Singular mode artificial surface plasmon-based broadband end-fire antenna, and wireless communication system

Abstract

The invention belongs to the technical field of antennas, and discloses a singular mode artificial surface plasmon-based broadband end-fire antenna, and a wireless communication system. The singular mode artificial surface plasmon-based broadband end-fire antenna comprises a feedback structure and a radiation structure, wherein the feedback structure comprises a conversion structure of a microstrip slot line, which can excite a singular mode artificial surface plasmon, the radiation structure consists of a period ripple metal strip with a gradually changing end, and both the feedback part andthe radiation part are printed on a dual-side copper covered medium plate. The dispersion characteristic of an artificial surface plasmon unit is analyzed by using an eigen mode method, and broadbandefficient radiation end-fire antenna in the microwave band is designed by analyzing a dispersion curve. Full wave electromagnetic simulation and processing tests are performed so as to prove that theantenna can realize broadband end-fire radiation in a designed band. The end-fire antenna has characteristics of broad working band, stable fire-end performance, thinness, light weight and easy processing, thereby having a bright application prospect in the field of novel broadband end-fire antennas.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a wide-band end-fire antenna and a wireless communication system based on odd-mode artificial surface plasmon polaritons. Background technique [0002] At present, the existing technology commonly used in the industry is as follows: Surface plasmon polaritons (SPPs) are a kind of surface electromagnetic waves. In the visible light band, the metal has a negative dielectric constant, and the free electrons on its surface present a plasma state, which can form surface plasmons. However, when the frequency is as low as the microwave frequency band, the metal is an ideal conductor state, and surface plasmons no longer exist. To remedy this shortcoming, the development of artificial composite electromagnetic materials that create extraordinary physical properties not possessed by natural coal can expand the application of surface plasmons. An ultra-thin plasmonic corruga...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the existing problems in the existing technology are: the antennas designed based on artificial surface plasmons are mostly even-mode excited artificial surface plasmons, and their transmission loss is large, which can only be achieved by adding other structures or changing the Only the waveguide type can excite the odd mode

At the same time, in the field of antenna design, it is very difficult to achieve high-gain broadband continuous directional pattern antennas

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