Technical Background
As a key equipment for radio applications, antennas have developed with the development of radio application systems such as communications, broadcasting, radar and positioning. In recent years, the popular use of GPS and Beidou has made them more and more widely used in vehicle-mounted, ship-mounted navigation and mobile terminals.
In the positioning and navigation system, the traditional road-based radio navigation system is difficult to support the high-precision positioning, navigation and communication needs in various application fields in modern society due to its limited signal coverage and low positioning accuracy. Especially after disasters such as earthquakes, the traditional road-based radio navigation system is prone to large-scale paralysis, resulting in obstruction of information transmission.
The present technology provides a satellite data transmission antenna, aiming to solve at least one of the technical problems existing in the prior art.
Technical content
The satellite data transmission antenna provided by this technology feeds the conical spiral four-arm satellite communication antenna through the feed plate to excite four signals with equal amplitude and 90° phase difference, so that the axial ratio of the satellite communication antenna is lower, the lobe width is wider, and the gain is higher, thereby achieving the effect of enhancing the low elevation angle performance; and the structure is simple, which greatly reduces the production cost and has stronger market competitiveness.
Application Examples
Refer to Figure 1, a low frequency directional diagram according to an embodiment of the present technology is shown.
Figure 1
Refer to Figure 2 , a high frequency pattern according to an embodiment of the present technology is shown.
Figure 2
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