On the Phase-Compensated Long-Range VNA-based Channel Sounder for sub-6 GHz, mmWave and sub-THz frequency bands

This paper presents an overview of the vector network analyzer (VNA)-based phase-compensated channel sounder at sub-6 GHz, mmWave and sub-Terahertz (sub-THz) bands. The optical cable solution can enable long-range channel measurements for all these three bands, since it can effectively minimize the...

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Bibliographic Details
Published in2022 16th European Conference on Antennas and Propagation (EuCAP) pp. 1 - 5
Main Authors Lyu, Yejian, Mbugua, Allan Wainaina, Olesen, Kim, Kyosti, Pekka, Fan, Wei
Format Conference Proceeding
LanguageEnglish
Published European Association for Antennas and Propagation 27.03.2022
Subjects
Bending
Channel sounding
Length measurement
Optical losses
Optical variables measurement
phase compensation
Phase measurement
phase-coherent
Phased arrays
radio-over-fiber
Time-frequency analysis
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Summary:This paper presents an overview of the vector network analyzer (VNA)-based phase-compensated channel sounder at sub-6 GHz, mmWave and sub-Terahertz (sub-THz) bands. The optical cable solution can enable long-range channel measurements for all these three bands, since it can effectively minimize the cable loss. The phase compensation architecture and principle are also discussed in this paper. The accurate phase measurement is enabled by the phase compensation scheme, which is essential for application in multi-channel/antenna measurements. We summarized the performance of the designed channel sounder under two types of cable effect condition, namely thermal changes and mechanical stress. Under these two cable conditions, the phase compensated channel sounders are validated in back-to-back measurements. The compensated phases demonstrate the robustness and effectiveness of these channel sounder for the frequency bands of 1-30 GHz, and 220-330 GHz.
DOI:10.23919/EuCAP53622.2022.9769464