Broadband radiation unit and antenna

Abstract

The invention provides a broadband radiation unit and an antenna. The broadband radiation unit comprises two pairs of polarized orthogonal radiators, each radiator comprises two radiation arms which are vertically connected with each other and a decoupling unit which is connected between the two radiation arms and forms a closed loop together with the two radiation arms, the decoupling unit is used for reducing mutual coupling with the high-frequency radiation unit, and the two adjacent radiation arms of the two adjacent radiators are arranged in parallel. According to the broadband radiationunit, the mutual coupling with the high-frequency radiation unit is effectively reduced, the isolation degree and the directional diagram performance of the antenna are improved, the equivalent aperture of the broadband radiation unit is larger, the beam width is narrower, the sector edge level is more quickly reduced, and the unit gain of the broadband radiation unit is greatly improved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a broadband radiation unit and an antenna. Background technique [0002] With the rapid development of modern wireless communication technology, problems such as a sharp increase in the number of base stations, difficult site selection, and inconvenient installation have become increasingly apparent. The base station antenna is one of the most important components of the base station system, and miniaturization, broadband, and multi-frequency sharing are its main development directions. [0003] In order to realize the miniaturization of the multi-frequency antenna, the internal space of the antenna is extremely compact, and the antenna units between different frequency bands will have mutual coupling problems. Strong mutual coupling will cause the deterioration of the antenna isolation and the distortion of the pattern, thus affecting the coverage of the base station. Effe...

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Problems solved by technology

However, the beam width of the oscillator pattern of the "cross" structure is generally wide and the gain is low. At the same time, in order to achieve the broadband impedance matching of the "cross" structure ±45° polarization, the size of the radiation arm is often large, which also increases the Effects on HF Antennas

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