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    Conformal frequency-agile tunable patch antenna
    11.
    发明授权
    Conformal frequency-agile tunable patch antenna 有权
    保形频敏捷可调贴片天线

    公开(公告)号：US06864843B2

    公开(公告)日：2005-03-08

    申请号：US10641835

    申请日：2003-08-14

    Applicant: Cornelis Frederik du Toit ,  Ernest P. Ekelman

    Inventor： Cornelis Frederik du Toit ,  Ernest P. Ekelman

    IPC: H01Q9/04 ,  H01Q1/38

    CPC classification number: H01Q9/0442

    Abstract: A tunable patch antenna is described herein that includes a ground plane on which there is located a substrate and on which there is located a patch. The patch is split into two parts (e.g., rectangular parts) which are connected to one another by one or more voltage-tunable series capacitors. Each part has a radiating edge which is connected to one or more voltage-tunable edge capacitors. Also described herein, is a method for electronically tuning the tunable patch antenna to any frequency within a band of operation which is in a range of about 30% of the center frequency of operation.

    Abstract translation: 本文描述了一种可调谐贴片天线，其包括接地平面，在该平面上定位有衬底，并且其上设有贴片。 该贴片被分成两部分（例如，矩形部分），它们通过一个或多个电压可调谐串联电容彼此连接。 每个部件具有连接到一个或多个电压可调边缘电容器的辐射边缘。 这里还描述了一种用于将可调谐贴片天线电子调谐到在中心频率操作的约30％的范围内的操作频带内的任何频率的方法。

    Tunable microwave devices with auto-adjusting matching circuit
    12.
    发明授权
    Tunable microwave devices with auto-adjusting matching circuit 有权
    可调谐微波器件具有自动调整匹配电路

    公开(公告)号：US06759918B2

    公开(公告)日：2004-07-06

    申请号：US10456683

    申请日：2003-06-06

    Applicant: Cornelis Frederik du Toit ,  Deirdre A. Ryan

    Inventor： Cornelis Frederik du Toit ,  Deirdre A. Ryan

    IPC: H03H1130

    CPC classification number: H01P5/028 ,  H01P5/04 ,  H01Q1/242 ,  H03F1/56 ,  H03F3/60 ,  H03H7/40 ,  H04B1/0458

    Abstract: An impedance matching circuit includes a conductor line having an input port and an output port, a ground conductor, a tunable dielectric material positioned between a first section of the conductor line and the ground conductor, a non-tunable dielectric material positioned between a second section of the conductor line and the ground conductor, and means for applying a DC voltage between the conductor line and the ground conductor. The impedance matching circuit may alternatively include a first planar ground conductor, a second planar ground conductor, a strip conductor having an input port and an output port, and positioned between the first and second planar ground conductors to define first and second gaps, the first gap being positioned between the strip conductor and the first planar ground conductor and the second gap being positioned between the strip conductor and the second planar ground conductor. A non-tunable dielectric material supports the first and second planar ground conductors and the strip conductor in the same plane. A connection is provided for applying a DC voltage between the strip conductor and the first and second planar ground conductors. A plurality of tunable dielectric layer sections are positioned between the strip conductor and the first and second planar ground conductors so as to bridge the gaps between the said first and second planar ground conductors and the strip conductor at a plurality of locations, leaving non-bridged sections in between, defining a plurality of alternating bridged and non-bridged co-planar waveguide sections.

    Abstract translation: 阻抗匹配电路包括具有输入端口和输出端口的导线，接地导体，位于导体线的第一部分与接地导体之间的可调电介质材料，位于第二部分之间的不可调电介质材料 的导体线和接地导体，以及用于在导体线和接地导体之间施加直流电压的装置。 阻抗匹配电路可以可选地包括第一平面接地导体，第二平面接地导体，具有输入端口和输出端口的带状导体，并且定位在第一和第二平面接地导体之间以限定第一和第二间隙，第一 间隙位于带状导体和第一平面接地导体之间，第二间隙位于带状导体和第二平面接地导体之间。 不可调电介质材料在同一平面内支撑第一和第二平面接地导体和带状导体。 提供了一种用于在带状导体与第一和第二平面接地导体之间施加直流电压的连接。 多个可调电介质层部分位于带状导体和第一和第二平面接地导体之间，以便在多个位置处桥接所述第一和第二平面接地导体与带状导体之间的间隙，留下非桥接 限定多个交替的桥接和非桥接的共面波导部分。

    SOLDERLESS CIRCULARLY POLARIZED MICROWAVE ANTENNA ELEMENT
    13.
    发明申请
    SOLDERLESS CIRCULARLY POLARIZED MICROWAVE ANTENNA ELEMENT 审中-公开
    无铅圆极化微波天线元件

    公开(公告)号：US20130050048A1

    公开(公告)日：2013-02-28

    申请号：US13222575

    申请日：2011-08-31

    Applicant: David Green ,  Cornelis Frederik Du Toit

    Inventor： David Green ,  Cornelis Frederik Du Toit

    IPC: H01Q1/50 ,  H01Q9/04

    CPC classification number: H01Q23/00 ,  H01Q9/0478 ,  H01Q21/30

    Abstract: Disclosed herein is an antenna feed design for transmitting or receiving a circularly polarized microwave signal, and a communication device using that antenna feed design. Resonating disks are bowl-shaped to balance E-plane and H-plane magnetic field patterns, decreasing cross-polarization, and providing mechanical rigidity. A non-planar circuit replaces planar microstrip transmission lines for transmitting the signal, with 90° phase shifts, from an input point to excitation points. This non-planar circuit overcomes some of the layout problems encountered in planar circuits. It maintains impedance matching from the input point to the excitation points by progressively tapering down the characteristic transmission line impedance of each successive section. The non-planar circuit has sufficient mechanical strength and rigidity to allow it to be supported at only two anchor points. Similarly, the non-planar disks are also of sufficient strength to require only a single anchor point each. Thus, the antenna parts do not require any additional dielectric substrate support, and all parts are DC grounded. The use of fingers surrounding the ground plane and extending towards the resonating disks results in improved off-boresight polarization. All components of the antenna feed are built and combined without the use of solder or dielectric substrate support, creating a stable, corrosion-resistant, low-cross polarization antenna.

    Abstract translation: 本文公开了一种用于发送或接收圆偏振微波信号的天线馈送设计，以及使用该天线馈送设计的通信设备。 谐振盘是碗状的，以平衡E平面和H平面磁场图案，减少交叉极化，并提供机械刚度。 非平面电路代替用于从输入点到激励点传输具有90°相移的信号的平面微带传输线。 该非平面电路克服了平面电路中遇到的一些布局问题。 它通过逐渐减小每个连续部分的特性传输线阻抗来保持从输入点到激励点的阻抗匹配。 非平面电路具有足够的机械强度和刚度，以允许其仅在两个锚定点处被支撑。 类似地，非平面盘也具有足够的强度，每个仅需要一个锚定点。 因此，天线部件不需要任何额外的电介质基板支撑，并且所有部件都是直流接地的。 使用围绕接地平面并且朝着谐振盘延伸的指状物导致改进的远视偏振。 天线馈电的所有组件都被构建和组合，而不使用焊料或电介质基板支撑，产生稳定的，耐腐蚀的低交叉极化天线。

    TUNABLE MICROWAVE DEVICES WITH AUTO-ADJUSTING MATCHING CIRCUIT
    14.
    发明申请
    TUNABLE MICROWAVE DEVICES WITH AUTO-ADJUSTING MATCHING CIRCUIT 审中-公开
    具有自动调节匹配电路的微型微波器件

    公开(公告)号：US20120119844A1

    公开(公告)日：2012-05-17

    申请号：US13302649

    申请日：2011-11-22

    Applicant: Cornelis Frederik du Toit ,  Deirdre A. Ryan

    Inventor： Cornelis Frederik du Toit ,  Deirdre A. Ryan

    IPC: H03H7/38

    CPC classification number: H03H7/40 ,  H01P5/04 ,  H01Q1/242 ,  H01Q1/50 ,  H03F1/56 ,  H03F3/60 ,  H03H7/38 ,  H04B1/0458

    Abstract: A variable impedance circuit includes a matching network for coupling to a tunable device, where the matching network has a first port and a second port, where the tunable device is coupled to one of the first port or the second port, and where the matching network has one or more variable dielectric capacitors. The one or more variable dielectric capacitors can be operable to receive a first of one or more variable voltage signals to cause the one or more variable dielectric capacitors to change a first impedance of the matching network. The tunable device can be operable to receive a second of one or more variable voltage signals to cause a change in a second impedance of the tunable device.

    Abstract translation: 可变阻抗电路包括用于耦合到可调谐设备的匹配网络，其中匹配网络具有第一端口和第二端口，其中可调谐设备耦合到第一端口或第二端口之一，并且匹配网络 具有一个或多个可变介质电容器。 一个或多个可变介电电容器可操作以接收一个或多个可变电压信号中的第一个，以使一个或多个可变介电电容器改变匹配网络的第一阻抗。 可调谐装置可操作以接收一个或多个可变电压信号中的第二个，以引起可调谐装置的第二阻抗的改变。

    TUNABLE MICROWAVE DEVICES WITH AUTO ADJUSTING MATCHING CIRCUIT
    15.
    发明申请
    TUNABLE MICROWAVE DEVICES WITH AUTO ADJUSTING MATCHING CIRCUIT 审中-公开
    具有自动调整匹配电路的微控制器件

    公开(公告)号：US20120119843A1

    公开(公告)日：2012-05-17

    申请号：US13302617

    申请日：2011-11-22

    Applicant: Cornelis Frederik du Toit ,  Deirdre A. Ryan

    Inventor： Cornelis Frederik du Toit ,  Deirdre A. Ryan

    IPC: H03H7/38

    CPC classification number: H03H7/40 ,  H01P5/04 ,  H01Q1/242 ,  H01Q1/50 ,  H03F1/56 ,  H03F3/60 ,  H03H7/38 ,  H04B1/0458

    Abstract: An impedance matching circuit includes a matching network for coupling to a variable load, where the matching network has a first port and a second port, and where the variable load is coupled to one of the first port or the second port. The matching network can have one or more variable dielectric capacitors, where the one or more variable dielectric capacitors are operable to receive one or more variable voltage signals to cause the one or more variable dielectric capacitors to change an impedance of the matching network, and where the change in the impedance of the matching network causes an increase in power transferred from the first port to the second port or from the second port to the first port.

    Abstract translation: 阻抗匹配电路包括用于耦合到可变负载的匹配网络，其中匹配网络具有第一端口和第二端口，并且其中可变负载耦合到第一端口或第二端口中的一个。 匹配网络可以具有一个或多个可变介质电容器，其中一个或多个可变介质电容器可操作以接收一个或多个可变电压信号，以使一个或多个可变介电电容器改变匹配网络的阻抗，并且其中 匹配网络的阻抗变化导致从第一端口传输到第二端口或从第二端口传输到第一端口的功率增加。

    Stacked patch antenna and method of construction therefore
    19.
    发明授权
    Stacked patch antenna and method of construction therefore 有权
    堆叠贴片天线及其结构方法

    公开(公告)号：US07019697B2

    公开(公告)日：2006-03-28

    申请号：US10914544

    申请日：2004-08-09

    Applicant: Cornelis Frederik du Toit

    Inventor： Cornelis Frederik du Toit

    IPC: H01Q1/38

    CPC classification number: H01Q9/0414 ,  H01Q19/005

    Abstract: A stacked antenna, comprising an upper patch including at least one strip-like part formed from a hole in the upper patch and at least one slot-like part formed from at least one notch in the upper patch; a lower patch including at least one strip-like part formed from a hole in the lower patch and at least one slot-like part formed from at least one notch in the lower patch; and wherein the at least one strip-like part of the upper patch is at least partially crossing over the at least one notch in the lower patch. In and embodiment of the present invention, the a portion of the at least one strip-like part of the lower patch is at least partially crossing under a hole in the upper patch and may further comprise at least one microstrip feed capable of connecting a ground plane with the lower patch.

    Abstract translation: 一种叠层天线，包括上片，其包括由上片中的孔形成的至少一个条状部分和由上贴片中的至少一个凹口形成的至少一个狭缝状部分; 下部贴片，包括由下部贴片中的孔形成的至少一个条状部分和由下部贴片中的至少一个凹口形成的至少一个狭缝状部分; 并且其中所述上贴片的所述至少一个条状部分至少部分地穿过所述下贴片中的所述至少一个凹口。 在本发明和实施例中，下部贴片的至少一个条状部分的一部分至少部分地在上部贴片的孔下方交叉，并且还可以包括至少一个能够连接地面的微带馈电 平面与较低的补丁。

    Tunable microwave devices with auto-adjusting matching circuit
    20.
    发明授权
    Tunable microwave devices with auto-adjusting matching circuit 有权
    可调谐微波器件具有自动调整匹配电路

    公开(公告)号：US08744384B2

    公开(公告)日：2014-06-03

    申请号：US12952395

    申请日：2010-11-23

    Applicant: Gregory Mendolia ,  James Andrew Martin, III ,  Izz Khayo ,  Cornelis Frederik Du Toit ,  Heinz Bachmann ,  William McKinzie

    Inventor： Gregory Mendolia ,  James Andrew Martin, III ,  Izz Khayo ,  Cornelis Frederik Du Toit ,  Heinz Bachmann ,  William McKinzie

    IPC: H04B1/04

    CPC classification number: H03H7/40 ,  H01P5/04 ,  H01Q1/242 ,  H01Q1/50 ,  H03F1/56 ,  H03F3/60 ,  H03H7/38 ,  H04B1/0458

    Abstract: An embodiment of the present invention provides an apparatus, comprising an input port and a dynamic impedance matching network capable of determining a mismatch at the input port and dynamically changing the RF match by using at least one matching element that includes at least one voltage tunable dielectric capacitor. The matching network may be a “Pi”, a “T”, or “ladder” type network and the apparatus may further comprise at least one directional coupler capable of signal collection by sampling a portion of an incident signal, a reflected signal or both. In an embodiment of the present invention, the apparatus may also include a control and power control & logic unit (PC LU) to convert input analog signals into digital signals and sensing VSWR phase and magnitude and processing the digital signals using an algorithm to give it a voltage value and wherein the voltage values may be compared to values coming from the coupler and once compared and matched, the values may be passed to a Hi Voltage Application Specific Integrated Circuit (HV ASIC) to transfer and distribute compensatory voltages to the matching network elements. Additional embodiments are disclosed.

    Abstract translation: 本发明的实施例提供了一种装置，其包括输入端口和动态阻抗匹配网络，其能够通过使用至少一个匹配元件来确定输入端口处的失配并动态地改变RF匹配，该匹配元件包括至少一个电压可调电介质 电容器。 匹配网络可以是“Pi”，“T”或“梯形”型网络，并且该装置还可以包括至少一个定向耦合器，其能够通过对入射信号的一部分，反射信号或两者进行采样来进行信号采集 。 在本发明的一个实施例中，该装置还可以包括控制和功率控制与逻辑单元（PC LU），用于将输入的模拟信号转换成数字信号，并且使用算法给VSWR相位和幅度并处理数字信号 电压值，并且其中电压值可以与来自耦合器的值进行比较，并且一旦比较和匹配，则该值可以被传递到高电压专用集成电路（HV ASIC），以将补偿电压传输和分配给匹配网络 元素。 公开了另外的实施例。

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