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Novel quadrifilar helical antenna

A four-arm helix and antenna technology, applied in the field of new four-arm helix antennas, can solve problems such as difficult to meet application requirements, and achieve the effects of avoiding design complexity, better performance and function, strong practicability and technical competitiveness

Active Publication Date: 2018-03-23
XIAN INSTITUE OF SPACE RADIO TECH
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the human-machine combination application scenario of satellite communication terminal, the change of the pointing of the satellite communication terminal requires the antenna to have wide beam switching capability, and keep the antenna polarization unchanged to achieve continuous reception and transmission of the same communication signal. The existing satellite communication terminal antenna is due to Its implementation principle is difficult to meet the application requirements

Method used

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  • Novel quadrifilar helical antenna

Examples

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Embodiment Construction

[0031] Such as figure 1 As shown, a new type of four-arm helical antenna includes a dual-frequency helical strip 1, a balun structure 2, a helical support medium 3, a cable 4, and an amplitude-phase output circuit 5. The input terminals of the amplitude-phase output circuit 5 are respectively connected to the signal excitation The port is connected to the signal load port, the output end is connected to one end of the cable 4, the cable 4 is set inside the spiral support medium 3, and passes through the spiral support medium along the centerline of the spiral support medium 3, and the balun structure 2 is set on the spiral support medium 3, the other end of the cable 4 is connected to the balun structure 2, the dual-frequency spiral strip 1 is set on the outer surface of the spiral support medium, the balun structure 2 is connected to the dual-frequency spiral strip through the feeding spiral contact, and the antenna signal passes through The signal excitation port is sent to ...

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Abstract

A novel quadrifilar helical antenna comprises a double-frequency helical tape (1), a balun structure (2), a helical supporting medium (3), a cable (4) and an amplitude-and-phase output circuit (5). The novel quadrifilar helical antenna is used for settling a problem of realizing unchanged antenna polarization in wave beam pointing reversing, wherein unchanged antenna polarization cannot be realized by an existing satellite communication terminal antenna. Furthermore the quadrifilar helical antenna can realize continuous receiving and transmission of the same communication signal. The quadrifilar helical antenna can satisfy a requirement for man-machine combination of the satellite communication terminal. The quadrifilar helical antenna settles a problem of no broad wave beam switching capability in a satellite communication terminal environment and furthermore can satisfy a requirement for multi-mode operation capability of the antenna by a system. Furthermore the novel quadrifilar helical antenna has advantages of high reliability and wide application range.

Description

technical field [0001] The invention relates to a novel four-arm helical antenna, which belongs to the technical field of antennas. Background technique [0002] With the continuous development of antenna technology and satellite ground applications, there are more and more functional requirements for wireless systems, and more and more stringent performance requirements, which requires the antenna in the system or equipment to have the ability to achieve multiple functions Or it can realize the corresponding performance indicators according to different applications. Only by increasing the number of antennas to increase the antenna function or performance can no longer meet the requirements of increasingly higher integration and more diverse functions. The need for multi-mode working capabilities is becoming more and more urgent, and the development of multi-mode working antenna technology is a way to enhance antenna capabilities and meet the challenges of complex electroma...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50H01Q13/08
CPCH01Q1/36H01Q1/38H01Q1/50H01Q13/08
Inventor 张明涛李秋虹迟礼东
Owner XIAN INSTITUE OF SPACE RADIO TECH
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