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Design of a dual band dual mode antenna for on/off body communications
Author(s) -
Zhao Chen,
Geyi Wen
Publication year - 2020
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32085
Subject(s) - omnidirectional antenna , antenna (radio) , multi band device , radiation pattern , patch antenna , optics , dipole antenna , ground plane , monopole antenna , physics , coaxial antenna , acoustics , telecommunications , computer science
A dual band dual mode patch antenna for on/off body communications is proposed in this letter. The antenna operates at 2.45 and 5.8 GHz with different radiation modes. The radiation pattern is omnidirectional at the lower frequency band while directional in the broadside at the higher frequency band. Through introducing a ground plane below the radiating patch, the influence of the human body on the performance of the proposed antenna is minimized and the specific absorption rate value is significantly reduced and is much lower than the standard limit value.