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Low-profile pattern reconfigurable patch antenna with dual bands characteristic for 5G NR communication

Published online by Cambridge University Press:  13 November 2024

Zhonggen Wang ,
Jianguo Ma Open the ORCID record for Jianguo Ma [Opens in a new window] ,
Wenyan Nie  and
Weidong Mu
Zhonggen Wang
Affiliation:
School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan, China
Jianguo Ma*
Affiliation:
School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan, China
Wenyan Nie
Affiliation:
School of Mechanical and Electrical Engineering, Huainan Normal University, Huainan, China
Weidong Mu
Affiliation:
School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan, China
*
Corresponding author: Jianguo Ma; Email: [email protected]
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Abstract

In this paper, a low-profile antenna with characteristic of reconfigurable of dual bands’ pattern for 5G New Radio (NR) communication is proposed to mitigate the problems of signal fading and multipath propagation. The design incorporates a turnstile-shaped patch, a circular patch with etched rectangular slots and a discontinuous ring patch. The circular patch with etched rectangular slots and discontinuous ring patch are placed in the same plane to obtain dual band characteristic. The discontinuous ring patch works as a near-field resonant parasitic unit to improve the front-to-back ratio values at the resonance points and adjust the beam direction. Eight diodes are loaded to control the connection states of the rectangle slots on the circular patch. By combining an electric dipole formed by diode-controlled slot with a magnetic dipole formed by the turnstile-shaped patch, then a dual-band antenna with diverse patterns is designed. The measured results show that the designed antenna has dual-band characteristics and operates in the bands of 3.39–3.62 GHz and 4.77–5.01 GHz with peak gains of 3.6 dBi and 4.2 dBi, respectively. Furthermore, the measured radiation pattern results show that it is feasible to reconfigure the pattern in both bands simultaneously at 45° intervals.

Keywords

diverse patternsdual band characteristicsnear-field resonant parasitic unitPIN diode
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 16 , Issue 8 , October 2024 , pp. 1291 - 1302
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Copyright
© The Author(s), 2024. Published by Cambridge University Press in association with The European Microwave Association.

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