Multi Band Antenna for Implantable Applications

Abstract

Implantable antennas are topic of interest of researchers from last few decades. After the installment of first pacemaker in human body in late 1950’s a new era started for implantable devices and since then many advanced researches have been carried out. Implantable devices provide promising health care benefits. To monitor philological data like blood glucose from the inside of the human body these antennas are implanted inside the body. Concept of these is to provide maximum ease to the patient and to improve quality of life by timely determining the condition of patients. Efforts are being made to achieve high transmission data rate in these antennas. Implantable antennas operate on following bands: medical implanted communication service band (MICS 402–405 MHz), midfield band (1.45–1.6 GHz) and ISM band (2.4–2.45 GHz). Main challenge faced by these devices is low gain and miniaturization. An improved and novel design is presented in this research which operates on three bands. Size of the antenna presented is compact and it operates on three bands. Antenna size is 9 mm ×9 mm × 0.25 mm or 20.25 mm3. Roger RO3010 of permittivity 10.20 and loss tangent 0.0022 is chosen as a superstrate and substrate. Three bands on which antenna operate is 401 MHz, 940 MHz and 1400 MHz. To attain size reduction a shortening pin is used. HFSS 15 is used to design antenna and to calculate all the results attached in this research.