High-performance dual-polarized microstrip antenna for fifth-generation communication system

Abstract

The invention discloses a high-performance dual-polarized microstrip antenna for a fifth-generation communication system. The antenna comprises a main radiator, a secondary radiator, an upper dielectric plate, a lower dielectric plate and a metal ground plane. The upper dielectric plate is fixed right above the lower dielectric plate through support columns, the main radiator is printed on an upper surface of the lower dielectric plate, the secondary radiator is printed on a lower surface of the upper dielectric plate, and the metal ground plane is printed on a lower surface of the lower dielectric plate. The structure of the main radiator is symmetrical about the geometric center of the main radiator, the main radiator comprises a square patch and a first gradient microstrip line, a second gradient microstrip line, a third gradient microstrip line and a fourth gradient microstrip line, the first gradient microstrip line, the second gradient microstrip line, the third gradient microstrip line and the fourth gradient microstrip line are connected with four corners of the square patch in a one-to-one correspondence manner, included angles between the second gradient microstrip line,the third gradient microstrip line and the fourth gradient microstrip line and the first gradient microstrip line are 180 degrees, 90 degrees and -90 degrees respectively. The problem that an existingbase station antenna is difficult to meet the reliable application requirement of a 5G large-scale antenna array is solved.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and relates to a high-performance dual-polarization microstrip antenna for the fifth generation communication system. Background technique [0002] Large-scale antenna array is one of the key technologies of the fifth-generation communication, and its number of channels reaches 64 / 128 / 256. Such a multi-antenna system not only requires the antenna unit to be small in size and low in profile, but also requires the port isolation of the antenna unit, crossover Polarization discrimination, gain and other indicators should also be maintained at a high level at the same time, in order to ensure the normal electrical performance and radiation performance of the multi-antenna system and achieve high performance. [0003] The application number is CN201410213379.4, and the title of the invention is "an improved angle-fed high-isolation dual-polarized stacked microstrip antenna". A low-profile...

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a high-performance dual-polarized microstrip antenna for the fifth-generation communication system, so as to solve the problem that the isolation, cross-polarization discrimination and gain of existing base station antennas are difficult to meet the 5G large-scale requirements at the same time. The question of reliable application requirements for antenna arrays

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