Yu.V. Krylov - Design Engineer, JSC Academician M.F. Reshetnev «ISS» (Zheleznogorsk). E-mail: krylov_yuriy@inbox.ru

The principles of work orthomode transducer based on the cross-coupler for separate the orthogonal modes in a waveguide of circular cross section are presented. The possibility of reducing the transverse dimensions of the device by changing the number of orthogonal arms in the transition region of the waveguide of circular cross section of larger diameter to the smaller diameter of waveguide was investigated. The research of suppression orthogonal mode reverse channels orthomode transducer has been shown that the simple orthogonal separation modes without separation into two symmetrical channel does not provide additional isolation between these modes. Also dependent effect was demonstrated orthogonal arms selector structure at its electrical characteristics, namely, the width of the operating frequency band.

 

1. Krylov JU.V., Danilov I.JU., Vygonskijj JU.G., Romanov A.G. Kompaktnyjj obluchatel Ka/Q‑diapazona krugovojj poljarizacii // Naukoemkie tekhnologii. 2015. № 3(16). S. 52−55.
2. Krylov JU.V. CHastotno-poljarizacionnaja selekcija signalov v rupornykh obluchajushhikh sistemakh zerkalnykh antenn // Issledovanija naukograda. 2015. № 2. S. 5−9.
3. Krylov JU.V., Tajjgin V.B. Proektirovanie obluchatelja v Ka/Q‑diapazone na osnove «vosstanavlivajushhejj» skhemy // Vestnik SibGAU. 2015. № 2(16). S. 417−422.
4. Nelson J.G. Fonseca and Peter Rinous Compact orthomode power divider for high-efficiency dual-polarisation rectangular horn antennas // Antenna and Sub-Millimetre Wave Section, European Space Agency, Noordwijk, The Netherlands. 2009.
5. Gordon M. Coutts Wideband diagonal quadruple-ridge orthomode transducer for circular polarization detection // IEEE Transactions on antennas and propagation. June 2011. V. 59. № 6.
6. Gopal Narayanan, Neal R. Erickson A Novel Full Waveguide Band Orthomode Transduser // Thirteenth International Symposium on Space Terahertz Technology, Harvard University. March 2002. P. 505−514.
7. Ludovico et al. CAD and Optimization of Compact Ortho-Mode Transducers // IEEE Trans. Microwave Theory Tech. December 1999. V. 47. № 12. P. 2479−2486.
8. Ignacio Izquierdo Martinez, Jorge A. Ruiz Cruz Design of wideband orthomode transducers based on the turnstile junction for satellite communications // Universidad Autunoma de Madrid. November 2008. P. 33−36.