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Ku/ka dual-frequency flat antenna and application thereof in portable instant satellite communication system

A flat-panel antenna and dual-frequency technology, applied in the field of mobile satellite communication, can solve the problems of no ku/ka feed network, inconvenience of mobile satellite communication, large volume of parabolic antenna, etc., and achieve strong portability and ease of operation, installation Simple, compact effect

Inactive Publication Date: 2012-10-03
SHANDONG GUOWEI SATELLITE COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned patents cannot simultaneously realize the functions of ku-band linear polarization and ka-band circular polarization, and do not have a good ku / ka feed network, and the isolation is low, so the existing panel antenna can only receive Electromagnetic waves of a single frequency band of ku or ka
Only the parabolic antenna can realize ku / ka dual-frequency feeder and ku / ka dual-frequency reception, but the large size of the parabolic antenna brings a lot of inconvenience to mobile satellite communication

Method used

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  • Ku/ka dual-frequency flat antenna and application thereof in portable instant satellite communication system
  • Ku/ka dual-frequency flat antenna and application thereof in portable instant satellite communication system
  • Ku/ka dual-frequency flat antenna and application thereof in portable instant satellite communication system

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Embodiment 1

[0036] Such as figure 1 Shown: a ku / ka dual-frequency panel antenna, which includes a ku / ka dual-frequency radiator 1, a ku feed and a ka coupling layer 2, a ka feed layer 3 for vertical polarization, and a polarization Separation layer 4 and ka feeding layer 5 for horizontal polarization;

[0037] Such as Figure 2-3 As shown: 2 rows of outer resonant cavities 6 are arranged between the ku / ka dual-frequency radiator 1 and the ku feeding and ka coupling layer 2, each row is provided with 2 outer resonant cavities, and each outer resonant cavity One inner resonant cavity 8 is arranged on the axis, and two outer resonant cavities 6 arranged in the same row are respectively connected to the two ends of the T-shaped feed network 11 through coupling slots 10, and the other end of the T-shaped feed network 11 is set There is a feeding waveguide 12; on the upper surface of the ku / ka dual-frequency radiator 1, and at the position opposite to each inner resonant cavity 8, there are t...

Embodiment 2

[0042] A kind of application of panel antenna as described in embodiment 1 in portable instant satellite communication system, described portable instant satellite communication system comprises ku / ka dual frequency panel antenna 21, frequency converter 22, modem module 24, GPS module 26 and Digital display numerical control module 28, described ku / ka dual-frequency panel antenna 21 is connected with modem module 24 through frequency converter 22 and coaxial data line 23, and described modem module 24 is connected with described GPS module 26 through USB data line 25 The modem module 24 is connected to the digital display numerical control module 28 through the 485 line 27.

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Abstract

The invention relates to a ku / ka dual-frequency flat antenna. Coaxial resonant cavities are adopted in the antenna, each inner resonant cavity is provided with a ka radiating slot, and each outer resonant cavity is provided with a ku radiating slot. Ku linear polarization is realized by arranging the ku radiating slots on a ku / ka dual-frequency radiator, ka circular polarization is realized by arranging the ka radiating slots on the ku / ka dual-frequency radiator to realize two linear polarizations of which the phase difference is 90 degrees, and ku / ka dual-frequency receiving is realized by the flat antenna. The flat antenna is applied to a portable instant satellite communication system, and the flat antenna and a digital display are designed separately, so that the flat antenna realizes plug and play and is high in portability and easy to operate. The high-precision satellite antenna system can work in dual frequency bands of ku and ka, and is particularly suitable for workers of field operation, scientific exploration, rescue and relief, military affairs and police affairs, news and the like.

Description

technical field [0001] The invention relates to a ku / ka dual-frequency panel antenna and its application in a portable instant satellite communication system, which belongs to the technical field of mobile satellite communication. Background technique [0002] Our country has a vast territory, and the communication level and coverage are not yet in place, especially in relatively remote areas such as vast oil fields, mining areas, financial systems, transportation systems, civil aviation systems, frontier defense, islands, and troops, the traditional communication network may not be able to completely cover. Therefore, in the face of emergencies such as disasters, how to realize portable and instant communication has become a technical problem that we must face. [0003] In view of the characteristics of portability, satellite communication systems in this field often use flat-panel antennas for communication: flat-panel antennas are widely used in the field of satellite co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q5/01H01Q13/10H01Q15/24H04B7/185H01Q5/10
Inventor 薛丽丽唐文成杨猛
Owner SHANDONG GUOWEI SATELLITE COMM
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