A. Yu. Nikolaenko – Postgraduate Student, Department of Information and Communication Systems and Software Engineering, Yuri Gagarin State Technical University of Saratov E-mail: anikolaenkosstu@gmail.com

A. A. L’vov – Dr.Sc. (Eng.), Professor, Department of Information and Communication Systems and Software Engineering, Yuri Gagarin State Technical University of Saratov

E-mail: alvova@mail.ru

P. A. L'vov – Ph.D. (Eng.), Head of Laboratory of Engels Design and Development Department "Signal" n.a. A.I. Glukharev E-mail: peter.lvov@gmail.com

The calibration algorithm of the radio frequency identification reader based on the combined multiport reflectometer has been presented in the paper. The algorithm is based on initial estimation of complex amplitudes of incident and reflected waves using only responses of multiport measuring line probes. The basic equations of the method and results of computer simulation have been given. The advantages of the method have been discussed.

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