Antenna unit and dual-polarized antenna with same

Abstract

The invention discloses an antenna unit and a dual-polarized antenna with the same. The antenna unit comprises a first radiation piece, a second radiation piece, a balance piece and a feed piece, wherein the interior of the first radiation piece forms a first accommodation cavity, and a cavity body of the first accommodation cavity penetrates through a first end and a second end of the first radiation piece; the first end of the second radiation piece is not connected with the first end of the first radiation piece, and the second end of the second radiation piece is electrically connected with the second end of the first radiation piece; the first end of the balance piece is electrically connected with the second end of the second radiation piece; and the feed piece deviates from the center of the antenna unit by a preset distance and is arranged corresponding to the balance piece. According to the antenna unit provided by the embodiment of the invention, the miniaturization requirement of the combined antenna can be effectively met, and the dual-polarized antenna design is facilitated.

Description

Technical field [0001] The present invention relates to the field of wireless communication technology, in particular to an antenna unit and a dual-polarized antenna having the same. Background technique [0002] Phased array antennas are widely used in 5G mobile communications, radar, satellite communications, etc. The measurement of phased array, the amplitude and phase calibration of the unit antenna can adopt the method of near-field coupling, that is, the distance between the probe antenna (measurement antenna) and the antenna under test is very close (without affecting the antenna under test), such as figure 1 Shown. [0003] During the measurement process, the electromagnetic wave emitted by the antenna under test will be reflected back when it reaches the antenna under test, which will load the antenna under test and affect the accuracy of antenna measurement. Therefore, in order to improve the accuracy of the measurement, the RCS (Radar-Cross Section) of the measurement a...

AI Technical Summary

Problems solved by technology

[0004] In related technologies, taking the folded dipole antenna as an example, it has certain limitations when used as a probe antenna, such as large volume, which is difficult to meet the miniaturization requirements of the antenna. Another example is that the existing folded dipole antenna is difficult to design a dual-polarized antenna and needs to be improved urgently

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