A5083841259- RFID technology advancements
- Energy Harvesting in Wireless Networks
- Antenna Design and Analysis
- Ultrasonics and Acoustic Wave Propagation
- Wireless Power Transfer Systems
- Indoor and Outdoor Localization Technologies
- Advanced Antenna and Metasurface Technologies
- Non-Destructive Testing Techniques
- Antenna Design and Optimization
- Advanced Chemical Sensor Technologies
- Analytical Chemistry and Sensors
- Advanced Sensor and Energy Harvesting Materials
- Full-Duplex Wireless Communications
- Microwave and Dielectric Measurement Techniques
- VLSI and FPGA Design Techniques
- Millimeter-Wave Propagation and Modeling
- Soil Moisture and Remote Sensing
- Particle Accelerators and Free-Electron Lasers
- Electrical and Bioimpedance Tomography
- Telecommunications and Broadcasting Technologies
- Low-power high-performance VLSI design
- Optical Wireless Communication Technologies
- Underwater Vehicles and Communication Systems
- Thermography and Photoacoustic Techniques
- Power Line Communications and Noise
Vivekananda Global University
2024
Indian Space Research Organisation
2024
Michigan State University
2018-2023
Jaypee University of Information Technology
2021
Raman Research Institute
2015
In this paper, we propose a blockchain inspired Internet-of-Things architecture for creating transparent food supply chain. The uses proof-of-object-based authentication protocol, which is analogous to the cryptocurrency's proof-of-work protocol. complete was realized by integrating radio frequency identification (RFID)-based sensor at physical layer and cyber layer. RFID provides unique identity of product data, helps in real time quality monitoring. For purpose, small feature size 900-MHz...
In this paper, an RFID coupled batteryless digital sensor tag is proposed for detecting Ammonia in packaged food. An interdigitated capacitive coated with a thin film of Polyaniline(PANi) that has higher affinity towards used as sensing element. To determining the sensitivity element, (i) Wireless Near field Short range technique (Capacitance change), and (ii) Direct Probing (Resistance change) techniques are evaluated. The short consists inductor to capacitor form LC tank resonance...
In this paper, a harmonic radio frequency identification (hRFID) system is proposed to overcome the challenges that limits capabilities of conventional UHF (RFID) system, such as self-jamming and multi-path interference without any extensive modifications existing infrastructure. The exploits third generation from RFID chips for communication. realized by designing an additional RF interface layer between interrogator tag. transmits query signal at fundamental receives backscattered It down...
This paper describes the design and development of a passive wireless pH sensor tag. Under interrogation, tag changes phase interrogation signal according to pH. The conversion data into information was implemented using electrode coupled shifter. A theoretical study performed on varactor diode parameters highly linear sensitive response with change. In addition, dual frequency operation based fundamental at 2 GHz reply second harmonic (4 GHz) reduce clutter effect. generated double-balanced...
A passive harmonic radio frequency (RF) tag on the pipe with added sensing capabilities is proposed in this paper. Radio identification (RFID) based tagging has already emerged as a potential solution for chemical sensing, location detection, animal tagging, etc. Harmonic transponders are quite popular compared to conventional RFIDs due their improved signal noise ratio (SNR). However, operating frequency, transmitted power and efficiency become critical issues underground RFIDs. In paper,...
In this letter, a single-antenna-based compact harmonic RFID tag having efficient power harvesting topology is demonstrated. The receives continuous signal at the fundamental frequency ( f o = 434 MHz) and replies back with modulation second (2 868 MHz). To enhance read range, was designed to harvest energy simultaneously while performing in mode. Furthermore, allows use of lower rates reduce consumption, thus further enhancing range. Performance different Overall, demonstrated range 8 m...
We develop a high-Q capacitive sensing based robust non-destructive evaluation (NDE) methodology that can be widely used in varied NDE applications. show the proposed method detect defects host of regimes where uncertainties such as lift-off, probe tilt, fluctuations sampling rates, and step sizes are inherent data collection process. explicitly characterize corruption due to various lift-off uncertainties. use Bayesian decision theoretic approach rigorously understand impact these...
3D additive printing have been employed recently for manufacturing a wide variety of Radio Frequency (RF) components on planar and conformal structures. The design modeling step requires an accurate electromagnetic (EM) characterization the printed dielectric material at RF frequencies. broadband extraction techniques are based best fitting simulated to measured scattering (S) parameters. simulation is Finite Element Method (FEM) solver full-wave fields measurement was obtained through...
In this paper, an efficient passive wireless harmonic communication system is proposed for the real-time monitoring of pressurized pipelines. A pressure sensor fabricated using additive manufacturing technique and a radio frequency (RF) tag designed to operate at fundamental (fo) 2 GHz that shifts phase back reflected RF signal according applied ranging from 0 20 psi. power modulation with virtually no losses achieved hybrid coupler-based shifter efficiently reflect incoming end coupled...
this paper investigates the antenna-to-antenna spatial correlation of a multi-consumer millimeter-wave (mm Wave) system, considering angular spread every randomly located antenna inside mobile. A signal-power-dependent model based on azimuth perspective domain is proposed. Furthermore, an iterative clustering set rules for unmarried-cellular beam forming advanced and analyzed to quantify performance multi-user mm Wave structures. Simulation outcomes show that after exceeds 20°, must be...
3D printing has emerged as a potential solution to fabricate different RF components and embed prepackaged devices. In this work, printed interposer layer is proposed enable vertical stacking of heterogeneous substrates. Different design parameters were first simulated using HFSS optimize for maximum possible bandwidth. After optimization, the used wireless battery less digital modulator an example IoT device. Measurement results are provided validate simulation results.
In this paper, a PSK based modulation scheme is proposed in the RFID framework for transmitting at high bit rates from tag. The circuit compatible with existing passive tag RF front end circuit. useful speed sensor integrated applications. and demodulation circuits are fabricated on PCB measurement results reported.
In this paper, the scope of harmonic RFID for using in body area network based batteryless implants is evaluated. The conventional becomes limited under very low tag modulation frequency and/or strong cluttered environment. Both conditions are applicable biological implants. However, use can solve both problems by operating at two different frequencies. Non Linear Transmission Line key element generating other / second interrogation signal. A detailed design procedure described to construct...
Microwave-induced thermoacoustic imaging (TAI) is a hybrid technique that combines electromagnetic radiation and ultrasonic waves to achieve high contrast submillimeter spatial resolution. These characteristics make TAI good candidate detect material anomalies change the electric properties without noticeable variation in density. Conventional pulsed systems work by sending single short pulse imaged target then detecting generated pressure signal; therefore, very peak power microwave or data...
In this paper an overview of Ultra High Frequency RFID reader antenna for retail self-billing applications has been discussed. As each application management vary region the role becomes important. Here all requirements UHF and their performance practical have analysed compared with various exiting design. An example at centre frequency 900Mz 4.5dBi gain is
Abstract In this paper, a near-field wireless thin-film coated RFID compatible sensor tag is presented for profiling packaged food volatiles at room temperature. The consists of interdigitated capacitor interrogated in two different configurations: (i) direct-wired configuration, and (ii) configuration. Polyaniline (PANi) chosen as the thin film to be on due its specificity towards food, detection Ammonia. sensitivity characterized temperature atmospheric pressure. concentration Ammonia gas...
Abstract A miniaturized antenna is required for a small form factor RFID tag. For harmonic tag, the tag should be capable of receiving and transmitting at two different frequencies (fundamental harmonic). Implementation antennas operation would increase footprint antenna. Hence, an optimized structure proposed, which will have while maintaining considerable gain. The dual band fundamental frequency transmit information size. has rectangular board dimension 96.5 mm 81 with resonance 434 MHz...
Abstract There has been growing interest in the use of passive harmonic RFIDs for diverse range applications. Conventional are prone to self-jamming and multipath interference, these challenges can be mitigated using RFID design. Recently several designs have demonstrated. However, there many related, packaging intellectual property associated with new tag designs. It well known that conventional produce content, which is typically suppressed reduce background noise. Previous experiments...