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A Novel Quadrifilar Helical Antenna

A four-arm helix and antenna technology, which is applied in the direction of antenna, antenna grounding switch structure connection, electrical components, etc., can solve problems such as difficult to meet application requirements, and achieve the effects of avoiding design complexity, better performance and function, and novel antenna solutions

Active Publication Date: 2020-08-14
XIAN INSTITUE OF SPACE RADIO TECH
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  • Summary
  • Abstract
  • 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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  • A Novel Quadrifilar Helical Antenna
  • A Novel Quadrifilar Helical Antenna
  • A 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 ribbon 1, a balun structure 2, a helical support medium 3, a cable 4, and an amplitude-phase output circuit 5. The input ends of the amplitude-phase output circuit 5 are respectively excited by the signal The port and the signal load port are connected, the output end is connected to one end of the cable 4, the cable 4 is arranged inside the spiral support medium 3, and passes through the spiral support medium along the center line of the spiral support medium 3. The balun structure 2 is set on the spiral support medium 3 At the top, the other end of the cable 4 is connected to the balun structure 2. The dual-frequency spiral belt 1 is arranged on the outer surface of the spiral support medium, and the balun structure 2 is connected to the dual-frequency spiral belt through the feed screw connection, and the antenna signal passes The signal excitation port is sent to the am...

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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 requirements for the functions that can be completed by wireless systems, and the performance requirements are becoming more and more demanding. This requires the antenna in the system or equipment to have the ability to achieve multiple functions Or it can achieve corresponding performance indicators according to different applications. Only by increasing the number of antennas to increase antenna functions or performance can no longer meet the requirements of higher integration and more and more diverse satellite ground equipment or mobile terminals. The need for multi-mode working capabilities or the need for multi-mode working antenna technology is becoming more and more urgent, and the development of mult...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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