Anti-transmission integrated multifunctional planar air-fed array antenna and wireless communication system

Abstract

The invention belongs to the technical field of antennas and discloses an anti-transmission integrated multifunctional planar air-fed array antenna and a wireless communication system. A Vivaldi antenna is a feed source of a planar air-fed array antenna; a cross vibrator with a four-layer structure is adopted as an array unit, and a double-circular ring-shaped frequency selection surface is loadedat the bottom end of the array unit; the planar array is formed by periodically arranging cross vibrator units with different sizes and double-circular ring-shaped frequency selection surface units with the same size, and units on the array compensates phases with each other in a mode of adjusting the sizes of the cross vibrators. According to the invention, four layers of cross vibrators loadedwith double-circular ring-shaped frequency selection surfaces are used as the array units, and the four layers of cross vibrators have different anti-transmission characteristics in different frequency bands; by adjusting the size of the cross vibrator on each unit on the array; the front (rear) high gain radiation beams are respectively achieved in the high (low) frequency band, and the functionsof a planar reflection array antenna and planar transmission array antenna are effectively integrated on the same antenna.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to an anti-transmission integrated multifunctional planar space-fed array antenna and a wireless communication system. Background technique [0002] At present, the commonly used existing technology in the industry is as follows: the planar air-fed array antenna is a new type of high-speed antenna formed by combining the advantages of the traditional curved surface air-fed antenna (including reflector antenna and dielectric lens antenna) and the planar microstrip array antenna. The booster antenna is mainly composed of a planar printed array and a feed antenna, where the feed antenna is usually placed at the focal point of the planar printed array. On the surface of the array, there are several radiating units with independent phase adjustment capability. Through appropriate phase compensation for each unit on the array, the incident spherical electromagnetic waves emit...

AI Technical Summary

Problems solved by technology

[0005] To sum up, the problems existing in the existing technology are: With the intelligentization of wireless communication systems and the increasing popularity of frequency diversity technology, remote communication systems urgently require a planar space-fed array antenna that can integrate planar reflectarray antennas and planar transmission The function of the array antenna is integrated to realize the flexible control of the antenna radiation direction, so that the antenna can be applied to a variety of different telecommunication systems at the same time, but it is very difficult to achieve this requirement through existing methods and technologies, and only one-way high-gain radiation can be realized.

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