Method of measuring the AM/PM conversion of a device under test

    公开(公告)号:US10768215B2

    公开(公告)日:2020-09-08

    申请号:US16153550

    申请日:2018-10-05

    IPC分类号: G01R29/06

    摘要: A method of measuring the AM/PM conversion of a device under test having a local oscillator is described. A device under test with an embedded local oscillator is provided. A signal source is connected to an input of the device under test. A receiver is connected to an output of the device under test. An input signal is provided by the signal source. The input signal has an initial power level. The input signal is input to the device under test. The power level of the input signal is changed. An output signal of the device under test is measured at different power levels of the input signal.

    ULTRA-WIDE BAND MEASUREMENT BRIDGE
    10.
    发明申请
    ULTRA-WIDE BAND MEASUREMENT BRIDGE 有权
    超宽带测量桥

    公开(公告)号:US20150130554A1

    公开(公告)日:2015-05-14

    申请号:US14398418

    申请日:2013-05-03

    IPC分类号: G01R27/06 H03H7/42 G01R27/28

    摘要: A measuring bridge (1) provides a first matching pad (2), a second matching pad (3) and a third matching pad (4), wherein all matching pads (2, 3, 4) comprise at least three resistors (21, 22, 23, 31, 32, 33, 41, 42, 43) which are arranged in a T-structure. A second resistor (32) of the second matching pad (3) is connected to a second resistor (22) of the first matching pad (2), and a third resistor (43) of the third matching pad (4) is connected to a third resistor (23) of the first matching pad (2). A second resistor (42) of the third matching pad (4) can be connected to a device under test (7). A third resistor (33) of the second matching pad (3) can be connected to a calibration standard (5), and a first resistor (31, 41) of the second and the third matching pad (3, 4) are connected in each case to a signal input of an element (11) which suppresses a common-mode component on its two signal inputs.

    摘要翻译: 测量桥(1)提供第一匹配焊盘(2),第二匹配焊盘(3)和第三匹配焊盘(4),其中所有匹配焊盘(2,3,4)包括至少三个电阻器(21, 22,23,31,32,33,41,42,43),其被布置成T形结构。 第二匹配焊盘(3)的第二电阻器(32)连接到第一匹配焊盘(2)的第二电阻器(22),并且第三匹配焊盘(4)的第三电阻器(43)连接到 第一匹配焊盘(2)的第三电阻器(23)。 第三匹配焊盘(4)的第二电阻(42)可连接到被测器件(7)。 第二匹配焊盘(3)的第三电阻器(33)可以连接到校准标准(5),并且第二和第三匹配焊盘(3,4)的第一电阻器(31,41)被连接到 每个情况都适用于抑制其两个信号输入上的共模分量的元件(11)的信号输入。