Abstract

This article presents a novel impedance matching layer (IML) placed on skin tissue to enhance the transmission ability for implantable antenna. The IML is designed with a particular dielectric constant to mitigate the reflection occurred at skin–air interface at 2.45 GHz Industrial Scientific and Medical (ISM) band. To obtain this targeted effective dielectric constant, periodic posts are inserted into a 3-D printed substrate to increase its shunt capacitance, forming an IML with a height of 17 mm for enhancement of transmission ability. Furthermore, a slow wave structure is adopted to lower the profile of IML further to 7 mm, making it more comfortable for routine wearing. To testify the property of the proposed IML, a slot implantable antenna is designed, and its gains with and without IML are comparatively studied. The simulated results exhibit a gain enhancement of over 5 dB with IML loaded, providing a promising solution for a typical communication link for implantable application.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.