专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5801660A Antenna apparatuus using a short patch antenna 失效
标题翻译：使用短贴片天线的天线装置
公开(公告)号：US5801660A
公开(公告)日：1998-09-01
申请号：US595034
申请日：1996-01-31
申请人： Masataka Ohtsuka , Yoji Isota , Shintaro Nakahara , Makoto Matsunaga , Yoshihiko Konishi
发明人： Masataka Ohtsuka , Yoji Isota , Shintaro Nakahara , Makoto Matsunaga , Yoshihiko Konishi
IPC分类号： H01Q13/08 , H01Q9/04 , H01Q1/38
CPC分类号： H01Q9/0471 , H01Q9/0414 , H01Q9/0421 , H01Q9/0457
摘要： A planar antenna apparatus adapted to excite a small radiating element by electromagnetic coupling is provided. The antenna apparatus has a triplate line including ground conductor plates formed on the upper and lower surfaces of a dielectric substrate and a feed line sandwiched by the ground conductor plates. A coupling hole is formed through one of the ground conductor plates, and a mechanism is provided near the coupling hole for electrically interconnecting the two ground conductor plates. A radiating section coupled to the feed line through the coupling hole has one end grounded to form a short patch antenna. The short patch antenna has a size substantially half the size of a patch antenna. Also, the connecting mechanism prevents unnecessary coupling.
摘要翻译：提供一种适于通过电磁耦合激励小辐射元件的平面天线装置。天线装置具有三面板线，其包括形成在电介质基板的上表面和下表面上的接地导体板和由接地导体板夹持的馈电线。通过一个接地导体板形成耦合孔，并且在耦合孔附近设置有用于将两个接地导体板电连接的机构。通过耦合孔耦合到馈电线的辐射部分具有一端接地以形成短贴片天线。短贴片天线的尺寸基本上是贴片天线尺寸的一半。此外，连接机构防止不必要的联接。

2. 发明授权

US5798734A Antenna apparatus, method of manufacturing same and method of designing same 失效
标题翻译：天线装置及其制造方法及其设计方法
公开(公告)号：US5798734A
公开(公告)日：1998-08-25
申请号：US708225
申请日：1996-09-06
申请人： Masataka Ohtsuka , Yoji Isota , Makoto Matsunaga , Yoshihiko Konishi , Shintaro Nakahara
发明人： Masataka Ohtsuka , Yoji Isota , Makoto Matsunaga , Yoshihiko Konishi , Shintaro Nakahara
IPC分类号： H01Q3/26 , H01Q9/04 , H01Q13/08 , H01Q13/18 , H01Q21/00 , H01Q1/38
CPC分类号： H01Q9/0407 , H01Q9/0414
摘要： An antenna apparatus, a method of manufacturing the same, and a method of designing the same, are provided. A first dielectric layer, first dielectric film, second dielectric layer and second dielectric film are laminated on a flat metal plate in the mentioned order. A radiation element fed through a feeding line is arranged below another radiation element that is not fed through the feeding line. The feeding line forms, along its overall length, a microstrip line having the dielectric layer sandwiched by the feeding line and the flat conductive plate, resulting in no model change from the microstrip line to a triplate line or vice versa, with reduced feeding loss. The thickness of the dielectric layer is so set as to be sufficiently small compared with the used wavelength, to thereby suppress the radiation from discontinuities lying on the microstrip line constituted of the feeding line and flat conductive plate. This eliminates the need for a metal shield plate to prevent unnecessary radiation from the feeding line.
摘要翻译：提供了一种天线装置及其制造方法及其设计方法。第一电介质层，第一电介质膜，第二电介质层和第二电介质膜按照上述顺序层叠在平坦的金属板上。通过馈电线馈送的辐射元件布置在不通过馈电线馈送的另一辐射元件下方。馈电线沿着其整个长度形成具有被馈电线和平板导电板夹持的电介质层的微带线，导致没有模型从微带线变为三板线，反之亦然，具有减少的馈电损耗。电介质层的厚度与使用波长相比设定得足够小，从而抑制位于由馈电线和平板导电板构成的微带线上的不连续的辐射。这消除了对金属屏蔽板的需要，以防止来自馈线的不必要的辐射。

3. 发明授权

US5926136A Antenna apparatus 失效
标题翻译：天线装置
公开(公告)号：US5926136A
公开(公告)日：1999-07-20
申请号：US852599
申请日：1997-05-07
申请人： Masataka Ohtsuka , Yoshihiko Konishi , Makoto Matsunaga , Shintaro Nakahara
发明人： Masataka Ohtsuka , Yoshihiko Konishi , Makoto Matsunaga , Shintaro Nakahara
IPC分类号： H01Q15/08 , H01Q1/32 , H01Q3/01 , H01Q3/02 , H01Q9/04 , H01Q13/08
CPC分类号： H01Q9/0407 , H01Q3/02 , H01Q9/0414
摘要： In an antenna apparatus in which n dielectric layers with .epsilon..sub.r1 -.epsilon..sub.rn in dielectric constants are respectively stacked between a ground plate and a major radiating conductor, the thickness t.sub.1 -t.sub.n of the dielectric layers are determined so as to satisfy substantially the following equations:(t.sub.1 +t.sub.2 + . . . +t.sub.n)/(t.sub.1 /.epsilon..sub.r1 +t.sub.2 /.epsilon..sub.r2 + . . . +t.sub.n /.epsilon..sub.rn)=.epsilon..sub.reff, andt.sub.1 +t.sub.2 + . . . t.sub.n =t.sub.minwith respect to a dielectric constant .epsilon..sub.reff of the antenna defined for a desired beam width, and the minimum value t.sub.min of the dielectric layers capable of ensuring a desired operation band and low reflection losses in this dielectric constant .epsilon..sub.reff. Thus, the thinnest antenna structure which can ensure a desired radiation in directions of low elevation angles, and desired operation bands and low reflection losses can be made.
摘要翻译：在其中介电常数中的ε1〜ε1的n个电介质层分别层叠在接地板和主辐射导体之间的天线装置中，电介质层的厚度t1-tn被确定为基本上满足以下等式：（t1 + t2 + ... + tn）/（t1 / epsilon r1 + t2 / epsilon r2 + ... + tn / epsilon rn）=εreff和t1 + t2 +。。。相对于为期望波束宽度定义的天线的介电常数εreff，以及能够确保期望的操作频带的介电层的最小值tmin和在该介电常数εref中的低反射损耗，tn = tmin。因此，可以制造能够确保在低仰角方向上期望的辐射以及期望的操作带和低反射损耗的最薄的天线结构。

4. 发明授权

US5784034A Antenna apparatus 失效
标题翻译：天线装置
公开(公告)号：US5784034A
公开(公告)日：1998-07-21
申请号：US789685
申请日：1997-01-27
申请人： Yoshihiko Konishi , Masataka Ohtsuka , Yoshiyuki Chatani , Makoto Matsunaga , Shuji Urasaki , Takashi Katagi
发明人： Yoshihiko Konishi , Masataka Ohtsuka , Yoshiyuki Chatani , Makoto Matsunaga , Shuji Urasaki , Takashi Katagi
IPC分类号： H01Q21/08 , H01Q1/32 , H01Q1/36 , H01Q9/30 , H01Q9/32 , H01Q9/42 , H01Q11/08 , H01Q13/08 , H01Q21/00 , H01Q21/24 , H01Q21/29
CPC分类号： H01Q1/362 , H01Q21/29
摘要： Herein is revealed a helical antenna apparatus wherein the direction of beam radiation hardly changes even if the frequency in use changes. Two helical antennas which are wound with two conductive wires spirally, respectively, at equal intervals with a specified pitch .alpha. in the form of a cylinder are disposed along the length of the helical antennas so that the axes thereof substantially coincide with each other. By determining the lengths of the feeders of the respective helical antennas appropriately in order to set the phase of supplied power, it is possible to form the beam of signals radiated into space in the shape of conical beam having a directivity oriented obliquely upward. Additionally, it is possible to obtain the conical beam in which the direction of beam radiation does not change even if the frequency in use is changed.
摘要翻译：这里揭示了一种螺旋天线装置，其中即使所使用的频率发生变化，射束辐射的方向也几乎不变化。沿着螺旋天线的长度，以螺旋形的方式螺旋地缠绕有两个螺旋天线的两个螺旋天线分别以等间隔以特定的圆柱形形式的间距α设置，使得其轴线基本上彼此重合。通过适当地确定各个螺旋天线的馈线的长度以设定所提供的功率的相位，可以形成辐射到具有倾斜向上定向的锥形束形状的空间中的信号光束。此外，即使改变使用频率，也可以获得束辐射方向不变化的锥形束。

5. 发明授权

US5243353A Circularly polarized broadband microstrip antenna 失效
标题翻译：圆极化宽带微带天线
公开(公告)号：US5243353A
公开(公告)日：1993-09-07
申请号：US605706
申请日：1990-10-30
申请人： Shintaro Nakahara , Makoto Matsunaga
发明人： Shintaro Nakahara , Makoto Matsunaga
IPC分类号： H01Q13/08 , H01Q9/04
CPC分类号： H01Q9/0414 , H01Q9/0457
摘要： A circularly polarized microstrip antenna has a ground plane, a disk-shaped driven element, and a disk-shaped parasitic element. The driven element is located between the ground plane and the parasitic element and is parallel to both of them. The driven element and parasitic element both have diametrically opposed notches, or diametrically opposed projections, or diametrically opposed notches and diametrically opposed projections. The driven element is coupled to a conducting strip that parallels the ground plane to form a microstrip transmission line.
摘要翻译：圆极化微带天线具有接地平面，盘形从动元件和盘形寄生元件。驱动元件位于接地平面和寄生元件之间，并且平行于它们。从动元件和寄生元件都具有直径相对的凹口，或直径相对的突起，或直径相对的凹口和直径相对的突起。驱动元件耦合到与接地平面平行的导电条，以形成微带传输线。

6. 发明授权

US6043776A Mobile satellite communication system 失效
标题翻译：移动卫星通信系统
公开(公告)号：US6043776A
公开(公告)日：2000-03-28
申请号：US33169
申请日：1998-03-02
申请人： Isamu Chiba , Takashi Katagi , Shuji Urasaki , Yoshihiko Konishi , Makoto Matsunaga , Akio Iso
发明人： Isamu Chiba , Takashi Katagi , Shuji Urasaki , Yoshihiko Konishi , Makoto Matsunaga , Akio Iso
IPC分类号： H04B7/26 , H04B7/185 , H04B7/204
CPC分类号： H04B7/2041
摘要： A mobile satellite communication system including an artificial satellite which is situated in a satellite orbit and develops an active phased array antenna so as to accomplish a line to a terrestrial station using a portable terminal in a specific area. As a result, a service that satisfies a demand for communication in the specific area can be realized.
摘要翻译：一种移动卫星通信系统，其包括位于卫星轨道中的人造卫星，并且开发有源相控阵天线，以便在特定区域中使用便携式终端完成到地面站的线路。结果，可以实现满足特定区域中的通信需求的服务。

7. 发明申请

US20100008736A1 ROTARY CUTTING TOOL 失效
标题翻译：旋转切割工具
公开(公告)号：US20100008736A1
公开(公告)日：2010-01-14
申请号：US12444659
申请日：2008-02-14
申请人： Makoto Matsunaga , Munehiro Nakamura , Shoichi Takahashi
发明人： Makoto Matsunaga , Munehiro Nakamura , Shoichi Takahashi
IPC分类号： B23C5/10 , B23B51/02
CPC分类号： B23C5/10 , B23C2210/282 , B23C2265/08 , Y10T407/1948 , Y10T407/1954 , Y10T408/9097
摘要： There is provided an exceptionally practical rotary cutting tool allowing the life of the tool to be prolonged. The rotary cutting tool has a plurality of helically shaped swarf discharge flutes (2) formed on a periphery of a tool body (1) from a leading end towards a trailing end, and a peripheral blade (4) formed on an intersecting ridgeline of a rake surface (3) of the swarf discharge flutes (2) and the peripheral surface of the tool body (1). A back taper part (B), on which an outside diameter (D1) of the peripheral blade (4) and an inside diameter (D2) of the tool body (1) gradually decrease from the leading end of the tool towards the trailing end, is provided to the leading end of the tool body (1).
摘要翻译：提供了一种非常实用的旋转切削刀具，可延长刀具的使用寿命。所述旋转切削工具具有从前端向后端形成在工具主体（1）的周边上的多个螺旋状的切屑排出槽（2），以及形成在切屑排出槽（2）的前表面（3）和工具体（1）的周面。其中外周刀片（4）的外径（D1）和工具主体（1）的内径（D2）从工具的前端向后端逐渐减小的后锥形部分（B）被设置在工具主体（1）的前端。

8. 发明授权

US08186914B2 Rotary cutting tool 失效
标题翻译：旋转刀具
公开(公告)号：US08186914B2
公开(公告)日：2012-05-29
申请号：US12444659
申请日：2008-02-14
申请人： Makoto Matsunaga , Munehiro Nakamura , Shoichi Takahashi
发明人： Makoto Matsunaga , Munehiro Nakamura , Shoichi Takahashi
IPC分类号： B23C5/10
CPC分类号： B23C5/10 , B23C2210/282 , B23C2265/08 , Y10T407/1948 , Y10T407/1954 , Y10T408/9097
摘要： There is provided an exceptionally practical rotary cutting tool allowing the life of the tool to be prolonged. The rotary cutting tool has a plurality of helically shaped swarf discharge flutes (2) formed on a periphery of a tool body (1) from a leading end towards a trailing end, and a peripheral blade (4) formed on an intersecting ridgeline of a rake surface (3) of the swarf discharge flutes (2) and the peripheral surface of the tool body (1). A back taper part (B), on which an outside diameter (D1) of the peripheral blade (4) and an inside diameter (D2) of the tool body (1) gradually decrease from the leading end of the tool towards the trailing end, is provided to the leading end of the tool body (1).
摘要翻译：提供了一种非常实用的旋转切削刀具，可延长刀具的使用寿命。所述旋转切削工具具有从前端向后端形成在工具主体（1）的周边上的多个螺旋状的切屑排出槽（2），以及形成在切屑排出槽（2）的前表面（3）和工具体（1）的周面。其中外周刀片（4）的外径（D1）和工具主体（1）的内径（D2）从工具的前端向后端逐渐减小的后锥形部分（B）被设置在工具主体（1）的前端。

9. 发明授权

US4987421A Microstrip antenna 失效
标题翻译：微带天线
公开(公告)号：US4987421A
公开(公告)日：1991-01-22
申请号：US363050
申请日：1989-06-08
申请人： Yonehiko Sunahara , Makoto Matsunaga , Seiji Mano , Hiroyuki Ohmine , Makio Tsuchiya
发明人： Yonehiko Sunahara , Makoto Matsunaga , Seiji Mano , Hiroyuki Ohmine , Makio Tsuchiya
IPC分类号： H01Q9/04
CPC分类号： G06K19/07786 , H01Q9/0442 , H01Q9/0464
摘要： A microstrip antenna has an annular radiation conductor with a central opening and a microwave circuit for connecting the annular radiation conductor to a feeder to thereby facilitate impedance matching.
摘要翻译：微带天线具有带有中心开口的环形辐射导体和用于将环形辐射导体连接到馈线的微波电路，从而有助于阻抗匹配。

10. 发明授权

US4789846A Microwave semiconductor switch 失效
标题翻译：微波半导体开关
公开(公告)号：US4789846A
公开(公告)日：1988-12-06
申请号：US45627
申请日：1987-05-01
申请人： Makoto Matsunaga , Yoshitada Iyama , Fumio Takeda
发明人： Makoto Matsunaga , Yoshitada Iyama , Fumio Takeda
IPC分类号： H01P1/15 , H03K17/693
CPC分类号： H03K17/693 , H01P1/15
摘要： A microwave semiconductor switch wherein first and second field effect transistors and first, second and third input/output microstrip lines are integrally formed on a semiconductor substrate. The first field effect transistor is connected in series between the second input/output line and a junction point of the first, second and third input/output lines at a position adjacent to the junction point. The second field effect transistor is connected at a second position spaced approximately a quarter of the wavelength from the junction point between the second position and the ground. The drain electrodes and source electrodes of the first and second transistors are placed at the same potential. The transmission paths for microwaves are switched by varying a bias voltage applied to the gate electrodes of the field effect transistors.
摘要翻译：一种微波半导体开关，其中第一和第二场效应晶体管以及第一，第二和第三输入/输出微带线一体形成在半导体衬底上。第一场效应晶体管串联连接在第二输入/输出线与第一，第二和第三输入/输出线的连接点相邻的位置。第二场效应晶体管在距离第二位置和地之间的接合点间隔大约四分之一波长的第二位置连接。第一和第二晶体管的漏电极和源极被放置在相同的电位。通过改变施加到场效应晶体管的栅电极的偏置电压来切换微波的传输路径。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式