L-shaped slit double-bridge multi-frequency antenna

Abstract

The invention relates to an L-shaped slit double-bridge multi-frequency antenna, and belongs to the technical field of antennas. The antenna comprises first and second antenna radiation units and themetal ground; the first antenna radiation unit comprises first, second and third rectangular sheet metal, first and second L groove contained sheet metal, first and second grounding rectangular sheetmetal and a feed structure; and the second antenna radiation unit comprises third, fourth, fifth and sixth rectangular sheet metal. The antenna can obtain working frequency ranges of 1.76-1.94GHz, 2.27-2.44GHz and 2.44-2.66GHz, satisfy bandwidth requirement, obtain stable gain and cover the F, E and D frequency ranges of LTE completely.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an L-shaped slot double-bridge multi-frequency antenna. Background technique [0002] At present, mobile terminal users are increasing rapidly, and new buildings in cities are also constantly rising, which makes the traffic density in buildings continue to rise, and the requirements for signal channels are also constantly improving. However, the building materials used for new buildings have high density and good jammers, which have a great impact on the signal, and have a great impact on the call and Internet experience of mobile terminal users. If the signal coverage of these places where mobile users are relatively concentrated can be improved and users can obtain better terminal service experience, it will be the best of both worlds for mobile users and mobile operators. [0003] In order to solve the problem of indoor signal coverage, the indoor distribution antenna can en...

AI Technical Summary

Problems solved by technology

At present, the indoor distribution antenna mainly adopts the biconical antenna. The biconical antenna has a wide frequency bandwidth and high gain, but its profile is relatively high. On the one hand, it does not meet the trend of miniaturization of various terminal communication equipment. On the other hand, this kind of antenna is mostly installed on the ceiling. , affect the appearance of the house

And it is generally a single frequency band. If it is designed to be multi-band, the height required will increase, which will inevitably lead to an increase in the height of the entire communication equipment.

Microstrip antenna has the advantages of high gain and low profile, but the frequency band is narrow and cannot completely cover the communication frequency band

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