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2025-11-01
A Wideband Circularly Polarized Textile-Based Microstrip Antenna for Wearable Wireless Applications
By
Progress In Electromagnetics Research C, Vol. 161, 135-141, 2025
Abstract
This paper presents the design, fabrication, and analysis of a wideband circularly polarized wearable antenna operating in the frequency range of 2.6 GHz to 4.7 GHz. The antenna is designed on a jeans substrate with dimensions of 25 × 30 × 1.4 mm3, having a dielectric constant of 1.7 and a loss tangent of 0.085. The proposed antenna demonstrates a gain of 2.8-3.4 dB across the operating frequency band and exhibits circular polarization in the frequency range of 3.2 GHz to 3.9 GHz. To achieve wideband performance and circular polarization, the antenna design incorporates an octagonal ring patch with a hybrid slot and stub in the partial ground plane, along with four slots in the ring patch. The antenna is fabricated and its performance is validated through Vector Network Analyzer and anechoic chamber measurements, showing good correlation with simulated results. Specific Absorption Rate (SAR) analysis and on-body simulations are conducted to evaluate its suitability for wearable applications.
Citation
Sekhar Manepalli, Lalitha Bhavani Konkyana, Sanapala Umamaheswararao, Vysyaraju Lokesh Raju, Chaitanya Kumar Marpu, and Kotni Krishnam Raju, "A Wideband Circularly Polarized Textile-Based Microstrip Antenna for Wearable Wireless Applications," Progress In Electromagnetics Research C, Vol. 161, 135-141, 2025.
doi:10.2528/PIERC25091602
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