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1. 发明授权

US4623894A Interleaved waveguide and dipole dual band array antenna 失效
标题翻译：交错波导和偶极双频阵列天线
公开(公告)号：US4623894A
公开(公告)日：1986-11-18
申请号：US623857
申请日：1984-06-22
申请人： Kuan M. Lee , Ruey S. Chu , Nam S. Wong , James U. Clark , Raymond Tang
发明人： Kuan M. Lee , Ruey S. Chu , Nam S. Wong , James U. Clark , Raymond Tang
IPC分类号： H01Q5/00 , H01Q5/42 , H01Q9/06 , H01Q21/06 , H01Q21/28
CPC分类号： H01Q21/062 , H01Q21/061 , H01Q5/42 , H01Q9/065
摘要： A dual band array antenna is disclosed having interleaved waveguide and dipole arrays, each operating in a different frequency band. The orientation of the waveguides and dipoles is such that polarization of the signals of the two frequency bands is perpendicular to each other, thus reducing mutual coupling. The waveguides are used for the higher frequency band and their cutoff frequency is selected to be above the lower frequency band at which the dipoles operate, in order to reduce mutual coupling into the waveguides. In one embodiment the dipoles are printed on a substrate having a dielectric constant selected so that dipole spacing is the same as the waveguide spacing. This eliminates grating lobe formation in the radiation pattern of the waveguide array. A low pass filter is included in the dipole feed circuit to reject the frequencies at which the waveguides operate. As a result of the invention, two beams of two different frequency bands are independently and simultaneously steerable in a single antenna aperture.
摘要翻译：公开了一种双波段阵列天线，其具有交错的波导和偶极阵列，每个阵列在不同的频带中工作。波导和偶极子的取向使得两个频带的信号的极化彼此垂直，从而减少了相互耦合。波导用于较高频带，并且其截止频率被选择为高于偶极子操作的较低频带，以减少与波导的相互耦合。在一个实施例中，将偶极子印刷在具有选定的介电常数的基板上，使得偶极间距与波导间隔相同。这消除了波导阵列的辐射图中的光栅波瓣形成。偶极馈电电路中包括一个低通滤波器，以抑制波导工作的频率。作为本发明的结果，两个不同频带的两个波束在单个天线孔径中是独立且同时可控的。

2. 发明授权

US5087922A Multi-frequency band phased array antenna using coplanar dipole array with multiple feed ports 失效
标题翻译：多频带相控阵天线，使用具有多个馈电端口的共面偶极阵列
公开(公告)号：US5087922A
公开(公告)日：1992-02-11
申请号：US447974
申请日：1989-12-08
申请人： Raymond Tang , Kuan M. Lee , Ruey S. Chu
发明人： Raymond Tang , Kuan M. Lee , Ruey S. Chu
IPC分类号： H01Q5/00 , H01Q5/02 , H01Q5/321 , H01Q5/42 , H01Q21/06 , H01Q21/12
CPC分类号： H01Q21/12 , H01Q21/062 , H01Q5/321 , H01Q5/42 , H01Q9/065
摘要： In a printed circuit embodiment, dielectric boards in a multilayer arrangement have their ends protruding from a ground plane. Sets of printed dipole elements are disposed along the edge of each board. Each set of dipole elements has three feed ports. Bandpass filters are provided for each feed port. Phase shifters are coupled to each of the feed ports through its respective bandpass filter. At the low band, the outer feed ports are shorted by the filters so that the two sections of dipole elements to the left of the center feed port form one lone band dipole arm, and the two sections of dipole elements to the right of the center feed port form the other low band dipole arm. The low band dipole is driven at the center feed port. At the high band, the center feed port becomes an open circuit so that the two sections to the left thereof form one high band dipole, and the two sections to the right thereof form a second high band dipole. The two outer feed ports drive the dipole array at the high band. In an MMIC embodiment, printed circuit stubs are bridged across the outer feed ports. The length of each stub is one wavelength at the low frequency band, and one-and-one-half wavelengths at the high frequency band. At the low frequency, the stubs appear to be short-circuited. At the high frequency band, the terminals of the stubs provide a 180 degree phase difference for a balun.
摘要翻译：在印刷电路实施例中，多层布置的电介质板的端部从接地平面突出。印刷偶极子元件沿着每个板的边缘设置。每套偶极子元件具有三个馈电端口。为每个进料口提供带通滤光片。移相器通过其相应的带通滤波器耦合到每个馈送端口。在低频带处，外部馈电端口被滤波器短路，使得位于中心馈电端口左侧的偶极子元件的两个部分形成一个单带偶极臂，并且偶极子元件的两个部分在中心的右侧进料口形成另一个低频带偶极臂。低频带偶极子在中心馈电端口被驱动。在高频带处，中心馈电端口成为开路，使得其左侧的两个部分形成一个高频带偶极子，并且其右侧的两个部分形成第二高频带偶极子。两个外部进给端口在高频段驱动偶极子阵列。在MMIC实施例中，印刷电路短截线跨越外部馈送端口桥接。每个短截线的长度是低频带的一个波长，高频带的一个波长。在低频时，短线看起来很短路。在高频段，短截线的端子为巴伦提供180度的相位差。

3. 发明授权

US5485167A Multi-frequency band phased-array antenna using multiple layered dipole arrays 失效
标题翻译：使用多层偶极子阵列的多频带相控阵天线
公开(公告)号：US5485167A
公开(公告)日：1996-01-16
申请号：US183205
申请日：1994-01-18
申请人： Nam S. Wong , Kuan M. Lee , Raymond Tang
发明人： Nam S. Wong , Kuan M. Lee , Raymond Tang
IPC分类号： H01Q5/00 , H01Q5/42 , H01Q21/06 , H01Q15/02 , H01Q5/02 , H01Q21/12
CPC分类号： H01Q21/062 , H01Q5/42
摘要： A multiple layer dipole array that provides for a multi-frequency band phased array antenna. Several layers of dipole pair arrays, each tuned to a different frequency band, are stacked relative to each other along the transmission/reception direction. The highest frequency array is in front of the next lowest frequency array and so forth. Due to the frequency selective property of the arrays, incident high frequency signals are completely absorbed by the highest frequency array. In regard to incident low frequency signals, the insertion loss due to higher frequency arrays is small resulting in good performance of the lower frequency arrays. The multi-frequency band phased array antenna may use active or driven dipole pairs, or parasitic elements that form the multiple layer dipoles. The multiple layer dipole array of the present invention may employ corporate feed circuit boards and a corporate feed power divider, using strip transmission line circuits, for example. The multiple layer dipole phased array of the present invention may also employ a feed-through lens arrangement to simplify the feed network.
摘要翻译：提供多频带相控阵天线的多层偶极阵列。每个调谐到不同频带的偶极对阵列的几层相对于发送/接收方向彼此堆叠。最高频率阵列位于下一个最低频率阵列的前面，等等。由于阵列的频率选择性，入射的高频信号被最高频率阵列完全吸收。关于入射低频信号，由于较高频率阵列引起的插入损耗较小，导致较低频率阵列的良好性能。多频带相控阵天线可以使用形成多层偶极子的有源或驱动偶极子对或寄生元件。本发明的多层偶极子阵列可以使用公司馈电电路板和公司馈电功率分配器，例如使用条形传输线电路。本发明的多层偶极相控阵列还可以采用馈通透镜装置来简化馈送网络。

4. 发明授权

US5652591A Wideband and wide angle sidelobe cancellation technique 失效
标题翻译：宽带和广角旁瓣消除技术
公开(公告)号：US5652591A
公开(公告)日：1997-07-29
申请号：US439730
申请日：1989-11-20
申请人： Sien-chang Charles Liu , Donald J. Gibson , Nam S. Wong , Raymond Tang , James S. Ajioka
发明人： Sien-chang Charles Liu , Donald J. Gibson , Nam S. Wong , Raymond Tang , James S. Ajioka
IPC分类号： G01S3/46 , G01S7/36 , H01Q3/26 , G01S3/16 , G01S3/28
CPC分类号： H01Q3/2629 , G01S7/36 , G01S3/46
摘要： A wideband, wide angle sidelobe cancellation array system is disclosed. The system includes a main array formed of a plurality of regularly spaced elements, and an auxiliary array formed of two auxiliary antenna elements spaced from the outermost elements of the main array a distance equal to one-half the spacing of the main array elements. The received signals from the main array elements are combined to form a main array signal. The contributions from the auxiliary array elements are combined to form an auxiliary array signal. The two array signals have a good amplitude and phase match over a wide frequency and angle range. The main array and auxiliary array signals are then combined to form a system array signal wherein the sidelobe energy in the main array signal has been substantially cancelled. The system can be made an adaptive one by the addition of adaptive RF phase and amplitude weighting to the auxiliary array signal prior to combining with the main array signal.
摘要翻译：公开了一种宽带广角旁瓣消除阵列系统。该系统包括由多个规则间隔的元件形成的主阵列和由与主阵列的最外面元件隔开的两个辅助天线元件形成的辅助阵列，其距离等于主阵列元件的间距的一半。来自主阵列元件的接收信号被组合以形成主阵列信号。辅助阵列元件的贡献被组合以形成辅助阵列信号。两个阵列信号在宽频率和角度范围内具有良好的幅度和相位匹配。然后将主阵列和辅助阵列信号组合以形成系统阵列信号，其中主阵列信号中的旁瓣能已被基本上消除。在与主阵列信号组合之前，通过添加自适应RF相位和幅度加权到辅助阵列信号，可以将系统制成自适应系统。

5. 发明授权

US5389939A Ultra wideband phased array antenna 失效
标题翻译：超宽带相控阵天线
公开(公告)号：US5389939A
公开(公告)日：1995-02-14
申请号：US40788
申请日：1993-03-31
申请人： Raymond Tang , Kuan M. Lee
发明人： Raymond Tang , Kuan M. Lee
IPC分类号： H01Q3/46 , H01Q5/00 , H01Q5/42 , H01Q19/06
CPC分类号： H01Q3/46 , H01Q5/42
摘要： An ultra wideband (UWB) phased array antenna using a frequency-multiplexing, space-fed lens with a UWB feed horn achieves multi-octave bandwidth. The lens includes two UWB radiating apertures with relatively narrow band phase shifters connecting corresponding radiating elements of the arrays. Each aperture multiplexes the incoming UWB signal into separate frequency bands so that the phase shifters need only be tuned to these narrower frequency bands, and are set to form a beam in the desired direction. For wide instantaneous bandwidth operation, the beams from the various frequency bands are collimated in the same direction. For multi-mode operation, the beams corresponding to the various frequency bands are formed in different directions. The phase shifters need have a maximum phase shift of 360 degrees.
摘要翻译：使用具有UWB馈电喇叭的频率复用，空间馈送镜头的超宽带（UWB）相控阵天线实现多倍频程带宽。该透镜包括两个UWB辐射孔，其相对窄带移相器连接阵列的相应辐射元件。每个孔径将输入的UWB信号复用到单独的频带中，使得移相器仅需要调谐到这些较窄的频带，并且被设置为在期望的方向上形成一个波束。对于宽瞬时带宽操作，来自各个频带的波束在相同方向上准直。对于多模式操作，对应于各种频带的波束形成在不同的方向。移相器需要360度的最大相移。

6. 发明授权

US5223838A Radar cross section enhancement using phase conjugated impulse signals 失效
标题翻译：雷达横截面增强使用相位共轭脉冲信号
公开(公告)号：US5223838A
公开(公告)日：1993-06-29
申请号：US864733
申请日：1992-04-07
申请人： Raymond Tang , Kuan M. Lee , Ruey-shi Chu , Gordon L. Howard
发明人： Raymond Tang , Kuan M. Lee , Ruey-shi Chu , Gordon L. Howard
IPC分类号： G01S7/28
CPC分类号： G01S7/28
摘要： An apparatus and a method for enhancing the radar cross section of a target. The present invention is an impulse radar system that implements a method that comprises the following steps. A pilot impulse radar pulse is transmitted at a target. The pilot pulse comprises a plurality of individual pulses having respective distinct frequencies generated by the impulse radar system. A return pulse from the target is received by the impulse radar system and provides information indicative of target scattering centers. The return pulse is used as a calibration signal for generating a phase conjugated pulse. The phase conjugated pulse is then transmitted at the target. Processing a target return signal derived from the transmitted phase conjugated pulse enhances the radar cross section of the target because the waveform of the transmitted phase conjugated pulse is matched to the characteristics of the target. The present invention is adapted to detect low radar cross section targets without encountering the problems and frequency restrictions with conventional radar systems. In a second embodiment of the present invention, when a progressive phase variation is applied to the transmit pulses, the radar cross section contributed by backward travelling wave is made to add in phase in the received direction by processing the received target return pulses while adaptively adjusting the phase sequence of the transmitted pulses. When the appropriate phase sequence is achieved which is such that the transmitted pulses match the scattering centers on the target, then an enhanced return signal is received.
摘要翻译：一种用于增强目标雷达横截面的装置和方法。本发明是一种实现包括以下步骤的方法的脉冲雷达系统。在目标位置传输一个导频脉冲雷达脉冲。导频脉冲包括具有由脉冲雷达系统产生的各自不同频率的多个独立脉冲。来自目标的返回脉冲由脉冲雷达系统接收并提供指示目标散射中心的信息。返回脉冲用作生成相位共轭脉冲的校准信号。相位共轭脉冲随后在目标传输。由于传输相位共轭脉冲的波形与目标的特性相匹配，处理从传输相位共轭脉冲得到的目标返回信号增强了目标的雷达横截面。本发明适用于检测低雷达截面目标，而不会遇到常规雷达系统的问题和频率限制。在本发明的第二实施例中，当对发射脉冲施加逐行相位变化时，通过在自适应调整的同时处理接收到的目标返回脉冲，使由反向行波贡献的雷达横截面在接收方向上相位相加发射脉冲的相序。当实现适当的相序使发射的脉冲与目标上的散射中心匹配时，接收增强的返回信号。

7. 发明授权

US5264859A Electronically scanned antenna for collision avoidance radar 失效
标题翻译：电子扫描天线，用于防撞雷达
公开(公告)号：US5264859A
公开(公告)日：1993-11-23
申请号：US788080
申请日：1991-11-05
申请人： Jar J. Lee , James V. Strahan , Raymond Tang
发明人： Jar J. Lee , James V. Strahan , Raymond Tang
IPC分类号： H01Q1/32 , H01Q3/44 , H01Q19/06
CPC分类号： H01Q19/06 , H01Q1/3233 , H01Q3/44
摘要： A millimeter wave antenna capable of electronic scanning for automobile collision avoidance radar. The antenna includes a linear ferrite loaded slot array which illuminates a dielectric lens. The antenna system has no moving parts. Beam scanning is achieved by controlling the bias magnetic field along the ferrite rod of the slot array.
摘要翻译：一种能够进行汽车防撞雷达电子扫描的毫米波天线。天线包括照亮介电透镜的线性铁氧体加载槽阵列。天线系统没有移动部件。通过控制沿着槽阵列的铁氧体棒的偏置磁场来实现光束扫描。

8. 发明申请

US20050198855A1 Variable ion hair styling appliances 审中-公开
公开(公告)号：US20050198855A1
公开(公告)日：2005-09-15
申请号：US11075387
申请日：2005-03-08
申请人： Michael Cafaro , Gary Koenemann , Raymond Tang
发明人： Michael Cafaro , Gary Koenemann , Raymond Tang
IPC分类号： A45D1/04 , A45D2/36 , A45D4/18 , A45D7/02 , F26B3/34 , F26B19/00
CPC分类号： A45D20/10 , A45D20/30 , A45D2200/202
摘要： A hair drying/styling appliance includes an ion emitting circuit which directs ion onto the hair of a user, and in which the level of ion output is variable and adjustable by a user. In preferred embodiments indicators such as a series of lights on the housing indicate the level of ion output.

9. 发明授权

US5027125A Semi-active phased array antenna 失效
标题翻译：半有源相控阵天线
公开(公告)号：US5027125A
公开(公告)日：1991-06-25
申请号：US394467
申请日：1989-08-16
申请人： Raymond Tang
发明人： Raymond Tang
IPC分类号： H01Q3/24 , H01Q3/34
CPC分类号： H01Q3/24 , H01Q3/34
摘要： A module disposed at each radiating element of a phased array antenna, the module having a limiter, a low-noise amplifier and a phase shifter. One embodiment includes a DPDT switch to permit use of a common phase shifter on transmit and receive. On transmit, the DPDT switch is thrown in a position that connects the phase shifter directly to the radiating element. On receive, the DPDT switch is thrown in a position that connects the radiating element through the limiter and low noise amplifier and then to the phase shifter. Another embodiment uses a four-port circulator in place of the DPDT switch, and uses separate phase shifters for transmit and receive. A semi-active module for a constrained feed array uses both a DPDT switch and a circulator and uses a common transmit/receive phase shifter. A semi-active module for a space-fed array uses two DPDT switches, a single phase-shifter and limiter/low-noise amplifier and two antenna elements; one of receive, and one for retransmit. Another module employs a four-port circulator, separate transmit and receive phase shifters, and separate transmit and receive beamforming networks. In a monopulse radar transmitter, a module using a four-port circulator and a separate receive diode phase shifter, limiter and low-noise amplifier is used with a receive monopulse feed, transmit ferrite phase shifters and a transmit series feed.
摘要翻译：设置在相控阵天线的每个辐射元件处的模块，该模块具有限幅器，低噪声放大器和移相器。一个实施例包括DPDT开关，以允许在发送和接收时使用公共移相器。在发送时，DPDT开关被投入到将移相器直接连接到辐射元件的位置。在接收时，DPDT开关被投入到将辐射元件通过限制器和低噪声放大器连接到移相器的位置。另一个实施例使用四端口循环器代替DPDT开关，并且使用单独的移相器进行发送和接收。用于约束馈电阵列的半有源模块使用DPDT开关和循环器，并使用公共的发射/接收移相器。用于空间馈电阵列的半有源模块使用两个DPDT开关，一个单相移器和限幅/低噪声放大器和两个天线元件; 一个接收，一个用于重传。另一个模块采用四端口循环器，单独的发射和接收移相器，以及单独的发射和接收波束成形网络。在单脉冲雷达发射机中，使用四端口环行器和单独的接收二极管移相器，限幅器和低噪声放大器的模块用于接收单脉冲馈电，发射铁氧体移相器和发射串联馈电。

10. 发明授权

US5233356A Low sidelobe solid state array antenna apparatus and process for configuring an array antenna aperture 失效
标题翻译：低旁瓣固态阵列天线装置和用于配置阵列天线孔径的过程
公开(公告)号：US5233356A
公开(公告)日：1993-08-03
申请号：US321651
申请日：1989-02-23
申请人： Jar J. Lee , Raymond Tang
发明人： Jar J. Lee , Raymond Tang
IPC分类号： H01Q21/00 , H01Q21/22
CPC分类号： H01Q21/22 , H01Q21/0025
摘要： A low sidelobe, solid state array antenna apparatus comprises a large radiating aperture divided into a large number, N, of small, closely spaced radiating apertures, each small radiating aperture having associated therewith a radiating element and a linearly polarized solid state power module. The large radiating aperture is divided into M, preferably between 3 and about 10, differently sized, elliptically shaped, concentric radiating zones superimposed, for analysis purposes, upon another. Each such zone has an output voltage amplitude, E.sub.i, and semi-major and semi-minor axes of respective lengths, a.sub.i and b.sub.i, each zone being considered separately in the far field equation: ##EQU1## J.sub.1 .sup.(u i.sup.) is the first order Bessel function, a.sub..theta. and a.sub..phi. are unit vectors in the spherical coordinates and K.sub.o is the wave number associated with the radiated field. Using the far field equation, values of E.sub.i, a.sub.i and b.sub.i for each zone are computed which result in the far field sidelobe peak gain being a minimum or being a specified number of dB, for example, at least about 30 dB, below the far field mainlobe gain. The values of E.sub.i in overlapping zones are summed to establish the required voltage amplitudes of the underlying power modules associated with the N radiation apertures.
摘要翻译：低旁瓣固体阵列天线装置包括被分成大量N个小的紧密间隔的辐射孔的大辐射孔，每个小辐射孔具有辐射元件和线偏振固态功率模块。大的辐射孔被分成M，优选地在3和大约10之间，为了分析目的而叠加在另一个上的不同尺寸的椭圆形同心辐射区。每个这样的区域具有相应长度的输出电压幅度Ei和半主轴和半短轴ai和bi，每个区域在远场方程中分别考虑：G（θ，phi）= [f ，phi）（θcos phi - phi sin phicosθ）] 2， J1（ui）是第一阶贝塞尔函数，Θ和âi是球坐标中的单位向量，Ko 是与辐射场相关联的波数。使用远场方程，计算每个区域的Ei，ai和bi的值，其导致远场旁瓣峰值增益为最小值或者是指定数量的dB，例如至少约30dB，远低于远场野外主瓣增益。将重叠区域中的Ei的值相加以建立与N个辐射孔径相关联的底层功率模块的所需电压幅度。

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