Circular polarization splitters for three-band feed of radiotelescope reflector antenna
DOI:
https://doi.org/10.1109/ICATT.2013.6650682Keywords:
coaxial waveguides, polarizers, circular polarization splitters, septum polarizer, ridged-type phase shifter, phase shifter, ortho-mode transduce, radio telescope reflector antennas, feed aperture unitAbstract
The results of the design and testing of circular polarization splitters (polarizers) of the Ka-, X-, and S-bands, intended for operation as constituent parts of a three-band feed of a radio telescope reflector antenna, are presented. In addition, the results of developing a set of polarizers intended for connecting to waveguide outputs of band-measuring horn antennas are presented. These polarizers are developed to measure the antenna feed patterns on the co- and cross circular polarizations.References
LOPEZ-FERNANDEZ, JOSE ANTONIO. The RAEGE VLBI Radio Telescope. IVS VLBI2010 Workshop on TecSpec, 1-2 Mar. 2012, Bad Kotzting, Germany. 2012.
Equipment at RAEGE stations. RAEGE Project Official Pages, http://www.oan.es/raege/equipment.shtml.
KIRILENKO, A.A.; KULIK, D.Y.; RUD, L.A.; ET AL. Electromagnetic modeling and design of dual-band septum polarizers. Applied Computational Electromagnetics Society J., 2006, v.21, n.2, p.155-163.
KIRILENKO, A.A.; KULIK, D.Y.; RUD, L.A. Compact 90° twist formed by a double-corner-cut square waveguide section. IEEE Trans. Microwave Theory Tech., Jul. 2008, v.56, n.7, p.1633-1637, doi: http://dx.doi.org/10.1109/TMTT.2008.925570.
ARAMAKI, Y.; YONEDA, N.; MIYAZAKI, M.; HORIE, T. Ultra-thin broadband OMT with turnstile junction. IEEE MTT-S Int. Microwave Symp. Dig., 8-13 Jun. 2003, Philadelphia, PA, USA. IEEE, 2003, v.1, p.47-50, doi: http://dx.doi.org/10.1109/MWSYM.2003.1210880.
SRIKANTH, S.; SOLATKA, M.; MEEK, M. Turnstile junction orthomode transducer. X-Band OMT Design Review Meeting, 1 Oct. 2009, AOC, Socorro. 2009.
SRIKANTH, S.; SOLATKA, M. A Compact full waveguide band turnstile junction orthomode transducer. Proc. of 30 URSI General Assembly and Sci. Symp., 13-20 Aug. 2011, Istambul. IEEE, 2011, doi: http://dx.doi.org/10.1109/URSIGASS.2011.6051292.
KIRILENKO, A.A.; KULIK, D.Y.; PRIKOLOTIN, S.A.; RUD, L.A.; STESHENKO, S.A. Stepped approximation technique for designing coaxial waveguide polarizers. Proc. of IX Int. Conf. on Antenna Theory and Techniques, ICATT, 16-20 Sept. 2013, Odessa, Ukraine. IEEE, 2013, p.470-472, doi: http://dx.doi.org/10.1109/ICATT.2013.6650815.
TUCHOLKE, U.; ARNDT, F.; WRIEDT, T. Field theory design of square waveguide iris polarizers. IEEE Trans. Microwave Theory Tech., Jan. 1986, v.34, n.1, p.156-160, doi: http://dx.doi.org/10.1109/TMTT.1986.1133293.
MEDIAVILLA, A.; CANO, J.L.; CEPERO, K. On the octave bandwidth properties of octagonal-shaped waveguide mode transformers. IEEE Trans. Microwave Theory Tech., Oct. 2011, v.59, n.10, p.2447-2451, doi: http://dx.doi.org/10.1109/TMTT.2011.2163077.
