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A review on six-port radar and its calibration techniques
Publikationstyp
Conference Paper
Date Issued
2018-07-05
TORE-URI
Start Page
80
End Page
83
Citation
International Microwave and Radar Conference, MIKON: 80-83 (2018-07-05)
Contribution to Conference
Publisher DOI
The Six-port network is known for its high phase resolution and is therefore an interesting candidate for precise displacement sensors. This work gives an overview of Six-port networks and implementation technologies. Furthermore, several state-of-The-Art calibration techniques are discussed, which are necessary to achieve accurate displacement measurements. The calibration techniques can be classified into four categories: calibration of baseband signals, I/Q domain calibration, phase linearization and detector linearization. Highest accuracy is obtained by a combination of two or more calibration steps.