Oscillator antenna

Abstract

The invention discloses an oscillator antenna, which comprises a radiation sheet, a feed network and a substrate, the radiation sheet comprises four ship-shaped holes; the feed network comprises two differential lines and four L-shaped lines; every two L-shaped circuits are combined and connected through the differential circuits; the L-shaped lines are distributed below the connecting positions of the adjacent ship-shaped open holes in a one-to-one correspondence mode. The L-shaped circuit and the radiation sheet are coupled with each other; the feed network is attached to the surface of the substrate; the substrate is connected with the radiation sheet; the height of the antenna is reduced and the bandwidth is improved through the ship-shaped opening, and coupling between the oscillators can be reduced, so that the cross polarization ratio and the front-to-back ratio of the antenna can be improved, meanwhile, the radiation sheet is matched to adopt differential L-shaped coupling feeding, the antenna isolation can be improved, the gain, the bandwidth, the front-to-back ratio of the antenna and the cross polarization ratio are further improved, the height of the antenna is further reduced, so that the electrical performance of the antenna is improved, and the 5G communication requirement is met.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a dipole antenna. Background technique [0002] After entering the 5G era, on the one hand, as the frequency band of the 5G network moves up, the coverage capability of a single base station will weaken, resulting in an increase in the number of base stations and a significant increase in the number of antennas used. It is predicted that the total number of 5G base stations will be 1.3 to 1.5 times the number of 4G base stations. The number of vibrators contained in the antenna will be greatly increased, from 2-18 vibrators in the original antenna, to 64, 128, or even 256. In the prior art, the use of metal materials to make vibrator antennas will lead to a significant increase in weight , which leads to problems such as high cost and inconvenient installation; on the other hand, the 5G operating frequency is getting higher and higher, the wavelength is getting shorter and shorter, and th...

AI Technical Summary

Problems solved by technology

[0002] After entering the 5G era, on the one hand, as the frequency band of the 5G network moves up, the coverage capability of a single base station will weaken, resulting in an increase in the number of base stations and a significant increase in the number of antennas used. It is predicted that the total number of 5G base stations will be 1.3 to 1.5 times the number of 4G base stations. The number of vibrators contained in the antenna will be greatly increased, from 2-18 vibrators in the original antenna, to 64, 128, or even 256. In the prior art, the use of metal materials to make vibrator antennas will lead to a significant increase in weight , which leads to problems such as high cost and inconvenient installation; on the other hand, the 5G operating frequency is getting higher and higher, the wavelength is getting shorter and shorter, and the requirements for the dimensional accuracy of the oscillator are getting higher and higher, and the 5G communication rate is higher. Traditional The electrical performance of the vibrator can no longer meet the radiation performance requirements of 5G antennas

[0003] Therefore, with the development of 5G, the weight, cost and electrical performance of traditional dipole antennas are facing great challenges

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