Dual-frequency four-arm spiral antenna and communication equipment

A four-armed helix and antenna technology, which is applied to the structural connection of the antenna, the antenna grounding switch, and the device that enables the antenna to work in different frequency bands at the same time, can solve the problems such as the inability to meet the requirements of miniaturization of the antenna and the large size, and achieves a beneficial effect. The effect of miniaturization, small size, and reduced side space requirements

Inactive Publication Date: 2020-02-21
SZ DJI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the size of the dual-frequency quadrifilar helical antenna with the above structure is relatively large, which cannot meet the miniaturization requirements of the antenna.

Method used

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  • Dual-frequency four-arm spiral antenna and communication equipment
  • Dual-frequency four-arm spiral antenna and communication equipment
  • Dual-frequency four-arm spiral antenna and communication equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] figure 1 A schematic structural diagram of a dual-frequency quadrifilar helical antenna provided by an embodiment of the present invention; figure 2 for figure 1 top view of image 3 for figure 1 main view of Figure 4 A schematic structural diagram of a printed circuit board provided by an embodiment of the present invention; please refer to Figure 1-Figure 4 . This embodiment provides a dual-frequency quadrifilar helical antenna, which includes a printed circuit board 100 and an antenna bearing part 200 arranged on the printed circuit board 100. The surface of the antenna bearing part 200 is provided with four sets of helical arm units with the same structure. 300, each group of helical arm units 300 is electrically connected to the printed circuit board 100; the helical arm units 300 extend upward from the lower end of the side of the antenna bearing part 200, and at least part of the helical arm units 300 are arranged on the top surface of the antenna bearing...

Embodiment 2

[0057] This embodiment provides a communication device, including the dual-frequency quadrifilar helical antenna described in Embodiment 1.

[0058] The communication device of this embodiment is equipped with the dual-frequency quadrifilar helical antenna described in the first embodiment above, so it can be matched with different positioning systems, has high positioning accuracy and stability, and the helical antenna has relatively high Small size, so that the overall size of the communication device can be reduced.

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Abstract

The present invention provides a dual-band four-arm spiral antenna and communication equipment. The spiral antenna includes a printed circuit board and an antenna bearing portion provided on the printed circuit board. The surface of the antenna bearing portion is provided with four sets of spiral arm units having the same structure. Each set of spiral arm units is electrically connected to the printed circuit board; the spiral arm units extend upward from the lower end of the side of the antenna bearing portion, and at least part of the spiral arm units are arranged on the top surface of the antenna bearing portion; The spiral direction of the spiral arm unit on the top surface of the antenna bearing portion is the same as that of the spiral arm unit on the side of the antenna bearing portion. In the present invention, a part of the spiral arm unit is arranged on the top surface of the antenna bearing portion, and the head space of the antenna bearing portion is fully utilized. On thepremise of ensuring the performance of the spiral arm unit antenna, the demand for the side space of the antenna bearing portion is reduced. As a result, the height of the antenna bearing portion is reduced, that is, the height of the entire helical antenna is reduced, the size of the antenna is reduced, and the miniaturization of the antenna is facilitated.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of communication antennas, in particular to a dual-frequency quadrifilar helical antenna and communication equipment. Background technique [0002] In the field of wireless communication, the global satellite navigation system has a wide range of applications in various aspects. Compared with a single satellite navigation system, the global satellite navigation system has a wide coverage, high navigation accuracy and stable operation, which has become the current trend of navigation development. At present, in the field of wireless communication, dual-frequency quadrifilar helical antennas are widely used to realize data connection between communication equipment and global satellite navigation systems. [0003] In the prior art, the dual-frequency four-arm helical antenna can be formed by stacking two single-frequency four-arm helical antennas up and down or nested inside and outside; ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H01Q1/36H01Q1/50H01Q5/10H01Q5/20H01Q5/35
CPCH01Q1/36H01Q1/50H01Q5/10H01Q5/20H01Q5/35
Inventor吕超叶璐尹航
OwnerSZ DJI TECH CO LTD