Ultra broadband mobile communication radome based on antenna-filter-antenna array

Abstract

The invention discloses an ultra broadband mobile communication radome based on an antenna-filter-antenna array. The radome is a periodic frequency selection surface which is mainly formed by a plurality of same period unit structure arrays. Each period unit is mainly formed by upper and lower layers of dielectric layers, upper and lower layers of circular ring metal patch layers and a metal slit layer between the two dielectric layers. An electromagnetic field in a space hits the radome and successively passes through three layers of selective filtering of an upper layer metal layer, the metal slit layer and a lower layer metal layer, and then the electromagnetic field with a needed frequency range is output from the lower layer metal layer and clutter energy can be greatly restrained. The radome is suitable for the design of the ultra broadband mobile communication radome. A passband width is large, in-band insertion losses are small and are stable, and frequency selectivity performance is good. The radome has a great application value in the fields of mobile communication, a radar and the like.

Description

technical field [0001] The present invention relates to an antenna device, in particular to an ultra-wideband mobile communication radome based on an antenna-filter-antenna array (Antenna-Filter-Antenna), which can be used for ultra-wideband (5G) mobile communication, Background technique [0002] At present, the international demand for 5G mobile communications is imminent, and the EU's 5G network will be put into operation between 2020 and 2025. The US mobile operator Verizon Wireless announced that it will start a trial of the 5G network in 2016, and it will be fully commercialized in some cities in the United States in 2017 in the coming days. Chen Zhaoxiong, Vice Minister of the Ministry of Industry and Information Technology of my country, said: 5G is the main direction of the development of the new generation of mobile communication technology and an important part of the future new generation of information infrastructure. [0003] Compared with 4G, 5G will not only...

AI Technical Summary

Problems solved by technology

The common single-layer or double-layer metal frequency selective surface structure can realize narrow-band spatial filtering, or wide-band spatial filtering with poor selectivity

The poor selectivity here means that the insertion loss in the passband is not stable, the insertion loss in the passband is large, and the transition from the passband to the stopband is slow, and the suppression performance of the stopband cannot be guaranteed.

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