Vertical polarization C-waveband broadband short backfire antenna

Abstract

The invention provides a vertical polarization C-waveband broadband short backfire antenna. The opening end of a reflection cavity is sealed by a reflection substrate; a radiation foundation plate, a media matrix and a radiation antenna substrate are arranged in the reflection cavity; one side, which faces the reflection cavity, of the reflection substrate is etched with a round reflection array element; the center of one side, which faces the reflection substrate, of the radiation antenna substrate is etched with a square metal patch; the small-diameter section of a parasitic array successively passes through the radiation antenna substrate, the media matrix and the radiation foundation plate and is supported on the bottom of the reflection cavity, and the big-diameter section of the parasitic array is positioned on one side, which faces towards the reflection substrate, of the radiation antenna substrate; a radio frequency connection piece successively penetrates through the radiation foundation plate, the media matrix and the radiation antenna substrate from the bottom of the reflection cavity and is connected with the metal patch of a radiation antenna array element. The vertical polarization C-waveband broadband short backfire antenna achieves the requirements of wide main valve, low accessory valve, simple structure, convenience in carrying, miniaturization and broadband work, and can be used for ground base station communication, ground tracking guidance communication and anti-jamming communication systems.

Description

technical field [0001] The invention belongs to the technical field of radar and communication antennas, and in particular relates to a short backfiring antenna. Background technique [0002] At present, in mobile data communication transmission, ground anti-interference communication and measurement, control and tracking systems, the front-end antennas are mostly in the form of vertically polarized antennas, such as Yagi antennas, Franklin antennas, planar microstrip antennas, and reflector antennas. These antennas often have problems such as large antenna size, complex antenna feed system matching, complex engineering debugging process, and high processing costs. In the field of mobile communications such as airborne and high-speed trains and high-precision direction-finding systems, in order to extend the communication distance and suppress the multipath interference of ground communications, and to meet the characteristics of miniaturization, easy production and installa...

AI Technical Summary

Problems solved by technology

However, in the literature, only the role of the parasitic element in the short backfiring antenna is discussed in principle, and the inclination angle of the inclined coupling line and the installation and fixing method are difficult to meet the simple, strong and durable engineering design requirements, and In its design, the method of installing and fixing the reflector through a support rod will affect the radiation, feeding and installation of the antenna, and it is not convenient for engineering applications

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