Abstract
A hybrid-channel attenuation measurement system has been built for the measurement of waveguide variable attenuators at V- and W-band s, from 50 to 110 GHz. The hybrid-channel system consists of the V-band and W-band heterodyne channels. One channel is used as the measurement channel, while the other is used as the synchronization channel. The system eliminates the cross-leakage between the channels completely, as the radio frequency signal frequencies in the two channels are different from each other. The experiments show that the system has good performances in measuring phase shift as well. Furthermore, the system can be used as a primary standard of the complex transmission coefficient. A comparison measurement with the vector network analyzer was carried out. The results show that the proposed system has much smaller uncertainties both in the magnitude and in the phase. The measurement uncertainty of attenuation is 0.004–0.11 dB, and the phase shift uncertainty is less than 1° at frequencies from 50 to 100 GHz and the dynamic range from 0–80 dB.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Transactions on Instrumentation and Measurement
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
