PHASE COHERENT MAIN AND REMOTE UNITS OF A NETWORK ANALYZER

• Main Authors: WILLIAM F. WINSTON, JEFFREY S. BOTTMAN, THEODORE J. BRILLHART
• Format: Patent
• Language: Chinese; English
• Published: 27.07.2018
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

Provided is a network analyzer that includes a main unit and a physically separate remote unit. In at least one configuration, the main unit generates and transmits test signals through a device undertest to the remote unit. Reference circuitry in the main unit uses signals from a local oscillator and an analog-to-digital ADC sample clock to produce reference signal data representative of the test signals as transmitted to the device under test. Receive circuitry in the remote unit produces received signal data representative of the test signals as received from the device under test, using the same signals from the local oscillator and ADC sample clock as used by the reference circuitry to produce the reference signal data. Comparison of the received signal data with the reference signaldata indicates parameters of the device under test, including attenuation and phase shift in the test signals as caused by the device under test. 本发明涉及种网络分析仪，所述网络分析仪包括主单元和物理地分离的远程单元。在至少种配置中，所述主单元生成测试信号并穿过待测装置向所述远程单元发射测试信号。所述主