A Dual-Polarized Sakura-Shaped Base Station Antenna for 5G Communications
Keywords:
5G, Base station antenna, dual-polarized, low cost, printed-dipoleAbstract
In this paper, a dual-polarized sakura-shaped base station antenna for the fifth generation (5G) communication is designed and optimized. The antenna is mainly composed of four parts: main radiator, feed structures, bedframe and reflector. By fabricating and testing of the prototype of the antenna, the results show that the bandwidth (return loss >10dB) of antenna port 1 and port 2 are 9.2% (3.3-3.62GHz) and 16.5% (3.12- 3.68GHz), respectively. In the entire working frequency band, the isolation is greater than 23.5dB. Moreover, the proposed antenna has a stable radiation pattern, and the horizontal half-power beam width (HPBW) and gain of the antenna vary within 65±4° and 5.25-6.31dBi, respectively. The antenna adopts PCB printed structure and has a compact structure 70×70×28mm³. The designed antenna has the advantages of low cost, light weight and good consistency of direction pattern.
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