Abstract
The field of RF planar sensors usually involves design and development of a planar structure for estimating the electromagnetic (EM) properties of materials and media in the RF and microwave frequency regime. The EM properties are expressed in terms of the complex permittivity and complex permeability, which are estimated by performing the measurement of scattering-parameters (S-parameters) in the desired frequency range. The estimation of EM properties in the RF and microwave range is usually carried out using the non-destructive and non-invasive approach, which leads to its indirect application in some interesting real-world scenarios including humanitarian and biomedical applications. In recent years, the usage of metamaterial inspired RF planar sensors based on sensing elements such as the split ring resonator (SRR), the complementary split ring resonator (CSRR), and the inter digital capacitor (IDC) resonator has increased due to their several advantages. The metamaterial inspired structures are basically electrically small resonators providing enhanced electric/magnetic field over relatively small sensing region leading to improved sensitivity, which is quite advantageous for biomedical applications as even small variation in some parameters can be detected. This talk would provide a brief overview of metamaterial inspired planar RF sensors with prime focus on biomedical applications. To this end, the metamaterial inspired RF sensors integrated with the microfluidic channel in order to accurately test even small amount of biomedical samples would also be discussed. A number of applications related to
biomedical field such as non-contact detection of glucose and saline concentration inside the host medium, detection of the toxic substances in the medical grade pure glycerol, identifying the purity of medical grade silicon etc., would be described.
Speaker's profile
M. Jaleel Akhtar received the Master’s degree in electronics & communication engineering from Birla Institute of Technology, Ranchi and Ph.D. degree in electrical engineering from the Otto-von-Guericke University of Magdeburg, Magdeburg, Germany, in 2003. He was a Scientist with the Central Electronics Engineering Research Institute, Pilani, India, from 1994 to 1997, where he was involved in the design and development of high-power microwave tubes. He joined the Karlsruhe Institute of Technology (KIT-FZK), Institute for Pulsed Power and Microwave Technology (IHM), Karlsruhe, Germany, as a Postdoctoral Research Scientist, in 2003, where he primarily worked on microwave-material interaction. In 2009, he joined the Department of Electrical Engineering, IIT Kanpur, Kanpur, India, where he is currently a Full Professor. He has supervised 20 Ph.D. students and over 70 masters’ students and has been the PI for around 15 projects. He has authored two books, four book chapters, and has authored or co-authored over 300 papers in various peer-reviewed international journals and conference proceedings. He holds three patents on RF sensors for testing of solid and liquid sample and one patent on nanomaterial integrated RF sensor for detection
of harmful gases in the environment.
