Nurhayati Nurhayati, Fitri Yuli Zulkifli, Ali Hanafiah Rombe, Rohim Aminullah Firdaus, Muhammad Fauzan Edy Purnomo, Minh Thuy Le, Ahmed J.A. Al-Gburi
Telecommunications technology in the Super Wide Band (SWB) frequency is crucial for numerous applications including short- and long-distance communication. This study examines the effect of wavy structure at the top edge of the patch, the variation of ground height, the shape and the location of Complimentary Split Ring Resonator (CSRR), and square spiral structure to a semi-elliptical monopole antenna performance. Parametric studies were used to evaluate the antenna's reflection coefficient, directivity, band notched frequency, and axial ratio. Simulation results show that the antenna has a reflection coefficient of less than -15 dB at most frequencies from 0.38 to more than 20 GHz. The Wavy structure type A monopole antenna has a directivity of 6.12 dBi at 2 GHz, whereas type B has 3,985 dBi. However the highest gain for Antenna Type-C is 7.45dBi. Especially at low frequencies, ground height affects antenna return loss. Several notched band frequencies and circular polarization can be generated on the antenna by providing a rectangular spiral structure on the groundplane or a CSRR structure at the base of the patch. The minimum axial ratio (AR) is 1.11 dB at frequencies from 5.965 GHz to 6.585 GHz and 0.56 dB at 2 GHz when the spiral structure height is varied. There is agreement on the antenna's performance between the experimental and simulation results. The antenna has been utilized in through-wall radar, therefore it can be used to improve Super Wide Band radar and communications systems. © 2025 The Author(s)
Department of Electrical Engineering, Universitas Negeri Surabaya, Surabaya, 60231, Indonesia; Department of Electrical Engineering, Universitas Indonesia, Depok, 16435, Indonesia; Department of Electrical Engineering, Universitas Sumatera Utara, Medan, Indonesia; Department of Physics, Universitas Negeri Surabaya, Surabaya, 60231, Indonesia; Department of Electrical Engineering, Universitas Brawijaya, Malang, Indonesia; School of Electrical and Electronic Engineering, Hanoi University of Science and Technology, Hanoi, Viet Nam; Center for Telecommunication Research & Innovation (CeTRI), Fakulti Teknologi Dan Kejuruteraan Elektronik Dan Komputer (FTKEK), Universiti Teknikal Malaysia Melaka (UTeM), Jalan Hang Tuah Jaya, Durian Tunggal, Melaka, 76100, Malaysia
