Concept of antenna arrays beamforming based on hologram diffraction gratings

 

Zlata Gibalina, Vladimir Fadeev

Kazan National Research Technical University named after A.N.Tupolev, 10 Karl Marx Str., Kazan 420111, Russia

 

The paper is received on November 22, 2017

 

Abstract. This research work is the part of discussion about possibility of the beamforming on the base of optical principles. For a long time the most popular way of the beamforming in phased antenna arrays was a phased shift using analog components. This type of phase shifters has several disadvantages such as relatively low performance and electromagnetic interference. These disadvantages can theoretically be resolved by the implementation of photonic technologies. Works in this branch of research typically describe possibilities of using solutions based on Fiber Grating Prism that is the one of the most promising ways to replace analog phased shifters. However, other possibilities should be also observed. Perspective of diffraction grating were described even in 1980’s, this field of nanotechnologies was significantly developed during previous years and now we can discuss it in the context of phased antenna arrays. The main idea contains possibilities of diffraction grating for information storage that can be used for storage of phase distributions. Theoretically, this approach can increase the performance and decrease the number of elements in construction. Implementation of this nanotechnology may be useful for strictly limited equipment such as e.g. micro satellites. The main goal of this paper is to show the main advantages and disadvantages of represented concept. The main points for modeling are also described in this work.

Key words: optical communication, phased antenna arrays, diffraction gratings.

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For citation:

Zlata Gibalina, Vladimir Fadeev. Concept of antenna arrays beamforming based on the hologram diffraction gratings. Zhurnal Radioelektroniki - Journal of Radio Electronics, 2017, No. 12. Available at http://jre.cplire.ru/jre/dec17/2/text.pdf. (In Russian)