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Satellite-borne multi-beam reflector antenna forming method based on bat algorithm

A bat algorithm and reflective surface technology, applied to antennas, electrical components, etc., can solve the problem of many function expansion coefficients, and achieve the effects of saving optimization time, improving optimization efficiency, and simple operation

Active Publication Date: 2016-01-06
NANJING UNIV OF SCI & TECH +2
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Problems solved by technology

These methods can directly obtain the shape of the reflective surface after optimization, and the reflective surface is smooth and continuous, but the direct method has many function expansion coefficients, so it is necessary to choose a robust optimization algorithm

Method used

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  • Satellite-borne multi-beam reflector antenna forming method based on bat algorithm
  • Satellite-borne multi-beam reflector antenna forming method based on bat algorithm
  • Satellite-borne multi-beam reflector antenna forming method based on bat algorithm

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Embodiment 1

[0092] In order to verify the correctness and effectiveness of the method in this paper, the paraboloid parameters analyzed below are focal length F=3.6m, aperture D=2.0m, center offset height H=1.8m, 25 horn feed sources, frequency f=11GHz, feed source The form adopts multi-mode conical horn, and the polarization mode is left-handed circular polarization. The optimization investigation points are as follows: Figure 6 shown.

[0093] Schematic diagram of beam coverage, with a gain of 34.5dBi and a beam width of 1.85°. From the above results, it can be seen that the shape optimized by the shape-forming method of the space-borne multi-beam reflector antenna based on the bat algorithm can meet the high-gain index requirements, thus verifying the practicability and universality of the method. This also fully proves the effectiveness of the shaping method of the spaceborne multi-beam reflector antenna based on the bat algorithm.

[0094] In summary, the present invention is base...

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Abstract

The invention discloses a satellite-borne multi-beam reflector antenna forming method based on a bat algorithm, comprising the steps as follows: selecting the reflector size and feed source position according to the shape of a multi-beam coverage area; deploying a reflector antenna based on a multi-focus reflector equation; and introducing a bat algorithm to optimize the parameters of the multi-focus reflector equation, and accelerating a physical optics method through a GPU to calculate the pattern of the reflector antenna. According to the invention, the designed parameters are all optimized, and the computation time is reduced on the premise of guarantee accuracy.

Description

technical field [0001] The invention belongs to the technical field of reflector antennas, in particular to a method for shaping a space-borne multi-beam reflector antenna based on a bat algorithm. Background technique [0002] Satellite communication is a new technology combining aerospace technology and communication technology. It provides information transmission and communication services for human beings in a new way. It affects and changes human production and activities. It has developed rapidly in recent years. From From fixed satellite services to mobile personal communications, communication with anyone, anywhere, anytime is possible. Satellite communication is the communication between ground terminal stations using satellites as relays. Its system consists of satellites and ground terminal stations, and it belongs to the wireless communication method. Satellite communication has many advantages, such as large communication capacity, wide coverage, low cost, con...

Claims

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Application Information

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IPC IPC(8): H01Q19/10
Inventor 陈如山丁大志樊振宏吴春邦丁伟陶啸张慧玲
Owner NANJING UNIV OF SCI & TECH
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