Innovative Elliptical Patch Antenna Design with Bottom Strip for High-Performance Multiband Wireless Networks

Abstract

This paper presents a comprehensive investigation of a novel elliptical patch antenna integrated with a bottom strip, designed for multiband operation in advanced wireless communication systems. Fabricated on an FR-4 substrate (εr = 4.4), the antenna achieves a compact, cost-effective, and mechanically robust structure, while delivering stable radiation characteristics across multiple frequency bands. HFSS-based simulations reveal efficient performance over five distinct operating bands ranging from 5 GHz to 24 GHz, covering essential standards such as WLAN, WiMAX, 5G, and satellite communication. The antenna exhibits excellent impedance matching with return losses of –22.68 dB, –26.25 dB, –30.17 dB, –18.00/–26.00 dB, and –44.60 dB at resonant frequencies of 5.20, 6.26, 7.62, 10.14/11.64, and 17.60 GHz, respectively. Corresponding VSWR values remain well below the acceptable threshold of 2, indicating superior signal transmission and reduced reflection. The bandwidth enhancement, and 2D/3D radiation pattern analyses further validate the antenna’s suitability for modern wireless networks. Comparative evaluation with existing designs confirms the proposed antenna’s advantage in achieving wideband multi resonance behavior, thereby underscoring its potential in next-generation communication applications.