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41 条记录 (耗时 0.011 秒)

    Propagation delay adjustment circuit
    1.
    发明申请
    Propagation delay adjustment circuit 审中-公开
    传播延迟调整电路

    公开(公告)号：US20040217794A1

    公开(公告)日：2004-11-04

    申请号：US10427557

    申请日：2003-04-30

    发明人： Mark Strysko

    IPC分类号： H03H011/26

    CPC分类号： H03H7/345 ,  H03H11/265 ,  H03K5/13 ,  H03K5/151 ,  H03K5/1534 ,  H03K2005/00293

    摘要： Disclosed is a method and apparatus for variably and independently delaying the rising and falling edges of a digital waveform including a dual polarity output buffer, a first delay circuit, a second delay circuit and a recombination circuit. The dual polarity output buffer outputs a first signal that is a substantial replica of the input signal and a second signal that is an inversion of the input signal. The first delay circuit is connected to the dual polarity output buffer and generates a first time delay in the rising edges of the first, non-inverted signal. The second delay circuit is also connected to the dual polarity output buffer and generates a second time delay in the rising edges of the second, inverted signal. The recombination circuit is connected to both the first delay circuit and the second delay circuit and combines the outputs thereof to generate a composite output signal representing the input signal with both the rising edges thereof and the falling edges thereof delayed independently.

    Variable delay line
    2.
    发明授权
    Variable delay line 失效
    可变延迟线

    公开(公告)号：US5177457A

    公开(公告)日：1993-01-05

    申请号：US753415

    申请日：1991-08-30

    申请人： Mitsunori Kaneko ,  Yukinori Miyake

    发明人： Mitsunori Kaneko ,  Yukinori Miyake

    IPC分类号： H03H7/30 ,  H03H7/34

    CPC分类号： H03H7/345

    摘要： A variable delay line includes a housing package (20, 21); an input terminal (27) extending outwardly from a first side of the housing package; an output terminal (28) extending outwardly from a second side of the housing package which is opposite to the first side; a circuit board (23) provided within the housing package; an input terminal connection land (31) provided on the circuit board and connected to an end of the input terminal; an output terminal connection land (32) provided on the circuit board and connected to an end of the output terminal; a plurality of delay elements (36); a plurality of pairs of delay element connection fixed pads (33), each pair thereof connected to each of the delay elements; and a plurality of series connection fixed contact pads (34, 35) each corresponding to each pair of the delay element connection fixed pads and connectable in series across the input and output terminal connection lands.

    摘要翻译： 可变延迟线包括壳体封装（20,21）; 从壳体封装的第一侧向外延伸的输入端子; 输出端子（28），其从所述壳体封装的与所述第一侧相对的第二侧向外延伸; 设置在所述壳体封装内的电路板（23）; 设置在所述电路板上并连接到所述输入端子的端部的输入端子连接区域（31） 设置在所述电路板上并连接到所述输出端子的端部的输出端子连接平台（32） 多个延迟元件（36）; 多对延迟元件连接固定焊盘（33），其每一对连接到每个延迟元件; 以及多个串联连接固定接触焊盘（34,35），每个对应于每对延迟元件连接固定焊盘并且可串联连接在输入和输出端子连接焊盘上。

    Variable delay line system
    3.
    发明授权
    Variable delay line system 失效
    可变延迟线系统

    公开(公告)号：US4697162A

    公开(公告)日：1987-09-29

    申请号：US826374

    申请日：1986-02-05

    申请人： Kazuo Kameya

    发明人： Kazuo Kameya

    IPC分类号： H01P9/00 ,  H03H7/34 ,  H01P3/08

    CPC分类号： H01P9/00 ,  H03H7/345

    摘要： This variable delay line system includes a variable delay line which has two output ends and a plurality of signal input points at its intermediate points, a means for selecting one of the input points of the variable delay line and for inputting a signal thereto, and a means for switching the signals from the output ends of the variable delay line and for outputting them. Optionally, a fixed delay line can further be included. Thereby, the varibale delay line system has a simple and compact structure and is effective.

    摘要翻译： 该可变延迟线系统包括可变延迟线，该可变延迟线在其中间点具有两个输出端和多个信号输入点，用于选择可变延迟线的输入点之一并输入信号的装置，以及 用于从可变延迟线的输出端切换信号并输出​​的装置。 可选地，还可以包括固定延迟线。 因此，变形延迟线系统具有简单紧凑的结构并且是有效的。

    Harmonic suppressed bandwidth and center frequency tunable capacitive coupled band pass filter
    8.
    发明授权
    Harmonic suppressed bandwidth and center frequency tunable capacitive coupled band pass filter 有权

    公开(公告)号：US12119799B1

    公开(公告)日：2024-10-15

    申请号：US17523300

    申请日：2021-11-10

    申请人： HRL Laboratories, LLC

    发明人： Hanseung Lee

    IPC分类号： H03H7/01 ,  H01P1/203 ,  H03H7/18 ,  H03H7/34

    CPC分类号： H03H7/0115 ,  H03H7/0153 ,  H03H7/18 ,  H03H7/345

    摘要： A filter comprising a linear array of a plurality of TL-inspired T-networks connected in series by capacitors, each TL-inspired T-network typically comprising a pair of conventional transmission lines connected in series with a circuit comprising pair of inductors and a single capacitor, the conventional transmission lines associated with each TL-inspired T-network being optionally combinable together or with conventional transmission lines in neighboring TL-inspired T-networks, wherein the circuit comprising a pair of inductors and a single capacitor is an artificial transmission line providing target characteristic impedance, which is same as that of the conventional transmission lines, and phase delay.

    Metamaterial enabled compact wideband tunable phase shifters
    9.
    发明授权
    Metamaterial enabled compact wideband tunable phase shifters 有权
    超材料启用紧凑型宽带可调谐移相器

    公开(公告)号：US08680945B1

    公开(公告)日：2014-03-25

    申请号：US13014678

    申请日：2011-01-26

    申请人： Leah Wang

    发明人： Leah Wang

    IPC分类号： H03H7/20 ,  H03H7/01

    CPC分类号： H03H7/20 ,  H01P1/18 ,  H01P1/184 ,  H03H7/345

    摘要： Negative refractive index (NRI) transmission line (TL) metamaterial may be applied to phase shifter devices. In some aspects, a one dimensional NRI TL enabled compact and tunable phase shifter is provided. The phase shifter comprises cascaded sections of NRI metamaterial TL and positive refraction index TL with tailored dispersion characteristics. The phase shifter, for example as compared to common delay line based or ferrite based phase shifters, may be compact in size, may be continuously tunable from negative to positive phases, may have flatter and more linear phase responses over wideband, may have small group delays, and may be compatible to microwave circuits.

    摘要翻译： 负折射率（NRI）传输线（TL）超材料可以应用于移相器件。 在一些方面，提供了一维NRI TL使得紧凑和可调谐的移相器。 移相器包括具有定制色散特性的NRI超材料TL和正折射率TL的级联部分。 移相器例如与基于普通延迟线或基于铁氧体的移相器相比可以是紧凑的尺寸，可以从负相到正相连续可调，在宽带上可以具有更平坦和更线性的相位响应，可以具有小的组 延迟，并可能兼容微波电路。

    Method and apparatus for electrically adjusting delay in radio-frequency systems
    10.
    发明授权
    Method and apparatus for electrically adjusting delay in radio-frequency systems 失效
    电气调节射频系统延时的方法和装置

    公开(公告)号：US07456706B2

    公开(公告)日：2008-11-25

    申请号：US10572951

    申请日：2004-09-21

    申请人： James R. Blodgett

    发明人： James R. Blodgett

    IPC分类号： H03H7/30

    CPC分类号： H03H7/325 ,  H01P9/00 ,  H03H7/18 ,  H03H7/345

    摘要： An apparatus and method for providing an electrically adjustable RF delay in which a splitter splits an input signal into two signal paths, one signal path providing a delay fixed at an integral number of wavelengths of a desired center frequency and both signal paths providing electrically adjustable attenuation. A combiner combines the signals passing through the signal paths, such that the sum of the electrically-adjustable attenuation provided by the signal paths adds to unity, whereby the input signal is delayed by an adjustable time depending upon the attenuations provided by the signal paths.

    摘要翻译： 一种用于提供电可调节RF延迟的装置和方法，其中分配器将输入信号分裂成两个信号路径，一个信号路径提供固定在期望中心频率的整数个波长的延迟，以及提供电可调衰减的两个信号路径 。 组合器组合通过信号路径的信号，使得由信号路径提供的电可调衰减的总和增加到一个，由此根据由信号路径提供的衰减，输入信号被延迟可调节的时间。