Open AccessSlit-Loaded Hexagonal Patch for Body Area Network Applications at 5.8 GHz
Author(s) -
Shaktijeet Mahapatra,
Mihir Narayan Mohanty
Publication year - 2021
Publication title -
applied computational electromagnetics society journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 29
eISSN - 1943-5711
pISSN - 1054-4887
DOI - 10.13052/2021.aces.j.361106
Subject(s) - hfss , patch antenna , ground plane , body area network , return loss , bandwidth (computing) , ism band , radiation pattern , materials science , hexagonal crystal system , antenna (radio) , microstrip antenna , wireless , acoustics , optoelectronics , electrical engineering , telecommunications , physics , computer science , engineering , chemistry , crystallography
Increasing population and expanding remote healthcare monitoring needs have provided an impetus to the research and development of wireless devices. The quest for smaller antennas for wireless devices has led to the design of the proposed antenna. In this work, we present a slit-loaded hexagonal patch antenna for body area network applications. The antenna has been designed on a 0.193λλ ×0.193λ×0.03λ×0.193λ×0.03λ FR4-epoxy substrate. The radiator patch has two parallel slits. The antenna resonates at 5.8 GHz (ISM band) with a wide bandwidth of 1.15 GHz. A maximum gain of 5.81 dB and a front-to-back ratio of 11.93 dB is observed at 5.8 GHz. Radiation efficiency is observed to be 72.3%. The measured return loss values show a close agreement with the simulated results. Specific absorption rate (SAR) analysis on a simplified 2/3rdrd muscle model shows an average SAR of 0.5633 W kg−1-1, due to the use of a full-ground plane. The simulations were done in ANSYS HFSS. The antenna is suitable for on-body communications.