Portable double-offset-parabola antenna

Abstract

The invention discloses a portable double-offset-parabola antenna which comprises a main reflecting face, an auxiliary reflecting face, a main-reflecting-face supporting device, an auxiliary-reflecting-face fixing device, a feed source system, a feed source supporting device and a servo motor. The main reflecting face is fixed to the main-reflecting-face supporting device, the auxiliary reflecting face is fixed to the main-reflecting-face supporting device through the auxiliary-reflecting-face fixing device, the servo motor is fixed to the position below the main-reflecting-face supporting device, the feed source system is fixed to the main-reflecting-face supporting device through the feed source supporting device, and the main reflecting face is of a transverse elliptic structure, that is, the width of the main reflecting face is larger than the height of the main reflecting face. Compared with an existing Gregory antenna, the performance of the antenna is guaranteed; meanwhile, the portable double-offset-parabola antenna has the advantages that the focal length is small, the caliber is small, a feed source is small, and the performance is excellent; the portable double-offset-parabola antenna has the structural advantages of being simple in structure, light in weight, easy to machine and low in cost.

Description

technical field [0001] The application belongs to the field of satellite communication, and specifically relates to a portable double-biased parabolic antenna which collects satellite signals through double reflectors and processes the satellite signals through a feed source system. Background technique [0002] At present, in satellite communication, in order to improve the cross isolation of the antenna, the portable satellite communication antenna is mostly used as a double-biased Gregorian parabolic antenna. The most commonly used portable satellite communication antennas on the market are 1.2-meter Gregorian double-offset parabolic antennas. The size is relatively large, about 1200*1200*630 (mm), and the vertical length of the antenna is relatively long. The antenna, due to the inherent characteristics of the antenna, is made into a portable backpack antenna, plus the servo system and communication system, the weight of a single bag is greater than 30kg, and it is diffi...

AI Technical Summary

Problems solved by technology

The most commonly used portable satellite communication antennas on the market are 1.2-meter Gregorian double-offset parabolic antennas, which are relatively large in size, about 1200*1200*630 (mm), and the vertical length of the antenna is relatively long. Practice has proved that the use of this caliber The antenna, due to the inherent characteristics of the antenna, is made into a portable backpack antenna, plus the servo system and communication system, the weight of a single bag is greater than 30kg, and it is difficult to carry it in a single bag

[0003] The current satellite antenna usually adopts a vertical ellipse structure. After adopting this structure, although the signal can be collected relatively well to ensure the signal strength; however, due to the structural problems of the vertical ellipse itself, the overall structure of the antenna is relatively large. Inconvenient to carry, especially for satellite antennas for individual communication, it is even more difficult to carry

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