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1.发明申请公开(公告)号：US20070063791A1
公开(公告)日：2007-03-22
申请号：US11601885
申请日：2006-11-20
申请人： You-Sun Wu , Mark Smith , James Remer
发明人： You-Sun Wu , Mark Smith , James Remer
IPC分类号： H01P5/12
摘要： A radial power divider-combiner is disclosed. Such a radial divider-combiner may include a plurality of waveguides, each of which extends between a central monopole antenna and a respective peripheral monopole antenna. Such a waveguide may have a central portion with a height-to-width ratio of two, and a peripheral portion having an aspect ratio of one. To improve impedance-matching, a transformer portion may be disposed between the central portion and the peripheral portion. Such a transformer portion may have any number of sections, from one to infinity, with each section having a respective height between that of the central portion and that of the peripheral portion. In the extreme case, where the number of “sections” is infinite, the height of the transformer portion may vary linearly from that of the central portion and that of the peripheral portion.
摘要翻译： 公开了径向功率分配器组合器。 这种径向分频器组合器可以包括多个波导，每个波导在中央单极天线和相应的外围单极天线之间延伸。 这种波导可以具有高度 - 宽度比为2的中心部分和纵横比为1的周边部分。 为了改善阻抗匹配，可以在中心部分和周边部分之间设置变压器部分。 这种变压器部分可以具有从一个到无穷远的任何数量的部分，每个部分在中心部分和周边部分的高度之间具有相应的高度。 在极端情况下，“部分”的数量是无穷大的，变压器部分的高度可以与中心部分和周边部分的高度线性变化。
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公开(公告)号：US5784686A
公开(公告)日：1998-07-21
申请号：US775695
申请日：1996-12-31
申请人： You-Sun Wu , R. Anthony Shober
发明人： You-Sun Wu , R. Anthony Shober
CPC分类号： H03D1/2245 , H03D3/007
摘要： In accordance with the present invention, an RFID system has a homodyne receiver having two outputs; the in-phase or I output and the quadrature or Q output. The modulated backscattered signal is composed of an information signal, modulated onto a single frequency subcarrier signal, generating a modulated subcarrier signal; this modulated subcarrier signal is then backscatter modulated onto the incoming RF signal. To demodulate this modulated backscattered signal, the I and Q outputs are combined using an IQ combiner. This IQ combiner introduces a 90.degree. phase shift, with respect to the frequency of the subcarrier signal, onto one of the demodulator outputs and then combines the outputs of the demodulator.
摘要翻译： 根据本发明，RFID系统具有具有两个输出的零差接收机; 同相或I输出和正交或Q输出。 调制后向散射信号由调制到单频子载波信号上的信号信号组成，产生调制副载波信号; 然后将该调制的子载波信号反向散射调制到输入的RF信号上。 为了解调该调制后向散射信号，使用IQ组合器组合I和Q输出。 该IQ组合器相对于副载波信号的频率将90°相移引入解调器输出之一，然后组合解调器的输出。
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3.发明授权公开(公告)号：US07482894B2
公开(公告)日：2009-01-27
申请号：US11601885
申请日：2006-11-20
摘要： A radial power divider-combiner is disclosed. Such a radial divider-combiner may include a plurality of waveguides, each of which extends between a central monopole antenna and a respective peripheral monopole antenna. Such a waveguide may have a central portion with a height-to-width ratio of two, and a peripheral portion having an aspect ratio of one. To improve impedance-matching, a transformer portion may be disposed between the central portion and the peripheral portion. Such a transformer portion may have any number of sections, from one to infinity, with each section having a respective height between that of the central portion and that of the peripheral portion. In the extreme case, where the number of “sections” is infinite, the height of the transformer portion may vary linearly from that of the central portion and that of the peripheral portion.
摘要翻译： 公开了径向功率分配器组合器。 这种径向分频器组合器可以包括多个波导，每个波导在中央单极天线和相应的外围单极天线之间延伸。 这种波导可以具有高度 - 宽度比为2的中心部分和纵横比为1的周边部分。 为了改善阻抗匹配，可以在中心部分和周边部分之间设置变压器部分。 这种变压器部分可以具有从一个到无穷远的任何数量的部分，每个部分在中心部分和周边部分的高度之间具有相应的高度。 在极端情况下，“部分”的数量是无穷大的，变压器部分的高度可以与中心部分和周边部分的高度线性变化。
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公开(公告)号：US06982613B2
公开(公告)日：2006-01-03
申请号：US10773947
申请日：2004-02-06
CPC分类号： H01P5/12
摘要： A radial power divider-combiner is disclosed. The divider-combiner includes a divider and a combiner. An input signal is provided to a transmission antenna that radiates the input signal inside the divider. Within the divider, the input signal is divided into a plurality of individual signals. The individual signals are received by receiving antennas and provided to respective amplifiers. The amplifiers amplify the respective individual signals by a desired amplification factor. The amplified individual signals are provided to a plurality of transmitting antennas within the combiner. Inside the combiner, the amplified individual signals are combined to form an output signal that is received by a receiving antenna in the combiner.
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公开(公告)号：US20050174194A1
公开(公告)日：2005-08-11
申请号：US10773947
申请日：2004-02-06
申请人： You-Sun Wu , Mark Smith , James Remer
发明人： You-Sun Wu , Mark Smith , James Remer
CPC分类号： H01P5/12
摘要： A radial power divider-combiner is disclosed. The divider-combiner includes a divider and a combiner. An input signal is provided to a transmission antenna that radiates the input signal inside the divider. Within the divider, the input signal is divided into a plurality of individual signals. The individual signals are received by receiving antennas and provided to respective amplifiers. The amplifiers amplify the respective individual signals by a desired amplification factor. The amplified individual signals are provided to a plurality of transmitting antennas within the combiner. Inside the combiner, the amplified individual signals are combined to form an output signal that is received by a receiving antenna in the combiner.
摘要翻译： 公开了径向功率分配器组合器。 分频器组合器包括分频器和组合器。 输入信号被提供给发射天线，辐射分压器内部的输入信号。 在分频器内，输入信号被分成多个单独的信号。 各个信号由接收天线接收并提供给相应的放大器。 放大器通过期望的放大因子来放大各个信号。 放大的单独信号被提供给组合器内的多个发射天线。 在组合器内，放大的各个信号被组合以形成由组合器中的接收天线接收的输出信号。
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公开(公告)号：US06184841B2
公开(公告)日：2001-02-06
申请号：US08775217
申请日：1996-12-31
申请人： R. Anthony Shober , Eric Sweetman , You-Sun Wu
发明人： R. Anthony Shober , Eric Sweetman , You-Sun Wu
IPC分类号： H01Q2100
CPC分类号： H01Q1/2225 , H01Q1/22 , H01Q9/18 , H01Q21/08
摘要： In accordance with the present invention, a general antenna system is disclosed suitable for applications in which an RFID Tag passes by an Interrogator. We then disclose a specific antenna design that uses a single planar antenna for transmit and a multi-element planar antenna array for receive. The multi-element planar antenna array is spaced such that each of the planar elements is four inches apart, center-to-center, thus defining a narrow 30° receive beamwidth in the horizontal plane. The vertical receive bandwidth is much greater than 30°, facilitating the Interrogator receiving signals at a variety of elevations. Furthermore, a multi-way microstrip combiner is used to sum the signals received from each of the planar antennas. To block interference from the transmit antenna and to improve receive sensitivity, this multi-way microstrip combiner is shielded using, in one embodiment, copper tape along its edges. In a specific embodiment, a four element receive antenna design is disclosed.
摘要翻译： 根据本发明，公开了适用于RFID标签通过询问器的应用的通用天线系统。 然后，我们公开了使用单个平面天线进行发射的特定天线设计和用于接收的多单元平面天线阵列。 多单元平面天线阵列间隔开，使得每个平面元件相隔四英寸，中心到中心，因此在水平面中限定了窄的30°接收波束宽度。 垂直接收带宽远大于30°，便于询问器在各种高程处接收信号。 此外，使用多路微带组合器对从每个平面天线接收的信号进行求和。 为了阻止来自发射天线的干扰并提高接收灵敏度，在一个实施例中，该多路微带组合器沿其边缘被屏蔽。 在具体实施例中，公开了四元件接收天线设计。
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公开(公告)号：US20060284701A1
公开(公告)日：2006-12-21
申请号：US11509160
申请日：2006-08-24
申请人： You-Sun Wu , Mark Smith , James Remer
发明人： You-Sun Wu , Mark Smith , James Remer
IPC分类号： H01P5/12
CPC分类号： H01P5/12
摘要： A radial power divider-combiner is disclosed. The divider-combiner includes a divider and a combiner. An input signal is provided to a transmission antenna that radiates the input signal inside the divider. Within the divider, the input signal is divided into a plurality of individual signals. The individual signals are received by receiving antennas and provided to respective amplifiers. The amplifiers amplify the respective individual signals by a desired amplification factor. The amplified individual signals are provided to a plurality of transmitting antennas within the combiner. Inside the combiner, the amplified individual signals are combined to form an output signal that is received by a receiving antenna in the combiner.
摘要翻译： 公开了径向功率分配器组合器。 分频器组合器包括分频器和组合器。 输入信号被提供给发射天线，辐射分压器内部的输入信号。 在分频器内，输入信号被分成多个单独的信号。 各个信号由接收天线接收并提供给相应的放大器。 放大器通过期望的放大因子来放大各个信号。 放大的单独信号被提供给组合器内的多个发射天线。 在组合器内，放大的各个信号被组合以形成由组合器中的接收天线接收的输出信号。
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公开(公告)号：US4940954A
公开(公告)日：1990-07-10
申请号：US180497
申请日：1988-04-12
申请人： Donald E. Aubert , You-Sun Wu , Vishnu W. Nerurkar
发明人： Donald E. Aubert , You-Sun Wu , Vishnu W. Nerurkar
IPC分类号： H04L27/20
CPC分类号： H04L27/2032
摘要： An unbalanced quadrature phase-shift keyed UQPSK modulator modulates two information signals onto mutually quadrature components of a carrier. If the carrier components differ from an exact quadrature relationship by an error angle, crosstalk orr distortion is introduced. The effects of such an error are ameliorated by a limiter following the modulator.
摘要翻译： 不平衡正交相移键控UQPSK调制器将两个信息信号调制到载波的相互正交分量上。 如果载波分量与精确的正交关系与误差角不同，则会引入串扰或失真。 这种误差的影响通过调制器后的限幅器来改善。
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公开(公告)号：US3935548A
公开(公告)日：1976-01-27
申请号：US476234
申请日：1974-06-04
申请人： Fred J. Rosenbaum , You-Sun Wu
发明人： Fred J. Rosenbaum , You-Sun Wu
CPC分类号： H01P1/387
摘要： A planar Y-junction microwave circulator formed by depositing on a ferrite substrate a metallization pattern consisting of a central resonant disc and three transmission line ports radially extending from the periphery of the disc at junctions spaced apart by 120.degree.. The transmission characteristics of the circulator are controlled by a DC magnetic field which biases the ferrite. Wide-band operation on the order of one octave is achieved by using larger port coupling angles and a smaller disc radius than are conventionally used.
摘要翻译： 通过在铁氧体衬底上沉积金属化图案形成的平面Y结微波循环器，金属化图案由中心谐振盘和从间隔120度的接合处从盘周向径向延伸的三个传输线端口构成。 循环器的传输特性由偏磁铁氧体的直流磁场控制。 通过使用比常规使用的更大的端口耦合角度和更小的盘半径来实现一个八度音阶的宽带操作。
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公开(公告)号：US07312673B2
公开(公告)日：2007-12-25
申请号：US11509160
申请日：2006-08-24
CPC分类号： H01P5/12
摘要： A radial power divider-combiner is disclosed. The divider-combiner includes a divider and a combiner. An input signal is provided to a transmission antenna that radiates the input signal inside the divider. Within the divider, the input signal is divided into a plurality of individual signals. The individual signals are received by receiving antennas and provided to respective amplifiers. The amplifiers amplify the respective individual signals by a desired amplification factor. The amplified individual signals are provided to a plurality of transmitting antennas within the combiner. Inside the combiner, the amplified individual signals are combined to form an output signal that is received by a receiving antenna in the combiner.
摘要翻译： 公开了径向功率分配器组合器。 分频器组合器包括分频器和组合器。 输入信号被提供给发射天线，辐射分压器内部的输入信号。 在分频器内，输入信号被分成多个单独的信号。 各个信号由接收天线接收并提供给相应的放大器。 放大器通过期望的放大因子来放大各个信号。 放大的单独信号被提供给组合器内的多个发射天线。 在组合器内，放大的各个信号被组合以形成由组合器中的接收天线接收的输出信号。
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