-
公开(公告)号：US10014584B1
公开(公告)日：2018-07-03
申请号：US15205234
申请日：2016-07-08
申请人： David A Tonn
发明人： David A Tonn
摘要： An antenna capable of being joined to an antenna feed perpendicular to a ground plane includes a conductive radiator and a cylindrical shell. The conductive radiator is tubular and has a longitudinal slot along the entire length thereof. The slot is parallel to the radiator's axis. The antenna feed can be connected across the slot. A cylindrical shell of a uniaxial dielectric material is provided outside and spaced apart from the conductive radiator and extends beyond ends of the conductive radiator. The cylindrical shell electrically contacts the ground plane. The shell is made from a material having a dielectric tensor with high impedance in the axial direction. This antenna gives enhanced bandwidth over ordinary slotted antennas. The shell can be applied to preexisting antennas.
-
公开(公告)号：US09882273B2
公开(公告)日：2018-01-30
申请号：US15351927
申请日：2016-11-15
申请人： David A Tonn
发明人： David A Tonn
摘要： An antenna includes a polymer coating having a VLF/LF element and an HF/VHF element embedded therein. A blocking choke is interposed between the VLF/LF element and the antenna feed t block HF/VHF signals. Small chokes are regularly positioned on the VLF/LF element to eliminate resonances caused by mutual capacitance between the elements. Reactive loads are positioned in said HF/VHF element at regular intervals for optimizing performance of the antenna in the HF/VHF radio bands. In further embodiments the antenna is provided as a floating antenna with the elements helically arranged therein.
-
公开(公告)号：US09865931B1
公开(公告)日：2018-01-09
申请号：US15220692
申请日：2016-07-27
申请人： David A Tonn , Susan M Safford
发明人： David A Tonn , Susan M Safford
摘要： An antenna capable of being joined to an antenna feed and being positioned perpendicular to a ground plane includes a conductive cylinder having a longitudinal slot. The antenna feed is connected across the slot. A plurality of dielectric rods are provided parallel to the slot with rod being positioned much less than one wavelength of the maximum operating frequency away from adjacent rods. The rods each have a length of at least 25 times its mean diameter is made from a material having a dielectric constant greater than 30. The combination of the conductive cylinder and dielectric rods provides increased bandwidth. A kit for modifying existing antennas is further provided.
-
公开(公告)号：US09407010B1
公开(公告)日：2016-08-02
申请号：US14598285
申请日：2015-01-16
申请人： David A Tonn , Susan M Safford
发明人： David A Tonn , Susan M Safford
摘要： An antenna includes a tubular, conductive radiator having a longitudinal slot formed therein from a first end of the conductive radiator to a second end of the conductive radiator. An antenna feed can be joined to the conductive radiator adjacent to and across the slot. An anisotropic plate is positioned a uniform distance from the conductive radiator, centered above the slot. The plate extends beyond the length of the radiator and is electrically insulated therefrom. An anisotropic tube surrounds the plate and radiator. The anisotropic tube is electrically insulated from the plate and radiator. In use, this antenna gives enhanced bandwidth over ordinary slotted antennas. This can also be applied to preexisting slotted antennas for enhanced bandwidth.
摘要翻译： 天线包括管状导电散热器，其具有从导电辐射体的第一端到导电辐射体的第二端形成在其中的纵向槽。 天线馈电可以连接到邻近并穿过狭槽的导电辐射体。 各向异性板与导电散热器相距一定距离，位于槽的中心。 板延伸超过散热器的长度并与其电绝缘。 各向异性管围绕板和散热器。 各向异性管与板和散热器电绝缘。 在使用中，该天线在普通开槽天线上提供了增强的带宽。 这也可以应用于预先存在的狭缝天线，以提高带宽。
-
公开(公告)号：US09553366B1
公开(公告)日：2017-01-24
申请号：US14280889
申请日：2014-05-19
申请人： David A Tonn
发明人： David A Tonn
摘要： An antenna includes a polymer coating having a VLF/LF element and an HF/VHF element embedded therein. A blocking choke is interposed between the VLF/LF element and the antenna feed to block HF/VHF signals. Small chokes are regularly positioned on the VLF/LF element to eliminate resonances caused by mutual capacitance between the elements. Reactive loads are positioned in said HF/VHF element at regular intervals for optimizing performance of the antenna in the HF/VHF radio bands. In further embodiments the antenna is provided as a floating antenna with the elements helically arranged therein.
摘要翻译： 天线包括具有VLF / LF元件和嵌入其中的HF / VHF元件的聚合物涂层。 在VLF / LF元件和天线馈电之间插入阻塞扼流圈以阻断HF / VHF信号。 小型扼流圈定期放置在VLF / LF元件上，以消除由元件之间的互电容引起的谐振。 无功负载以规则的间隔定位在所述HF / VHF元件中，以优化HF / VHF无线电频段中天线的性能。 在另外的实施例中，天线被提供为具有螺旋地布置在其中的元件的浮动天线。
-
公开(公告)号：US20110279336A1
公开(公告)日：2011-11-17
申请号：US12781195
申请日：2010-05-17
申请人： David A Tonn
发明人： David A Tonn
CPC分类号： H01Q1/34 , H01Q11/02 , Y10T29/49016
摘要： A buoyant cable antenna system includes an HF antenna section connected to an outboard end of a VLF/LF antenna. With respect to the HF antenna, the VLF/LF appears to be a standard coaxial cable so that the HF antenna can be configured as desired for HF antenna operation. The VLF/LF antenna is comprised of a segment of coaxial cable. The inboard end of the braided outer conductor of the segment of coaxial cable is connected to ground through a capacitor so that the VLF/LF signals are effectively isolated from ground. In this way, VLF/LF currents are induced on the outer braided conductor of the segment of coaxial cable to thereby operate as the VLF/LF antenna.
摘要翻译： 浮力电缆天线系统包括连接到VLF / LF天线外侧的HF天线部分。 对于HF天线，VLF / LF似乎是标准同轴电缆，因此HF天线可以根据需要进行高频天线操作的配置。 VLF / LF天线由一段同轴电缆组成。 同轴电缆段的编织外导体的内端通过电容器连接到地，使得VLF / LF信号与地面有效隔离。 以这种方式，在同轴电缆段的外编织导体上感应出VLF / LF电流，从而作为VLF / LF天线工作。
-
公开(公告)号：US10170841B1
公开(公告)日：2019-01-01
申请号：US15398799
申请日：2017-01-05
申请人： David A Tonn
发明人： David A Tonn
摘要： A dual mode antenna can be joined to an antenna feed. The antenna includes a slotted cylinder radiator that can be connected to the first conductor of the antenna feed and an electrically conductive ground plane that can be connected to the second conductor. The radiator axially extends perpendicularly from the ground plane and is electrically insulated therefrom. The first conductor can be joined to the radiator near one side of the slot. A reactive load is joined between the ground plane and the radiator near an opposite side of the slot. The reactive load impedes lower frequencies from the ground plane to the radiator. This allows the radiator to function as a monopole at lower frequencies and a slotted cylinder at higher frequencies.
-
公开(公告)号：US10069211B2
公开(公告)日：2018-09-04
申请号：US15267219
申请日：2016-09-16
申请人： David A Tonn
发明人： David A Tonn
摘要： An antenna for connection to a feed includes a substrate with a conductive ground plane. An emitter is positioned on the top face of the substrate, and the feed is connected to the emitter and ground plane. A spacer is positioned on the substrate above the emitter and one layer of high dielectric constant rods is positioned above the spacer. The rods are positioned in a single plane, coplanar with the emitter, and parallel to the dominant current distribution when the emitter is active. Further layers of spacers and rods can be positioned at a predetermined angle to the rods beneath. A kit is further provided for application of spacers and rods to preexisting antennas.
-
公开(公告)号：US09865930B1
公开(公告)日：2018-01-09
申请号：US15220688
申请日：2016-07-27
申请人： David A Tonn
发明人： David A Tonn
摘要： An antenna can be joined to an antenna feed and positioned perpendicular to a ground plane. The antenna includes a conductive radiator having a cylindrical portion. A slot is formed in the entire length of the cylindrical portion. Two parallel fins extend from the cylindrical portion at the slot. The fins can extend inwardly or outwardly. The antenna feed is connected to the conductive radiator on either side of the slot. An anisotropic magnetic material having a uniaxial permeability tensor is positioned in the slot between the two fins. This material is oriented such that it has a much greater permeability in the radial direction than in the other directions. The interior of the cylindrical portion can be filled with a dielectric material.
-
公开(公告)号：US10164340B1
公开(公告)日：2018-12-25
申请号：US15704251
申请日：2017-09-14
申请人： David A Tonn , Susan M Safford
发明人： David A Tonn , Susan M Safford
摘要： An antenna capable of being joined to an antenna feed perpendicular to a ground plane includes a monopole extending perpendicularly from the ground plane. The antenna feed is joined to the monopole. An innermost shell is provided about the monopole. The innermost shell is made from a dielectric material having a dielectric tensor with high permittivity in the direction of the monopole axis. An intermediate shell provided outside the innermost shell. The intermediate shell also has dielectric tensor having high impedance in the direction parallel to the monopole axis. An outermost shell is provided having a perimeter approximately equal to the length of the monopole. The outermost shell also has a dielectric tensor with high impedance in the direction of the monopole axis.
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.013 秒)
