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Saidatul Norlyana Azemi
Compact full flexible vivaldi antenna for 3.5 GHz wearable applications
A 3.5 GHz wearable antipodal vivaldi antenna for 5G applications
2023
,
Bikash Chandra Sahoo
,
Azremi Abdullah Al-Hadi
,
Saidatul Norlyana Azemi
,
Wee Fwen Hoon
,
Surentiran Padmanathan
,
Sadia Afroz
,
Che Muhammad Nor Che Isa
,
Yen San Loh
,
Muhammad Syahir Mahyuddin
,
Lai Ming Lim
,
Zambri Samsudin
,
Idris Mansor
,
Soh Ping Jack
In this paper, a compact wearable Vivaldi antenna resonating at 3.5 GHz is proposed for 5G n77, and n78 bands. It is designed upon a flexible polyester substrate having dielectric constant (εr) of 1.34 and loss tangent (tan δ) of 0.005. The antenna parameters were optimized via parametric analyses using CST software with a size of 45 × 45 × 0.4 mm3 (length × width × height). The antenna is evaluated in terms of reflection coefficient, gain, efficiency, radiation pattern, and surface current density. This antenna attained a maximum simulated gain of 4.7 dBi, and an efficiency of 98 % in the resonating band.
2024-01
,
Sadia Afroz
,
Azremi Abdullah Al-Hadi
,
Surentiran Padmanathan
,
Saidatul Norlyana Azemi
,
Wee Fwen Hoon
,
Bikash Chandra Sahoo
,
Yen San Loh
,
Che Muhammad Nor Che Isa
,
Lun Hao Tung
,
Lai Ming Lim
,
Zambri Samsudin
,
Idris Mansor
,
Soh Ping Jack
This paper represents a wideband wearable antenna for 5G applications. In this proposed design, an antipodal vivaldi antenna structure is implemented on a polyimide and polyester combined substrate. The 120 × 95 × 0.82 mm3 sized antenna acquired a wide bandwidth of 910 MHz with a realized gain of 5.42 dBi and efficiency of 96 percent.