Design Of MISC Band Implantable Antenna

With the development of the remote biomedical telemetry technology,embedded devices gradually become the focus of people’s attention.In remote telemetry,antennas need to work in the Medical Implant Communications Services channel,the channel is widely used in biomedical engineering.Implantable antenna is used for the transmission of human body internal information.Thedesign of a novel coplanar waveguide feed implantable antenna operating atMedical Implant Communication Services band,and the size of antenna is 182.88 mm3(12 mm ×12 mm×1.27 mm).Using high relative dielectric constant materials Rogers3010 and compact structure to reduce the antenna size,and uses software computer simulation technology(CST)to simulate and calculate,the parameters of antenna are optimized,and gains the best design effects.Through making material object we get the result that the return loss is-36dB at 402MHz,By realizing miniaturization,it also maintains-33.27dB far field antenna gain,to ensure the reliabilityof the antenna.This article also use high frequency structure simulator(HFSS)to design a conformal implantable antenna working in medical implantable communication service,,realize the wide band of the antenna.The basic structure is as follows:First,introduce the development of the remote telemetry and implantable antenna recently research status at internal and abroad;Then introduces the basic principle of the antenna,implantable antenna’s work environment,frequency requirements,miniaturization,implantable antenna commonly used types and coplanar waveguide feed antenna’s principle;Then I design a CPW feed implantable antenna,compared with other antenna to analyze its performance characteristics,and analysis of the SAR parameters;Describing a conformal antennas and finally simulation to analyze the simulation results,comparing the advantages and disadvantages with the other conformal implantable antenna.