@sit.ac.in
Assistant Professor Department of Electronics and Instrumentation Engineering
siddaganga institute of technology
Dr. PANWALA FENIL CHETANKUMAR received B.E degree in Instrumentation and Control from Gujarat Technological University, Gujarat, India in 2014 and M.Tech degree in Electronics and Control, SRM University, Chennai, Tamil Nadu, India in 2017. He completed PhD from National Institute of Technology, Nagaland, India in June 2020. He is currently working as Assistant Professor in Department of Electronics and Instrumentation Engineering at Siddaganga Institute of Technology, Tumakuru, Karnataka, India. He has 12 journal publications in International Journals indexed in SCIE /SCOPUS, Four Conferences, one Book Chapter and one patent granted and two patent filed. His research Interests are in Micro/Nano Electro Mechanical Systems (MEMS/NEMS), BIOMEMS, Sensors and Transducers, Instrumentation System Design, Industrial Instrumentation and Process Control.
Dr. PANWALA FENIL CHETANKUMAR received B.E degree in Instrumentation and Control from Gujarat Technological University, Gujarat, India in 2014 and M.Tech degree in Electronics and Control, SRM University, Chennai, Tamil Nadu, India in 2017. He completed PhD from National Institute of Technology, Nagaland, India in June 2020. He is currently working as Assistant Professor in Department of Electronics and Instrumentation Engineering at Siddaganga Institute of Technology, Tumakuru, Karnataka, India. He has 12 journal publications in International Journals indexed in SCIE /SCOPUS, Four Conferences, one Book Chapter and one patent granted and two patent filed. His research Interests are in Micro/Nano Electro Mechanical Systems (MEMS/NEMS), BIOMEMS, Sensors and Transducers, Instrumentation System Design, Industrial Instrumentation and Process Control.
Multidisciplinary, Cancer Research, Electrical and Electronic Engineering, Biomaterials
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
B L Gagana and Panwala Fenil Chetankumar
IEEE
In contemporary analog and mixed-signal electronic systems, dynamic comparators are essential components, especially for applications requiring accuracy and speed. Low-power, high-speed dynamic comparators are essential for the design of digital I/O circuits and high-speed analog-to-digital converters (ADCs). Still, a lot of dynamic comparators work best when the input difference voltage is high enough. These comparators’ central component is frequently a pre-amplifier with an inverter-based CMOS input pair enclosed in a latch structure, which is dynamically driven by a floating reservoir capacitor. Because of the preamplifier’s limited strength, these comparators operate poorly at small input difference voltages, which presents a hurdle. Particularly in high-resolution, high speed ADC applications, this degradation is undesirable. The project suggests a cascode cross-coupled comparator as a solution to this problem. The primary goals of this effort are to lower the common-mode voltage that the latch experiences and increase the preamplifier’s differential gain. Significantly faster regeneration is the outcome of these enhancements, especially when handling minor input differential voltages. Through simulation, the suggested comparator design is carefully analyzed and tested with Mentor Graphics tools and determined the latency of 33.3ps.
S B Bhumika, N Chaitra, Panwala Fenil Chetankumar, S Harsha, and Babu Angadi
IEEE
In various industries where MEMS plays an important role in the field of sensors and its related applications like automotive, home appliance, biomedical and aerospace from which piezoresistive microcantilever sensor is a type mechanical microsensors which is under use since many years to understand different characteristic of a product. In this study it delves into the influence of discrete miniaturized piezoresistor shapes to check the performance of a pressure sensor tailored for precise measurements within the range of 1 to 10 bar. Utilizing CoventorWare simulation software, numerous piezoresistor configurations were systematically examined in which sensitivity of a product was tested with rectangular shape delivering 2.2 mV/bar, the U-shaped design offering 3 mV/bar, the Z-shaped configuration producing 7 mV/bar, and the S-shaped geometry leading with an impressive 13mV/bar sensitivity. On the basis of the simulation results conducted, S-shaped piezoresistor in particular stood out to be an optimal choice for applications necessitating high-precision pressure measurements and a comprehensive analysis underscores the adaptability of MEMS pressure sensors through piezoresistor shape customization.
Panwala Fenil Chethankumar, Lokashree N B, Naveen T, K V Niranjana Sharma, Ranjitha P, and Panchami J
IEEE
In recent times, farmers face a lot of problems due to birds and animals spoiling their crops by intruding into the farms. Comparatively, old methods like scare crows are not as effective as before, as the intruders realize the tactics relatively. Also, the other problems faced are forest fires destroying crops and withering of crops due to insufficient irrigation. Hence, in this work a new innovative method is adapted which protects the crops precisely. This work aims at developing a rotatory device that detects and identifies any real time moving object in its jurisdiction. This work also aims at developing a system that detects forest fires and conveys the same to the farmer instantly; and a system that irrigates the crops automatically upon requirement. On effective implementation, this work increases crop yield. It also contributes to factors like reduction in hunger overall and prevention of farmers' suicide. As a measure of cost effectiveness, the device is miniaturized to an extent where the ultrasonic sensor detects various movements in a 30 cm radius and triggers the servo motor and the sprinkler. Upon being triggered, the servo motor helps the device rotate accordingly to 180° angle. Simultaneously, the sprinkler sprinkles the water onto the detected intruder, which accounts for driving them away. The flame sensor for forest fire detection and the moisture sensor for automatic irrigation also work simultaneously. The precision and accuracy of the device will be enhanced in the future course according to the requirements.
H Hithashree and Panwala Fenil Chetankumar
IEEE
Any applications would prefer to have the circuits which are of high speed and consumes less power. To meet these requirements, the scaling of the circuits which are generally designed using Metal Oxide Semiconductor Field Effect Transistors (MOSFET) is done. Too much scaling down of the transistors or the integrated circuits (IC) affects the channel of the transistors causing Short Channel Effects (SCEs) which in turn affecting the reliability and performance of the circuits. To avoid this issue, a substitute of MOSFET known as Fin Field Effect Transistors (FinFE T) is used in the circuits. This helps to reduce the scaling needed and also has the better performance than the MOSFETs. This work demonstrates the advantageous performance of the FinFE Ts by implementing some of the basic building blocks of the digital circuits such as Inverter, NAND gate, NOR gate, a combinational circuit like Full Adder and a sequential circuit like SR Flip Flop. The designs are simulated using HSPICE tool at 45 nm technology. The parameters such as static power dissipation, dynamic power dissipation, rise time and fall time are examined through waveforms. The circuits with MOSFETs have the higher values from the parameters than the circuits with FinFETs.
Siddhanta Borah, R. Kumar, Subhradip Mukherjee, Fenil C. Panwala, and A. Prasanna Lakshmi
Inderscience Publishers
Rituraj Bhattacharjee, R. Kumar, Fenil Chetankumar Panwala, and P. Mohamed Shakeel
Springer Science and Business Media LLC
AbstractCirculating tumor cells (CTCs) are extremely scarce cells which cut off from a primary tumor and percolate into the circulation of blood flow and are, thus, critical for precise cancer detection and treatment. Deterministic lateral displacement (DLD) which exploits asymmetric splitting of laminar flow around the implanted microposts has displayed trustworthy capabilities in separating cells of varying sizes. In this research work, a microfluidic channel consisting of three symmetrically aligned inlets and outlets and embedded circular posts has been proposed which effectively separates the CTCs from lymphocytes utilizing the concept of DLD. Using a commercial software COMSOL Multiphysics 5.4, the design of the proposed microchannel has been simulated and analyzed considering an injected blood sample containing massive CTCs and slim WBCs of radii 13.5 µm and 6 µm, respectively. The proposed model of microchannel isolates the CTCs from WBCs at a comparatively higher sample mass flow rate of 4 × 10–6 kg/s and Reynolds number of 8.9 thereby operating efficiently at higher throughput, and offers excellent linearity in terms of velocity magnitude, pressure, shear rate and Reynolds number. The computational analysis of the proposed microchannel reveals that it can isolate CTCs from WBCs with better separation ratio, offers higher throughput, reduces possibilities of clogging and maintains better uniformity of pressure distribution and other flow parameters when compared with existing microchannel designs. The maximum separation ratio for CTCs and WBCs has been obtained as 84% and 96%, respectively.
Fenil. C. Panwala and R. Kumar
Springer Science and Business Media LLC
Fenil C. Panwala, R. Kumar, and P. Mohamed Shakeel
Elsevier BV
Trigunesh Narzary, R Kumar, and Fenil Panwala
IEEE
Microelectromechanical system based silicon diaphragm pressure sensor using S-shaped piezoresistors with four grooves has been proposed for pressure measurement in the range of 0 to 1.02 kg.cm-2. Four voids are located between every two grooves where the piezoresistors are placed. These piezoresistors are electrically connected with aluminium wires to form a Wheatstone bridge. By introducing grooves around the diaphragm, more stress is concentrated in the void regions, resulting in high sensitivity. In addition, improvement in the performance of the sensor has been attained by modifying its geometrical dimensions. On the basis of simulation experiments, the proposed pressure sensor has achieved a high sensitivity in the range of 45.41 mV/V/Kg.cm-2 to 48.25 mV/V/kg.cm-2 by taking different lengths of piezoresistors varying from 300 μm to 120 μm. The pressure sensor has a very low nonlinearity compared to other pressure sensors within this range. The design and simulation of the proposed piezoresistive pressure sensor is carried by using COMSOL Multiphysics 5.2a.
Fenil. C. Panwala, C Likith Kumar, and A. Vimala Juliet
IEEE
There are different types of Microfluidic particles sorting devices have been developed, but most of those devices have limitation in terms of the relatively low throughput. In this which method has been used is Hydrodynamic Filtration through which sorting of Bacteria particles (Beads or cells) from given sample medium can be separated which are of different size. A new scheme has been describes in this paper for a continuous sorting of Bacteria particles that is Mammalian cells (K. Pneumoniea) using Lattice-Shaped and dual-depth microchannel network. Microchannels were sorted on the base of size and it is clearly showed that the angles dominate the separation efficiencies. The problem which occurs during a fluid flow is clogging due to which particles are not separated in proper way can be overcome. The Scheme presented here for a size based particle sorting can be applicable to various biological or industrial experiments for diagnosis to achieve length-dependent sorting of bispherical microparticles. Even experimented at different angles of a lattice surface at 0 or 90 degree, 15 degree, 25 degree and 35 degree for particle sorting of K. Pneumoniae particle from sample which is precisely obtained through outputs. As per the application how this simulation method may be applied to the design of efficient hydrodynamic cell in microfluidic device for size based separation is simulated.
• Panwala Fenil Chetankumar, R.Kumar “Modelling and analysis of asymmetric Sieve shaped Skewed type microchannel network in BioMEMS for mass and size based mammalian cell separation and sorting using filtration method” Revista de la Facultad de Agronomia De La Universidad Del Zulia, ISSN 0378-7818, Volume 34, Issue 4, pp 566-591, 2017. (SCIE) (Impact Factor: 0.30 )
• Panwala Fenil Chetankumar, R. Kumar, Trigunesh Narzary, A Vimala Juliet “An Enhanced and Sieve type microchannel network simulation model to detect the separation of size and mass dependent bacteria in microfluidic device”, Journal of Advanced Research in Dynamical and Control Systems, Elsevier, ISSN 1943-023X, Volume 9, Issue 18, pp 1109-1124, 2017. (SCOPUS) (Impact Factor: 0.40)
Chapter:
• R. Kumar and Panwala Fenil Chetankumar, “Micropatterning in BioMEMS for separation of cells/bioparticles” Book Title: MEMS Sensors- Design and Applications, InTechOpen Publication, Rijeka Croatia-European Union, ISBN:978-1-78923-395-7 and Print ISBN: 978-1-78923-394-0, pp 71-90, 2018. (WEB OF SCIENCE) (BOOK CITATION INDEX).
Patents:
• Dr. R. Kumar, Fenil Chetankumar Panwala, “Sieve/Sifter type 3d microchannel network in biological MEMS for separation and sorting of bioparticles using passive method”, Official Journal of the Patent Office, INDIA, Issue no: 42(2018).
- Patent No.: 422354
- Application No: 201831036289 A
- Filed Date: 19/10/2018
- Status: GRANTED on 20-02-2023
• Dr. R. Kumar, Siddhanta Borah, Subhradip Mukherjee, S.K Sathya Lakshmi Preeth, Panwala Fenil Chetankumar “Pocket Soil Moisture Sensor (P-SMS)” Official Journal of the Patent Office, INDIA.
- Application No: 202131029151 A
- Filed Date: 29/06/2021
- Status: FiledRQ FiledPublished(13-08-2021) Examination Review replied and in amended examination in Dec 2022
• Dr. R. Kumar, Rituraj Bhattarcharjee, Panwala Fenil Chetankumar “Microfluidic Channel Housing with Rounded Micro Masts for Entrapping of Circulating Tumor Cells Employing Deterministic Lateral Displacement Principle” Official Journal of the Patent Office, INDIA.
- Application No: 202131018244 A
- Filed Date: 20/04/2021.
- Status: FiledRQ Filed Published (28-05-2021)