WIDEBAND VOLUME HORN ARRAY ANTENNA WITH SWITCHABLE POLARIZATION CAPABILITY
This paper presents the most valuable theoretical results that confirm the possibility of practical realization of a wideband volume horn array antenna with the switchable polarization capability. Among key features of the proposed antennas are their high stability of switchable linear polarization tilt angle of radiated electromagnetic wave, radiation pattern of sector type and wide operating frequency band. The paper focuses on characteristics of linear horn antenna subarrays as key components of the described volume array antenna. Subarrays fully comprise double-ridge waveguide sections. The cutoff wavenumbers calculation algorithm is developed for the symmetrical double-ridge waveguides to estimate frequency bandwidth of power dividers in their different cross sections. The problem is solved numerically by partial regions method taking into account field singularity on rectangular metal ridges.
Characterization of polarization diversity at the mobile / T. W. C. Brown, S. R. Saunders, S. Stavrou, M. Fiacco // IEEE Transactions on Vehicular Technology. ─ 2007. ─ Vol. 56, N. 5. ─ P. 2440─2447.
Dual-polarized wireless communications: from propagation models to system performance evaluation / C. Oestges, B. Clerckx, M. Guillaud, M. Debbah // IEEE Transactions on Wireless Communications. ─ 2008. ─ Vol. 7, N. 10. ─ P. 4019─4031.
Wide-band linearly or circularly polarized monopulse tracking corrugated horn / B. Du, E. K. N. Yung, K. Z. Yang, W. J. Zhang // IEEE Transactions on Antennas and Propagation. ─ 2002. ─ Vol. 50, N. 2. ─ P. 192─197.
Ultra wideband linear horn array antenna with slant polarization / F. F. Dubrovka, S. Y. Martynyuk, V. V. Marchenko, P. Ya. Stepanenko at al. // Proceedings of International Conference on Antenna Theory and Techniques, May 24─27, 2005, Kyiv, Ukraine. ─ P. 283─286.
Waveguides with complicated cross-sections / G. F. Zargano, V. P. Lapin, V. S. Mikhalevskiy at al. – Moscow: Radio and Communication, 1986. ─ 124 p. [in Russian].
Morse P. M., Feshbach H. Methods of theoretical physics. ─ New York: McGraw Hill, 1953. ─ 1061 p.