Miniaturized ultra-wideband multifunctional antenna

Abstract

The invention provides a miniaturized ultra-wideband multifunctional antenna, and the antenna comprises a first monopole antenna, a metal floor and a floor dielectric substrate; the first monopole antenna comprises an antenna dielectric substrate, a radiation branch knot and a grounding coupling branch knot, wherein the radiation branch knot and the grounding coupling branch knot are metal microstrip antennas and are laid on the antenna dielectric substrate; the radiation branch knot is coupled with the grounding coupling branch knot; the metal floor is laid on the upper surface of the floor dielectric substrate, the antenna dielectric substrate is perpendicular to the floor dielectric substrate and is connected with the floor dielectric substrate, and the grounding coupling branch knot iselectrically connected with the metal floor. The miniaturized ultra-wideband multifunctional antenna is high in radiation efficiency and high in gain, the radiation branch knot is bent, more resonance modes are generated by the radiation branch knot through the grounding coupling branch knot, and the communication requirement of a 2G / 3G / 4G / 5G full band is met.

Description

technical field [0001] The invention relates to the field of microwave technology, and more specifically, to a miniaturized ultra-wideband multifunctional antenna. Background technique [0002] With the continuous development of wireless communication technology, people have higher and higher requirements for the wireless communication system equipment of automobiles. For wireless communication antennas, covering all communication frequency bands and high-performance radiation performance have become the top priority of research. Heavy. [0003] Today, mobile communication frequency bands mainly include: 824-960MHz, 1710-2690MHz, 3300-5000MHz. The working frequency band of this patent covers the 2G / 3G / 4G / 5G frequency band in the wireless mobile communication frequency band. It is used for the antenna system of vehicle communication. People require it to be miniaturized and maintain high performance as much as possible. With its small size, light weight, easy integration, a...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a miniaturized ultra-wideband multifunctional antenna in order to overcome the shortcomings of the antenna system described in the above-mentioned prior art, such as large size, low radiation efficiency, low gain, and frequency bandwidth that cannot cover 2G / 3G / 4G / 5G frequency bands.

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