UDC 612.396.674.1

Two-mirror antenna with the feeder in the form of broadband array antenna with controlled polarization of the radiation field

 

V. V. Golovin, Y. N. Tyschuk

Sevastopol State University, 299053, Sevastopol, Universitetskaya, 33

 

The paper is received on November 29, 2019, after correction - on December 22, 2019

 

Abstract. The broadband feeder of two-mirror Cassegrain antenna in the form of patch radiators array is developed. Theoretical investigations of the patch array antenna characteristics in the frequency bands 10.7 — 12.7 GHz and 13.7 — 14.5 GHz are carried out. It is shown that the patch array forms a field with qualitative characteristics of radiation directivity and polarization structure. At the same time, in the operating frequency bands, the array antenna is characterized by broadband input matching. Taking into account the feeder characteristics, the geometric parameters of the large and small mirrors of Cassegrain antenna are selected. Theoretical investigations of the two-mirror antenna characteristics in the frequency bands 10.7 — 12.7 GHz and 13.7 — 14.5 GHz are presented. It is shown that the developed dual-mirror antenna is characterized by the high gain of 38 — 41 dBi, qualitative linear and circular polarizations, qualitative matching at the patch radiators inputs.

Key words: two-mirror antenna, wideband feeder, patch array antenna, polarization control.

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For citation:

Golovin V.V., Tyschuk Yu.N. Two-mirror antenna with the feeder in the form of broadband array antenna with controlled polarization of the radiation field. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2019. No. 12. Available at http://jre.cplire.ru/jre/dec19/14/text.pdf

DOI  10.30898/1684-1719.2019.12.14