Title :
Small circularly polarized implantable antennas
Author :
Changrong Liu ; Yong-Xin Guo ; Shaoqiu Xiao
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
This paper presents two types of compact circularly polarized (CP) implantable antennas for Industrial, Scientific, and Medical (ISM) (2.4-2.48 GHz) biomedical applications. The simulated antenna performance inside a human body environment (one-layer skin) includes impedance bandwidth, axial ratio (AR) bandwidth, and radiation are compared and discussed. The dimensions of proposed CP patch antenna and helical antenna are 10×10×1.27 mm3 and π×(5.5)2×3.048 mm3, respectively. The performance of communication link between implantable antennas and external CP antenna and linearly polarized (LP) antenna is also discussed.
Keywords :
biomedical communication; helical antennas; microstrip antennas; CP patch antenna; axial ratio bandwidth; compact circularly polarized implantable antennas; frequency 2.4 GHz to 2.48 GHz; helical antenna; human body environment; impedance bandwidth; linearly polarized antenna; Abstracts; Bandwidth; Feeds; Impedance; Skin; Substrates;
Conference_Titel :
Electromagnetics (iWEM), 2013 IEEE International Workshop on
Conference_Location :
Kowloon
Print_ISBN :
978-1-4799-6654-7
DOI :
10.1109/iWEM.2013.6888759
