-
公开(公告)号：US5319377A
公开(公告)日：1994-06-07
申请号：US864709
申请日：1992-04-07
申请人： Mike Thomas , Ronald I. Wolfson
发明人： Mike Thomas , Ronald I. Wolfson
CPC分类号： H01Q13/085
摘要： This invention discloses an antenna element (12) or an array of antenna elements (52) for use in multifunctional systems which exhibits wide bandwidth, small size, polarization diversity and conformality. In one preferred embodiment, an array of circular conductive patches (56,58) are formed on a dielectric substrate (54) in which adjacent patches are formed on opposite sides of the substrate (54). Each of the opposite conducting patches (56,58) are configured to form a dual flared slotline such that an electric field created between the two conductive patches (56,58) will exhibit a wide range of impedance matching to free space. By exciting the conductive patches (56,58), radiating electromagnetic waves having a polarization with respect to the orientation of the slotlines is produced. By this, a single array of antenna elements (52) can be used in a multifunctional system.
摘要翻译： 本发明公开了一种在多功能系统中使用的天线元件（12）或天线元件阵列（52），其具有宽带宽，小尺寸，极化分集和一致性。 在一个优选实施例中，圆形导电片（56,58）的阵列形成在电介质基片（54）上，相邻片形成在基底（54）的相对两侧。 每个相对的导电贴片（56,58）被配置为形成双喇叭形槽线，使得在两个导电贴片（56,58）之间产生的电场将表现出宽范围的阻抗匹配到自由空间。 通过激励导电块（56,58），产生相对于槽线的取向辐射具有极化的电磁波。 由此，可以在多功能系统中使用单个天线元件阵列（52）。
-
公开(公告)号：US5905472A
公开(公告)日：1999-05-18
申请号：US906699
申请日：1997-08-06
CPC分类号： H01Q13/28 , H01Q13/20 , H01Q21/005
摘要： A planar array antenna having a switching matrix that couples an RF signal to two distributed ferrite scanning line feeds that feed a planar continuous transverse stub array antenna. The scanning line feeds couple RF energy to the antenna from opposite sides to form a total of four beams offset in space that each cover different angular scan sectors. The antenna has reduced complexity and lower design and production costs. The use of dual ferrite scanning line feeds, the switching matrix, and the continuous transverse stub antenna to obtain wide-angle scanning provides significantly improved performance. The present invention uses the two distributed ferrite scanning line feeds to obtain greater scan coverage at upper millimeter-wave frequencies, where realizable ferrite materials are less active and provide diminished scan capability. The scanning line feeds and planar array antenna may be designed so that the four scan sectors are contiguous, to increase the angular scan coverage of the antenna. The switching matrix is used to sequentially feed each of four RF ports, which effectively produces a single beam that scans over the four contiguous scan sectors.
摘要翻译： 一种具有将RF信号耦合到两个分布式铁氧体扫描线馈电的平面阵列天线，其馈送平面连续横向短截线阵列天线。 扫描线从相对侧将耦合的RF能量馈送到天线，以形成在空间中偏移的总共四个光束，每个光束覆盖不同的角度扫描扇区。 天线降低了复杂性，降低了设计和生产成本。 使用双铁氧体扫描线馈电，开关矩阵和连续横向短截线天线获得广角扫描可显着提高性能。 本发明使用两个分布式铁氧体扫描线馈电来获得较高的毫米波频率的较大的扫描范围，其中可实现的铁氧体材料的活性较低，扫描能力降低。 扫描线馈电和平面阵列天线可以被设计成使得四个扫描扇区是连续的，以增加天线的角度扫描覆盖。 开关矩阵用于顺序馈送四个RF端口中的每一个，其有效地产生在四个相邻扫描扇区上扫描的单个波束。
-
3.发明授权Radiator bandwidth enhancement using dielectrics with inverse frequency dependence 失效使用具有反频率依赖性的电介质的散热器带宽增强
公开(公告)号：US5497168A
公开(公告)日：1996-03-05
申请号：US286105
申请日：1994-08-04
申请人： Michael D. Thomas , Ronald I. Wolfson , Jerome I. Glaser , Joseph P. Smalanskas , Shane H. Hunter , Allen M. Tran
发明人： Michael D. Thomas , Ronald I. Wolfson , Jerome I. Glaser , Joseph P. Smalanskas , Shane H. Hunter , Allen M. Tran
CPC分类号： H01Q9/0407 , H01Q17/00 , H01Q3/44
摘要： A dielectric material having a dielectric constant which varies inversely with frequency, and preferably with the second power of frequency, fills the space between a radiator and a reflecting groundplane. The back-directed wave is reflected back to the radiator in phase with the directly radiated wave over a wide frequency band, increasing the radiator efficiency.
摘要翻译： 具有与频率成反比变化的介电常数和优选地具有第二频率功率的介电材料填充散热器和反射接地面之间的空间。 背向波在宽频带上与直接辐射波相反地反射回散热器，从而提高散热器的效率。
-
公开(公告)号：US4356496A
公开(公告)日：1982-10-26
申请号：US231383
申请日：1981-02-04
申请人： Ronald I. Wolfson , Ching-Fai Cho
发明人： Ronald I. Wolfson , Ching-Fai Cho
摘要： A multiple-port loop-coupled commutating feed for a circular or cylindrical antenna array which is circumferentially scanned. A rotor assembly having a plurality of elongated coupling loops circumferentially spaced about an arc of its perimeter is fed from a stripline feed configuration excited at the driven central axis of the rotor. The rotor loops are formed by extension of printed circuit traces extant within the stripline feed about an arc of the rotor assembly. A plurality of elongated stator loops with essentially the same radial dimensions as the aforementioned rotor loops is provided, however the stator loops are distributed throughout the full 360.degree. of the circular perimeter of the device to continuously couple a changing fraction of the stator loops to the rotor as the latter is rotated. An output port is provided connected to each stator loop and these output ports may then be discretely connected to corresponding elements of a circular array or columns of elements of a cylindrical array.
摘要翻译： 用于圆形或圆柱形天线阵列的多端口环路耦合整流馈电，其圆周扫描。 具有围绕其周边弧线周向间隔开的多个细长联接环的转子组件从在转子的被驱动中心轴线处激发的带状线进给构型进给。 转子环通过围绕转子组件的弧线的带状线进料内的印刷电路迹线的延伸形成。 提供了与上述转子环基本相同的径向尺寸的多个细长的定子环，然而定子环分布在装置的圆周的整个360°内，以将定子环的变化部分连续地连接到 转子随后转动。 提供连接到每个定子回路的输出端口，然后这些输出端口可以离散地连接到圆柱形阵列的圆柱体或多列元件的相应元件。
-
公开(公告)号：US5652596A
公开(公告)日：1997-07-29
申请号：US532371
申请日：1995-09-22
申请人： Richard L. Abrams , Jan Grinberg , K. C. Lim , Ronald I. Wolfson
发明人： Richard L. Abrams , Jan Grinberg , K. C. Lim , Ronald I. Wolfson
CPC分类号： H01Q3/14 , H01Q1/3233 , H01Q13/28
摘要： A compact scanned antenna which includes a radiator, a rotatable tube and a line source. The radiator is formed by plating a shaped dielectric core. It generates an antenna beam at an output aperture in response to a microwave signal at an input port. The line source generates a radiation sheet which is directed across a signal plane to the input pot. The tube has a cylindrical wall which is positioned across the signal plane. As the tube rotates, refractive or diffractive transmission structures pass through the signal plane. The refractive structures include linear segments which refract the wavefront of the radiation sheet. Because the wavefront slope at the radiator's aperture is a function of the wavefront slope at its input port, the antenna beam is scanned. The linear contour segments have the same inclination but are not colinear. This arrangement reduces the thickness of the tube wall. Phase coherence is achieved by an appropriate radial spacing of adjacent ends of contour segments. The diffractive structures are arranged to vary the spacing of diffraction rings as they pass through the signal plane. This produces scanned, first-order antenna beams. The line source is adapted to direct a predetermined one of these beams into the radiator.
摘要翻译： 一种紧凑的扫描天线，其包括散热器，可旋转管和线源。 散热器通过镀成形介质芯形成。 它响应于输入端口处的微波信号而在输出孔径处产生天线波束。 线源产生辐射片，其被引导到信号平面到输入端。 该管具有横跨信号平面定位的圆柱形壁。 当管旋转时，折射或衍射透射结构通过信号平面。 折射结构包括折射辐射片的波前的线段。 因为散热器孔径处的波前斜率是其输入端口处的波前斜率的函数，所以天线波束被扫描。 线性轮廓段具有相同的倾斜度，但不是共线的。 这种布置减小了管壁的厚度。 相位相干是通过轮廓段的相邻端的适当的径向间距实现的。 衍射结构被布置成当衍射环通过信号平面时改变衍射环的间隔。 这产生扫描的一阶天线波束。 线源适于将这些光束中的预定的一个引导到散热器中。
-
公开(公告)号：US4660047A
公开(公告)日：1987-04-21
申请号：US660176
申请日：1984-10-12
CPC分类号： H01Q9/0457 , H01Q9/065
摘要： An antenna element including microstrip having a microstrip feed line and ground plane on opposite sides of a substrate, a resonator on the same side of the substrate as the microstrip feed line, and a dipole insulated from the feed line and from the resonator.
摘要翻译： 一种天线元件，包括具有微带馈电线和在衬底的相对侧上的接地平面的微带，在与微带馈电线相同的衬底相同侧上的谐振器，以及与馈电线和谐振器绝缘的偶极子。
-
公开(公告)号：US4258365A
公开(公告)日：1981-03-24
申请号：US101258
申请日：1979-12-07
摘要： An annular rotary antenna feed coupler especially for around-the-mast use, as on shipboard. A housing in the general shape of a cylinder with a central axial opening essentially concentric with the axial center line of the housing contains a circumferential distribution of a number of fixed axially elongated, conductive loops each with a feed port. Radially spaced therefrom, a second, group of elongated conductive loops circumferentially distributed about a circle of different radius as compared to the aforementioned fixed loops is rotatably mounted. A corresponding plurality of ports, one for each rotating loop, is also provided, and input and output combiner/divider devices, one for the fixed and another for the rotating sub-assemblies serve to combine all ports into a single fixed and a single rotating port. Mechanically, the rotating combiner/divider rotates with the antenna array with which it operates.
摘要翻译： 一种环形旋转天线馈线耦合器，特别适用于桅杆使用，如在船上。 具有与壳体的轴向中心线基本上同心的中心轴向开口的圆筒的一般形状的壳体包含多个具有进料口的多个固定的轴向细长的导电回路的圆周分布。 与上述固定环相比，与其径向间隔开的第二组细长导电环周向分布在不同半径的圆周上。 还提供对应的多个端口，每个端口一个用于每个旋转环路，并且输入和输出组合器/分配器装置，一个用于固定的，另一个用于旋转子组件，用于将所有端口组合成单个固定和单个旋转 港口。 机械地，旋转组合器/分配器与其操作的天线阵列一起旋转。
-
公开(公告)号：US4161705A
公开(公告)日：1979-07-17
申请号：US861524
申请日：1977-12-19
摘要： The invention involves in-phase power splitting from an input into separate pairs of paralleled input variable circuits which may be linear amplifiers or linear controlled attenuators. The outputs of these circuits feed the input branches of a pair of 180.degree. hybrid circuits, the outputs of those hybrids providing the inputs of a 3 db quadrature coupler. An output of this coupler then provides the overall output which is shifted in phase with respect to the original input as a function of the gain control signal applied differentially between the variable circuits of the aforementioned pairs as the cosine of the desired phase angle in respect to the first pair of circuits and in accordance with the sine of the desired phase angle at the control terminals of the second pair of circuits.
摘要翻译： 本发明涉及从输入到同步的输入可变电路对中的同相功率分离，其可以是线性放大器或线性受控衰减器。 这些电路的输出馈送一对180°混合电路的输入分支，这些混合电路的输出提供3db正交耦合器的输入。 该耦合器的输出然后提供作为在前述对的可变电路之间差分施加的增益控制信号作为相对于原始输入的相位的相位的整体输出，作为所需相位角的余弦相对于 第一对电路，并且根据在第二对电路的控制端子处的期望相位角的正弦。
-
公开(公告)号：US5493305A
公开(公告)日：1996-02-20
申请号：US48635
申请日：1993-04-15
CPC分类号： H01Q21/0025 , H01Q21/0087
摘要： An electronic device operating in the microwave frequency range having components disposed in a plurality of planes, wherein the planes are stacked vertically. The electronic device is a T/R module or element forming a part of a subarray used in an active array radar. The T/R module or element comprises a transmit chip, a receive chip, low noise amplifiers, a phase shifter, an attenuator, switches, dc power supply, interconnects that interconnect the foregoing components and logic circuits to control the foregoing components. The components when stacked in a 3-D package are disposed behind a radiator or antenna, which transmits and receives the microwave signals. Behind the T/R module or element is a manifold which provides input and output to and from the T/R module or element. The microwave chips of the T/R module are monolithic microwave integrated circuit chips and control logic, which are disposed in an aluminum nitride substrate and coated with a conformal hermetic coating. The 3-D chip package can optionally include micro channel cooling by adding additional layers. The integrated circuits also employ a flip chip design for mounting to the wafers. Optional photonic interconnects could be used for communication between levels in the 3-D package and can be used between subarrays as a manifold.
摘要翻译： 一种在微波频率范围内工作的电子设备，其具有设置在多个平面中的部件，其中所述平面垂直堆叠。 电子设备是形成在有源阵列雷达中使用的子阵列的一部分的T / R模块或元件。 T / R模块或元件包括发射芯片，接收芯片，低噪声放大器，移相器，衰减器，开关，直流电源，互连上述组件的互连和逻辑电路以控制前述组件。 堆叠在3-D封装中的部件设置在发射和接收微波信号的散热器或天线后面。 T / R模块或元件后面是向T / R模块或元件提供输入和输出的歧管。 T / R模块的微波芯片是单片微波集成电路芯片和控制逻辑，它们设置在氮化铝衬底中并涂覆有保形密封涂层。 3-D芯片封装可以通过添加附加层来选择性地包括微通道冷却。 集成电路还采用倒装芯片设计来安装到晶片。 可选的光子互连可以用于3-D封装中的电平之间的通信，并且可以在作为歧管的子阵列之间使用。
-
公开(公告)号：US4742355A
公开(公告)日：1988-05-03
申请号：US906060
申请日：1986-09-10
CPC分类号： H01P11/002 , H01Q21/0087 , H01Q3/22 , Y10T29/49016
摘要： An improved serpentine feed and method of making same. The invention includes a block of conductive material having a primary microwave waveguide channel and at least one secondary channel. Each secondary channel has at least one broadwall common to the primary channel. A high performance coupler is provided in the common broadwall by which microwave energy communicates from the primary channel to the secondary channel. The claimed method of the invention includes the steps of (a) machining mating halves of a first elongated channel into first and second blocks of conductive material; then, (b) machining mating halves of a plurality of second channels into the first and second blocks longitudinally parallel with at least a portion of the halves of the first channel thereby providing a plurality of common broadwalls between the first channel and each of the second channels; next, (c) machining a plurality of slots in each of the common broadwalls between selective first and second channels; and finally, (d) either mechanically fastening or bonding the first and second blocks in alignment such that halves of the first and second channels mate to provide primary and secondary microwave waveguides respectively.
摘要翻译： 一种改进的蛇纹石饲料及其制备方法。 本发明包括具有初级微波波导通道和至少一个次级通道的导电材料块。 每个次要通道具有至少一个与主通道共用的宽壁。 在通用宽壁中提供高性能耦合器，微波能量从主通道传播到次通道。 本发明要求保护的方法包括以下步骤：（a）将第一细长通道的配合半部加工成第一和第二导电材料块; 然后，（b）将多个第二通道的配合半部加工成与所述第一通道的所述半部的至少一部分纵向平行的所述第一和第二块，从而在所述第一通道和所述第二通道的每一个之间提供多个公共的宽壁 渠道; 接下来，（c）在选择性第一和第二通道之间的每个普通宽壁中加工多个槽; 最后，（d）将第一和第二块机械地紧固或结合在一起，使得第一和第二通道的一半分别配合以提供初级和次级微波波导。
-
-
-
-
-
-
-
-
-
搜索结果
23 条记录 (耗时 0.017 秒)
