A Compact Design for Dual-band Implantable Antenna Applications

This paper presents the development of a dual-band antenna working in the Industrial, Scientific, and Medical (ISM) band (902 – 928 MHz, 2.4 – 2.5 GHz). The proposed antenna is compact, has a frequency-independent response between the lowest and the highest frequency, has a small size of 6 mm x 6 mm x 2.54 mm, and exhibits a high gain for implantable application of -13.14 dBi at 915 MHz and -28 dBi at 2.45 GHz. This design does not use any via or defected ground plane making the antenna very useful for this kind of application. The miniaturized dual-band antenna has been tested in the presence of salmon fish and chicken meat to replicate the behavior of the antenna in the human body.