5G massive MIMO luneberg lens antenna applied to low frequency band

Abstract

The invention discloses a 5G massive MIMO luneberg lens antenna applied to a low frequency band. The 5G massive MIMO luneberg lens antenna comprises a spherical or ellipsoidal artificial dielectric lens, N groups of + / -45-degree cross polarization feed sources which are arranged on the back surface of the artificial dielectric lens, and P groups of radio frequency TR components which are placed onthe back surfaces of the reflecting plates of the feed sources for realizing signal transceiving, wherein P is less than or equal to N. The 5G massive MIMO luneberg lens antenna further comprises P groups of switch matrixes which are respectively and correspondingly connected with the radio frequency TR components and are used for realizing beam forming, P groups of channel analog-to-digital components which are correspondingly connected with the switch matrixes, and P groups of data stream encoders which are respectively and correspondingly connected with the channel analog-to-digital components and are used for realizing channel digital precoding. The multi-beam high-gain Luneberg lens antenna is realized in the field of 5G mobile communication in a low-frequency band (698 to 960MHz frequency band) through conversion optics, and the problems of long wavelength, large size, high cost and difficulty in realizing massive MIMO when a traditional plate-shaped antenna is applied to the low-frequency band are solved.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a 5Gmassive MIMO Lunberg lens antenna applied in a low frequency band (698-960MHz frequency band). Background technique [0002] With the development of wireless communication technology, the rich application of wireless network drives the rapid growth of wireless data services. According to authoritative forecasts, data services will grow at a rate of 1.6-2 times per year in the next 10 years, which will bring huge challenges to wireless access networks. Therefore, it is necessary for future communication system designs to utilize bandwidth resources more efficiently. Significantly improve spectral efficiency. The 5G frequencies of China Mobile and China Radio and Television are distributed in the low-frequency band below 3GHz, and the frequency of China Radio and Television is distributed in the 700MHz frequency band below 1GHz. Although this frequency band is suitable for lo...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a 5G massiveMIMO Lunberg lens antenna applied in the low frequency band, which solves the defects existing in the application of the traditional planar MIMO antenna in the low frequency band (698-960MHz frequency band).

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