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J. Electromagn. Eng. Sci > Volume 10(4); 2010 > Article
Journal of the Korean Institute of Electromagnetic and Science 2010;10(4):282-289.
DOI: https://doi.org/10.5515/JKIEES.2010.10.4.282   
Vector Network Analysis Using a One-Path, Frequency-Multiplied Photonic Link
Dong-Joon Lee1, Jae-Yong Kwon1, Jin-Seob Kang1, John F. Whitaker2
1Center for Electromagnetics, Korea Research Institute of Standards and Science
2Center for Ultrafast Optical Science and Department of Electrical Engineering and Computer Science University of Michigan
Abstract
A simplified, practical vector network analyzer (VNA) that uses mature radio-over-fiber technology has been designed and demonstrated. The measurement concept allows the full S-parameters of a microwave device (or antenna) to be obtained while minimizing the detrimental effects of electrical cables, which are replaced with a photonic link. A variety of high-frequency light modulation schemes with frequency sweeping capabilities are presented to realize a one-path (single, forward), frequency-multiplied optical link for VNA applications. Using the photonic one-path link, full two-port S-parameters have been extracted based on five-term error modeling, which has half the error terms compared with the standard duplex configuration. The S-parameters of a microwave filter and antenna measured using frequency-multiplied optical links are found to be in good agreement with those obtained using a conventional VNA.
Key words: S-Parameter Measurement, One-Path Two-Port Calibration, Radio-Over-Fiber (RoF)
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