Akademik Veri Yönetim Sistemi
AEU - International Journal of Electronics and Communications, cilt.191, 2025 (SCI-Expanded)
In this article, a dual-band compact textile antenna design operating in the Global Positioning System (GPS: 1575 MHz) and Wireless Local Area Network (WLAN: 5.2 GHz) bands is proposed for wearable applications. The primary radiator of the antenna is constituted by nested split-ring resonators (NSRRs), which are excited by a two-stage microstrip feed line. The copper radiator and feed line are placed on a denim fabric substrate. In addition, the other surface of the substrate material is equipped with a partial ground plane that extends along the microstrip feed line. The miniature antenna configuration (31 × 27 × 0.7 mm3) is achieved through the utilization of the NSRR mechanism, which exhibits a greater number of split gaps in comparison to the conventional split-ring resonator-based structure. This article presents a detailed discussion of the design approach employed in the antenna, with a particular focus on the extraction of the equivalent circuit model. The numerical return loss characteristics obtained by CST Microwave Studio and AWR-Microwave Office Circuit Design Software are in excellent agreement with the measurement results of the fabricated antenna. Based on the simulation and measured results, the proposed antenna demonstrates sufficient bandwidths and uniform radiation patterns with acceptable realized gain values at the targeted frequency bands.