Bikash Chandra Sahoo, A. A. Al-Hadi, S. Azemi, W. F. Hoon, Surentiran Padmanathan, C. Isa, Sadia Afroz, Yen San Loh, Muhammad Irsyad Suhaimi, L. M. Lim, Zambri Samsudin, I. Mansor, P. Soh
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Compact Wideband Wearable Antipodal Vivaldi Antenna for 5G Applications
In this paper, a compact wearable antipodal Vivaldi antenna resonating at 3.5 GHz is proposed for 5G n77 and n78 bands. It is designed on a flexible polyester substrate with a dielectric constant (ɛr) of 2 and loss tangent (tan δ) of 0.005. The antenna parameters were optimized via parametric analyses using CST software with a size of 33 × 33 mm2 (length × width). The antenna is evaluated in terms of reflection coefficient (S11), gain, efficiency, radiation pattern and surface current density and its reflection coefficient is verified with measurement. This antenna attained a maximum simulated gain of 4.17 dBi and an efficiency of 98.18 % in the resonating band.
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