Miniaturized fractal wideband antenna

Abstract

The invention provides a miniaturized fractal wideband antenna, which realizes the miniaturization and wide band of the antenna under the premise of ensuring the high gain. The antenna comprises a first dielectric substrate and a second dielectric substrate which are arranged at an interval of 4mm up and down, wherein the two dielectric substrates are both made of an FR_4 material, nine uniformlydistributed strip-shaped regular hexagonal radiation copper sheets are printed on the upper surface of the first dielectric substrate, a fractal radiation copper sheet and three strip-shaped microstrip feed copper sheets are printed on the upper surface of the second dielectric substrate, a radiation grounding copper sheet is printed on the lower surface, a ring slot is formed in the center of theradiation grounding copper sheet, and geometric centers of the nine regular hexagonal radiation copper sheets, the first dielectric substrate, the second dielectric substrate and the fractal radiation copper sheet are coaxial. According to the invention, the miniaturization and wide band of the antenna are realized, and the antenna can be applied to the fields of wireless communication, radio frequency identification, microwave energy wireless transmission and the like.

Description

technical field [0001] The invention belongs to the field of antenna structures, and in particular relates to a miniaturized fractal broadband antenna. Background technique [0002] With the rapid development of electronic science and technology, the application of wireless communication technology and its derivatives in real life has become more and more extensive. With the continuous improvement of technology, higher requirements and strict parameter indicators are put forward for the antennas that are indispensable in wireless communication. At the same time, with the continuous development of electronic equipment technology, whether it is civilian wireless communication equipment or military wireless communication equipment, under the premise of high-quality communication, the wireless communication system is required to have both broadband and miniaturization performance. Therefore, in recent years, the research hotspot in the field of antennas has been focusing on min...

AI Technical Summary

Problems solved by technology

[0005] 1. In the prior art, it is impossible to process the energy received by the antenna in an optimal state, so that it can be transmitted with high-gain energy

[0006] 2. The structure of the antenna in the prior art is too simple to provide a wide passband, so that the performance of the antenna cannot reach the best state

[0007] 3. It is difficult to realize the miniaturization and integration of the antenna in the existing technology

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