Abstract
A compact dual parallel slotted-patch antenna having a single offset feed on the corner side is presented. The antenna geometry comprises parallel and horizontal coupled S dual slotted structure at the top, with a complete ground plane at the bottom, which is oriented to enhance the multiband frequency bands. The patch is patterned on an FR4 substrate having a dielectric constant of 4.4 and loss tangent of 0.02. The antenna has overall dimensions of 36 × 28 × 1.6 mm3, with an offset feed which is optimized to achieve 50 Ω impedance matching. The proposed antenna is simulated using a FEM-based high-frequency structure simulator, after which it is optimized, fabricated, and measured, with the simulated and measured results showing good agreement. The proposed compact antenna resonates in the pentaband frequency range which includes 2.00–2.16 GHz local TV transmission, 3.14–3.23 GHz for radio-frequency identification and detection, and 4.34–4.61 GHz for long-distance radio telecommunications. The antenna shows good gain ranging from 0.5 to 3.5 dBi with omnidirectional and bidirectional radiation patterns, making it suitable for its use in wireless applications with space constraints.










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Patel, R., Desai, A. & Upadhyaya, T. Low-Profile Parallel Mutually Coupled Triple-Band Antenna for Telecommunications Applications. Wireless Pers Commun 117, 945–956 (2021). https://doi.org/10.1007/s11277-020-07904-z
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DOI: https://doi.org/10.1007/s11277-020-07904-z