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    • 1. 发明授权
    • Multi-band or wide-band antenna including driven and parasitic top-loading elements
    • 多频带或宽带天线,包括驱动和寄生顶部加载元件
    • US07733279B2
    • 2010-06-08
    • US11918021
    • 2006-04-06
    • Behzad Tavassoli Hozouri
    • Behzad Tavassoli Hozouri
    • H01Q1/24
    • H01Q9/36H01Q9/0421H01Q9/0457
    • A monopole-type antenna (10) for multi- or wide-band use to transmit or receive radio frequency electromagnetic energy. A feed point (12) provides energy into the antenna or receives energy from the antenna. A driven radiating section (16) includes a first top-loading element (22) and a feed conductor (20) that electrically connects the feed point linearly to the first top-loading element, yet with the driven radiating section not electrically connected to a grounding surface (14). A parasitic radiating section (18) includes a second top-loading element (26) and a bridge conductor (24) that electrically connects the second top-loading element linearly to the grounding surface When energy is then provided at the feed point and conducted to the driven radiating section, it produces a first resonance mode, coupling at least some of the energy into and exciting the parasitic radiating section to produce a second resonance mode.
    • 用于多波段或多波段使用以发射或接收射频电磁能的单极型天线(10)。 馈电点(12)向天线提供能量或从天线接收能量。 驱动辐射部分(16)包括第一顶部装载元件(22)和馈电导体(20),所述第一顶部加载元件(22)和馈电导体将馈电点线性地连接到第一顶部装载元件,但是驱动辐射部分未电连接到 接地面(14)。 寄生辐射部分(18)包括第二顶部装载元件(26)和桥接导体(24),其将第二顶部装载元件线性地连接到接地表面。然后当在馈电点处提供能量并被传导到 所述驱动辐射部分产生第一共振模式,将至少一些能量耦合到激励寄生辐射部分并产生第二谐振模式。
    • 2. 发明申请
    • RFID Antenna
    • RFID天线
    • US20090033580A1
    • 2009-02-05
    • US11918020
    • 2007-01-19
    • Behzad Tavassoli Hozouri
    • Behzad Tavassoli Hozouri
    • H01Q9/26H01Q1/36
    • G06K19/07749H01Q1/2225H01Q1/248H01Q9/26H01Q9/285
    • An antenna particularly suitable for use in radio frequency identification (RFID) transponders. First and second half portions each include nominally straight conductive sections primarily defining a radiating characteristic and nominally spiral conductive sections creating a positive reactive characteristic of the antenna. The straight conductive sections have feed points for connecting the antenna into the RFID transponder, and further connect with the respective spiral conductive sections. The first and said second half portions characterize the antenna as being a dipole type, and adding an optional loop section connecting the straight conductive sections can further characterize it as being of a folded dipole type.
    • 特别适用于射频识别(RFID)应答器的天线。 第一和第二部分各自包括主要限定辐射特性的标称直的导电部分,并且标称螺旋导电部分产生天线的正电势特性。 直线导电部分具有用于将天线连接到RFID应答器中的馈电点,并且进一步与相应的螺旋导电部分连接。 第一和第二半部分将天线表征为偶极型,并且添加连接直导电部分的可选环部分可进一步将其表征为折叠偶极子型。
    • 3. 发明授权
    • Mode transducer structure
    • 模式换能器结构
    • US07446623B2
    • 2008-11-04
    • US11160904
    • 2005-07-14
    • Behzad Tavassoli Hozouri
    • Behzad Tavassoli Hozouri
    • H01P1/16H01P1/06
    • H01P1/163H01P1/067
    • A mode transducer for converting an electromagnetic wave between TE1,0 and TM0,1 modes. A rectangular waveguide guides the wave while in TE1,0 mode and a circular waveguide guides the wave while in TM0,1 mode. The rectangular waveguide and the circular waveguide are joined by a chamber to form a right angle structure. The chamber particularly includes offset walls distended away from proximal portions of the rectangular waveguide to convert the electromagnetic wave between modes. Two of the mode transducers rotatably coupled with a suitable rotation mechanism may be used as a rotary waveguide joint.
    • 一种模式换能器,用于在TE&lt; 1,0&gt;和&lt; 0,1&lt; 0,1&gt;模式之间转换电磁波。 矩形波导在TE <1,0&gt;模式中引导波,并且圆形波导在TM 0,1>模式下引导波。 矩形波导和圆形波导通过腔室连接以形成直角结构。 该腔室特别地包括从矩形波导的近端部分扩展的偏移壁,以在模式之间转换电磁波。 与适当的旋转机构可旋转地联接的两个模式换能器可以用作旋转波导接头。
    • 4. 发明申请
    • RADIO AND ANTENNA SYSTEM AND DUAL-MODE MICROWAVE COUPLER
    • 无线电和天线系统和双模微波耦合器
    • US20110105019A1
    • 2011-05-05
    • US12608569
    • 2009-10-29
    • Behzad Tavassoli HozouriVasanth MunikotiMahadevan Sridharan
    • Behzad Tavassoli HozouriVasanth MunikotiMahadevan Sridharan
    • H04B7/24H01P5/18
    • H01P5/181H01P5/08
    • A radio and antenna system has a first microwave radio, second microwave radio, a first antenna and a dual mode coupler that has a first dual mode transmission line extending between a first port and a third port and a second dual mode transmission line extending between a second port and a microwave absorbing termination. The first microwave radio is coupled to the first port. The second microwave radio is coupled to the second port. The antenna is coupled to the third port. The first dual mode transmission line is coupled to the second dual mode transmission line so that microwave signals in either of the first dual mode transmission line and the second dual mode transmission line propagates microwave signals in the other of the first dual mode transmission line and the second dual mode transmission line.
    • 无线电和天线系统具有第一微波无线电,第二微波无线电,第一天线和双模耦合器,其具有在第一端口和第三端口之间延伸的第一双模传输线和在第一和第三端口之间延伸的第二双模传输线 第二端口和微波吸收终端。 第一微波无线电装置耦合到第一端口。 第二微波无线电装置耦合到第二端口。 天线耦合到第三端口。 第一双模传输线耦合到第二双模传输线,使得第一双模传输线和第二双模传输线中的任一个中的微波信号传播第一双模传输线中的另一个中的微波信号,并且 第二双模传输线。
    • 5. 发明授权
    • Slot antenna
    • 插槽天线
    • US07394435B1
    • 2008-07-01
    • US11608371
    • 2006-12-08
    • Behzad Tavassoli Hozouri
    • Behzad Tavassoli Hozouri
    • H01Q13/10
    • H01Q1/24H01Q13/10H01Q13/12
    • An antenna (10) having outer and inner sections (12, 14) of electrically conductive material and coaxial with a longitudinal axis (19). The outer section includes an outer side wall (22) extending from the bottom to join an outer top wall at the top of the antenna. The inner section includes an inner side wall extending upward from the bottom to join an inner top wall. The outer and inner sections define an interior region (32) filled with dielectric material. The outer section has at least one slotted opening (34) with opposed ends, wherein each such slotted opening extends from one end in the outer side wall, across the outer top wall, and to the opposed end in the outer side wall. The inner section including at least one feed (36) to convey electromagnetic energy into or out of said interior region of the antenna.
    • 具有导电材料的外部和内部部分(12,14)并且与纵向轴线(19)同轴的天线(10)。 外部部分包括从底部延伸以连接在天线顶部的外顶壁的外侧壁(22)。 内部部分包括从底部向上延伸以连接内部顶壁的内侧壁。 外部和内部部分限定了填充有电介质材料的内部区域(32)。 外部部分具有至少一个具有相对端的开槽开口(34),其中每个这样的开槽开口从外侧壁中的一端穿过外顶壁延伸,并延伸到外侧壁中的相对端。 所述内部部分包括用于将电磁能量输入到所述天线的所述内部区域中的至少一个馈送(36)。
    • 6. 发明申请
    • RFID ANTENNA
    • RFID天线
    • US20060208900A1
    • 2006-09-21
    • US11307016
    • 2006-01-19
    • Behzad Tavassoli Hozouri
    • Behzad Tavassoli Hozouri
    • G08B13/14H01Q1/10
    • G06K19/07749H01Q1/22H01Q1/2225H01Q1/248H01Q9/26H01Q9/285
    • An antenna particularly suitable for use in radio frequency identification (RFID) transponders. First and second half portions each include nominally straight conductive sections primarily defining a radiating characteristic and nominally spiral conductive sections creating a positive reactive characteristic of the antenna. The straight conductive sections have feed points for connecting the antenna into the RFID transponder, and further connect with the respective spiral conductive sections. The first and said second half portions characterize the antenna as being a dipole type, and adding an optional loop section connecting the straight conductive sections can further characterize it as being of a folded dipole type.
    • 特别适用于射频识别(RFID)应答器的天线。 第一和第二部分各自包括主要限定辐射特性的标称直的导电部分,并且标称螺旋导电部分产生天线的正电势特性。 直线导电部分具有用于将天线连接到RFID应答器中的馈电点,并且进一步与相应的螺旋导电部分连接。 第一和第二半部分将天线表征为偶极型,并且添加连接直导电部分的可选环部分可进一步将其表征为折叠偶极子型。
    • 7. 发明授权
    • Slot antenna
    • 插槽天线
    • US07551145B2
    • 2009-06-23
    • US11759801
    • 2007-06-07
    • Behzad Tavassoli Hozouri
    • Behzad Tavassoli Hozouri
    • H01Q13/10
    • H01Q1/24H01Q13/10H01Q13/12
    • An antenna (10) having a top (14), a bottom (16), and a longitudinal axis (20). An outer shell (12) of electrically conductive material is provided which is coaxial with the longitudinal axis, and which includes an outer top wall (22) joining with an outer side wall (24) that extends toward the bottom of the antenna. The shell defines an interior region (18) that is filled with a dielectric material, and the shell has at least one slot (30) with opposed slot ends. Each slot extends from one opposed slot end in the side wall, and at least partially across the top wall to an opposed other slot end. A coaxial feed (32) extends from the bottom of the antenna to the top of the antenna, to convey electromagnetic energy to or from the top wall of the antenna.
    • 具有顶部(14),底部(16)和纵向轴线(20)的天线(10)。 提供导电材料的外壳(12),其与纵向轴线同轴,并且包括与朝向天线的底部延伸的外侧壁(24)连接的外顶壁(22)。 壳体限定了填充有介电材料的内部区域(18),并且壳体具有至少一个具有相对的狭槽端部的狭槽(30)。 每个槽从侧壁中的一个相对的槽端延伸,并且至少部分地穿过顶壁延伸到相对的另一个槽端。 同轴馈电(32)从天线的底部延伸到天线的顶部,以将电磁能传送到天线或从天线的顶壁。
    • 8. 发明申请
    • BALANCED ANTENNA
    • 平衡天线
    • US20090128440A1
    • 2009-05-21
    • US12273369
    • 2008-11-18
    • Behzad Tavassoli Hozouri
    • Behzad Tavassoli Hozouri
    • H01Q9/16H01Q1/50
    • H01Q1/243H01P5/10H01Q9/27H01Q9/285
    • An antenna. A base body made of a dielectric material is provide, wherein the base body has a bottom surface and an opposed top surface. A conductive layer of a conductive material is provided on the bottom surface of the base body. Two dipole conductors are provided that form a dipole on the top surface of the base body, wherein the dipole conductors are at least partially spiral shaped and have opposite directions. A balun is provided that has a feed conductor section and two ground conductor sections that are all substantially parallel. The balun receives an unbalanced signal from a feed line, transforms this signal, and provides it to the dipole conductors via the feed and ground conductor sections.
    • 天线。 提供由介电材料制成的基体,其中基体具有底表面和相对的顶表面。 导电材料的导电层设置在基体的底表面上。 提供了两个偶极导体,其在基体的顶表面上形成偶极子,其中偶极导体至少部分成螺旋形并且具有相反的方向。 提供了一种平衡 - 不平衡转换器,其具有所有基本上平行的馈电导体部分和两个接地导体部分。 平衡不平衡转换器从馈线接收不平衡信号,转换该信号,并通过馈电和接地导体部分将其提供给偶极导体。
    • 9. 发明申请
    • BALANCE-FED HELICAL ANTENNA
    • 平衡天线天线
    • US20080316138A1
    • 2008-12-25
    • US11925472
    • 2007-10-26
    • Behzad Tavassoli Hozouri
    • Behzad Tavassoli Hozouri
    • H01Q1/36H01Q1/38H01Q1/50
    • H01Q1/36H01Q11/08
    • An antenna having a cylindrical shaped dielectric core region that defines top, bottom, and side surfaces. Two laterally opposed conductive linking tracks are provided at the top or bottom surface and connect to respective groups of conductive antenna elements which extend across the top (or bottom surface) and at least partially down (or up) the side surface. A balun having two input terminals and two output terminals is provided at the top (or bottom) surface such that a feed line having two conductors extending from outside of the antenna connect respectively to the input terminals and the output terminals each connect respectively to a linking track.
    • 天线具有限定顶部,底部和侧面的圆柱形介质芯区域。 两个横向相对的导电连接轨道设置在顶表面或底表面处,并且连接到延伸穿过顶部(或底表面)并且至少部分地向下(或向上)侧表面的相应导电天线元件组。 具有两个输入端子和两个输出端子的平衡 - 不平衡转换器设置在顶部(或底部)表面处,使得具有从天线的外部延伸的两个导体的馈线分别连接到输入端子,并且输出端子分别连接到连接 跟踪。
    • 10. 发明申请
    • SLOT ANTENNA
    • 天线天线
    • US20080136723A1
    • 2008-06-12
    • US11759801
    • 2007-06-07
    • Behzad Tavassoli Hozouri
    • Behzad Tavassoli Hozouri
    • H01Q13/10H01Q13/12
    • H01Q1/24H01Q13/10H01Q13/12
    • An antenna (10) having a top (14), a bottom (16), and a longitudinal axis (20). An outer shell (12) of electrically conductive material is provided which is coaxial with the longitudinal axis, and which includes an outer top wall (22) joining with an outer side wall (24) that extends toward the bottom of the antenna. The shell defines an interior region (18) that is filled with a dielectric material, and the shell has at least one slot (30) with opposed slot ends. Each slot extends from one opposed slot end in the side wall, and at least partially across the top wall to an opposed other slot end. A coaxial feed (32) extends from the bottom of the antenna to the top of the antenna, to convey electromagnetic energy to or from the top wall of the antenna.
    • 具有顶部(14),底部(16)和纵向轴线(20)的天线(10)。 提供导电材料的外壳(12),其与纵向轴线同轴,并且包括与朝向天线的底部延伸的外侧壁(24)连接的外顶壁(22)。 壳体限定了填充有介电材料的内部区域(18),并且壳体具有至少一个具有相对的狭槽端部的狭槽(30)。 每个槽从侧壁中的一个相对的槽端延伸,并且至少部分地穿过顶壁延伸到相对的另一个槽端。 同轴馈电(32)从天线的底部延伸到天线的顶部,以将电磁能传送到天线或从天线的顶壁。