Phased array over the air testing

    公开(公告)号:US11916302B2

    公开(公告)日:2024-02-27

    申请号:US17541175

    申请日:2021-12-02

    CPC classification number: H01Q3/34 G01R29/0892 H01Q3/267 G01R29/10

    Abstract: A test and measurement system includes a test and measurement device having input channels, a reference array of antennas connected to the input channels, one or more processors in the test and measurement device configured to execute code to cause the one or more processors to receive a first signal from a phased array of antennas connected to a device under test directed at a first side of the reference array, receive a second signal from the phased array of antennas connected to the device under test directed at a second side of the reference array, without moving the device under test, the phased array, or the reference array. A method of testing a device under test using a phased array of antennas includes tuning the phased array to a first location at a first side of a reference array of antennas, by adjusting a phase for each antenna in the phased array, receiving a first signal from the device under test at the first location, tuning the phased array to a second location at a second side of the reference array of antennas, and receiving a second signal from the device under test at the second location. A test and measurement device includes at least two input channels, an array of at least two reference antennas, each antenna connected to one of the input channels, one or more processors in the test and measurement device configured to execute code to cause the one or more processors to receive an input signal from one or more of the reference antennas, and measure the input signal from one or more of the reference antennas.

    Frequency converter accessory for a test and measurement instrument

    公开(公告)号:US11619657B2

    公开(公告)日:2023-04-04

    申请号:US17099701

    申请日:2020-11-16

    Abstract: An accessory device has a test port, an instrument port to connect to an instrument having an operating bandwidth, and one or more configurable signal paths connectable between the test port and the instrument port to convert a signal from the test port having a first frequency range to a signal having a second frequency range different than the first frequency range. A test and measurement system has a test and measurement instrument having an operating bandwidth, and an accessory device. The accessory device has a first instrument port to connect the accessory device to the test and measurement instrument, a test port to connect the accessory device to a device under test, and one or more configurable signal paths connectable between the test port and the instrument port to down-convert a signal from the test port having a first frequency range to a signal having a second frequency range lower than the first frequency range.

    PHASED ARRAY OVER THE AIR TESTING

    公开(公告)号:US20220173510A1

    公开(公告)日:2022-06-02

    申请号:US17541175

    申请日:2021-12-02

    Abstract: A test and measurement system includes a test and measurement device having input channels, a reference array of antennas connected to the input channels, one or more processors in the test and measurement device configured to execute code to cause the one or more processors to receive a first signal from a phased array of antennas connected to a device under test directed at a first side of the reference array, receive a second signal from the phased array of antennas connected to the device under test directed at a second side of the reference array, without moving the device under test, the phased array, or the reference array. A method of testing a device under test using a phased array of antennas includes tuning the phased array to a first location at a first side of a reference array of antennas, by adjusting a phase for each antenna in the phased array, receiving a first signal from the device under test at the first location, tuning the phased array to a second location at a second side of the reference array of antennas, and receiving a second signal from the device under test at the second location. A test and measurement device includes at least two input channels, an array of at least two reference antennas, each antenna connected to one of the input channels, one or more processors in the test and measurement device configured to execute code to cause the one or more processors to receive an input signal from one or more of the reference antennas, and measure the input signal from one or more of the reference antennas.

    Internal chirp generator with time aligned acquisition in a mixed-domain oscilloscope

    公开(公告)号:US09869699B2

    公开(公告)日:2018-01-16

    申请号:US14974298

    申请日:2015-12-18

    Abstract: A mixed-domain oscilloscope (MDO) includes a signal generator configured to generate a test signal having a span ranging from a user-configurable start frequency to a user configurable stop frequency, an output channel coupled to the signal generator and configured to transmit the test signal, an RF input channel configured to receive a return signal based on the test signal, an acquisition section configured to acquire and digitize the return signal as an acquisition record, and a ramp busy signal generator configured to substantially time-align the acquisition record with the test signal. The test signal includes a chirp signal that is a linearly swept sine wave that spans between the user-configurable start frequency and the user-configurable stop frequency. Methods include calibrating the chirp signal, connecting the MDO in various test configurations relative to external return loss bridge and DUT equipment, and performing measurements such as S21 (db), S11 (db), and distance-to-fault type measurements.

    FREQUENCY CONVERTER ACCESSORY FOR A TEST AND MEASUREMENT INSTRUMENT

    公开(公告)号:US20210148951A1

    公开(公告)日:2021-05-20

    申请号:US17099701

    申请日:2020-11-16

    Abstract: An accessory device has a test port, an instrument port to connect to an instrument having an operating bandwidth, and one or more configurable signal paths connectable between the test port and the instrument port to convert a signal from the test port having a first frequency range to a signal having a second frequency range different than the first frequency range. A test and measurement system has a test and measurement instrument having an operating bandwidth, and an accessory device. The accessory device has a first instrument port to connect the accessory device to the test and measurement instrument, a test port to connect the accessory device to a device under test, and one or more configurable signal paths connectable between the test port and the instrument port to down-convert a signal from the test port having a first frequency range to a signal having a second frequency range lower than the first frequency range.

    INTERNAL CHIRP GENERATOR WITH TIME ALIGNED ACQUISITION IN A MIXED-DOMAIN OSCILLOSCOPE
    6.
    发明申请
    INTERNAL CHIRP GENERATOR WITH TIME ALIGNED ACQUISITION IN A MIXED-DOMAIN OSCILLOSCOPE 有权
    内部串联发生器在混合域振荡器中与时间对齐获取

    公开(公告)号:US20160103154A1

    公开(公告)日:2016-04-14

    申请号:US14974298

    申请日:2015-12-18

    Abstract: A mixed-domain oscilloscope (MDO) includes a signal generator configured to generate a test signal having a span ranging from a user-configurable start frequency to a user configurable stop frequency, an output channel coupled to the signal generator and configured to transmit the test signal, an RF input channel configured to receive a return signal based on the test signal, an acquisition section configured to acquire and digitize the return signal as an acquisition record, and a ramp busy signal generator configured to substantially time-align the acquisition record with the test signal. The test signal includes a chirp signal that is a linearly swept sine wave that spans between the user-configurable start frequency and the user-configurable stop frequency. Methods include calibrating the chirp signal, connecting the MDO in various test configurations relative to external return loss bridge and DUT equipment, and performing measurements such as S21 (db), S11 (db), and distance-to-fault type measurements.

    Abstract translation: 混合域示波器(MDO)包括信号发生器,其被配置为产生具有范围从用户可配置起始频率到用户可配置停止频率的跨度的测试信号,耦合到信号发生器并被配置为发送测试 信号,RF输入通道,被配置为基于测试信号接收返回信号;获取部分,被配置为获取并数字化返回信号作为获取记录;以及斜坡忙信号发生器,被配置为基本上使采集记录与时间对齐, 测试信号。 测试信号包括一个线性调频脉冲信号,该线性调频脉冲信号是一种线性扫描正弦波,其跨越用户可配置的起始频率和用户可配置的停止频率。 方法包括校准啁啾信号,相对于外部回波损耗桥和DUT设备将各种测试配置连接MDO,并执行诸如S21(db),S11(db)和距离到故障类型测量的测量。

    Internal chirp generator with time aligned acquisition in a mixed-domain oscilloscope
    7.
    发明授权
    Internal chirp generator with time aligned acquisition in a mixed-domain oscilloscope 有权
    内部啁啾发生器,在混合域示波器中进行时间对齐采集

    公开(公告)号:US09304148B2

    公开(公告)日:2016-04-05

    申请号:US13658563

    申请日:2012-10-23

    Abstract: A mixed-domain oscilloscope (MDO) includes a signal generator configured to generate a test signal having a span ranging from a user-configurable start frequency to a user configurable stop frequency, an output channel coupled to the signal generator and configured to transmit the test signal, an RF input channel configured to receive a return signal based on the test signal, an acquisition section configured to acquire and digitize the return signal as an acquisition record, and a ramp busy signal generator configured to substantially time-align the acquisition record with the test signal. The test signal includes a chirp signal that is a linearly swept sine wave that spans between the user-configurable start frequency and the user-configurable stop frequency. Methods include calibrating the chirp signal, connecting the MDO in various test configurations relative to external return loss bridge and DUT equipment, and performing measurements such as S21 (db), S11 (db), and distance-to-fault type measurements.

    Abstract translation: 混合域示波器(MDO)包括信号发生器,其被配置为产生具有范围从用户可配置起始频率到用户可配置停止频率的跨度的测试信号,耦合到信号发生器并被配置为发送测试 信号,RF输入通道,被配置为基于测试信号接收返回信号;获取部分,被配置为获取并数字化返回信号作为获取记录;以及斜坡忙信号发生器,被配置为基本上使采集记录与时间对齐, 测试信号。 测试信号包括一个线性调频脉冲信号,该线性调频脉冲信号是一种线性扫描正弦波,其跨越用户可配置的起始频率和用户可配置的停止频率。 方法包括校准啁啾信号,相对于外部回波损耗桥和DUT设备将各种测试配置连接MDO,并执行诸如S21(db),S11(db)和距离到故障类型测量的测量。

    FLEXIBLE ARBITRARY WAVEFORM GENERATOR AND INTERNAL SIGNAL MONITOR

    公开(公告)号:US20240027507A1

    公开(公告)日:2024-01-25

    申请号:US18354584

    申请日:2023-07-18

    CPC classification number: G01R31/00 G01R13/00

    Abstract: A test and measurement instrument has an arbitrary waveform generator having at least two waveform generators. Each waveform generator includes a signal generator to generate in-phase (I) and quadrature (Q) digital signals according to a selected signal type for a digital constituent output signal, a pulse envelope sequencer to modulate amplitude of the I and Q digital signals, and one or more multipliers to combine the I and Q digital signals with a carrier signal to produce the digital constituent output signal. The arbitrary waveform generator includes a stream manager to produce modulation descriptor words for the waveform generators, a summing block to selectively combine digital constituent output signals to produce a digital multi-constituent output signal, a digital-to-analog converter to convert the digital multi-constituent output signal to an analog output signal, and an internal signal analyzer to receive an analyzer input of one of more of the digital output signals.

    INTERNAL CHIRP GENERATOR WITH TIME ALIGNED ACQUISITION IN A MIXED-DOMAIN OSCILLOSCOPE
    9.
    发明申请
    INTERNAL CHIRP GENERATOR WITH TIME ALIGNED ACQUISITION IN A MIXED-DOMAIN OSCILLOSCOPE 有权
    内部串联发生器在混合域振荡器中与时间对齐获取

    公开(公告)号:US20140111184A1

    公开(公告)日:2014-04-24

    申请号:US13658563

    申请日:2012-10-23

    Abstract: A mixed-domain oscilloscope (MDO) includes a signal generator configured to generate a test signal having a span ranging from a user-configurable start frequency to a user configurable stop frequency, an output channel coupled to the signal generator and configured to transmit the test signal, an RF input channel configured to receive a return signal based on the test signal, an acquisition section configured to acquire and digitize the return signal as an acquisition record, and a ramp busy signal generator configured to substantially time-align the acquisition record with the test signal. The test signal includes a chirp signal that is a linearly swept sine wave that spans between the user-configurable start frequency and the user-configurable stop frequency. Methods include calibrating the chirp signal, connecting the MDO in various test configurations relative to external return loss bridge and DUT equipment, and performing measurements such as S21(db), S11(db), and distance-to-fault type measurements.

    Abstract translation: 混合域示波器(MDO)包括信号发生器,其被配置为产生具有范围从用户可配置起始频率到用户可配置停止频率的跨度的测试信号,耦合到信号发生器并被配置为发送测试 信号,RF输入通道,被配置为基于测试信号接收返回信号;获取部分,被配置为获取并数字化返回信号作为获取记录;以及斜坡忙信号发生器,被配置为基本上使采集记录与时间对齐, 测试信号。 测试信号包括一个线性调频脉冲信号,该线性调频脉冲信号是一种线性扫描正弦波,其跨越用户可配置的起始频率和用户可配置的停止频率。 方法包括校准啁啾信号,相对于外部回波损耗桥和DUT设备将各种测试配置连接MDO,并执行诸如S21(db),S11(db)和距离到故障类型测量的测量。

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