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Compact and low‐cost reflectometer using a LH‐NLTL frequency translator
Author(s) -
Park Soonwoo,
Kim Jingyu,
Kim Hongjoon
Publication year - 2017
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.30419
Subject(s) - broadband , microwave , transmission line , calibration , resistive touchscreen , reflectometry , electrical engineering , network analyzer (electrical) , electronic engineering , engineering , materials science , acoustics , optics , physics , computer science , telecommunications , time domain , quantum mechanics , computer vision
In this study, we fabricated a low‐cost, miniaturized reflectometry system using a left‐handed nonlinear transmission line (LH‐NLTL) and compared its performance with that of a commercial vector network analyzer (VNA). In the system, we used the LH‐NLTL as a frequency translator to replace a bulky and expensive frequency synthesizer. In addition, instead of using a bulky broadband coupler, we used a compact resistive coupler to minimize the size of the overall system. To improve system accuracy, we employed a four‐port network calibration equation. The resulting system exhibits highly similar performance compared to a commercial VNA. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:873–876, 2017
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