Dual-polarized antenna and MIMO (multiple input multiple output) antenna with same

Abstract

The invention discloses a dual-polarized antenna which comprises a first feeder, a second feeder, a first metal sheet and a second metal sheet. The first feeder and the second feeder are both fed into the first metal sheet in a coupling manner, and the second metal sheet and the first metal sheet are arranged oppositely and are electrically connected with one of the first feeder and the second feeder or both the first feeder and the second feeder. A metal wire is formed on the first metal sheet by a hollowed-out microgroove structure on the first metal sheet. One or more reserved spaces allowing electronic elements to embed are reserved on the dual-polarized antenna. Size of the antenna is smaller when the dual-polarized antenna operates under low frequency, and performance is better. The plurality of electronic elements are further embedded on the dual-polarized antenna as required, and accordingly performance and the frequency range required to be responded of the dual-polarized antenna can be regulated conveniently. In addition, the invention further discloses an MIMO (multiple input multiple output) antenna with the dual-polarized antenna. The MIMO antenna is high in isolation.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a dual-polarized antenna for wireless communication and a MIMO antenna with the dual-polarized antenna. Background technique [0002] The dual-polarized antenna is a new type of antenna technology. The traditional dual-polarized antenna combines +45° and -45° two antennas with orthogonal polarization directions and works in the duplex mode of transmission and reception at the same time, so its The most prominent advantage is to save the number of antennas of a single directional base station; for example, the directional base station (three sectors) of the general GSM digital mobile communication network uses 9 antennas, and each sector uses 3 antennas (space diversity, one transmission and two receptions) , if a dual-polarized antenna is used, only one antenna is required for each sector; at the same time, due to the dual-polarized antenna, the polarization orthogonality of...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that, aiming at the above-mentioned deficiencies of the existing dual-polarized antenna, a framework for breaking through the traditional antenna design is proposed, which saves the complicated design of the impedance matching network, ensures its miniaturization, wide adaptability and low operating frequency band Dual-polarized antenna still maintaining good performance and MIMO antenna with the dual-polarized antenna

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