安装在板的非接地区域（未形成接地电极的区域）上，以构成天线结构。在天线结构的基板上，在接地连接部分和开放端之间的位置处设置用于向辐射电极供电的供电电极。

7. 发明授权

US06677902B2 Circularly polarized antenna apparatus and radio communication apparatus using the same 有权
标题翻译：圆极化天线装置及其使用的无线通信装置
公开(公告)号：US06677902B2
公开(公告)日：2004-01-13
申请号：US10156861
申请日：2002-05-30
申请人： Hisashi Akiyama , Kazunari Kawahata , Shigehazu Ito
发明人： Hisashi Akiyama , Kazunari Kawahata , Shigehazu Ito
IPC分类号： H01Q138
CPC分类号： H01Q1/2283 , H01Q1/22 , H01Q9/0428 , H01Q9/045 , H01Q9/0457
摘要： A circularly polarized antenna apparatus includes a radiating electrode and a ground electrode which are provided on a dielectric substrate. A degeneracy-splitting elements is also provided on the substrate to cause two resonant currents split between degenerate modes to be excited in the radiating electrode. The radiating electrodes includes a primary radiating electrode on a principal surface of the substrate, and secondary radiating electrode on side surfaces of the substrate, thus increasing the area of the radiating electrode. Therefore, the conductor loss of the primary radiating electrode is reduced and the antenna gain is increased.
摘要翻译：圆极化天线装置包括设置在电介质基板上的辐射电极和接地电极。还在衬底上提供了简并分解元件，以使在退化模式之间分离的两个谐振电流在辐射电极中被激发。辐射电极包括在基板的主表面上的主辐射电极和在衬底的侧表面上的次级辐射电极，从而增加了辐射电极的面积。因此，主辐射电极的导体损耗减小，天线增益增加。

8. 发明授权

US06452548B2 Surface mount antenna and communication device including the same 有权
标题翻译：表面安装天线和包括它的通信设备
公开(公告)号：US06452548B2
公开(公告)日：2002-09-17
申请号：US09776600
申请日：2001-02-02
申请人： Shoji Nagumo , Kazunari Kawahata , Nobuhito Tsubaki , Takashi Ishihara , Kengo Onaka
发明人： Shoji Nagumo , Kazunari Kawahata , Nobuhito Tsubaki , Takashi Ishihara , Kengo Onaka
IPC分类号： H01Q138
CPC分类号： H01Q9/0442 , H01Q1/38 , H01Q5/357 , H01Q5/378 , H01Q9/0421
摘要： In a feeding radiation electrode of a surface mount antenna, a series inductance component such as a meander pattern is formed locally in a maximum resonance current part in a high-order mode (second-order mode) so as to locally form a series inductance component therein thereby making the maximum resonance current part have a greater electrical length per unit physical length than the other parts. This makes it possible to control the difference between the resonance frequency in a fundamental mode and the resonance frequency in the high-order mode over a large range. Furthermore, it is possible to vary the resonance frequency in the second-order mode independently of the resonance frequency in the fundamental mode by varying the number of lines or the line-to-line distance of the meander pattern thereby varying the value of the series inductance component. Thus, it is possible to easily and efficiently design a surface mount antenna having a frequency characteristic which satisfies requirements needed in multi-band applications without having to change the basic design.
摘要翻译：在表面贴装天线的馈电辐射电极中，在高阶模式（二阶模式）中的最大谐振电流部分局部地形成诸如曲折图案的串联电感分量，以局部形成串联电感分量其中使得最大谐振电流部分具有比其他部分更大的每单位物理长度的电长度。这使得可以在大范围内控制基模中的谐振频率与高阶模式中的谐振频率之间的差异。此外，可以通过改变曲折图案的线数或线间距离来改变基本模式中的共振频率，从而改变二阶模式中的谐振频率，从而改变系列的值电感分量。因此，可以容易且有效地设计具有满足多频带应用要求的频率特性的表面贴装天线，而不必改变基本设计。

9. 发明授权

US06433745B1 Surface-mounted antenna and wireless device incorporating the same 有权
标题翻译：表面安装天线和包含其的无线设备
公开(公告)号：US06433745B1
公开(公告)日：2002-08-13
申请号：US09832714
申请日：2001-04-11
申请人： Shoji Nagumo , Kazunari Kawahata , Nobuhito Tsubaki , Kengo Onaka , Takashi Ishihara
发明人： Shoji Nagumo , Kazunari Kawahata , Nobuhito Tsubaki , Kengo Onaka , Takashi Ishihara
IPC分类号： H01Q138
CPC分类号： H01Q1/243 , H01Q1/38 , H01Q5/321 , H01Q5/371 , H01Q5/378 , H01Q9/0414 , H01Q19/005
摘要： A multi-band surface-mounted antenna is formed by disposing a feeding element and a non-feeding element with a distance therebetween on a dielectric base member. The feeding element is formed by extending a feeding radiation electrode from a feeding terminal. The non-feeding element is a branched element formed by branching and extending a first radiation electrode and a second radiation electrode of the non-feeding side from a ground terminal side. The single surface-mounted antenna includes the three radiation electrodes. Thus, the antenna can be easily adapted to multi-bands. In addition, the resonance waves of the three radiation electrodes can be controlled mutually independently. As a result, only a frequency band selected from a plurality of required frequency bands is brought into a multi-resonance state so that the frequency band can be broadened.
摘要翻译：通过在电介质基底构件上设置一定距离的馈电元件和非馈电元件来形成多带表面安装天线。馈电元件通过从馈电端子延伸馈电辐射电极而形成。非馈电元件是通过从接地端子侧分支和延伸非馈电侧的第一辐射电极和第二辐射电极而形成的分支元件。单个表面安装天线包括三个辐射电极。因此，天线可以容易地适应于多频带。此外，可以相互独立地控制三个辐射电极的谐振波。结果，只有从多个所需频带中选择的频带才能进入多谐振状态，从而能够扩大频带。

10. 发明授权

US5959582A Surface mount type antenna and communication apparatus 失效
标题翻译：表面贴装式天线及通讯装置
公开(公告)号：US5959582A
公开(公告)日：1999-09-28
申请号：US980717
申请日：1997-12-01
申请人： Kazunari Kawahata , Ken Okada
发明人： Kazunari Kawahata , Ken Okada
IPC分类号： H01Q1/24 , H01Q1/38 , H01Q9/04 , H01Q13/08 , H01Q1/36
CPC分类号： H01Q1/38 , H01Q1/243 , H01Q9/0407
摘要： To reduce the manufacturing cost by reducing the number of surfaces of a dielectric base on which various patterns are formed, and to improve the ease of impedance matching while avoiding an increase in size. Each of a feed electrode and a ground electrode is formed between a position on an end surface and a position on a lower surface of a dielectric base. A radiation electrode is formed, which extends from a position on an upper surface to positions on the upper and lower surfaces via another end surface of the dielectric base.
摘要翻译：通过减少形成各种图案的电介质基底的表面数量来降低制造成本，并且提高阻抗匹配的容易性，同时避免尺寸增加。馈电电极和接地电极中的每一个形成在电介质基底的端面上的位置和下表面的位置之间。形成辐射电极，其通过电介质基底的另一端面从上表面的位置延伸到上表面和下表面上的位置。

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