Vol 23, No 1 (2018)

DOI: https://doi.org/10.15407/rpra23.01

March

Table of Contents

Radio Astronomy and Astrophysics

INVESTIGATION OF THE UNIVERSE BY THE LOW-FREQUENCY RADIO ASTRONOMY METHODS IN UKRAINE (According to the report on the XI All-Ukrainian Festival of Science of 18 May 2017, Kyiv)
A. A. Konovalenko
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3

Radio Physics of Geospace

CHARACTERISTICS OF THE INFRASOUND SIGNAL GENERATED BY CHELYABINSK CELESTIAL BODY: GLOBAL STATISTICS
L. F. Chernogor, N. B. Shevelev
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24

Scattering and Diffraction of Waves

OPERATOR METHOD IN THE SCALAR WAVE DIFFRACTION BY AXIALLY-SYMMETRIC DISCONTINUITIES IN THE SCREEN
M. E. Kaliberda, L. M. Lytvynenko, S. A. Pogarsky
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36

Antennas, Waveguides and Quasioptics

NOISE TEMPERATURE OF THE ACTIVE PHASED ARRAY OF THE GURT RADIO TELESCOPE
P. L. Tokarsky, A. A. Konovalenko, S. N. Yerin, I. N. Bubnov
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43

Microwave Phenomena in Devices, Components and Systems of Scientific Instruments

ROLE OF NON-RECIPROCITY IN THE THEORY OF OSCILLATIONS
V. A. Buts, D. M. Vavriv
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60