Akademik Veri Yönetim Sistemi
Türk Fizik Derneği 40.Uluslararası Fizik Kongresi, Muğla, Türkiye, 02 Eylül 2024, cilt.6, ss.29-36, (Tam Metin Bildiri)
The increasing demand for advanced wireless communication and networking systems has driven the need for multi-band antennas that can operate efficiently across various frequency bands while maintaining both functionality and compatibility. This research introduces a novel multi-band slotted microstrip patch antenna designed to operate at 2.44 GHz, 4.37 GHz, 5.53 GHz, 7.16 GHz, and 9.68 GHz, targeting applications in the S, C, and X bands. The antenna has compact dimensions of 29 × 30 × 1.6 mm³ and utilizes a microstrip feed optimized for 50 Ω impedance matching. The design, developed using a commercial electromagnetic solver, features a modified triangular patch and a partially defected ground plane on a 1.6 mm-thick FR-4 substrate. The patch incorporates symmetric step-like slots and a stub slot, while the ground plane includes symmetrically positioned L-shaped slots. Under simulation, the antenna demonstrates five distinct operating bands (although the return loss value of the fourth band is relatively low) with return loss values better than −10 dB, and respective bandwidths of 0.389 GHz (16.0%), 0.782 GHz (17.9%), 0.750 GHz (13.6%), 0.479 GHz (6.68%), and 1.96 GHz (19.64%). The corresponding gains at these frequencies are 1.02 dBi, 2.72 dBi, 1.58 dBi, 2.67 dBi, and 1.63 dBi, respectively. A prototype, measuring just 29×30 mm, was fabricated, and its performance showed good agreement with simulation results. The proposed antenna is compact and operates across five frequency bands, making it suitable for applications such as Wi-Fi, Bluetooth, satellite communication, and point-to-point microwave communication links.