Compact wideband wearable antipodal Vivaldi antenna for 5G applications
Sahoo, Bikash Chandra; Al-Hadi, Azremi Abdullah; Azemi, Saidatul Norlyana; Hoon, Wee Fwen; Padmanathan, Surentiran; Isa, Che Muhammad Nor Che; Afroz, Sadia; Loh, Yen San; Suhaimi, Muhammad Irsyad; Lim, Lai Ming; Samsudin, Zambri; Mansor, Idris; Soh, Ping Jack (2023-03-20)
B. C. Sahoo et al., "Compact Wideband Wearable Antipodal Vivaldi Antenna for 5G Applications," 2022 IEEE International RF and Microwave Conference (RFM), Kuala Lumpur, Malaysia, 2022, pp. 1-4, doi: 10.1109/RFM56185.2022.10064761
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https://urn.fi/URN:NBN:fi-fe2023041436612
Tiivistelmä
Abstract
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 (ɛ r ) 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 (S 11 ), 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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