High-resistance surface metamaterial waveguide slot antenna

Abstract

The invention discloses a high-resistance surface metamaterial waveguide slot antenna. The metamaterial waveguide slot antenna comprises a metamaterial waveguide tube and a radiation gap, wherein the metamaterial waveguide tube comprises a metal waveguide tube and a dielectric plate, the metal waveguide tube is a through tube with a rectangular cross section, the radiation gap is arranged in an upper surface of the metal waveguide tube, one end of the metal waveguide tube is opened and is used as a signal input port, the other end of the metal waveguide tube is closed and is in a short-circuit state, the dielectric plate is arranged on a wide edge of a lower part of an inner wall of the metal waveguide tube along a length direction, a periodic pattern is etched on a surface of the dielectric plate. By the antenna, low-loss radiation can be achieved in a working frequency band, and the antenna is high in efficiency; and by the antenna, dual-band suppression outside the working frequency band can be achieved, the characteristic of the antenna is equivalent to that of a high-pass filter when electromagnetic interference of a low frequency band is suppressed, and the characteristic of the antenna is equivalent to that of a band rejection filter when electromagnetic interference of a high frequency band is suppressed.

Description

technical field [0001] The invention relates to a microwave technology, in particular to a high-resistance surface metamaterial waveguide slot antenna. Background technique [0002] With the rapid increase of military frequency equipment and civilian radio equipment and systems, the electromagnetic environment is becoming more and more complex. Electromagnetic self-disturbance within electronic systems and electromagnetic mutual interference between electronic systems are gradually increasing. When electronic systems are applied to payload platforms such as ships, aircraft, and satellites, the electromagnetic environment around electronic equipment is very harsh due to the space constraints of the application platforms. Therefore, electromagnetic compatibility issues such as interference and anti-interference need to be considered when designing electronic systems. [0003] Generally, in order to solve the electromagnetic compatibility problem of electronic equipment, there...

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Problems solved by technology

However, the realization of this anti-interference is based on the fact that the antenna array has a waveguide power divider and can use the straight waveguide section. For a single-layer waveguide slot antenna without a waveguide power divider straight waveguide section, it is impossible to integrate a filter

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