Antenna and MIMO antenna provided with antennas

Abstract

The invention discloses an antenna which comprises a first dielectric substrate and a second dielectric substrate, wherein the first dielectric substrate is provided with two opposite side surfaces; a first metal sheet and a feeder that is fed in the first metal sheet in a coupled mode and partially surrounds the first metal sheet are arranged on one side surface of the first dielectric substrate; a second metal sheet is arranged on the other opposite side surface, and is electrically connected with the feeder; the first dielectric substrate is covered with the second dielectric substrate; and a microgroove structure is hollowed on the first metal sheet. According to the antenna, distributed capacitance of the antenna is increased with the adoption of the second dielectric substrate, and an effective radiating area of the feeder is increased with the adoption of the second metal sheet, so that the antenna can work at a very low frequency band, and the miniaturization and the high performance of the antenna can be ensured when the antenna works at the low frequency band. In addition, the invention further discloses an MIMO (multiple input multiple output) antenna provided with the antennas, and the MIMO antenna has high isolation.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to an antenna and a MIMO antenna with the antenna. Background technique [0002] With the high development of semiconductor technology, higher and higher requirements are put forward for the integration of today's electronic systems, and the miniaturization of devices has become a technical issue of great concern to the entire industry. However, unlike the development of IC chips following "Moore's Law", radio frequency modules, another important component of electronic systems, face the difficult technical challenge of device miniaturization. The radio frequency module mainly includes main components such as frequency mixing, power amplifier, filter, radio frequency signal transmission, matching network and antenna. Among them, the antenna is the radiating unit and receiving device of the final radio frequency signal, and its working characteristics will directly ...

AI Technical Summary

Problems solved by technology

However, the impedance matching network additionally increases the feeder design of the electronic system and increases the area of ​​the radio frequency system. At the same time, the matching network also introduces a lot of energy loss, which is difficult to meet the system design requirements of modern communication systems with low power consumption.

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