Assistant Professor
ELECTRONICS AND COMMUNICATION ENGINEERING
Antennas, Waveguides, Plasmonics, Microwave Sensors, THz integrated circuits
RF Antennas and mm wave devices
Mail: rishitej@sru.edu.in
PhD in PLASMONIC INTEGRATED CIRCUITS at SRM UNIVERSITY AP
M.Tech in VLSI SYS DESIGN at JNTUK
BE in ECE at ANNA UNIVERSITY
Assistant Professor at PRAGATI ENGINEERING COLLEGE, from 2024-06-05 to 2025-03-01.
Assistant Professor at KALLAM HARNADH REDDY COLLEGE, from 2023-06-12 to 2024-04-01.
Assistant Professor at DHANEKULA ENGINEERING COLLEGE, from 2022-06-16 to 2023-04-09.
Assistant Professor at TKR COLLEGE OF ENGINEERING, from 2016-10-12 to 2019-04-04.
Assistant Professor at SASI INSTITUTE OF TECHNOLOGY AND ENGINEERING, from 2012-06-12 to 2015-02-09.
S. Imamvali, R. Chaparla, S. Tupakula and D. Chaturvedi, "Novel SSPP Sensor System with Octagon-shaped Unit Cell for Liquid Analyte Dielectric Constant Detection," 2023 Photonics & Electromagnetics Research Symposium (PIERS), Prague, Czech Republic, 2023, pp. 1467-1473, doi: 10.1109/PIERS59004.2023.10221265.
Chaparala, Rishiteja, and Sreenivasulu Tupakula. "Metal-Insulator-Metal Structured Surface Plasmon Polariton Waveguide with Improved Gain." Conference on Lasers and Electro-Optics/Pacific Rim. Optica Publishing Group, 2022.
Shaik Imamvali, Rishitej Chaparala, Yuvaraju Chinnam, Venkateswara Rao Kolli, Sreenivasulu Tupakula, Microfluidic-integrated SSPP sensor for rapid and sensitive label-free honey adulteration, Journal of Magnetism and Magnetic Materials,2025,173255,ISSN03048853https://doi.org/10.1016/j.jmmm.2025.173255.
Chaparala, Rishitej and Shaik, Imamvali and Tupakula, Sreenivasulu, Feeding of Dielectric Rod Antenna Using Spoof Surface Plasmon Polaritons (Sspps) WaveguideforWidebandApplications. SSRN: https://ssrn.com/abstract=4395464 or http://dx.doi.org/10.2139/ssrn.4395464
Chaparala, Rishitej, et al. "Integrated optic microring resonator for various sensing applications: design and analysis." Journal of Optics (2024): 1-16.
Kolli, V. R., R Chaparala, Tupakula, S., & Talabattula, S. (2024). A high sensitive integrated optic serially coupled racetrack ring resonator based pressure sensor. Optical Materials(Q1), 149, 115018.
Imamvali, Shaik, T. Nagarajan, Rishitej Chaparala, and Sreenivasulu Tupakula. "Spoof surface plasmon polaritons based detection of glucose in blood phantom for medical diagnosis." IEEE Sensors Journal (2024)
Chaparala, Rishitej, Shaik Imamvali, and Sreenivasulu Tupakula et al. “ Spoof surface plasmon polaritons based feeder for a dielectric rod antenna at microwave frequencies.” Progress in Electromagnetics Research M, Vol. 129, 23-32, 2024
Chaparala, Rishitej, Shaik Imamvali, and Sreenivasulu Tupakula. "Enhancement of spoof surface plasmon polariton waveguide performance through modified groove width." Optical Engineering 63.5 (2024): 055102-055102.
Chaparala, Rishitej, et al. "Optimizing Dielectric Rod Antenna Performance with Spoof Surface Plasmon Polariton-Based Feeding Method." Sensors 24.23 (2024): 7543
This patent discusses the Spoof SPP waveguide design with different dielectric materials and examining its transmission and refelection coefficients for different dielectric properties. In this patent we examined the dielectric materials like teflon, rogers, FR4 and oxide layers and explored the dielectric properties of the SSPP.
The innovation of this work lies in the design and placement of the SSPP feeding structure and its unit cell in conjunction with the Yagi Uda and SRRs. Since SSPP operate at low frequency ranges, this design enhances the transmission coefficient | S 21 | within 5.5 GHz compared to that of existing literature that does not incorporate SSPP techniques. The proposed SSPP sensing platform offers precise measurement of both solid and liquid samples with improved sensitivity. Observations indicates a correlation between the
This patent introduces a novel method for utilizing spoof surface plasmon polaritons (SSPP) to feed a dielectric rod antenna. The design features a simple dielectric rod antenna made from FR-4 material with a relative permittivity of 4.3. This design promises to offer an improved gain of up to 16.85 dBi with an antenna length of 7.6 ? 0 , surpassing traditional tapered dielectric rod antennas and their feeding configurations. By optimizing the design, we achieved impedance matching at 7.1 GHz.
The proposed invention reduces the loading effects associated with external coupling/probing circuitry by strategically placing them within the near field zone of two printed yagi uda antennas, which are excited by spoof surface plasmon polaritons(SSPPs). This placement effectively minimizes the additional loading impacts on the resonant characteristics of the microwave hexagonal split- ring resonators(HSRRs)
This invention relates to an advanced AI-enabled sensor system designed to analyze the quality of biological samples and detect impurities in various materials with high precision and reliability. The system integrates smart sensing modules with artificial intelligence algorithms to provide real-time, non-destructive, and accurate evaluation of biological and material properties. The sensor unit employs multi-modal detection methods such as optical, dielectric, and spectroscopic sensing.