A Compact CPW-fed Multiband Bow-tie Slot Antenna for IoT Smart Healthcare Wireless Communication Applications

2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring)(2022)

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摘要
This paper designs, simulates and investigates a compact multiband bow-tie slot antenna (BTSA) for an internet of things smart healthcare (IoT-SH) wireless communication applications. The intended antenna prototype is simple in design and aimed to achieve the multiband response at specific microwave frequencies. The five distinct frequency bands were achieved by selecting an appropriate laminate material and dimensions / positions of the rectangular / triangular slots etched out from the metal conducting sheet. The designed antenna has the compact dimensions of 3.0 x 6.0 cm(2) and fed with an standard 50 Omega coplanar waveguide (CPW) feedline. A flame retardant (FR4) epoxy substrate material is used in the antenna design model with constant values of dielectric loss tangent delta = 0.02 and relative permittivity epsilon(T) = 4.4. Moreover, multiple frequency tuning and impedance matching performance were analyzed by varying the dimensions / position of CPW feedline. The key performance features of the proposed antenna such as impedance bandwidth, return loss, VSWR, surface current distribution and radiation patterns across the standard planes are analyzed and discussed. The group delay performance parameter is also provided in order to validate the proposed antenna results in time domain which has proven the overall baseline < 2.5 nano seconds at the specific resonances. Finally, the simulation results have been carefully analyzed, presented and their comparison with the recent reported literature is provided. The proposed antenna exhibited the promising results and suitable for IoT-SH wireless communication applications.
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关键词
Compact,Bow-tie Slot Antenna,CPW,Multiband,Group Delay,IoT Smart Healthcare (IoT-SH) Applications
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