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    • 32. 发明申请
    • Traveling Wave Excitation Antenna And Planar Antenna
    • 行波激励天线和平面天线
    • US20130027259A1
    • 2013-01-31
    • US13559686
    • 2012-07-27
    • Takaaki FujitaTakeshi OkunagaEisuke Hayakawa
    • Takaaki FujitaTakeshi OkunagaEisuke Hayakawa
    • H01Q11/04
    • H01Q21/065H01Q9/0478H01Q13/206
    • An object is to suppress radiation of a cross polarized wave by a microstrip antenna to improve cross polarization discrimination of the traveling wave excitation antenna. A microstrip antenna wherein: a feed line 21 through which a traveling wave propagates, and a radiating element 22 that is excited by the traveling wave are formed on a dielectric substrate 1, and wherein: the radiating element 22 has a radiating part 22A for radiating a co-polarization wave, and an open stub 22B that has a stub length 22A substantially equal to λg/4 and that extends from the radiating part toward a cross polarization direction. Therefore, without changing an element width Lb of the radiating element 22, radiation of a cross polarized wave by the radiating element 22 can be suppressed to improve cross polarization discrimination.
    • 目的是通过微带天线来抑制交叉极化波的辐射,以改善行波激发天线的交叉极化鉴别。 一种微带天线,其特征在于,在电介质基板1上形成有行波传播的馈线21和被行波激励的辐射元件22,其中:辐射元件22具有用于辐射的辐射部22A 共极化波,以及开口短截线22B,其短截线长度22A基本上等于λg/ 4并且从辐射部朝向交叉极化方向延伸。 因此,在不改变辐射元件22的元件宽度Lb的情况下,可以抑制由辐射元件22产生的交叉极化波的辐射以提高交叉极化判别。
    • 33. 发明申请
    • DUAL-FREQUENCY ANTENNA
    • 双频天线
    • US20050156795A1
    • 2005-07-21
    • US10760369
    • 2004-01-21
    • Ming-Hau Yeh
    • Ming-Hau Yeh
    • H01Q1/24H01Q1/38H01Q3/00H01Q9/00H01Q11/04
    • H01Q9/00H01Q1/243H01Q11/04
    • The present invention discloses a dual-frequency antenna, wherein a coplanar wave guide wire is printed onto a dielectric substrate, so that an end of the coplanar wave guide wire can be used as a signal input end, and a ground metal surface is printed onto the same side of the dielectric substrate at a position corresponding to the periphery of the coplanar wave guide wire. The ground metal surface keeps a certain distance from the coplanar wave guide wire, and the other end of the coplanar wave guide wire is extended outside the ground metal surface. A radiating member is extended from a side along the direction of the longitudinal axis, and a meandered conductive wire is extended from the other side at the end of the longitudinal axis. The radiating member is parallel to the conductive wire, and a gap is kept in parallel to the edge of the ground metal surface, so that each radiating member can be used to receive signals of different frequencies.
    • 本发明公开了一种双频天线,其中共面波导被印刷到电介质基板上,使得共面波导线的端部可以用作信号输入端,并将接地金属表面印刷到 在与共面波导线的周边对应的位置处的电介质基板的同一侧。 接地金属表面与共面波导线保持一定距离,共面波导线的另一端延伸到地面金属表面外。 辐射构件沿着纵向轴线的一侧延伸,并且在纵向轴线的端部从另一侧延伸出蜿蜒的导电线。 散热构件平行于导电线,并且间隙保持与接地金属表面的边缘平行,使得每个辐射构件可用于接收不同频率的信号。
    • 34. 发明授权
    • Antenna
    • 天线
    • US6111545A
    • 2000-08-29
    • US252159
    • 1999-02-18
    • Timo Saari
    • Timo Saari
    • H01Q1/24H01Q1/36H01Q5/00H01Q5/357H01Q5/378H01Q9/42H01Q11/04H01Q11/14H01Q1/38
    • H01Q11/14H01Q1/242H01Q1/243H01Q1/36H01Q11/04H01Q5/357H01Q5/378H01Q9/42
    • The invention comprises an antenna structure particularly suited for mobile stations. The antenna comprises a radiating element (100) which is of a conductor form. The antenna conductor comprises a basic conductor and as an extension to this a conductor (115, 116) which at least partly is located relatively close to the basic conductor. As the conductors are close to each other that causes an electromagnetic coupling, which again causes a second resonance frequency for the antenna. The bandwidth of the antenna can be widened when the second resonance frequency is arranged close to the first one. The antenna can be made as a two-band antenna when the second resonance frequency is arranged relatively far from the first one. The bands can be made relatively wide, so that the antenna operates satisfactorily in different positions and in the neighbourhood of objects. It can be fastened to the back wall of a mobile station, whereby the distance to the user's head is made as large as possible.
    • 本发明包括特别适用于移动台的天线结构。 天线包括导体形式的辐射元件(100)。 天线导体包括基本导体和作为至少部分地位于相对靠近基本导体的导体(115,116)的延伸部。 由于导体彼此靠近,导致电磁耦合,这又导致天线的第二共振频率。 当第二共振频率靠近第一共振频率时,可以加宽天线的带宽。 当第二谐振频率被布置成比第一谐振频率相对较远时,天线可以被制成双波段天线。 可以使带宽相对较宽,使得天线在不同位置和物体附近令人满意地工作。 它可以被固定到移动台的后壁,从而使得到用户头部的距离尽可能大。
    • 35. 发明授权
    • Telecommunication system
    • 电信系统
    • US5309430A
    • 1994-05-03
    • US918450
    • 1992-07-22
    • Henri A. J. VerhilleMichel A. R. HenrionMichel P. De SomerBart J. G. Pauwels
    • Henri A. J. VerhilleMichel A. R. HenrionMichel P. De SomerBart J. G. Pauwels
    • H04L12/56H04Q3/42H04Q3/52H04Q11/04H01Q11/04
    • H04L12/5601H04L49/1553H04L49/203H04L49/256H04L49/309
    • A telecommunication system for transmitting cells through switching nodes (N1-3) interconnected by groups (LG12, LG23) of transmission links, each node including an asynchronous switching network (SN1-3) which comprises several switch elements. At least one of these switch elements possesses a routing group possibility whereby the cells are distributed over its outlets and so further over the different transmission links of the link group to which the switching network is connected. This distribution is performed in function of a self-routing tag which is derived from external routing data associated with the cell. At the input ports of either each or only the first switching network (SN1) of the system, the external routing data is translated in a self-routing tag which is for instance added to the header of the cell, while at the output ports of each or of only the last switching network (SN3) of the system respectively, the self-routing tag is removed from this header. Some switch elements possess a multicast possibility whereby the cells are transferred to several outlets thereof and thereby to several link groups to which the switching network is connected.
    • 一种用于通过由传输链路的组(LG12,LG23)互连的交换节点(N1-3)发送小区的电信系统,每个节点包括包括多个交换单元的异步交换网络(SN1-3)。 这些开关元件中的至少一个具有路由组的可能性,由此小区在其出口上分布,并且进一步分布在与交换网络连接的链路组的不同传输链路上。 该分配是根据与该小区相关联的外部路由数据导出的自路由标签的功能来执行的。 在系统的每个或仅第一交换网络(SN1)的输入端口处,外部路由数据被转换成自路由标签,该自路由标签例如被添加到小区的报头,而在 每个或只有系统的最后一个交换网络(SN3),自动路由标签从该报头中移除。 一些交换单元具有组播可能性,由此将小区传送到其多个出口,从而转接到交换网络连接到的几个链路组。
    • 38. 发明授权
    • Polarization agile meander line array
    • 极化敏捷曲折线阵列
    • US4293858A
    • 1981-10-06
    • US097000
    • 1979-11-23
    • George A. Hockham
    • George A. Hockham
    • H01Q11/04H01Q13/20H01Q15/22H01Q21/24H01Q15/24
    • H01Q21/245H01Q11/04H01Q13/206H01Q15/22
    • A polarization-agile radar array employing at least one linear array having a periodic first meander line and a second meander line which is a close-spaced, mirror image of the first such line, these lines being separately driven so that when they are fed with equal amplitude and phase, the polarization will be in a first plane and when driven in anti-phase, orthogonal polarization is achieved. The meander lines extend in the same plane which is parallel to a ground from which it is spaced. Intermediate polarization angles are achieved by intermediate phase and amplitude relationships of the drive, equal amplitude and phase quadrature exitation providing circular polarization. A series of generally parallel, conductive vanes is affixed to the ground plane to compensate for the reactance of longitudinal sections of the meander line longitudinal feeder (connecting) sections as the wave passes therethrough when its polarization is essentially parallel to those feeder lines. In opposite polarization situations, the upper surface of the corrugated ground plane itself is the operative reflection surface, the radiation coupling at and between polarization extremes thereby being substantially uniform.
    • 一种极化敏捷雷达阵列,其采用至少一个线性阵列,其具有周期性的第一曲折线和作为第一线的近距离镜像的第二曲折线,这些线被单独驱动,使得当它们被馈送 相位幅度和相位,极化将处于第一平面,当反相驱动时,实现正交极化。 曲折线在平行于与其分开的地面的同一平面中延伸。 中间极化角通过驱动,相位振幅和相位正交退出的中间相位和幅度关系来实现,提供圆极化。 一系列大致平行的导电叶片固定在接地平面上,以补偿当波的偏振基本上平行于那些馈线时波纹通过的曲折线纵向馈线(连接)部分的纵向部分的电抗。 在相反的极化情况下,波纹接地平面本身的上表面是可操作的反射表面,极化极化之间和之间的辐射耦合基本上是均匀的。
    • 40. 发明授权
    • Broad band transformer antenna and related feed system
    • 宽带变压器天线和相关进料系统
    • US3564555A
    • 1971-02-16
    • US3564555D
    • 1968-01-10
    • RAYMOND A ROSENBERRY
    • ROSENBERRY RAYMOND A
    • H01Q11/10H01Q11/04H01Q21/12
    • H01Q11/10
    • A BOARD BAND TRANSFORMER ANTENNA HAVING A SERIES OF OVERLAPPING TRIPLET ELEMENT CELLS IN A FISHBONE TYPE OF ARRANGEMENT OF SUCCESSIVELY SHORTER ELEMENT LENGTHS. EACH ELEMENT OF A TRIPLET IS SHORTER THAN AND SPACED FROM THE PRECEEDING ELEMENT BY SUCH CALCULATED INCREMENT AS WILL CAUSE THE STRADDLING ELEMENTS, AS WELL AS ALL OTHER ELEMENTS OF THE SERIES, TO BE PHASED THE SAME ELECTRICALLY IN RELATION TO THE RESONANT ELEMENT, AND CAUSE THE STRADDLING ELEMENTS TO HAVE COUNTER-BALANCING CURRENTS, VOLTAGES AND REACTIVE COMPONENTS WITH RESPECT TO THE CENTRAL RESONANT ELEMENT TO ELIMINATE SURGE IMPEDANCE AND CREATE A NULL REACTANCE SYSTEM WITH RESPECT TO A FREE SPACE WAVE. THE IMPEDANCE AT THE TEMINNATING FEED POINT OF ANY RESONANT ELEMENT IN AN ACTIVE TRIPLET IS UNIFORM AT EH APPLIED RESONANT FREQUENCY, EACH ELEMENT LENGTH AND IMPEDANCE IS COORDINATED TO ITS TRANSFORMER LINE LENGTH AND IMPEDANCE TO PRODUCE THE DESIRED MATCHED IMPEDANCE AT THE TRANSMISSION LINE FEED POINT, AND EXCELLENT BROAD BANDING IS ACHIEVED WITH RELATIVELY FEW ELEMENTS. AT ANY SELECTED FREQUENCY WITHIN THE ANTENNA RANGE, THE ELEMENTS OF THE NON-ACTIVE TRIPLETS PRESENT SUBSTANTIALLY INFINITE IMPEDANCE TO THEIR TRANSFORMER FEED POINTS. THE TRIPLET IS THE BASIC CELL UNIT, BUT ANY ODD NUMBER OF ELEMENT OR ELEMENT UNITS CAN BE PROPERLY SIZED AND SPACED TO CONSTITUTE SUCH A STRADDLE CELL.