A Novel Asymmetric Patch Reflectarray Antenna with Ground Ring Slots for 5G Communication Systems

Electronics

Omar Hayat¹  MuhammadInam Abbasi²  FauziahanimC. Seman³  M.Ramlee Kamarudin³  AdelY. I. Ashyap³  M.Hashim Dahri³  M.Haizal Jamaluddin⁴ 

[1] Department of Engineering, National University of Modern Languages (NUML), Islamabad 44000, Pakistan;Faculty of Electrical and Electronic Engineering Technology, Universiti Teknikal Malaysia Melaka (UTeM), Melaka 76100, Malaysia;Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia (UTHM), Batu Pahat 86400, Johor, Malaysia;Wireless Communication Centre of Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Malaysia;

关键词: 5G;    asymmetric patch;    dual polarization;    dual resonance;    reflectarray;    unit cell;   

DOI  :  10.3390/electronics9091450

来源: DOAJ

【 摘 要 】

The narrow bandwidth and low gain performances of a reflectarray are generally improved at the cost of high design complexity, which is not a good sign for high-frequency operation. A dual resonance asymmetric patch reflectarray antenna with a single layer is proposed in this work for 5G communication at 26 GHz. The asymmetric patch is developed from a square patch by tilting its one vertical side by a carefully optimized inclination angle. A progressive phase range of 650° is acquired by embedding a circular ring slot in the ground plane of the proposed element for gain improvement. A 332-element, center feed reflectarray is designed and tested, where its high cross polarization is suppressed by mirroring the orientation of asymmetric patches on its surface. The asymmetric patch reflectarray offers a 3 dB gain bandwidth of 3 GHz, which is 4.6% wider than the square patch reflectarray. A maximum measured gain of 24.4 dB has been achieved with an additional feature of dual linear polarization. Simple design with wide bandwidth and high-gain of asymmetric patch reflectarray make it suitable to be used in 5G communications at high frequencies.

【 授权许可】

Unknown