Stable microstrip leaky-wave antenna capable of periodically loading parasitic patch gain

Abstract

The invention discloses a stable microstrip leaky-wave antenna capable of periodically loading a parasitic patch gain. The antenna comprises a dielectric plate, a metal conveying belt, a metal floor,a feed connector, an impedance matching part and parasitic patches, the upper layer and the lower layer of the dielectric plate are tightly attached to the metal transmission band and the metal floorrespectively, and the parasitic patches are periodically loaded on the upper surface of the dielectric plate; a plurality of groups of trifurcate grooves are periodically etched in the length direction of the metal conveying belt, and an additional small groove is formed between every two trifurcate grooves; metal nails and the trifurcate grooves are located on the two opposite sides of the metalconveying belt respectively, the additional small grooves and the trifurcate grooves are located on the same side of the metal conveying belt, and the parasitic patches are distributed on the side close to the trifurcate grooves in the metal conveying belt. According to the invention, the mutual compensation with the metal conveying belt by introducing a parasitic patch is overcome, and the radiation performance of the antenna is improved. In actual operation, the shape and the size of the parasitic patches and the position of the metal conveying belt can be adjusted according to different conditions, and the optimal radiation performance is achieved.

Description

technical field [0001] The invention relates to the field of wireless communication applications, in particular to a microstrip leaky-wave antenna with stable gain periodically loaded with parasitic patches. Background technique [0002] In recent years, science and technology have been continuously innovated and developed, and wireless communication technology has also produced a qualitative leap. It has been widely used in mobile communication, radar detection and other fields, and people's living standards have been significantly improved. In radio equipment, antennas are used to radiate and receive radio waves, and provide the required coupling between the transmitter or receiver and the medium that propagates radio waves, and play an important role in the field of wireless communications. With the innovation of communication technology and the advent of the 5G era, higher requirements are placed on the performance of antennas. Therefore, people in the related field hav...

AI Technical Summary

Problems solved by technology

The reflected waves are superimposed on each other to form an open stop band, and the side gain is attenuated sharply, so that the antenna cannot realize continuous beam scanning from backward to forward, and the performance of the antenna is greatly limited

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