Two-dimensional scanning cylindrical reflector

    公开(公告)号:US10158170B2

    公开(公告)日:2018-12-18

    申请号:US15005018

    申请日:2016-01-25

    摘要: A parabolic cylindrical reflector antenna that comprises two or more antenna feeds each directed towards a parabolic cylindrical reflector, wherein the antenna feeds are positioned in one or more line-arrays parallel to a focal line of the parabolic cylindrical reflector, and the line-array is substantially centered opposing the reflector. The antenna comprises a controller configured to scan along a straight edge of the reflector by electronically adjusting a phase of each of the antenna feeds, thereby changing the incident angle of an energy beam relative to the reflector. The controller is configured to scan along a curved edge of the reflector by moving, using a mechanical positioning mechanism, the antenna feeds in a direction parallel to a directrix of the reflector while maintaining the positioning or by electronically selecting one of two or more parallel line-arrays.

    Electro-optic modulator
    2.
    发明授权
    Electro-optic modulator 有权
    电光调制器

    公开(公告)号:US09042684B2

    公开(公告)日:2015-05-26

    申请号:US13603971

    申请日:2012-09-05

    IPC分类号: G02F1/035 G02F1/01

    CPC分类号: G02F1/0356 G02F1/0121

    摘要: An electro-optical modulator device includes an optical signal path partially defined by a waveguide portion, a radio frequency (RF) signal path partially defined by a conductive line portion, an interaction region where an RF signal propagating in the RF signal path interacts with an optical signal propagating in the optical signal path to modulate the optical signal, and a first tuning portion arranged proximate to the conductive line portion, the first tuning portion including a conductive portion and a switch portion operative to connect the conductive portion to ground.

    摘要翻译: 电光调制器装置包括由波导部分部分地限定的光信号路径,由导线部分限定的射频(RF)信号路径,在RF信号路径中传播的RF信号与一个 光信号在光信号路径中传播以调制光信号,以及布置在导线部分附近的第一调谐部分,第一调谐部分包括导电部分和可操作地将导电部分连接到地的开关部分。

    Drain-pumped sub-harmonic mixer for millimeter wave applications
    5.
    发明授权
    Drain-pumped sub-harmonic mixer for millimeter wave applications 有权
    用于毫米波应用的排水泵子谐波混合器

    公开(公告)号:US08594609B2

    公开(公告)日:2013-11-26

    申请号:US13046377

    申请日:2011-03-11

    IPC分类号: H04B1/26 H03D7/14 H04B1/30

    摘要: A sub-harmonic mixer includes a first transistor having a source and a drain and a second transistor having a source connected to the source of the first transistor and a drain connected to the drain of the first transistor. A mixing transistor is configured to be biased in a linear operating region. The mixing transistor includes a drain coupled to the sources of the first transistor and the second transistor. The mixing transistor has its drain driven by a signal at twice a local oscillator (LO) frequency and its gate driven by a radio frequency (RF) signal while the mixing transistor is biased in the linear region such that a process of frequency doubling and mixing are performed simultaneously.

    摘要翻译: 子谐波混合器包括具有源极和漏极的第一晶体管和具有连接到第一晶体管的源极的源极和连接到第一晶体管的漏极的漏极的第二晶体管。 混合晶体管被配置为在线性工作区域中偏置。 混合晶体管包括耦合到第一晶体管和第二晶体管的源极的漏极。 混合晶体管的漏极由本地振荡器(LO)频率的两倍的信号驱动,其栅极由射频(RF)信号驱动,而混合晶体管被偏置在线性区域中,使得频率倍增和混合的过程 同时进行。

    Differential cross-coupled power combiner or divider
    6.
    发明授权
    Differential cross-coupled power combiner or divider 有权
    差分交叉耦合功率组合器或分压器

    公开(公告)号:US08482364B2

    公开(公告)日:2013-07-09

    申请号:US12788910

    申请日:2010-05-27

    IPC分类号: H01P5/12

    CPC分类号: H01P5/16

    摘要: A differential cross-coupled power combiner in one aspect comprises a plurality of inputs, an output, a plurality of differential transmission lines each coupled between a corresponding one of the inputs and the output, and at least one set of additional differential transmission lines arranged in series between any two of the inputs. First and second ones of the additional differential transmission lines in the set are coupled to one another using a cross-coupling arrangement. Other aspects of the invention provide a differential cross-coupled power divider, communication system receivers and transmitters incorporating respective power combiners and dividers, and integrated circuit implementations of power combiners and dividers.

    摘要翻译: 差分交叉耦合功率组合器在一个方面包括多个输入,输出,多个差分传输线,每个差分传输线分别耦合在相应的一个输入端和输出端之间,以及至少一组附加差分传输线路,其布置在 任何两个输入之间的串联。 组中的第一和第二附加差动传输线使用交叉耦合装置彼此耦合。 本发明的其它方面提供了差分交叉耦合功率分配器,包括各个功率组合器和分频器的通信系统接收器和发射器以及功率组合器和分频器的集成电路实现。

    Drain-pumped sub-harmonic mixer for millimeter wave applications
    7.
    发明授权
    Drain-pumped sub-harmonic mixer for millimeter wave applications 有权
    用于毫米波应用的排水泵子谐波混合器

    公开(公告)号:US07962114B2

    公开(公告)日:2011-06-14

    申请号:US11622812

    申请日:2007-01-12

    IPC分类号: H04B1/26

    摘要: A sub-harmonic mixer includes a first transistor having a source and a drain and a second transistor having a source connected to the source of the first transistor and a drain connected to the drain of the first transistor. A mixing transistor is configured to be biased in a linear operating region. The mixing transistor includes a drain coupled to the sources of the first transistor and the second transistor. The mixing transistor has its drain driven by a signal at twice a local oscillator (LO) frequency and its gate driven by a radio frequency (RF) signal while the mixing transistor is biased in the linear region such that a process of frequency doubling and mixing are performed simultaneously.

    摘要翻译: 子谐波混合器包括具有源极和漏极的第一晶体管和具有连接到第一晶体管的源极的源极和连接到第一晶体管的漏极的漏极的第二晶体管。 混合晶体管被配置为在线性工作区域中偏置。 混合晶体管包括耦合到第一晶体管和第二晶体管的源极的漏极。 混合晶体管的漏极由本地振荡器(LO)频率的两倍的信号驱动,其栅极由射频(RF)信号驱动,而混合晶体管被偏置在线性区域中,使得频率倍增和混合的过程 同时进行。

    Differential Cross-Coupled Power Combiner or Divider
    8.
    发明申请
    Differential Cross-Coupled Power Combiner or Divider 有权
    差分交叉耦合功率组合器或分频器

    公开(公告)号:US20110063048A1

    公开(公告)日:2011-03-17

    申请号:US12788910

    申请日:2010-05-27

    IPC分类号: H01P5/12

    CPC分类号: H01P5/16

    摘要: A differential cross-coupled power combiner in one aspect comprises a plurality of inputs, an output, a plurality of differential transmission lines each coupled between a corresponding one of the inputs and the output, and at least one set of additional differential transmission lines arranged in series between any two of the inputs. First and second ones of the additional differential transmission lines in the set are coupled to one another using a cross-coupling arrangement. Other aspects of the invention provide a differential cross-coupled power divider, communication system receivers and transmitters incorporating respective power combiners and dividers, and integrated circuit implementations of power combiners and dividers.

    摘要翻译: 差分交叉耦合功率组合器在一个方面包括多个输入,输出,多个差分传输线,每个差分传输线分别耦合在相应的一个输入端和输出端之间,以及至少一组附加差分传输线路,其布置在 任何两个输入之间的串联。 组中的第一和第二附加差动传输线使用交叉耦合装置彼此耦合。 本发明的其它方面提供了差分交叉耦合功率分配器,包括各个功率组合器和分频器的通信系统接收器和发射器以及功率组合器和分频器的集成电路实现。

    Quadrature modulation circuits and systems supporting multiple modulation modes at gigabit data rates
    9.
    发明授权
    Quadrature modulation circuits and systems supporting multiple modulation modes at gigabit data rates 有权
    正交调制电路和系统以千兆位数据速率支持多种调制模式

    公开(公告)号:US07733980B2

    公开(公告)日:2010-06-08

    申请号:US11486539

    申请日:2006-07-14

    IPC分类号: H03C1/52

    摘要: A quadrature modulation circuit includes a mixer circuit including an integrated sign modulation control circuit and a plurality of mixer ports. The mixer ports include a first input port, a second input port, an output port and a sign modulation control port. The modulation circuit generates a modulated signal by operation of the mixer circuit multiplying a modulating signal applied to the first input port with a carrier signal applied to the second input port to generate a mixed signal output from the output port, and by operation of the integrated sign modulation control circuit controlling polarity switching of a signal at one of the mixer ports in response to a sign modulation control signal input to the sign modulation control port.

    摘要翻译: 正交调制电路包括具有集成符号调制控制电路和多个混频器端口的混频电路。 混频器端口包括第一输入端口,第二输入端口,输出端口和符号调制控制端口。 调制电路通过使施加到第一输入端口的调制信号与施加到第二输入端口的载波信号相乘的混频器电路的操作产生调制信号,以产生从输出端口输出的混合信号,并且通过集成 符号调制控制电路,响应于输入到符号调制控制端口的符号调制控制信号,控制混频器端口之一处的信号的极性切换。

    DRAIN-PUMPED SUB-HARMONIC MIXER FOR MILLIMETER WAVE APPLICATIONS
    10.
    发明申请
    DRAIN-PUMPED SUB-HARMONIC MIXER FOR MILLIMETER WAVE APPLICATIONS 有权
    用于MILLIMETER WAVE应用的排水辅助谐波混合器

    公开(公告)号:US20080169859A1

    公开(公告)日:2008-07-17

    申请号:US11622812

    申请日:2007-01-12

    IPC分类号: H03D7/12 G06G7/12

    摘要: A sub-harmonic mixer includes a first transistor having a source and a drain and a second transistor having a source connected to the source of the first transistor and a drain connected to the drain of the first transistor. A mixing transistor is configured to be biased in a linear operating region. The mixing transistor includes a drain coupled to the sources of the first transistor and the second transistor. The mixing transistor has its drain driven by a signal at twice a local oscillator (LO) frequency and its gate driven by a radio frequency (RF) signal while the mixing transistor is biased in the linear region such that a process of frequency doubling and mixing are performed simultaneously.

    摘要翻译: 子谐波混合器包括具有源极和漏极的第一晶体管和具有连接到第一晶体管的源极的源极和连接到第一晶体管的漏极的漏极的第二晶体管。 混合晶体管被配置为在线性工作区域中偏置。 混合晶体管包括耦合到第一晶体管和第二晶体管的源极的漏极。 混合晶体管的漏极由本地振荡器(LO)频率的两倍的信号驱动,其栅极由射频(RF)信号驱动,而混合晶体管被偏置在线性区域中,使得频率倍增和混合的过程 同时进行。