Small broadband monopole antenna having perpendicular ground plane with electromagnetically coupled feed
    1.
    发明申请
    Small broadband monopole antenna having perpendicular ground plane with electromagnetically coupled feed 有权
    具有电磁耦合馈电的垂直接地平面的小宽带单极天线

    公开(公告)号:US20060256015A1

    公开(公告)日:2006-11-16

    申请号:US11376336

    申请日:2006-03-16

    IPC分类号: H01Q1/38

    CPC分类号: H01Q9/0407 H01Q9/30

    摘要: A small broadband monopole antenna having a perpendicular ground plane with an electromagnetically coupled feed is provided. The small broadband monopole antenna may be realized as a small antenna having a size of 0.085λ0×0.085λ0×0.085λ0 by positioning a folded strip line under a shorted square disc. A resonance of the shorted square disc may be coupled to a resonance of the square folded strip line so as to form a wide bandwidth of about 36.6% of a central frequency of 2.313 GHz based on a VSWR≦2. Also, rectangular slits may be inserted into the perpendicular ground plane to improve a distortion of a radiation pattern that forms on the perpendicular ground plane so as to reduce a backward radiation by 3 dBi or more. The small broadband monopole antenna exhibits a forward radiation pattern similar to that of a general monopole antenna and has a gain of about 2.6 dBi within a bandwidth.

    摘要翻译: 提供具有电磁耦合馈电的具有垂直接地平面的小宽带单极天线。 小型宽带单极天线可以通过定位来实现为具有大小为0.085λλ0.085λλ0.085λλ0<0的小天线 在短方形盘下的折叠带状线。 短路方形盘的谐振可以耦合到方形折叠带状线的谐振,从而基于VSWR <= 2形成约2.313GHz的中心频率的约36.6%的宽带宽。 此外,矩形狭缝可以插入到垂直接地平面中,以改善在垂直接地平面上形成的辐射图案的变形,以便将后向辐射减小3dBii或更大。 小宽带单极天线具有类似于一般单极天线的正向辐射图,并且在带宽内具有约2.6dBi的增益。

    Small broadband monopole antenna having perpendicular ground plane with electromagnetically coupled feed
    2.
    发明授权
    Small broadband monopole antenna having perpendicular ground plane with electromagnetically coupled feed 有权
    具有电磁耦合馈电的垂直接地平面的小宽带单极天线

    公开(公告)号:US07268730B2

    公开(公告)日:2007-09-11

    申请号:US11376336

    申请日:2006-03-16

    IPC分类号: H01Q1/38

    CPC分类号: H01Q9/0407 H01Q9/30

    摘要: A small broadband monopole antenna having a perpendicular ground plane with an electromagnetically coupled feed is provided. The small broadband monopole antenna may be realized as a small antenna having a size of 0.085λ0×0.085λ0×0.085λ0 by positioning a folded strip line under a shorted square disc. A resonance of the shorted square disc may be coupled to a resonance of the square folded strip line so as to form a wide bandwidth of about 36.6% of a central frequency of 2.313 GHz based on a VSWR≦2. Also, rectangular slits may be inserted into the perpendicular ground plane to improve a distortion of a radiation pattern that forms on the perpendicular ground plane so as to reduce a backward radiation by 3 dBi or more. The small broadband monopole antenna exhibits a forward radiation pattern similar to that of a general monopole antenna and has a gain of about 2.6 dBi within a bandwidth.

    摘要翻译: 提供具有电磁耦合馈电的具有垂直接地平面的小宽带单极天线。 小型宽带单极天线可以通过定位来实现为具有大小为0.085λλ0.085λλ0.085λλ0<0的小天线 在短方形盘下的折叠带状线。 短路方形盘的谐振可以耦合到方形折叠带状线的谐振,从而基于VSWR <= 2形成约2.313GHz的中心频率的约36.6%的宽带宽。 此外,矩形狭缝可以插入到垂直接地平面中,以改善在垂直接地平面上形成的辐射图案的变形,以便将后向辐射减小3dBii或更大。 小宽带单极天线具有类似于一般单极天线的正向辐射图,并且在带宽内具有约2.6dBi的增益。

    Electromagnetically coupled small broadband monopole antenna
    3.
    发明授权
    Electromagnetically coupled small broadband monopole antenna 失效
    电磁耦合小宽带单极天线

    公开(公告)号:US07215288B2

    公开(公告)日:2007-05-08

    申请号:US10936200

    申请日:2004-09-08

    IPC分类号: H01Q1/24

    摘要: A small broadband monopole antenna including a shorted patch and a probe with a strip line that are electromagnetically coupled with each other. The probe with a strip line has a length of about λ/4, where λ is a wavelength. The strip line may be one of a spiral type, a folded type and a helix type. A resonance frequency of the antenna can be adjusted by varying the inductance and the capacitance of the resonance circuits. In addition, a double-band antenna or a single-band antenna having a broad bandwidth can be designed in accordance with application purpose of the antenna.

    摘要翻译: 小型宽带单极天线,包括短路贴片和具有彼此电磁耦合的带状线的探针。 具有带状线的探针具有约λ/ 4的长度,其中λ是波长。 带状线可以是螺旋型,折叠型和螺旋型之一。 可以通过改变谐振电路的电感和电容来调节天线的谐振频率。 此外,可以根据天线的应用目的来设计具有宽带宽的双频天线或单频带天线。

    MICRO STRIP ANTENNA
    5.
    发明申请
    MICRO STRIP ANTENNA 失效
    微带天线

    公开(公告)号:US20110193747A1

    公开(公告)日:2011-08-11

    申请号:US12714393

    申请日:2010-02-26

    IPC分类号: H01Q1/38

    CPC分类号: H01Q9/0414

    摘要: The invention provides a micro strip antenna used for both a near-field region and a remote-field region. A micro strip antenna comprises: a first dielectric substrate; a main patch, having a triangle shape under the first dielectric substrate, configured to feed a radiation current; a second dielectric substrate over the first dielectric substrate; and a sub patch, formed under the second dielectric substrate, configured to desert a current from the main patch to provide a vertical magnetic field.

    摘要翻译: 本发明提供了一种用于近场区域和远场区域的微带天线。 微带天线包括:第一电介质基片; 在所述第一电介质基板下具有三角形形状的主贴片,被配置为馈送辐射电流; 第一电介质基板上的第二电介质基板; 以及形成在所述第二电介质基板下方的子贴片,其被配置为使来自所述主贴片的电流沙漠化以提供垂直磁场。

    Compact antenna for circular polarization
    7.
    发明授权
    Compact antenna for circular polarization 失效
    用于圆极化的紧凑型天线

    公开(公告)号:US5786793A

    公开(公告)日:1998-07-28

    申请号:US908723

    申请日:1997-08-08

    摘要: A compact antenna for circular polarization comprises a substrate of a dielectric material which is formed on its bottom surface with a ground plane and on its top surface with four planar rectangular patches of an electrically conductive material. The four patches are mounted in a coplanar relation on the top surface of the substrate, and arranged along four sides of a square pattern with the length of each patch angled at 90.degree. with respect to the length of the two adjacent patches. Each of the four patches is short-circuited to the ground plane at a shorting point located at a corner of the square pattern. A 90.degree. hybrid circuit is connected to directly feed only the two adjacent patches with a phase difference of 90.degree. to thereby define these two patches as active antenna elements which are fed with 0.degree. and 90.degree. signals, respectively. The other two adjacent patches are not fed from the hybrid circuit to define parasitic antenna elements each coupled with the adjacent active antenna element to provide a signal which is 90.degree. out of phase with a signal on the adjacent active antenna element. Thus, the active and parasitic antenna elements arranged in one direction around the substrate are fed at 0.degree., 90.degree., 180.degree., and 270.degree. phases for circular polarization only with the use of a single hybrid circuit.

    摘要翻译: 用于圆偏振的小型天线包括介电材料的基底,其在其底表面上形成有接地平面,并且在其顶表面上形成有导电材料的四个平面矩形斑块。 四个贴片以共面关系安装在基板的顶表面上,并且沿着四边形排列,每个贴片的长度相对于两个相邻贴片的长度成90°角。 四个贴片中的每一个在位于正方形图案的拐角处的短路点处与接地平面短路。 90°混合电路连接,直接仅以相位差为90°的两个相邻的贴片进行馈送,从而将这两个贴片分别定义为0°和90°信号的有源天线元件。 另外两个相邻的贴片不从混合电路馈送以限定每个与相邻有源天线元件耦合的寄生天线元件,以提供与相邻有源天线元件上的信号相差90°的信号。 因此,仅在使用单个混合电路的情况下,在0°,90°,180°和270°相位处沿一个方向布置在基板周围的有源和无功天线元件用于圆极化。

    Micro strip antenna
    8.
    发明授权
    Micro strip antenna 失效
    微带天线

    公开(公告)号:US08395550B2

    公开(公告)日:2013-03-12

    申请号:US12714393

    申请日:2010-02-26

    IPC分类号: H01Q1/38 H01Q9/38 H01Q19/00

    CPC分类号: H01Q9/0414

    摘要: The invention provides a micro strip antenna used for both a near-field region and a remote-field region. A micro strip antenna comprises: a first dielectric substrate; a main patch, having a triangle shape under the first dielectric substrate, configured to feed a radiation current; a second dielectric substrate over the first dielectric substrate; and a sub patch, formed under the second dielectric substrate, configured to desert a current from the main patch to provide a vertical magnetic field.

    摘要翻译: 本发明提供了一种用于近场区域和远场区域的微带天线。 微带天线包括:第一电介质基片; 在所述第一电介质基板下具有三角形形状的主贴片,被配置为馈送辐射电流; 第一电介质基板上的第二电介质基板; 以及形成在所述第二电介质基板下方的子贴片,其被配置为使来自所述主贴片的电流沙漠化以提供垂直磁场。

    MULTIPLE MEANDER STRIP MONOPOLE ANTENNA WITH BROADBAND CHARACTERISTIC
    9.
    发明申请
    MULTIPLE MEANDER STRIP MONOPOLE ANTENNA WITH BROADBAND CHARACTERISTIC 失效
    具有宽带特征的多个MEERER STRIP MONOPOLE天线

    公开(公告)号:US20050248499A1

    公开(公告)日:2005-11-10

    申请号:US10970732

    申请日:2004-10-22

    申请人: Ikmo Park Yun Ho Lee

    发明人: Ikmo Park Yun Ho Lee

    CPC分类号: H01Q1/36 H01Q9/42 H01Q21/205

    摘要: Disclosed is a multiple meander strip monopole antenna, which can have a broad bandwidth and easily miniaturize the antenna by using a meander structure. A grounding conductor plate is coupled to the under face of a dielectric base plate. A radial cross-strip is disposed symmetrically at the center of the upper surface of the dielectric base plate. Each radiating member of a multiple radiator is connected to the end portion of each corresponding branch of the radial cross-strip and stands substantially perpendicular to the base plate. Each radiating member is composed of a vertical strip section having a tapered structure, in which its width is progressively widened upwardly for an impedance matching and at least one meander strip section connected integrally to the upper end of the vertical strip section. When a feeding is carried out at the center of the radial cross-strip, a signal radiated from the multiple radiator is cancelled out in the axial direction of θ=0° and a radiation gain is increased as θ increases, thereby providing a conical beam radiation pattern. A broad bandwidth from 2.9 GHz to 10.85 GHz can be achieved and an excellent monopole radiation pattern having the same gain in all directions can also be achieved.

    摘要翻译: 公开了一种多重曲折带单极天线,其可以具有宽带宽并且通过使用曲折结构容易地使天线小型化。 接地导体板耦合到电介质基板的下表面。 径向交叉条对称地设置在电介质基板的上表面的中心处。 多个散热器的每个辐射构件连接到径向横向条的每个相应分支的端部并且基本垂直于基板。 每个辐射构件由具有锥形结构的垂直带状部分组成,其宽度逐渐向上加宽以进行阻抗匹配,以及至少一个与垂直条带部分的上端整体连接的弯曲带部分。 当在径向横条的中心进行进给时,从θ= 0°的轴向消除从多个散热器辐射的信号,并且当θ增加时辐射增益增加,从而提供锥形束 辐射图。 可以实现从2.9GHz到10.85GHz的宽带宽,并且还可以实现在所有方向上具有相同增益的优异的单极辐射图。

    Broadband U-shaped RFID tag antenna with near-isotropic characteristics
    10.
    发明申请
    Broadband U-shaped RFID tag antenna with near-isotropic characteristics 审中-公开
    宽带U型RFID标签天线具有近似各向同性的特点

    公开(公告)号:US20100156737A1

    公开(公告)日:2010-06-24

    申请号:US12588253

    申请日:2009-10-08

    IPC分类号: H01Q9/28

    CPC分类号: H01Q9/28 H01Q1/38

    摘要: A radio frequency identification (RFID) tag antenna in a U shape, having constant near-isotropic characteristics in a broadband. The RFID tag antenna includes a dipole antenna in a U shape, including a plurality of first conducting wires having a first width and separated from and parallel to each other with a first gap and a second conducting wire having a second width and connecting the plurality of first conducting wires; and a feed unit connected to the second conducting wire and located between the plurality of first conducting wires. The RFID tag antenna further includes the dipole antenna in a U shape and the feed unit disposed in the dipole antenna in a U shape, thereby having the constant near-isotropic characteristics in the broadband.

    摘要翻译: U形的射频识别(RFID)标签天线,在宽带中具有恒定的近似各向同性特征。 RFID标签天线包括U形偶极天线,包括具有第一宽度并且彼此分离并且彼此平行并具有第一间隙的多个第一导线和具有第二宽度的第二导线, 第一导线; 以及馈送单元,其连接到所述第二导线并且位于所述多个第一导线之间。 RFID标签天线还包括U形偶极天线和U形的偶极天线中的馈电单元,从而在宽带中具有恒定的近似各向同性特性。