System Development and Experimental Validation of a Long Range VNA-Based Channel Sounder

Allan Wainaina Mbugua, Wei Fan*, Xuesong Cai, Yun Chen, Wei Wang, Kim Olesen, Gert Frølund Pedersen

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

In a wireless communication system, the radio propagation channel is a complicated component to characterise. Channel sounding equipment thus has to meet specific criteria to extract the desired channel parameters. In this study, the authors outline the development and validation of a vector network analyser (VNA) based channel sounder for the frequency range from 1 to 50 GHz using radio-over-fibre techniques. Three methods of de-embedding phase errors due to hardware impairments are demonstrated and validated via back-to-back measurements. The bidirectional scheme utilising optical circulators is shown to have a superior performance over the two-branch unidirectional and the two-branch bidirectional schemes. Therefore, the bidirectional scheme utilising optical circulators is proposed to achieve a long-range ultra-channel sounder based on the VNA.

Original languageEnglish
JournalIET Microwaves, Antennas & Propagation
Volume14
Issue number14
Pages (from-to)1733–1741
Number of pages9
ISSN1751-8725
DOIs
Publication statusPublished - Nov 2020

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