Antenna unit, dual-polarized antenna and antenna device

Abstract

The invention discloses an antenna unit, which comprises a first radiation sheet, a second radiation sheet and a grounding ring, wherein the first radiation sheet and the second radiation sheet are oppositely arranged and form an exponential shaped slot therebetween; the grounding ring is connected to the outer sides of the edges at the starting ends of the first radiation sheet and the second radiation sheet so as to enable the first radiation sheet and the second radiation sheet to be in short-circuit connection. The invention further discloses a dual-polarized antenna and an antenna device.According to the implementation of the invention, the reflection at the horn mouth surface can be reduced, the impedance and band characteristics of the antenna can be significantly improved, and broadband requirements of more than 15 times of frequency interval can be met. In addition, the antenna unit is simple in structure and wide in application range.

Description

technical field [0001] The invention relates to the technical field of communication antennas, in particular to an antenna unit, a dual-polarized antenna and an antenna device. Background technique [0002] In microwave communication and radar detection systems, the antenna undertakes the task of transmitting and receiving electromagnetic waves. When the signal is transmitted, the antenna converts the guided wave into a space electromagnetic wave and points it in a specific direction; when the signal is received, the antenna converts the space electromagnetic wave into a high-frequency electromagnetic wave and transmits it to the radio frequency receiver. [0003] In recent years, with the continuous development of communication systems and the improvement of microelectronic device technology, ultra-wideband communication technology and device manufacturing methods have emerged. Compared with traditional communication technologies, ultra-wideband antenna technology has a ban...

AI Technical Summary

Problems solved by technology

[0006] The maximum bandwidth of the ultra-wideband antenna realized by the above technical solution covers 9 octaves, which cannot meet the broadband requirements of more than 15 octaves required by the industry's ultra-wideband communications

Secondly, the lower limit of the application frequency of the ultra-wideband antenna determines the size of the antenna. The ultra-wideband antenna covering lower frequencies has a large size and is not suitable for application in the field vehicle or airborne environment.

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