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公开(公告)号：US20090079620A1
公开(公告)日：2009-03-26
申请号：US12233818
申请日：2008-09-19
IPC分类号： G01S13/00
CPC分类号： G01S7/03 , G01S13/32 , G01S13/536 , G01S13/584 , H01Q3/22 , H01Q25/00
摘要： A radar system is disclosed, which comprises an orthogonal frequency division multiplexing (OFDM) modem and a frequency scanning antenna. In transmit, the OFDM modem modulates radar waveforms and the frequency scanning antenna radiates the OFDM modulated radio frequency (RF) energy. In receive mode, the frequency scanning antenna captures the echoes and the OFDM modem demodulates the echoes. Directionality of the frequency scanning antenna is dependent upon RF carrier frequency. In other features, the radar system further comprises a transmit/receive (T/R) module that up-converts and amplifies the OFDM modulation, and outputs the amplified signal to the frequency scanning antenna. The T/R module amplifies and down-converts a received RF echo from the frequency scanning antenna and outputs the down-converted echo to the OFDM modem. A plurality of scanning angles are measured simultaneously.
摘要翻译： 公开了一种雷达系统，其包括正交频分复用（OFDM）调制解调器和频率扫描天线。 在传输中，OFDM调制解调器调制雷达波形，频率扫描天线辐射OFDM调制射频（RF）能量。 在接收模式下，频率扫描天线捕获回波，OFDM调制解调器解调回波。 频率扫描天线的方向性取决于RF载波频率。 在其他特征中，雷达系统还包括对OFDM调制进行上变频和放大的发送/接收（T / R）模块，并将放大的信号输出到频率扫描天线。 T / R模块对来自频率扫描天线的接收到的RF回波进行放大和下变频，并将下变频回波输出到OFDM调制解调器。 同时测量多个扫描角度。
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2.发明申请公开(公告)号：US20080309567A1
公开(公告)日：2008-12-18
申请号：US11764060
申请日：2007-06-15
CPC分类号： H01Q21/28 , H01Q1/2241 , H01Q9/0421 , H01Q13/22
摘要： An antenna assembly that has particular application for a hand held reader that interrogates sensors embedded within a vehicle tire, such as RFID sensors and tire pressure sensors. In one embodiment, the antenna assembly includes a first antenna operating in the 432-435 MHz range that employs a meander-line slot that provides increased antenna cross-polarization so that the sensor can be interrogated regardless of the antenna orientation and polarization. The antenna assembly also includes two RFID antennas that operate in the 902-928 MHz range that are planar antenna that make the antenna bi-directional, polarization free and a wide enough bandwidth for the RFID interrogation.
摘要翻译： 一种天线组件，其特别适用于用于询问嵌入在车辆轮胎内的传感器的手持读取器，例如RFID传感器和轮胎压力传感器。 在一个实施例中，天线组件包括以432-435MHz范围工作的第一天线，该第一天线采用提供增加的天线交叉极化的曲折线槽，使得无论天线取向和极化如何，可以询问传感器。 天线组件还包括在902-928MHz范围内工作的两个RFID天线，其是平面天线，其使天线双向，无偏振，并且具有足够宽的带宽用于RFID询问。
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公开(公告)号：US07268741B2
公开(公告)日：2007-09-11
申请号：US11208700
申请日：2005-08-22
申请人： Kamal Sarabandi , Nader Behdad
发明人： Kamal Sarabandi , Nader Behdad
IPC分类号： H01Q21/00
摘要： A single-element antenna system that provides a wide bandwidth and consistent polarization over the frequency range to which the antenna is impedance matched. In one embodiment, the wideband antenna system includes two parallel coupled sectorial loop antennas (CSLA) that are coupled along an axis of symmetry. In another embodiment, half of the coupled sectorial loop antenna is electrically coupled to a ground plane, where the antenna includes one pie-slice shaped sector and two arches. In alternate embodiments, sections of the sector can be removed to reduce the weight of the antenna system.
摘要翻译： 一个单元天线系统，在天线阻抗匹配的频率范围内提供宽带宽和一致的极化。 在一个实施例中，宽带天线系统包括沿对称轴耦合的两个并联的扇区环路天线（CSLA）。 在另一个实施例中，耦合的扇区环形天线的一半电耦合到接地平面，其中天线包括一个饼形扇形扇区和两个拱形。 在替代实施例中，可以移除扇区的部分以减小天线系统的重量。
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公开(公告)号：US08686920B2
公开(公告)日：2014-04-01
申请号：US13115377
申请日：2011-05-25
申请人： Kamal Sarabandi , Young Jun Song
发明人： Kamal Sarabandi , Young Jun Song
CPC分类号： H01Q21/29 , H01Q1/525 , H01Q9/42 , H04B7/15564
摘要： A radio repeater system is provided that utilizes miniaturized antennas and a meta-material channel isolator. The radio repeater is comprised of: a receive antenna configured to receive a signal at a desired channel frequency; a transmit antenna configured to transmit the signal at the channel frequency; an amplifier electrically connected between the receive antenna and the transmit antenna; and an array of resonating circuits disposed spatially between the receive antenna and the transmit antenna. Each resonating circuit is designed to resonant at the channel frequency and thereby suppress propagation of surface waves between the antennas.
摘要翻译： 提供了使用小型化天线和超材料信道隔离器的无线电中继器系统。 无线电中继器包括：接收天线，被配置为以期望的信道频率接收信号; 发送天线，被配置为以所述信道频率发送所述信号; 电连接在接收天线和发射天线之间的放大器; 以及空间上布置在接收天线和发射天线之间的谐振电路阵列。 每个谐振电路设计为在通道频率处谐振，从而抑制天线之间的表面波的传播。
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公开(公告)号：US20070285331A1
公开(公告)日：2007-12-13
申请号：US11835250
申请日：2007-08-07
申请人： Kamal Sarabandi , Nader Behdad
发明人： Kamal Sarabandi , Nader Behdad
摘要： A two-sided overlapping coupled sectorial loop antenna (CSLA). The CSLA includes a ground plane and a dielectric substrate mounted substantially perpendicular thereto. A first metalized trace is deposited on one side of the substrate and a second metalized trace is deposited on the other side of the substrate, where the metalized traces overlap at a center area and are coupled to a common feed at the center area. In one embodiment, the size of the CSLA is further reduced by adding inductors to the traces.
摘要翻译： 双面重叠耦合扇形环天线（CSLA）。 CSLA包括基本垂直于其安装的接地平面和电介质基片。 第一金属化迹线沉积在衬底的一侧上，并且第二金属化迹线沉积在衬底的另一侧上，其中金属化迹线在中心区域处重叠并且耦合到中心区域处的共同馈电。 在一个实施例中，通过向迹线添加电感器来进一步减小CSLA的尺寸。
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公开(公告)号：US20070279296A1
公开(公告)日：2007-12-06
申请号：US11835242
申请日：2007-08-07
申请人： Kamal Sarabandi , Nader Behdad
发明人： Kamal Sarabandi , Nader Behdad
IPC分类号： H01Q1/38
摘要： A wide-band double-loop antenna. The antenna includes a metal trace deposited on a dielectric substrate. The metal trace includes a plurality of trace legs and a cross-bar trace that define an E-shape. Two of the legs are electrically coupled to a ground plane, and the third leg is electrically coupled to a feed, such as a center conductor of a coaxial connector. An outer conductor of the connector is electrically coupled to the ground plane.
摘要翻译： 宽带双环天线。 天线包括沉积在电介质基底上的金属迹线。 金属迹线包括多个迹线腿和限定E形的横杆迹线。 两个腿电耦合到接地平面，并且第三腿电耦合到诸如同轴连接器的中心导体的馈电。 连接器的外导体电耦合到接地平面。
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7.发明申请Antenna system embedded in a support structure for interrogating a tire sensor transponder 失效天线系统嵌入在用于询问轮胎传感器应答器的支撑结构中公开(公告)号：US20050110627A1
公开(公告)日：2005-05-26
申请号：US10954555
申请日：2004-09-30
申请人： Kazem Sabet , Kamal Sarabandi , Linda Katehi , Jiyoun Munn
发明人： Kazem Sabet , Kamal Sarabandi , Linda Katehi , Jiyoun Munn
IPC分类号： B60C23/00 , H01Q20060101
CPC分类号： G08G1/042 , B60C23/0408 , H01Q1/2216 , H01Q1/2241 , H01Q1/3233 , H01Q5/40 , H01Q5/49 , H01Q13/085 , H01Q19/30 , H01Q21/28
摘要： A vehicle tire interrogation system for interrogating sensors embedded in a vehicle tire. The interrogation system both transmits and receives appropriate RF signals to and from the sensors. The system includes antennas operating at two separate frequency bands that have an input impedance at both frequency bands at 50 ohms, are horizontally polarized, and have a gain at a minimum of 2 dBi at the two frequency bands. The antennas may be printed dual band antennas, such as wideband tapered slot antennas, dual band printed dipoles with reflectors or Yagi-Uda array antennas. The antennas can be embedded in various support structures to protect both the antenna and the vehicle tires.
摘要翻译： 一种用于询问嵌入在车辆轮胎中的传感器的车辆轮胎询问系统。 询问系统向传感器发送和接收适当的RF信号。 该系统包括在两个分开的频带工作的天线，其在50欧姆的两个频带处具有输入阻抗，水平极化，并且在两个频带处具有最小2dBi的增益。 这些天线可以是印刷双频天线，例如宽带锥形槽天线，具有反射器的双频带印刷偶极子或八木Uda阵列天线。 天线可嵌入各种支撑结构中，以保护天线和车辆轮胎。
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公开(公告)号：US20150263429A1
公开(公告)日：2015-09-17
申请号：US13600570
申请日：2012-08-31
IPC分类号： H01Q13/10
CPC分类号： H01Q1/36 , H01Q13/10 , H01Q13/18 , H01Q13/203 , H01Q21/0037 , H01Q21/065
摘要： A frequency scanning traveling wave antenna array is presented for Y-band application. This antenna is a fast wave leaky structure based on rectangular waveguides in which slots cut on the broad wall of the waveguide serve as radiating elements. A series of aperture-coupled patch arrays are fed by these slots. This antenna offers 2° and 30° beam widths in azimuth and elevation direction, respectively, and is capable of ±25° beam scanning with frequency around the broadside direction. The waveguide can be fed through a membrane-supported cavity-backed CPW which is the output of a frequency multiplier providing 230˜245 GHz FMCW signal. This structure can be planar and compatible with micromachining application and can be fabricated using DRIE of silicon.
摘要翻译： 呈现Y波段应用的频率扫描行波天线阵列。 该天线是基于矩形波导的快速波泄漏结构，其中在波导的宽壁上切割的槽用作辐射元件。 一系列光圈耦合贴片阵列由这些插槽供电。 该天线分别在方位角和仰角方向上提供2°和30°波束宽度，并且能够在宽边方向上频率进行±25°波束扫描。 波导可以通过膜支撑的腔背CPW进行馈送，该CPW是提供230〜245GHz FMCW信号的倍频器的输出。 该结构可以是平面的并且与微加工应用相兼容，并且可以使用硅的DRIE来制造。
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公开(公告)号：US08633866B2
公开(公告)日：2014-01-21
申请号：US12792827
申请日：2010-06-03
申请人： Kamal Sarabandi , Farhad Bayatpur
发明人： Kamal Sarabandi , Farhad Bayatpur
IPC分类号： H01Q15/02
CPC分类号： H01Q15/0053 , H01Q15/0026 , H01Q15/0086
摘要： Frequency-selective surface (FSS) structures that may be used in a variety of different filtering capacities and applications. According to exemplary embodiments, there is disclosed: 1) a one-sided FSS structure that has a conductive grid and conductive loops located on the same side of a thin substrate and exhibits a single pole frequency response; 2) a multiple layer FSS structure that has several one-sided FSS layers and exhibits a multiple pole frequency response; 3) a loop/loop tunable FSS structure where the frequency response can be adjusted or tuned with a bias network; 4) a grid/grid tunable FSS structure where the frequency response can be adjusted or tuned without the use of bias network; and 5) an antenna arrangement that has a FSS structure placed over top of antenna array so that the need for separate components, like bulky filters in a transceiver chain, can be eliminated.
摘要翻译： 频率选择性表面（FSS）结构可用于各种不同的过滤能力和应用。 根据示例性实施例，公开了：1）单面FSS结构，其具有位于薄衬底的同一侧上的导电栅格和导电环，并呈现单极频率响应; 2）具有多个单面FSS层并呈现多极频率响应的多层FSS结构; 3）环路/环路可调FSS结构，其中频率响应可以用偏置网络进行调整或调谐; 4）网格/网格可调谐FSS结构，其中可以在不使用偏置网络的情况下调整或调整频率响应; 以及5）天线布置，其具有放置在天线阵列顶部的FSS结构，使得可以消除对诸如收发器链中的庞大滤波器的单独组件的需要。
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公开(公告)号：US07994969B2
公开(公告)日：2011-08-09
申请号：US12233818
申请日：2008-09-19
IPC分类号： G01S13/00
CPC分类号： G01S7/03 , G01S13/32 , G01S13/536 , G01S13/584 , H01Q3/22 , H01Q25/00
摘要： A radar system is disclosed, which comprises an orthogonal frequency division multiplexing (OFDM) modem and a frequency scanning antenna. In transmit, the OFDM modem modulates radar waveforms and the frequency scanning antenna radiates the OFDM modulated radio frequency (RF) energy. In receive mode, the frequency scanning antenna captures the echoes and the OFDM modem demodulates the echoes. Directionality of the frequency scanning antenna is dependent upon RF carrier frequency. In other features, the radar system further comprises a transmit/receive (T/R) module that up-converts and amplifies the OFDM modulation, and outputs the amplified signal to the frequency scanning antenna. The T/R module amplifies and down-converts a received RF echo from the frequency scanning antenna and outputs the down-converted echo to the OFDM modem. A plurality of scanning angles are measured simultaneously.
摘要翻译： 公开了一种雷达系统，其包括正交频分复用（OFDM）调制解调器和频率扫描天线。 在传输中，OFDM调制解调器调制雷达波形，频率扫描天线辐射OFDM调制射频（RF）能量。 在接收模式下，频率扫描天线捕获回波，OFDM调制解调器解调回波。 频率扫描天线的方向性取决于RF载波频率。 在其他特征中，雷达系统还包括对OFDM调制进行上变频和放大的发送/接收（T / R）模块，并将放大的信号输出到频率扫描天线。 T / R模块对来自频率扫描天线的接收到的RF回波进行放大和下变频，并将下变频回波输出到OFDM调制解调器。 同时测量多个扫描角度。
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