Open AccessCavity‐backed on‐body antenna for customised hearing instrument applications
Author(s) -
Ruaro A.,
Thaysen J.,
Jakobsen K.B.
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2015.0899
Subject(s) - antenna (radio) , head (geology) , acoustics , computer science , ear canal , volume (thermodynamics) , engineering , electronic engineering , telecommunications , physics , geology , quantum mechanics , geomorphology
A novel on‐body antenna targeted for 2.45 GHz customised in‐the‐ear hearing instrument applications is designed, implemented, and measured. The antenna is designed to use the maximum volume available in the user's ear canal and to provide isolation from the user's body. The polarisation is primarily normal to the surface of the head to ensure the best on‐body path gain. Efficiency and S ‐parameters from measurements in free space and on a specific anthropomorphic mannequin head endowed with ears are presented.