LEO Satellite Communication Switching Device Based on Lunberg Lens Antenna
A technology of Lunberg lens antenna and satellite communication, which is applied in the field of satellite communication to achieve the effect of ensuring continuity and shortening communication interruption time.
Active Publication Date: 2020-12-08
SICHUAN JIUZHOU ELECTRIC GROUP
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is the technical problem that the current low-orbit satellite communication system cannot realize simultaneous tracking of two satellites, high antenna efficiency, small size and low cost
Method used
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Embodiment 1
[0051] Such as Figure 1-Figure 2 As shown, the present invention provides a low-orbit satellite communication switching device based on a Lunberg lens antenna, which includes a Lunberg lens antenna body, an active star tracking device and a successor star tracking device. Specifically, the Luneburg lens antenna body in this embodiment includes a hemispherical Luneburg lens and a reflector. By installing the hemispherical Luneburg lens on the reflector, the hemispherical Luneburg lens has a spherically symmetrical structure, so that the satellite beam can point to Any direction, and there is no defocus problem.
[0052] Among them, the active star tracking device is used to adjust the tracking direction based on the focus of the active star on the Lunberg lens antenna body, so as to track the active star in real time.
[0053] Wherein, the in-service star tracking device refers to the device for tracking the in-use star, specifically including the in-use star feed source, the...
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The invention discloses a low-orbit satellite communication switching device based on a luneberg lens antenna. The device comprises a luneberg lens antenna body, an in-use star tracking device and a subsequent star tracking device, wherein the in-use satellite tracking device is used for adjusting the tracking direction based on the focus of the in-use satellite on the luneberg lens antenna body so as to track the in-use satellite in real time; the subsequent star tracking device is used for adjusting the tracking direction based on the focus of the subsequent star on the Luneberg lens antennabody so as to track the subsequent star in real time; when the in-use star exceeds the tracking range of the in-use star tracking device, the subsequent star is used as a new in-use star, the subsequent star tracking device is used as a new in-use star tracking device, the satellite tracking device is used as a new subsequent satellite tracking device to continuously track the next satellite, andthe next satellite is used as a new subsequent satellite, so that the switching of tracking different satellites by using the satellite tracking device and the subsequent satellite tracking device isrealized, the communication interruption time is shortened, and the communication continuity is ensured.
Description
technical field [0001] The invention relates to the technical field of satellite communication, in particular to a low-orbit satellite communication switching device based on a Luneberg lens antenna. Background technique [0002] Compared with geostationary geostationary (GEO) satellites, the low-orbit satellite communication system provides shorter transmission delay and smaller path loss. As an important supplementary method of ground communication, the low-orbit satellite communication system can achieve true global coverage. At present, low-orbit satellite communication systems mainly use parabolic antennas and flat panel antennas, and a small part of them use phased array antennas. Among them, both the parabolic antenna and the flat-panel antenna are one-sided antennas, and one antenna can only track one satellite. It can only wait for the satellite in use to go out of the tracking range, and then use mechanical rotation to find the next satellite that enters the tracki...
Claims
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IPC IPC(8): H04B7/185
CPCH04B7/1851H04B7/18519H04B7/18558H04B7/18571
Inventor 魏裕磊黄健杨其聪何华卫
Owner SICHUAN JIUZHOU ELECTRIC GROUP