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http://dx.doi.org/10.6109/jkiice.2022.26.11.1672

The design of Horn array antenna for 28GHz millimeter wave band  

Jin, Duck-Ho (Department of information and communication, Tech University of Korea)
Lee, Je-Ho (Department of Electronics Engineering, Tech University of Korea)
Abstract
In this paper, the relay antenna was designed in consideration of the performance of the 28GHz band 5G mobile communication relay horn antenna, such as radiation pattern and return loss. A horn array for 5G mobile communication repeater was designed by arranging the antenna elements in phase, and the performance was analyzed. Unlike conventional WCDMA (3G) and LTE (4G), in millimeter wave band communication, high path loss occurs between transmission and reception. In the design of a 5G millimeter wave horn antenna, antenna performance such as isolation and gain between antenna elements as well as gain and bandwidth of the antenna must be additionally considered. The antenna gain of the single horn antenna (1×1) and the array horn antenna (2×4) in the 28GHz band is about 10.44d Bi and 19.58dBi, respectively, and the return loss is designed to be less than -18dB. It has proven its validity and has been shown to be suitable for application to 5G mobile communication relay system.
Keywords
Horn antenna; 5G mobile communication repeater; array antenna; multi-layer structure;
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