Synthesis and investigation of an ultra-wideband planar waveguide three-focal constrained lens-mirror system

V. A. Kaloshin, H. D. Ngiyem, E. V. Frolova
Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Mokhovaya str. 11-7, Moscow 125009, Russia

 

The paper is received on December 26, 2017

 

Abstract. The paper considers a two-floor waveguide three-focal mirror-lens system. In the first part of the paper, problems of synthesis and minimization of aberrations of a three-focal two-dimensional constrained lens with the same length of lines connecting the input and output surfaces of the lens are considered. The aberrations of the synthesized three-focal lens-mirror system are compared with the aberrations of the three-focal lenses Ruze and Rotman, synthesized for angles of 60 and 120 degrees. In the second part of the work, an analysis of the broadband and scanning properties of a planar two-floor multi-beam antenna based on the synthesized system was carried out. The results of the experiment at three frequencies of 45, 60 and 75 GHz confirm  the broadband properties of the antenna, which are provided by an identical length of the waveguides of the synthesized three-focal lens-mirror system. The scanning properties of the antenna are confirmed by the results of the experiment for beams that are deflected by 30 and 60 degrees.

Keywords: antennas, ultra-wideband, multi-beam, mirror, constrained lens, planar.

References

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For citation:
V. A. Kaloshin, H. D. Ngiyem, E. V. Frolova. Synthesis and investigation of an ultra-wideband planar waveguide three-focal constrained lens-mirror system. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2018. No. 1. Available at http://jre.cplire.ru/jre/jan18/3/text.pdf.

DOI  10.30898/1684-1719-2018-1-4