R.A. Firdaus, M. Khoiro, E. Rahmawati, Dzulkiflih, M. Yantidewi
This study examines the design of a folded dipole antenna equipped with a Stub Feed Line (SFL) to achieve a 3.5GHz resonant frequency operating on a 5G cellular network. Microstrip antennas, which are known for their advantages, such as being lightweight, easy to print, affordable production cost, and relatively small size, also have disadvantages, such as narrow bandwidth, low gain, and directivity, as well as low efficiency. In order to overcome these disadvantages, this study proposes the integration of SFL as a frequency shifter, which is expected to improve antenna performance. The proposed antenna design was tested through simulations using the Finite-Difference Time-Domain (FDTD) method and optimized with Particle Swarm Optimization (PSO) theory to achieve the expected radiation characteristics. The simulation results indicate that the stub integration is able to significantly improve the impedance matching, gain, and bandwidth of the antenna. The use of geometric structures, such as a U-Shape on the stub, is also proven to be effective in improving signal transmission efficiency and reducing reflection. This study provides an important contribution to the development of antenna technology, especially in supporting the deployment of more efficient and effective 5G cellular networks. © 2024 Institute of Physics Publishing. All rights reserved.
Physics Department, Universitas Negeri Surabaya, Surabaya, Indonesia
