Akademik Veri Yönetim Sistemi
2020 4th International Symposium on Multidisciplinary Studies and Innovative Technologies (ISMSIT), İstanbul, Türkiye, 22 - 24 Ekim 2020, ss.1-5, (Tam Metin Bildiri)
A metamaterial based microwave biosensor is
presented for ISM band biomedical applications. Modeling and
simulations are carried out in CST Microwave Studio. Initially
a metamaterial resonator consisting of a microstrip meandered
line with a middle gap and three separate microstrip lines is
designed and optimized to operate at 2.45 GHz ISM band. In
the first stage considering that there is air on the sensor
surface, return / insertion loss curves are obtained, and then
four different dielectric materials with four different
permittivity; Taconic TLP-5 (r = 2.2), Rogers RO4533 (r =
3.4), Arlon AD450 (r = 4.6), Preperm L570 (r = 5.8) are
applied respectively to the sensor surface. While there is a 1.2
change in the dielectric coefficient, a 100 MHz change is
observed in the central resonance frequency at each step. This
proved that this proposed structure can be used as a biosensor
in detection studies of biomaterials such as cancer tissues and
malignant cells whose permittivities has been determined by
previous studies and is a good candidate for biomedical
diagnosis.