专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5172082A Multi-octave bandwidth balun 失效
标题翻译：多倍频程带宽平衡 - 不平衡变换器
公开(公告)号：US5172082A
公开(公告)日：1992-12-15
申请号：US687809
申请日：1991-04-19
申请人： Stan W. Livingston , Jar J. Lee , Nam S. Wong
发明人： Stan W. Livingston , Jar J. Lee , Nam S. Wong
IPC分类号： H01P5/10
CPC分类号： H01P5/10
摘要： A balun structure including a dielectric substrate having top and bottom surfaces on which are formed a splitter/combiner, a reference transmission line of length A and substantially constant characteristic impedance, and an inverting transmission line of length A and substantially constant characteristic impedance. The inverting transmission line in particular includes a first tapered planar section disposed on the top surface of the substrate and transitioning along its length from a narrow width to a wide width, and a second tapered planar section disposed on the bottom surface of the substrate and transitioning along its length from a wide width to a narrow width, such that the first and second tapered planar sections are rotated mirror images of each other.
摘要翻译：一种平衡 - 不平衡转换器结构，包括具有顶表面和底表面的电介质基底，其上形成有分离器/组合器，长度为A的基准传输线和基本上恒定的特性阻抗，以及长度为A和基本上恒定的特性阻抗的反相传输线。反转传输线特别地包括设置在基板的顶表面上的第一锥形平面部分，并且沿着其长度从窄宽度变宽到宽宽度，以及设置在基板的底表面上的第二锥形平面部分沿其长度从宽宽度到窄宽度，使得第一和第二锥形平面部分彼此旋转镜像。

2. 发明授权

US5070339A Tapered-element array antenna with plural octave bandwidth 失效
标题翻译：具有多个八度带宽的锥形元件阵列天线
公开(公告)号：US5070339A
公开(公告)日：1991-12-03
申请号：US456018
申请日：1989-12-21
申请人： Ruey S. Chu , Nam S. Wong , Ernie T. Ozaki
发明人： Ruey S. Chu , Nam S. Wong , Ernie T. Ozaki
IPC分类号： H01Q13/08 , H01Q17/00 , H01Q21/06
CPC分类号： H01Q13/085 , H01Q17/001 , H01Q21/061
摘要： An antenna for radiating electromagnetic power with plural octave bandwith is formed of an array of microstrip radiating elements each of which includes a microstrip conductor element spaced apart from a ground-plane element. A common ground-plane element is employed by all of the radiators in a row of the antenna, there being a plurality of the rows disposed parallel to each other. In each radiator, the microstrip conductor element is formed of an input section which is coupled to a feed, and an output section extending to an output end of the radiator for forming a radiating aperture of the radiator. In each output section, there is a two-dimensional enlargement of a cross-section of the radiator, one dimension of enlargement being parallel to the ground-plane element, and the other direction of enlargement being perpendicular to the ground-plane element. Enlargement in the direction parallel to the ground-plane element is accomplished by increasing the width of the conductor element. Enlargement in the direction perpendicular to the ground-plane element is accomplished by bending a portion of the conductor element away from the ground-plane element to provide for an inclination of the conductor element relative to the ground-plane element. Enlargement of the width may occur prior to or concurrently with enlargement of the dimension perpendicular to the ground-plane element.
摘要翻译：用于辐射具有多个八度带宽的电磁功率的天线由微带辐射元件阵列形成，每个微带辐射元件包括与接地平面元件间隔开的微带导体元件。天线的一排中的所有辐射器采用公共接地面元件，存在彼此平行设置的多个行。在每个散热器中，微带导体元件由耦合到馈电的输入部分和延伸到散热器的输出端的输出部分形成，以形成散热器的辐射孔。在每个输出部分中，存在散热器的横截面的二维放大，放大的一个尺寸平行于接地平面元件，另一个放大方向垂直于接地平面元件。通过增加导体元件的宽度来实现平行于接地平面元件的方向的扩大。通过将导体元件的一部分远离接地平面元件弯曲以提供导体元件相对于接地平面元件的倾斜度来实现垂直于接地平面元件的方向的放大。宽度的扩大可以在垂直于接地平面元件的尺寸的放大之前或同时发生。

3. 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。

4. 发明授权

US4689627A Dual band phased antenna array using wideband element with diplexer 失效
标题翻译：双频相控天线阵列，采用带双工器的宽带单元
公开(公告)号：US4689627A
公开(公告)日：1987-08-25
申请号：US496751
申请日：1983-05-20
申请人： Kuan M. Lee , Nam S. Wong , Ruey S. Chu , Ray Tang
发明人： Kuan M. Lee , Nam S. Wong , Ruey S. Chu , Ray Tang
IPC分类号： H01P1/213 , G01S7/02 , H01P5/02 , H01P5/103 , H01Q3/34 , H01Q5/00 , H01Q21/00 , H01Q21/06 , H01Q3/22 , H01Q3/24 , H01Q3/26
CPC分类号： H01Q3/30 , H01P5/103 , H01Q13/06 , H01Q21/30 , H01Q5/00
摘要： A dual band, phased array antenna especially adaptable for tactical radar capable of performing search, track and identification in a hostile jamming environment. The dual band array antenna is essentially two antennas sharing a common antenna aperture. The two antennas possess separate feed system and beam steering control. Thus, the beams for each frequency band can be steered independently and simultaneously. This design utilizes an ultra-wide band radiating element which can operate over approximately an octave bandwidth encompassing two adjacent microwave bands. In particular, the dual band signals can be received efficiently by the radiating element. A dual band coaxial-to-waveguide transition can be used to carry the signals to a diplexer. The dual band signals are separated at the diplexer and can be processed in separate feed networks. The advantages of this dual band phased array technique include not only good impedance characteristics but also the absence of grating lobe formation and cross coupling problems.
摘要翻译：一种双频带相控阵天线，特别适用于能够在敌对干扰环境中进行搜索，跟踪和识别的战术雷达。双频带阵列天线基本上是共享共同天线孔径的两个天线。两个天线具有独立的进料系统和波束转向控制。因此，可以独立地并且同时地控制每个频带的波束。该设计利用了超宽带辐射元件，其可以在包含两个相邻微波频带的大约八度带宽上工作。特别地，可以通过辐射元件有效地接收双频带信号。双波段同轴 - 波导转换可用于将信号传送到双工器。双频信号在双工器处分离，可以在单独的馈电网络中进行处理。这种双频相控阵技术的优点不仅包括良好的阻抗特性，还包括不存在光栅波瓣形成和交叉耦合问题。

5. 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。

6. 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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式