Multipolarized Wideband Circular Patch Antenna for Fifth-Generation Multi-Input-Multi-Output Access-Point Application

• Published in: IEEE antennas and wireless propagation letters Vol. 18; no. 10; pp. 2184 - 2188
• Main Authors: Wong, Kin-Lu, Chou, Chieng-Ming, Yang, Yu-Jie, Wang, Kuan-Ying
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.10.2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Access-point antennas; Antenna gain; Antenna measurements; Antenna radiation patterns; Broadband; circular patch antennas; Circularity; Correlation analysis; Correlation coefficients; Feeds; fifth-generation (5G) antennas; Impedance matching; MIMO communication; multi-input–multi-output (MIMO) antennas; multipolarized antennas; Patch antennas; Shells; Wideband
• ISSN: 1536-1225; 1548-5757
• DOI: 10.1109/LAWP.2019.2940032

A multipolarized wideband circular patch antenna for multi-input-multi-output operation in the fifth-generation band of 3300-4200 MHz is presented for access-point applications. The circular patch antenna is excited by three probe feeds (Ports 1-3) equally spaced by 120° to generate three different polarized waves in the fundamental (TM 11 ) mode. Each port on the circular patch is surrounded by a printed ring slot to achieve good impedance matching and isolation, thereby achieving good antenna performance in 3300-4200 MHz (measured efficiency better than about 88% and peak antenna gain about 6.6 dBi). Additionally, very low measured envelope correlation coefficients (<0.05) of the three generated waves are obtained.