Title :
Develop implantable ceramic antennas with no superstrate
Author :
Chien, T.F. ; Cheng, C.M. ; Yang, H.C. ; Luo, C.H.
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
In this paper, two CPW-fed implantable broadband ceramic antennas without superstrate have been designed and experimented in the lossy phantom tissue fluid. Due to high dielectric constant and quality factor of the ceramic substrates, ANMg and ANA1 antennas exhibit miniaturization (288 mm ), lower return loss (-16 dB for ANMg and -24 dB for ANA1), better -10 dB bandwidth (33.5 % for ANMg and 41.5 % for ANA1), gain (-21 dB for ANMg and -19 dB for ANA1), and CPW-fed structure. Therefore, the proposed antennas are suitable for the implanted medical telemetry applications.
Keywords :
Q-factor; biological tissues; biomedical telemetry; broadband antennas; ceramics; coplanar waveguides; permittivity; phantoms; prosthetics; CPW-fed implantable broadband ceramic antenna; ceramic substrate; dielectric constant; implanted medical telemetry application; lossy phantom tissue fluid; miniaturization; quality factor; superstrate; Antenna measurements; Antenna radiation patterns; Ceramics; Power measurement; Receiving antennas; Substrates;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-4967-5
DOI :
10.1109/APS.2010.5561745
