Undistorted reception of impulse carrier-free signals using a ferrite antenna

doi:10.26565/2311-0872-2019-31-05

Т. N. Ogurtsova O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Science of Ukraine https://orcid.org/0000-0002-3376-5814
N. K. Blinova V. N. Karazin Kharkiv National University https://orcid.org/0000-0001-9388-0008
G. P. Pochanin O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Science of Ukraine http://orcid.org/0000-0002-3211-4390
S. O. Masalov O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Science of Ukraine http://orcid.org/0000-0003-1295-3493
V. V. Usova O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Science of Ukraine https://orcid.org/0000-0002-2716-9151

DOI: https://doi.org/10.26565/2311-0872-2019-31-05

Keywords: pulsed electromagnetic field, pulsed ultra-wideband receiving ferrite antenna, ferrite rod, pulse without carrier frequency, spectral functions

Abstract

Relevance. In recent decades, a new direction of radar has emerged. Temporarily and spatially limited signals with different types of envelope and the wide width of the spectrum have found their application here. The use of such ultra-wideband (UWB) electromagnetic pulses in subsurface sounding requires changes in the principles of designing of equipment for radar systems, including receiving antenna systems. The urgent task remains to build compact pulsed UWB receiving antennas that have high sensitivity and do not distort the shape of the received signal. As such antennas, ferrite loop antennas can be used. The use of ferrite rods in receiving antennas allows to increase their sensitivity, leaving the dimensions small. Methods of designing UWB pulsed ferrite antennas are still in the initial stage of their development and require comprehensive fundamental and applied research.

The purpose of work is to investigate the shape of the induced current in the receiving antenna consisting of a ferrite rod with a loop of a conductor when the antenna is excited by a pulsed electromagnetic field of the form of the most common carrier-free signals.

Methods. To calculate the currents induced in a conductor that encloses a ferrite rod, the finite difference time domain method (FDTD) was used.

Results. There were revealed the relationships between optimal from the point of view of effective undistorted signal reception, the electrodynamic parameters of the ferrite element of the antenna, and the time-frequency parameters of the exciting pulse field in the form of the most common carrier-free functions, namely, the Gaussian functions, the 1st and 2nd derivatives in time of the Gauss function.

Conclusions. The parameters of the ferrite element of the pulsed receiving antenna and the carrier-free exciting pulsed electromagnetic field, at which the receiving antenna in the form of a ferrite rod with a loop of conductor provides sensitive undistorted reception of the pulse signals were determined.

Downloads

Download data is not yet available.

Author Biographies

Т. N. Ogurtsova, O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Science of Ukraine

12, Ac. Proskura st., Kharkiv, 61085, Ukraine

N. K. Blinova, V. N. Karazin Kharkiv National University

4, Svobody Square, Kharkiv, 61022, Ukraine

G. P. Pochanin, O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Science of Ukraine

12, Ac. Proskura st., Kharkiv, 61085, Ukraine

S. O. Masalov, O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Science of Ukraine

12, Ac. Proskura st., Kharkiv, 61085, Ukraine

V. V. Usova, O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Science of Ukraine

12, Ac. Proskura st., Kharkiv, 61085, Ukraine

References

Shirman IaD. O pervykh otechestvennykh issledovaniiakh po SShP lokatcii [About the first domestic studies on UWB location]. Radiotekhnika i elektronika. 1991;36(1):96-100. [in Russian].

Kharmut KhF. Nesinusoidalnye volny v radiolokatcii i sviazi [Nonsinusoidal waves in radar and communications]. red. A.P. Maltceva. Moskva: Radio i sviaz, 1985. 376 p. [in Russian].

Astanin LIu, Kostylev AA. Osnovy sverkhshirokopolosnykh radiolokatcionnykh izmerenii [Basics of ultra-wideband radar measurements]. Moskva: Radio i sviaz.1989. 192 p. [in Russian].

Masalov SA, Pochanin GP. Problemy i puti razvitiia sverkhshirokopolosnoi videoimpulsnoi georadiolokatcii [Problems and development paths of ultra-wideband video pulse georadar]. Radiofizika i elektronika. Kharkov: Institut radiofiziki i elektroniki NAN Ukrainy. 2005;10:633-640. [in Russian].

Khomich VI. Priemnye ferritovye antenny [Ferrite Receiving Antennas]. Moskva-Leningrad: Gos. energoizdat, 1960;370. 64 p. [in Russian].

Bobkov AM. Shirokopolosnaia priemnaia ferritovaia antenna s kombinirovannym serdechnikom [Combined core wideband receive ferrite antenna]: patent rossiiskoi federatcii 2256264, H01Q7/08 (RU). № 2004110863/09; Zaiavleno 2004.04.06.; Opubl. 2005 Jul. 10.

Krymskii VV. Magnitnaia antenna [Magnetic antenna]: A.s. 1681356 SSSR, MKI H01Q 7/06 / (SSSR). № 4349964/09; Zaiavleno 26 Dec. 1987; Opubl. 1991 Sep 30., Biul. №36. S.35. [in Russian].

Ogurtsova TN, Pochanin GP, Kholod PV. Sensitivity of UWB ferrite receiving antennas. Secоnd International Workshop Ultrawideband and Ultrashort Impulse Signals; – 2004 Sep. 19-22; Sevastopol. IEEE; 2004.p. 278-281.

Ogurtsova TN, Pochanin GP, Sidorenko YuB. Excitation of an electromagnetic field pulse in the magnetodielectric cylinder. Telecommunications and Radio Engineering. 2013;72(9):777-789.

Ogurtcova TN. Vybor parametrov ferritovogo elementa dlia impulsnoi SShP priemnoi antenny [Selection of parameters of a ferrite element for a pulse UWB receiving antenna]. Izvestiia vysshikh uchebnykh zavedenii. Radioelektronika. 2016;59(9):27-35. [in Russian].

Taflove A, Hagness S. Computational Electrodynamics: The Finite-Difference Time-Domain Method. 3rd ed. Boston, London: Artech House. 2005. 1038 p.

Bozort R. Ferromagnetizm [Ferromagnetism]. Moskva: Inostrannaia literatura. 1956. 784 p. [in Russian].

Ogurtcova TN, Sidorenko IuB. Vozbuzhdenie potoka magnitnoi induktcii vnutri magnitodielektricheskogo tcilindra [Magnetic induction flux excitation inside a magnetodielectric cylinder]. Radiofizika i elektronika. Kharkov: In-t radiofiziki i elektron. NAN Ukrainy. 2009;14(3):259-266. [in Russian].