High-gain end-fire circularly polarized antenna based on artificial surface plasmons

Abstract

The invention provides a high-gain end-fire circularly polarized antenna based on artificial surface plasmons, which includes a dielectric substrate and a microstrip line, the microstrip line is arranged on the upper surface of the dielectric substrate, and also includes an edge-wrapped metal coating and a magnetic attraction The upper surface of the dielectric substrate is provided with an upper metal transmission line, an upper electric dipole and an upper electric director, and the edge-wrapped metal cladding surrounds the dielectric substrate, and the top side of the edge-wrapped metal cladding is connected to the microstrip line. The other side of the top of the side metal cladding forms a magnetic dipole and is connected to the upper metal transmission line. The two sides of the upper metal transmission line are respectively equipped with magnetic directors. The lower surface of the dielectric substrate is equipped with a lower metal transmission line and a lower electric dipole. and the lower electrical director, the upper metal transmission line and the lower metal transmission line respectively use artificial surface plasmon transmission lines; it can significantly improve the gain of the end-fire circularly polarized antenna, and solve the problem of low circularly polarized gain when the end-fire antenna is applied problem, and the radiation directionality is good.

Description

technical field [0001] The invention relates to a high-gain end-fired circularly polarized antenna based on artificial surface plasmons, which belongs to the field of microwave antennas. Background technique [0002] In the research of wireless communication, especially in the field of national defense and military industry, the requirements for attenuation of electromagnetic waves are becoming more and more stringent, and the ability of circularly polarized waves to resist attenuation is relatively strong, so a large number of circularly polarized antennas are used as the carrier of communication, while the circular polarized The gain of the circularly polarized antenna is lower than that of the end-fire, so the end-fire circularly polarized antenna has a high research value. [0003] The strength of the communication signal is measured by the gain of the antenna. Even if the end-fire antenna has a fairly high gain, it is necessary to pursue a higher gain, which is of great...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a high-gain end-fire circularly polarized antenna based on artificial surface plasmons, which can significantly improve the gain of the end-fire circularly polarized antenna, and solve the existing problems in the application of end-fired antennas in the prior art. Problems with low circular polarization gain

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