S.D. Kirilyuk

LTD «STC» (St. Petersburg, Russia) 

On purpose to increase efficiency of an orbital-frequency resource the usage of polarization-division multiplexing (PDM) is extended in satellite communication systems.

For this aim the axis ratio (AR) of polarization ellipses on satellite radio lines with circular (rotating) polarization must be not less 0,94.  Nowadays widespread techniques of experimental defining AR, are based on measurements of orthogonal components intensity of electromagnetic fields created by aerials. But, at high, more than 0,85 axis ratios, the information about a difference in components intensity loses on errors of the measurements realizing these techniques. The method of defining AR, close to extremely achievable value (nearly equal to unit) is presented in the article. The basic idea of this method consists in inclusion to the measurement scheme of two identical devices (DUT), working one towards to another. Also the scheme of counter inclusion of two identical DUT, similar used for measurements, may be applied for designing antenna elements with high AR.

Good coincidence of results of modeling, laboratory measurements and field tests have confirmed suitability of the offered method for the designing and testing of aerials with high axis ratio.

Kirilyuk S.D. Method of measuring antenna axis ratio close to unit. Achievements of modern radioelectronics. 2021. V. 75. № 4. P. 80–86. DOI: https://doi.org/10.18127/j20700784-202104-11 [in Russian]

1. Yakubovskiy R.M. Povyshenie effektivnosti ispol'zovaniya energeticheskogo spektra sputnikovykh system. Diss. k.t.n. VlGU – Vladimir. 2019. URL: http://diss.vlsu.ru/uploads/media/disser_yakoubowsky.pdf. [in Russian]
2. Bobkov V., Efimov M., Kiselev A., Nagornov V. Polyarizatsionnaya razvyazka: vzglyad eksperta. Otsenka trebovaniy po krosspolyarizatsionnym kharakteristikam antenn zemnykh stantsiy sputnikovoy svyazi. «CONNECT! Mir svyazi». 2004. № 2. S. 85–89. URL: http://www.rc-tech.ru/content/62/ Connect_ Cross%20Pol.pdf. [in Russian]
3. Kanareykin D.B., Potekhin V.A., Shishkin I.F. Morskaya polyarimetriya. L.: Sudostroenie. 1968. [in Russian]
4. Zashchita ot radiopomekh. Pod red. M.V. Maksimova. M.: Sov. radio. 1976. [in Russian]
5. Antenny ellipticheskoy polyarizatsii: Teoriya i praktika: Sb. Statey. Per. V.A. Libina; red. A.I. Shpuntov. M.: Izd-vo inostr. lit. 1961.  [in Russian]
6. Fradin A.Z., Ryzhkov E.V. Izmereniya parametrov antenno-fidernykh ustroystv. Izd. 2-e, dop. M.: Svyaz'. 1972. [in Russian]
7. A.s. SSSR № 1631460. Sposob izmereniya polyarizatsionnykh kharakteristik antenny. Timoshin B.V., Prokhorenko Yu.I. Opubl. 28.02.1991. [in Russian]
8. Patent RF № 2509316. Sposob opredeleniya polyarizatsionnykh kharakteristik antenn. Vertey S.V. Ionov A.V., Migachev M.I. Byul. 7. Opubl. 10.03.2014. [in Russian]
9. Patent RF № 2715502. Sposob i ustroystvo opredeleniya koeffitsienta elliptichnosti elementov fidera, formiruyushchikh polyarizatsionnye kharakteristiki antenny. Kirilyuk S.D. Byul. 7. Opubl. 28.02.2020. [in Russian]
10. Patent RF № 2741271. Sposob opredeleniya koeffitsienta elliptichnosti antenn. Kirilyuk S.D., Kozhevnikov S.V., Krokhmal' Yu.V., Smirnov P.L., Spiridonov K.A. Byul. 3. Opubl. 22.01.2021. [in Russian]