| A Three-Port Zero-Power RFID Wireless Sensor for IoT ApplicationsThis paper proposes a novel battery-less wireless sensor architecture. The sensor architecture is fully passive which integrates a UHF RFID with a capacitance-based sensor. The sensor passively varies the phase of the backscattered RFID signal based on the sensed value. The phase alteration is easily determined at the receiver using a non-coherent IQ demodulation technique. The passive nature of this sensor keeps the read range of a regular UHF RFID tag unaffected, making it ideal for home and industrial applications.
University of Alberta | Publication | 2021-02-17 | N Khalid, Hossein Saghlatoon, Honari M, Mirzavand, R., Pedram Mousavi |
| Data-Driven Decision-Making Strategy for Thermal Well Completion University of Alberta | Publication | 2022-01-01 | Hossein Izadi, Morteza Roostaei, Mahdi Mahmoudi, Giuseppe Rosi, Jesse Stevenson, Aubrey Tuttle, Colby Sutton, Mirzavand, R., Leung, J., Vahidoddin Fattahpour |
| Low Ripple Envelope Detection for Load Modulated Communication in SWIPTIn this work we propose a new design methodology for envelope detectors in amplitude shift keyed communication. The method's premise is that a deliberately designed distortion can significantly improve the performance of a data receiver by reducing the bit error rate (BER). The main significance is in simultaneous wireless information and power transfer (SWIPT) applications where this envelope detector can be used to improve the recovery of messages transmitted from battery-less units employing load modulation. The key principle is the reduction of ripple voltage, which allows a battery-less unit to use a smaller modulation depth and thus remain in an impedance matched condition while receiving power and transmitting data simultaneously. A design criterion was developed to enable this improvement and implemented in a software-defined receiver (SDR). Data was transmitted through a wireless power transfer system designed for Qi purposes and recovered using the SDR, from which BER plots were produced and it was shown that the design indeed maximizes the performance.
University of Alberta | Publication | 2020-12-24 | "Semion Belau", Susanna Vital de Campos de Freitas, Fabiano Domingos, Mirzavand, R., Pedram Mousavi |
| Unsupervised PSD Clustering to Assess Reservoir Quality Along the Horizontal Wells: An Efficient Inflow Control Devices Design University of Alberta | Publication | 2023-03-10 | Hossein Izadi, Morteza Roostaei, Mahdi Mahmoudi, Giuseppe Rosi, Jesse Stevenson, Aubrey Tuttle, Colby Sutton, Mirzavand, R., Leung, J., Vahidoddin Fattahpour |
| Smarter Canadian Oil Production using Wireless TechnologiesLightning Poster presented on the 2020 Future Energy Systems Research to the Real World Industry Mixer event. University of Alberta | Activity | 2020-02-20 | Fabiano Domingos, Mirzavand, R., Susanna Vital de Campos de Freitas, Pedram Mousavi |
| Wireless Communication and Power Delivery to Sensors in Heavy Oil ProductionPoster presented on the 2020 Future Energy Systems Digital Research Showcase. University of Alberta | Activity | 2020-11-23 | Fabiano Domingos, Mirzavand, R. |
| Apparatus and methods for wireless/RFID sensorsUSPTO Patent No.: US 11,238,725
Application No.: 62472111
No. PCT/CA2018/050306
Abstract: A wireless sensor is provided for use in near-to-zero or zero-power consumption applications. The sensor includes a sensing circuit, a modulator connected to the sensing circuit and configured to modulate an input signal using variations in input impedance produced by the sensing circuit to produce a modulated output signal, and a transmitting element such as an antenna to transmit the modulated output signal to a receiver. In some implementations, the sensor includes a pilot sequence generator that may be powered by a received signal from a transmitting node. The input signal is thus modulated by both pilot data and the input impedance. The input signal may be received from the transmitting node. Alternatively, a power source may be provided in the wireless sensor for generating the input signal and/or pilot data. University of Alberta | IP Management | 2022-02-01 | Mirzavand, R., Mahdi Honari Honari Mahdi, Pedram Mousavi |
| A Battery-Less Non-Hybrid Six-Port RFID-Based Wireless Sensor Architecture for IoT Applications University of Alberta | Publication | 2023-03-20 | Nabil Khalid, Iyer, A., Mirzavand, R. |
| A Battery-Less RFID Sensor Architecture with Distance Ambiguity Resolution for Smart Home IoT Applications University of Alberta | Publication | 2021-07-06 | Nabil Khalid, Mirzavand, R., Hossein Saghlatoon, Mohammad Mahdi Honari, Iyer, A., Pedram Mousavi |
| A Battery-Less Six-Port RFID-Based Wireless Sensor Architecture for IoT Applications University of Alberta | Publication | 2022-03-22 | Nabil Khalid, Iyer, A., Mirzavand, R. |
| A Survey on Battery-Less RFID-Based Wireless Sensors University of Alberta | Publication | 2021-01-01 | Nabil Khalid, Mirzavand, R., Iyer, A. |
| A Three-Port Zero-Power RFID Sensor Architecture for IoT Applications University of Alberta | Publication | 2020-04-06 | N KHALID, Mirzavand, R., Hossein Saghlatoon, Honari M, Pedram Mousavi |
| Characterization of a Resonant Capacitively Coupled Wireless Power Transfer System for Communication Purposes at 6 MHzThis work characterizes a wireless power transmission (WPT) system operating at the 6 MHz frequency band for wireless information transfer purposes. To perform the characterization, the channel is modelled using its 2‐port network scattering parameters. Then, a long string of symbols encoded with on–off keying and modified Miller encoding is passed through the channel model at various data rates. The original data is recovered from the channel output signal using a software‐defined receiver. Bit error rate curves and eye diagrams are created for each encoding scheme and data rate. To verify the simulated results, the aforementioned data strings are transferred through the actual WPT system and output signals are post‐processed in the digital domain with the same software‐defined receiver. For comparison purposes, the performance of the WPT channel is compared to that of a conventional wireless communication channel with a flat additive white Gaussian noise model. The simulation and measurement results demonstrate that the provided WPT system can be used for data transfer with an acceptable error rate. University of Alberta | Publication | 2021-02-05 | S Belau, Fabiano Domingos, S de Campos Vital, Mirzavand, R., Pedram Mousavi |
| Detection of soil moisture, humidity, and liquid level using CPW based interdigital capacitive sensor University of Alberta | Publication | 2022-06-01 | Shaheen Ahmad, Nabil Khalid, Mirzavand, R. |
| Fixed-Frequency Low-Loss Dielectric Material Sensing Transmitter University of Alberta | Publication | 2020-03-06 | Hossein Saghlatoon, Mirzavand, R., Pedram Mousavi |
| High-Resolution Dielectric Constant Measurement Using a Sensor Antenna with an Allocated Link for Data Transmission University of Alberta | Publication | 2020-07-27 | M Behdani, Honari M, Hossein Saghlatoon, Melzer J, Mirzavand, R. |
| Wireless Capacitive Liquid-Level Detection Sensor Based on Zero-Power RFID-Sensing Architecture University of Alberta | Publication | 2022-12-25 | Shaheen Ahmad, Ramin Khosravi, Iyer, A., Mirzavand, R. |
