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    • 2. 发明申请
    • PASSIVE INTERMODULATION DISTORTION MEASURING METHOD AND SYSTEM
    • 被动互调失真测量方法与系统
    • US20100295533A1
    • 2010-11-25
    • US12377524
    • 2007-02-23
    • Nobuhiro KugaYasuyuki YamamotoMitsuru DoiAtsunori Endo
    • Nobuhiro KugaYasuyuki YamamotoMitsuru DoiAtsunori Endo
    • G01R23/02
    • G01R23/20
    • According to a reception passive intermodulation measurement method of the present invention, a device under test is set to the mismatching condition, and a standing wave is generated on a transmission line where the sample is connected. Since the tip of the transmission line is short-circuited using the sample, the sample is positioned at the anti-node of the standing wave, and test signals are applied at a high current density. System noise is calibrated with the tip of the transmission line being open. Since impedance matching is not required and terminators are not employed, a large measurement dynamic range is obtained without being affected by passive intermodulation that is generated in terminators. The sample is very small, and an arbitrary shape can be selected. The property measurement is enabled for a wide range of materials, regardless of a conductive material, an insulating material and a magnetic material.
    • 根据本发明的接收无源互调测量方法,将被测设备设置为不匹配条件,并在连接了样本的传输线上产生驻波。 由于传输线的尖端使用样品短路,所以样品位于驻波的反节点处,并以高电流密度施加测试信号。 系统噪声被校准,传输线的尖端打开。 由于不需要阻抗匹配并且不使用终端器,所以获得大的测量动态范围而不受在终端器中产生的被动互调的影响。 样品非常小,可以选择任意形状。 无论导电材料,绝缘材料和磁性材料如何,都可对各种材料进行性能测量。