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A top-loaded sleeve antenna for uav

A technology for loading sleeves and antennas, which is applied to the structural connection of antennas, antenna grounding devices, and antenna grounding switches. It can solve the problems of complex design, low-profile antennas, and simultaneous coverage, etc., and achieve moderate production costs and good market prospects. , moderately priced effect

Active Publication Date: 2022-01-04
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above antennas often cannot achieve a low profile, the design is complex, and they cannot cover the three frequency bands of 840.5-845MHz, 1430-1444MHz, and 0.96-1.164GHz at the same time

Method used

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  • A top-loaded sleeve antenna for uav
  • A top-loaded sleeve antenna for uav
  • A top-loaded sleeve antenna for uav

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Embodiment Construction

[0029] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings, and this embodiment does not constitute a limitation to the present invention.

[0030] Such as figure 1 and figure 2 As shown, the antenna is a top-loaded sleeve antenna with a disc-cone structure, with an overall height of 26.6mm and a maximum radius of 82mm, including a circular floor 1 with a radius of 82mm, and a sleeve monopole antenna 2 connected to the floor 1. The bottom radius of the sleeve monopole antenna 2 is 8.5mm, and the height is 6.5mm. The sleeve monopole antenna 2 is made of FR4 dielectric substrate, so that the antenna has a resonance point below -10dB at 1.4GHz.

[0031] Such as figure 1 As shown, the top of the sleeve monopole antenna 2 is connected with a top load, and the top load includes an upper disc 3 with a radius of 82 mm and a disc cone 31 with a large end upwards from top to bottom. The length of t...

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Abstract

The invention discloses a top-loaded sleeve antenna applied to UAVs, relates to the technical field of antennas, and solves the problems that the existing antennas often cannot achieve low profiles, are complex in design and have insufficient frequency bands. It includes a floor on which a sleeve monopole antenna is connected; the top of the sleeve monopole antenna is connected with a top loading, and the top loading includes an upper disk and a disk cone with the big end facing up from top to bottom. A number of short-circuit columns are connected between the bottom plate and the upper disc to increase the resonance point of the antenna at a low frequency; an annular groove is opened on the upper surface of the upper disc to increase the bandwidth of the antenna and move the entire working frequency band to the low frequency. The effect of low profile, miniaturization and wide frequency band of the antenna is achieved.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a top-loaded sleeve antenna applied to UAVs. Background technique [0002] According to my country's "Regulations on Radio Frequency Allocation of the People's Republic of China" and the use of spectrum in China, the frequency bands 840.5-845MHz, 1430-1444MHz and 2408-2440MHz are planned for unmanned aircraft systems, and the frequency band 2408-2440MHz is used as a backup frequency band. Antennas applied to UAV (Unmanned Aerial Vehicle) can achieve low profile, miniaturization and wide frequency band are the problems that need to be solved urgently in the current design. At present, the antenna applied to UAV hopes to cover the two frequency bands of 840.5-845MHz and 1430-1444MHz. And has horizontal omnidirectionality. Internationally, 0.96-1.164GHz is used for terrestrial line-of-sight communication for UAV services. [0003] The above-mentioned antennas often cannot achieve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/22H01Q1/36H01Q1/38H01Q1/48H01Q1/50H01Q5/30
CPCH01Q1/50H01Q1/48H01Q1/22H01Q1/36H01Q1/38H01Q5/30
Inventor 杨凌升徐诗豪徐敏
Owner NANJING UNIV OF INFORMATION SCI & TECH
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