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Three transmission‐line transformers for phase retrieval from scalar reflection coefficients
Author(s) -
Attiya Ahmed M.
Publication year - 2003
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.11338
Subject(s) - reflection coefficient , scalar (mathematics) , transmission line , nonlinear system , microwave , reflection (computer programming) , optics , transformer , mathematical analysis , mathematics , physics , electronic engineering , engineering , electrical engineering , computer science , geometry , quantum mechanics , voltage , programming language
In this paper, a new approach to obtain the phase angle of an unknown complex load using scalar reflection coefficients is presented. This approach is based on measuring the scalar reflection coefficient using three different transmission‐line transformers. The relation between the two scalar reflection coefficients is presented as a nonlinear equation of the unknown phase angle. The value of the unknown phase angle represents a common root of these nonlinear phase equations. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 40: 231–235, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11338