Broadband high-isolation 2*2 microstrip antenna

Abstract

The present invention discloses a broadband high-isolation 2*2 microstrip antenna and belongs to the antenna technical field. The broadband high-isolation 2*2 microstrip antenna comprises a first radiating element, a second radiating element, a first H-shaped open slot, a second H-shaped open slot, a first feeding unit, a second feeding unit, a first dielectric substrate, a second dielectric substrate, a third dielectric substrate, an air dielectric layer, ground layers and spacers; the first radiating element is attached onto the upper surface of the first dielectric substrate; the second radiating element is attached onto the upper surface of the second substrate; the air dielectric layer is located between the first dielectric substrate and the second dielectric substrate and is supported by the spacers; the ground layers are attached onto the lower surface of the second dielectric substrate and the upper surface of the third dielectric substrate respectively; the two ground layers contact with each other; the first feeding unit and the second feeding unit are attached onto the lower surface of the third dielectric substrate; the first H-shaped open slot and the second H-shaped open slot are H-shaped open slots formed in the ground layers; the first H-shaped open slot and the second H-shaped open slot are perpendicular to each other in physical directions; and the first feeding unit and the second feeding unit are perpendicular to each other in physical directions.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a broadband high-isolation 2x2 microstrip antenna. Background technique [0002] In recent years, with the rapid development of communication technology, wireless mobile communication has also been widely used. The antenna is an important part of the wireless mobile communication system, responsible for sending and receiving wireless signals. [0003] Among many types of antennas, microstrip antennas are favored by the market and widely used due to their small size, light weight, planar structure, easy integration with IC devices, easy mass production, and low cost. However, the shortcoming of the narrow working bandwidth (<5%) of the microstrip antenna also greatly limits the application of the microstrip antenna. In recent years, with the advent of the era of high-speed data communication, broadband wireless communication has developed rapidly. Broadband wireless communic...

AI Technical Summary

Problems solved by technology

However, the shortcoming (<5%) of the narrow operating bandwidth of the microstrip antenna also greatly limits the application of the microstrip antenna.

In recent years, with the advent of the era of high-speed data communication, broadband wireless communication has developed rapidly. Broadband wireless communication requires a relatively wide operating bandwidth, and the shortcoming of the narrow operating bandwidth of the microstrip antenna limits its application in the rapidly developing field of broadband wireless communication.

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