Filter based on half-wavelength resonator with strip line structure and antenna

Abstract

The embodiment of the invention discloses a filter based on a half-wavelength resonator with a strip line structure and an antenna, and belongs to the technical field of communication. The filter comprises a half-wavelength resonator and a multiple layers of surface-mounted PCB dielectric plates, wherein the half-wavelength resonator is positioned on the PCB dielectric plate of the middle layer; the central position of the half-wavelength resonator is virtually grounded, and the half-wavelength resonator adopts alternating arrangement of hairpin line structures and comb line structures. In theembodiment of the invention, the filter is realized by adopting the low-loss tangent PCB dielectric plates, so that the development cost is reduced. The central position of the half-wavelength resonator in the filter is virtually grounded, so that the resonator is prevented from being grounded, and the problem of difficulty in accurately controlling the size of grounding in circuit processing issolved. The half-wavelength resonator in the filter adopt the hairpin line structures and the comb line structures, the miniaturized filter is realized by adopting the resonator with the strip line structure, and the hairpin line structures and the comb line structures are alternately arranged to realize half-wavelength coupling.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of communications, and in particular to a filter and an antenna based on a half-wavelength resonator with a stripline structure. Background technique [0002] 5G with phased array technology (5 th Generation, the fifth generation mobile communication system) millimeter wave communication technology is currently the hottest communication technology research field, including China, the United States, Europe and other regions have released 5G millimeter wave frequency bands, and 24Hz / 28Hz / 39GHz will be used as the future 5G millimeter wave The commercial frequency band of the wave. Phased array technology needs to integrate a large number of filters in the antenna to resist interference. Therefore, the development of miniaturized filters for millimeter wave bands is the key to 5G millimeter wave technology. Traditional metal filters cannot be integrated inside the antenna due to their l...

AI Technical Summary

Problems solved by technology

[0004] However, when using LTCC technology and MEMS technology to realize miniaturized filters, a large amount of capital and cycle investment are required in the early stage of development, which limits the research and development of filters.

Images