Study of a printed split-ring monopole for dual-spectrum communications

Bright Yeboah-Akowuah; Eric Tutu Tchao; Masood Ur-Rehman; Mohammad Monirujjaman Khan; Sarosh Ahmad

doi:10.1016/j.heliyon.2021.e07928

Study of a printed split-ring monopole for dual-spectrum communications

Heliyon. 2021 Sep 15;7(9):e07928. doi: 10.1016/j.heliyon.2021.e07928. eCollection 2021 Sep.

Authors

Bright Yeboah-Akowuah¹, Eric Tutu Tchao¹, Masood Ur-Rehman², Mohammad Monirujjaman Khan³, Sarosh Ahmad⁴

Affiliations

¹ Kwame Nkrumah Universtiy of Science and Technology, Department of Computer Science, Kumasi, Ghana.
² Electronic Engineering, School of Engineering, University of Glasgow, James Watt Building, University Avenue, Glasgow, G12 8QQ, UK.
³ Department of Electrical and Computer Engineering, North South University, Bashundhara, Dhaka, 1229, Bangladesh.
⁴ Department of Electrical Engineering and Technology, Government College University Faisalabad, Pakistan.

Abstract

In this study, we present a low-profile dual-spectrum split-ring monopole that operates at industrial, scientific and medical (ISM) (2.45 GHz) band and ultrawideband (UWB) spectrum (3.1-10.6 GHz). We optimised the design for dual-band operations by using circular split-ring radiators. The coupling between both rings drives the structure to achieve quasi-resonance frequencies in the UWB spectrum. A small stub combines the two radiators and both behave as a single element that enables the antenna to resonate at ISM band 2.45 GHz. The antenna achieves the desired characteristics in terms of good impedance matching, radiation properties as well as other physical and practical requirements such as compact geometry, planar profile and easy fabrication. The very good agreement between the simulated and measured results show that the proposed antenna has the potential for dual-band application.

Keywords: Dual-band; Industrial, scientific and medical (ISM); Planar monopoles; Ultrawideband (UWB).