Title :
Low-Profile Patch Antennas for Over-Body-Surface Communication at 2.45 GHz
Author :
Conway, Gareth A. ; Scanlon, William G.
Author_Institution :
Inst. of Electron., Commun. & IT, Queen´´s Univ., Belfast
Abstract :
Two low-profile patch antennas on small ground planes (0.25 lambda), suitable for over the body surface communication at 2.45 GHz are presented. On-body performance was investigated using FDTD simulations of S21 coupling of shorted microstrip patch antennas (S-MPA) and higher-order mode microstrip patch antennas (HM-MPA) placed on numerical tissue phantoms with characteristics of muscle tissue. The low-profile antenna coupling results are comparable to those achieved using a quarter wave monopole antenna on the same size of groundplane, mounted normal to the tissue surface, indicating that the low-profile antennas studied are promising for bodyworn antenna applications.
Keywords :
UHF antennas; electromagnetic coupling; finite difference time-domain analysis; microstrip antennas; mobile antennas; mobile radio; monopole antennas; muscle; personal area networks; 2.45 GHz; FDTD simulations; bodyworn antenna; higher-order mode microstrip patch antennas; low-profile antenna coupling; low-profile patch antennas; muscle tissue; numerical tissue phantoms; over-body-surface communication; quarter wave monopole antenna; shorted microstrip patch antennas; wireless personal area networks; Antennas and propagation; Bandwidth; Dielectric losses; Finite difference methods; Microstrip antennas; Patch antennas; Permittivity; Receiving antennas; Surface waves; Time domain analysis;
Conference_Titel :
Antenna Technology: Small and Smart Antennas Metamaterials and Applications, 2007. IWAT '07. International Workshop on
Conference_Location :
Cambridge
Print_ISBN :
1-4244-1088-6
Electronic_ISBN :
1-4244-1088-6
DOI :
10.1109/IWAT.2007.370163
