Transceiving antenna of satellite communication handheld terminal

Abstract

The invention discloses a transceiving antenna of a satellite communication handheld terminal. The transceiving antenna comprises a dielectric body, an antenna radiation body, and a feeding module, wherein the antenna radiation body adopts a spiral structure and comprises four groups of spiral arms, among which the phase position difference is 90 DEG; the dielectric body adopts a column structure; the antenna radiation body is arranged on the outer surface of the dielectric body through laser etching; the tops of the four groups of the spiral arms are in shorted connection with one another, and the four groups of the spiral arms are arranged at equal intervals; each group of the spiral arms comprise high-frequency spiral arms and a low-frequency spiral arm, of which the bottoms are connected with one another; the feeding module is arranged inside the lower end of the dielectric body, and is connected with all the four groups of the spiral arms; and a spray paint layer is arranged on the surface of the dielectric body through spraying, and the antenna radiation body is covered by the spray paint layer. The invention relates to the field of mobile communication. Compared with the traditional FPC antenna, the transceiving antenna provided by the invention has the advantages that the antenna radiation body is directly arranged on the surface of the dielectric body through laser etching, so that space can be more effectively utilized, and miniaturization can be achieved.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a satellite communication antenna. Background technique [0002] The first star of my country's satellite mobile communication system developed by the Fifth Academy of Aerospace Science and Technology Corporation, known as the Chinese version of the Maritime Satellite Tiantong-101, was successfully lifted off at the Xichang Satellite Launch Center and entered a distance of about 36,000 from the earth. km geosynchronous orbit, marking my country's entry into the "mobile phone era 0" of satellite mobile communications. The primary task of the development of Tiantong-1 is to ensure emergency communications when my country suffers from severe natural disasters, and to fill the gap in national civil and commercial independent satellite mobile communication services. [0003] Tiantong-1 01 satellite is a large-capacity geosynchronous orbit mobile communication satellite, which can p...

AI Technical Summary

Problems solved by technology

[0004] At present, the traditional dual-frequency multi-arm helical antenna is generally an FPC antenna. First, the incoming material of the FPC antenna is unstable, and the thickness may be uneven, which makes it impossible to mass-produce; secondly, the multi-arm helical antenna using the FPC antenna needs to add an additional shell. Keep a certain distance between the FPC and the housing, otherwise it will have a great impact on the performance of the antenna, and the size of the entire antenna of the housing becomes much larger, which is not conducive to miniaturization

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