Abstract
The paper discuss proposed multiband elliptical ring microstrip patch antenna for wireless communication applications, including ISM, Zigbee, Bluetooth, 4G, 5G, LTE, and UWB. The antenna is designed to operate efficiently across multiple resonance frequencies, including TM11, TM21, TM01, and TM31 modes. The antenna is fabricated using an FR4 substrate, and its performance is evaluated through both simulation and measurement. The results show that the antenna exhibits strong performance at its resonant frequencies, with realized gain values of 1.514 dB at 2.4 GHz (TM11 mode), 1.835 dB at 4 GHz (TM21 mode), 3.496 dB at 5.6 GHz (TM01 mode), and 4.804 dB at 8.4 GHz (TM31 mode). At 6.4 GHz, the antenna achieves its maximum realized gain of 7.537 dB. The field distribution and radiation pattern measurements, demonstrate excellent agreement between measures and simulated results. These findings confirm that the proposed antenna provides reliable and consistent performance, making it a promising solution for multiband communication applications that require efficient bandwidth and gain across a wide frequency range.
Keywords: Bandwidth Enhancement, Elliptical Patch, Multiband, Multimode, Wireless Communication.