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公开(公告)号：US4871232A
公开(公告)日：1989-10-03
申请号：US130032
申请日：1987-12-07
IPC分类号： G01R23/17
CPC分类号： G01R23/17
摘要： A high frequency spectral analysis system and method operates by modulating an optical beam with a high frequency signal to be analyzed, and sampling the beam simultaneously at periodically spaced locations along its length. The sampled portions are then focused to a spectral mapping. In the preferred embodiment a beam is directed in a zigzag pattern through a plate, one surface of which is totally reflective and the opposite surface of which is partially reflective. Periodic parallel samples are obtained from the minor portions of the beam which are transmitted out of the plate through the partially reflective surface. The totally reflective surface is preferably formed as a series of cylindrical surfaces which focus the beam to small spots at the partially reflective surface, thereby permitting a higher spatial density of samples without overlapping. The plate thickness is selected so that the beam is sampled at the Nyquist rate for the highest frequency contained in the signal of interest.
摘要翻译： 高频谱分析系统和方法通过用待分析的高频信号调制光束并且沿其长度在周期性间隔的位置同时采样光束来操作。 然后将采样的部分聚焦到光谱映射。 在优选实施例中，光束以锯齿形图案通过板，其一个表面是完全反射的，其相对表面是部分反射的。 从束的少部分获得周期性的平行样品，其通过部分反射表面从板上传出。 全反射表面优选地形成为将光束聚焦在部分反射表面处的小斑点的一系列圆柱形表面，从而允许更高的样品空间密度而不重叠。 选择板厚度使得以包含在感兴趣信号中的最高频率的奈奎斯特速率采样波束。
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2.发明授权Programmable fiber optic delay line, and radar target simulation system incorporating the same 失效可编程光纤延迟线和雷达目标仿真系统相结合
公开(公告)号：US5177488A
公开(公告)日：1993-01-05
申请号：US773187
申请日：1991-10-08
申请人： Harry T. Wang , Irwin L. Newberg , Adrian E. Popa , Robert R. Hayes , John K. Keigharn , Bill H. Otoide
发明人： Harry T. Wang , Irwin L. Newberg , Adrian E. Popa , Robert R. Hayes , John K. Keigharn , Bill H. Otoide
CPC分类号： G01S7/4052 , G01S2007/4095
摘要： A programmable fiber optic delay system employs multiple programmable fiber optic delay lines, and switches among the delay lines for inclusion in an overall delay path. Switching among the delay lines is coordinated with the programming of those lines so that only a delay line with a settled delay program is included in the overall delay path. Each delay line consists of a plurality of fiber optic segments of varying length. The line's delay is programmed by switching in particular segments whose aggregate lengths correspond to a desired delay period. The multiple delay lines are used to simulate target speed and distance for use in testing a radar system. The programming of each individual delay line and the switching between lines is preferably controlled by a computer resident in the target simulator.
摘要翻译： 可编程光纤延迟系统采用多个可编程光纤延迟线，并在延迟线之间切换以包含在整个延迟路径中。 延迟线之间的切换与这些线的编程协调，使得只有具有稳定延迟程序的延迟线被包括在整个延迟路径中。 每个延迟线由多个长度不同的光纤段组成。 通过切换其长度对应于所需延迟周期的特定段来编程线路的延迟。 多个延迟线用于模拟用于测试雷达系统的目标速度和距离。 每个单独的延迟线的编程和线之间的切换优选地由驻留在目标模拟器中的计算机控制。
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公开(公告)号：US4293833A
公开(公告)日：1981-10-06
申请号：US90233
申请日：1979-11-01
申请人： Adrian E. Popa
发明人： Adrian E. Popa
IPC分类号： H01P3/16
CPC分类号： H01P3/16
摘要： Millimeter wave transmission lines are disclosed for propagating electromagnetic waves of a wavelength ranging from about 10 mm to about 0.4 mm. The transmission lines comprise a fiber of co-crystallized thallium bromo-iodide consisting of from about 40 mole percent to about 46 mole percent thallium bromide and from about 60 mole percent to about 54 mole percent thallium iodide. The fiber may be cladded with a dielectric material having a dielectric constant less than that of the fiber. A number of alternate fiber and cladding cross-sectional configurations are disclosed including circular, square, rectangular, and elliptical.
摘要翻译： 公开了用于传播约10mm至约0.4mm波长的电磁波的毫米波传输线。 传输线包括由约40摩尔％至约46摩尔％的溴化铊和约60摩尔％至约54摩尔％的碘化铊组成的共结晶的溴化铊的纤维。 纤维可以用介电常数小于纤维的电介质材料包覆。 公开了一些替代的纤维和包层横截面构造，包括圆形，正方形，矩形和椭圆形。
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公开(公告)号：US5005932A
公开(公告)日：1991-04-09
申请号：US432933
申请日：1989-11-06
CPC分类号： G02F1/2255 , G02F1/3134
摘要： An electro-optic modulator (10) includes a pair of optical waveguide channels (20, 22) formed in an X-cut lithium niobate substrate (12) and an overlying RF coplanar waveguide (36). A periodic electrode structure (48) of the intermittent interaction type employs a plurality of middle stubs (52) to maintain the phase of the RF drive frequency in phase with the optical signal. The modulator (10) also utilizes shorter stubs (64) and tapered inlets (42) and outlets (44) to match and transform impedances.
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公开(公告)号：US4903029A
公开(公告)日：1990-02-20
申请号：US169930
申请日：1988-03-18
申请人： Irwin L. Newberg , Adrian E. Popa
发明人： Irwin L. Newberg , Adrian E. Popa
IPC分类号： G01S7/40 , G01S20060101
CPC分类号： G01S7/4052 , G01S2007/4095
摘要： A radar test set target which is co-located with the radar and produces a faithful replica of the radar signal substantially delayed in time. The radar signal modulates a laser light which is controllable delayed in time by transmitting the modulated laser light through a fiber optic delay line. The output of the delay line is demodulated and the extracted and delayed radar signal is returned to the radar as a test signal.
摘要翻译： 一个雷达测试集目标，与雷达并置，并产生一个基本上延迟的雷达信号的忠实复制品。 雷达信号通过将调制的激光传输通过光纤延迟线来调制可延迟控制的激光。 延迟线的输出被解调，提取和延迟的雷达信号作为测试信号返回到雷达。
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公开(公告)号：US4814773A
公开(公告)日：1989-03-21
申请号：US493453
申请日：1983-05-11
申请人： Michael Wechsberg , Adrian E. Popa
发明人： Michael Wechsberg , Adrian E. Popa
CPC分类号： H01Q3/2676 , G01S7/03
摘要： In a radar having electrical transmitting and receiving circuitry, and an antenna for the radiation of microwave signals, there is provided an optical feed system which couples the antenna with the transmitting and receiving circuitry. The feed system includes a set of optical multiplexers interconnected by sets of optical fibers. Microwave energy of the radar is converted to optical radiation for communication to the antenna, and then converted back to the microwave energy. Electro-optic modulators and photoelectric detectors provide for the energy conversion. A plurality of signals, including both signals having the transmit waveform as well as control signals, can be simultaneously coupled via the optical fibers by utilization of radiation of differing frequencies. The multiplexers include dichroic mirrors for separation of the radiations of the differing frequencies. The fiber optic feed system retains the full beam steering capacity of the radar and permits the use of conventional electronic circuitry with the feed network of the optical feed system.
摘要翻译： 在具有电气发射和接收电路的雷达和用于辐射微波信号的天线中，提供了将天线与发射和接收电路耦合的光馈电系统。 馈送系统包括通过一组光纤互连的一组光复用器。 将雷达的微波能量转换成用于与天线通信的光辐射，然后转换回微波能量。 电光调制器和光电探测器提供能量转换。 包括具有发射波形的信号和控制信号的多个信号可以通过利用不同频率的辐射经由光纤同时耦合。 多路复用器包括用于分离不同频率的辐射的分色镜。 光纤馈送系统保留雷达的全波束转向能力，并允许使用常规电子电路与光馈电系统的馈电网络。
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公开(公告)号：US4453802A
公开(公告)日：1984-06-12
申请号：US315357
申请日：1981-10-26
申请人： William B. Bridges , Adrian E. Popa
发明人： William B. Bridges , Adrian E. Popa
IPC分类号： H01P5/00 , G02B6/36 , H01L31/02 , H01P1/00 , H01P5/08 , H03D9/00 , H03D9/06 , H04B10/12 , H04B10/13 , H04B10/135 , H04B10/14 , G02B5/172
摘要： A dielectric waveguide is disposed adjacent to a diode array which allows for coupling of energy therebetween. The waveguide has a core section and a cladding section encompassing a core section except in a portion thereof. The diode array is disposed adjacent to the exposed core portion at a proximity which allows evanescent coupling of energy between energy traversing the waveguide and the diodes of the diode array. A variety of microwave devices may be provided by this arrangement which include a signal source, detector, harmonic generator, upconverter, down-converter, or power combiner, depending upon the types of signals and manner of application of the signals applied to the waveguide and to the diode array.
摘要翻译： 电介质波导设置成与二极管阵列相邻，其允许它们之间的能量耦合。 波导具有芯部分和包围部分的包层部分，除了部分之外。 二极管阵列靠近暴露的芯部分设置在邻近处，允许穿过波导的能量和二极管阵列的二极管之间的能量的消逝耦合。 根据施加到波导的信号的类型和施加方式，可以通过这种布置提供各种微波装置，其包括信号源，检测器，谐波发生器，上变频器，下变频器或功率组合器，以及 到二极管阵列。
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公开(公告)号：US06501433B2
公开(公告)日：2002-12-31
申请号：US09879865
申请日：2001-06-12
申请人： Adrian E. Popa , William B. Bridges
发明人： Adrian E. Popa , William B. Bridges
IPC分类号： H01Q1300
摘要： An antenna. The antenna includes a first dielectric antenna rod having a first dielectric constant. The first dielectric antenna rod is coupled to a first frequency transmission source for propagating first frequency band radiation from the first dielectric antenna rod into a medium having a medium dielectric constant. A second dielectric antenna rod is provided having a second dielectric constant. The second dielectric antenna rod is coupled to a second frequency transmission source for propagating second frequency band radiation from the second dielectric antenna rod into the medium. The first dielectric antenna rod is coaxially mounted within the second dielectric antenna rod. The first dielectric constant is greater than the second dielectric constant. The second dielectric constant is greater than the medium dielectric constant.
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公开(公告)号：US06266025B1
公开(公告)日：2001-07-24
申请号：US09482166
申请日：2000-01-12
申请人： Adrian E. Popa , William B. Bridges
发明人： Adrian E. Popa , William B. Bridges
IPC分类号： H01Q1300
摘要： An antenna. The antenna includes a first dielectric antenna rod having a first dielectric constant. The first dielectric antenna rod is coupled to a first frequency transmission source for propagating first frequency band radiation from the first dielectric antenna rod into a medium having a medium dielectric constant. A second dielectric antenna rod is provided having a second dielectric constant. The second dielectric antenna rod is coupled to a second frequency transmission source for propagating second frequency band radiation from the second dielectric antenna rod into the medium. The first dielectric antenna rod is coaxially mounted within the second dielectric antenna rod. The first dielectric constant is greater than the second dielectric constant. The second dielectric constant is greater than the medium dielectric constant.
摘要翻译： 天线。 天线包括具有第一介电常数的第一介电天线杆。 第一介电天线杆耦合到第一频率传输源，用于将第一频带辐射从第一介电天线杆传播到具有介质介电常数的介质中。 提供具有第二介电常数的第二介质天线杆。 第二介电天线杆耦合到第二频率传输源，用于将第二频带辐射从第二介电天线杆传播到介质中。 第一电介质天线杆同轴地安装在第二电介质天线杆内。 第一介电常数大于第二介电常数。 第二介电常数大于介质介电常数。
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