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Loubet, G., Takacs, A., Dragomirescu, D., Shetty, D., Grosinger, J., Gu, X., Hemour, S., Dejous, C., Wu, K., Chaves, H., Torres, R., & Carvalho, N. B. (2025). Wirelessly Powered Battery-Free Sensing Nodes for Internet of Things Applications. IEEE Microwave Magazine, 26(7), 26-46. External link
Gu, X., De Almeida, J. V., Hemour, S., Khazaka, R., & Wu, K. (2024). Temperature-Stable Low-Power RF-to-dc Dickson Charge Pump Rectifiers for Battery-Free Sensing and IoT Systems. IEEE Journal of Radio Frequency Identification, 3423711 (12 pages). External link
Palazzi, V., Correia, R., Gu, X., Hemour, S., Wu, K., Costanzo, A., Masotti, D., Fazzini, E., Georgiadis, A., Kazemi, H., Pereira, R., Shinohara, N., Schreurs, D., Chiao, J.-C., Takacs, A., Dragomirescu, D., & Carvalho, N. B. (2023). Radiative Wireless Power Transfer: Where We Are and Where We Want to Go. IEEE Microwave Magazine, 24(2), 57-79. External link
Niotaki, K., Carvalho, N. B., Georgiadis, A., Gu, X., Hemour, S., Wu, K., Matos, D., Belo, D., Pereira, R., Figueiredo, R., Chaves, H., Mendes, B., Correia, R., Oliveira, A., Palazzi, V., Alimenti, F., Mezzanotte, P., Roselli, L., Benassi, F., ... Shinohara, N. (2023). RF Energy Harvesting and Wireless Power Transfer for Energy Autonomous Wireless Devices and RFIDs. IEEE Journal of Microwaves, 3(2), 763-782. External link
Gu, X., Hemour, S., & Wu, K. (2022). Far-Field Wireless Power Harvesting: Nonlinear Modeling, Rectenna Design, and Emerging Applications. Proceedings of the IEEE, 110(1), 56-73. External link
Gu, X., Grauwin, L., Dousset, D., Hemour, S., & Wu, K. (2021). Dynamic Ambient RF Energy Density Measurements of Montreal for Battery-Free IoT Sensor Network Planning. IEEE Internet of Things Journal, 8(17), 13209-13221. External link
Gu, X., De Almeida, J. V., Hemour, S., Khazaka, R., & Wu, K. (2021). Nonlinearity and parameterization of Schottky diodes-based battery-free harmonic transponder for millimeter-wave 5G applications. Applied Physics Letters, 119(6), 5 pages. External link
Gu, X., Lin, W., Hemour, S., & Wu, K. (2021). Readout Distance Enhancement of Battery-Free Harmonic Transponder. IEEE Transactions on Microwave Theory and Techniques, 69(7), 3413-3424. External link
Gu, X., Burasa, P., Hemour, S., & Wu, K. (2021). Recycling Ambient RF Energy: Far-Field Wireless Power Transfer and Harmonic Backscattering. IEEE Microwave Magazine, 22(9), 60-78. External link
Guo, L., Gu, X., Chu, P., Hemour, S., & Wu, K. (2020). Collaboratively Harvesting Ambient Radiofrequency and Thermal Energy. IEEE Transactions on Industrial Electronics, 67(5), 3736-3746. External link
Gu, X., Guo, L., Hemour, S., & Wu, K. (2020). Optimum Temperatures for Enhanced Power Conversion Efficiency (PCE) of Zero-Bias Diode-Based Rectifiers. IEEE Transactions on Microwave Theory and Techniques, 68(9), 4040-4053. External link
Gu, X., Nikhiln, S. N., Guo, L., Hemour, S., & Wu, K. (2019). Diplexer-Based Fully Passive Harmonic Transponder for Sub-6-GHz 5G-Compatible IoT Applications. IEEE Transactions on Microwave Theory and Techniques, 67(5), 1675-1687. External link
Vandelle, E., Bui, D. H. N., Vuong, T. P., Ardila, G., Wu, K., & Hemour, S. (2019). Harvesting Ambient RF Energy Efficiently with Optimal Angular Coverage. IEEE Transactions on Antennas and Propagation, 67(3), 1862-1873. External link
Gu, X., Liu, W., Guo, L., Hemour, S., Formosa, F., Badel, A., & Wu, K. (2018). Hybridization of integrated microwave and mechanical power harvester. IEEE Access, 6, 13921-13930. External link
Gu, X., Hemour, S., Guo, L., & Wu, K. (2018). Integrated Cooperative Ambient Power Harvester Collecting Ubiquitous Radio Frequency and Kinetic Energy. IEEE Transactions on Microwave Theory and Techniques, 66(9), 4178-4190. External link
Zhao, Y., Hemour, S., Liu, T., & Wu, K. (2018). Nonuniformly Distributed Electronic Impedance Synthesizer. IEEE Transactions on Microwave Theory and Techniques, 66(11), 4883-4897. External link
Zhao, Y., Hemour, S., Chen, H., Liu, T., & Wu, K. (2018). Power-handling capacity and nonlinearity analysis for distributed electronic impedance synthesizer. IEEE Transactions on Circuits and Systems I: Regular Papers, 65(4), 1340-1348. External link
Lorenz, C. H. P., Hemour, S., & Wu, K. (2016). Physical Mechanism and Theoretical Foundation of Ambient RF Power Harvesting Using Zero-Bias Diodes. IEEE Transactions on Microwave Theory and Techniques, 64(7), 2146-2158. External link
Lorenz, C. H. P., Hemour, S., Li, W., Xie, Y., Gauthier, J., Fay, P., & Wu, K. (2015). Breaking the Efficiency Barrier for Ambient Microwave Power Harvesting With Heterojunction Backward Tunnel Diodes. IEEE Transactions on Microwave Theory and Techniques, 63(12), 4544-4555. External link
Lorenz, C. H. P., Hemour, S., Liu, W., Badel, A., Formosa, F., & Wu, K. (2015). Hybrid power harvesting for increased power conversion efficiency. IEEE Microwave and Wireless Components Letters, 25(10), 687-689. External link
Adhikari, S., Hemour, S., Ghiotto, A., & Wu, K. (2015). Magnetically tunable ferrite-loaded half-mode substrate integrated waveguide. IEEE Microwave and Wireless Components Letters, 25(3), 172-174. External link
Wang, W., Hemour, S., & Wu, K. (2014). Coupled resonance energy transfer over gigahertz frequency range using ceramic filled cavity for medical implanted sensors. IEEE Transactions on Microwave Theory and Techniques, 62(4), 956-964. External link
Hemour, S., & Wu, K. (2014). Radio-frequency rectifier for electromagnetic energy harvesting: Development path and future outlook. Proceedings of the IEEE, 102(11), 1667-1691. External link
Hemour, S., Zhao, Y., Lorenz, C. H. P., Houssameddine, D., Gui, Y., Hu, C.-M., & Wu, K. (2014). Towards low-power high-efficiency RF and microwave energy harvesting. IEEE Transactions on Microwave Theory and Techniques, 62(4), 965-976. External link
Gu, X., Hemour, S., Khazaka, R., & Wu, K. Improving Temperature Stability of Dickson Charge Pump Rectifiers for Battery-Free Wireless Sensing Applications [Paper]. 2023 IEEE/MTT-S International Microwave Symposium (IMS 2023), San Diego, CA, USA. External link
Gu, X., De Almeida, J. V., Hemour, S., Khazaka, R., & Wu, K. (2022, July). Thermal effects on low-power RF-to-dc voltage multiplier for battery-free sensing and IoT [Paper]. Wireless Power Week (WPW 2022), Bordeaux, France. External link
Gu, X., Dousset, D., Wu, K., Grauwin, L., & Hemour, S. (2020, July). Ambient Radiofrequency Energy Mapping of Montreal for Far-Field Wireless Power Harvesting [Paper]. IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (IEEECONF 2020), Montréal, Québec. External link
Gu, X., Wu, K., & Hemour, S. (2020, July). Remote Temperature Sensing Based on Battery-Free Harmonic Backscattering [Paper]. IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (IEEECONF 2020), Montréal, Québec. External link
Xiaoqiang, G., Hemour, S., & Wu, K. (2020, August). Wireless powered sensors for battery-free IoT through multi-stage rectifier [Paper]. 23rd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS 2020), Rome, Italy (4 pages). External link
Vandelle, E., Ardila, G., Hemour, S., Wu, K., & Vuong, T.-P. (2019, June). Compact Dual-Band Rectenna on a New Paper Substrate Based on Air-Filled Technology [Paper]. IEEE Wireless Power Transfer Conference (WPTC 2019), London, UK. External link
Gu, X., Hemour, S., & Wu, K. (2019, June). Improving Conversion Loss Performance of Fully Passive Harmonic Transponder at Low Temperature [Paper]. IEEE Wireless Power Transfer Conference (WPTC 2019), London, UK. External link
Gu, X., Hemour, S., & Wu, K. (2019, September). Low thermally activated schottky barrier rectifier: A new class of energy harvester [Paper]. IEEE International Conference on RFID Technology and Applications (RFID-TA 2019), Pisa, Italy. External link
Vandelle, E., Vuong, T.-P., Ardila, G., Hemour, S., & Wu, K. (2019, October). Miniaturized Antenna on a Paper Substrate [Paper]. 49th European Microwave Conference (EuMC 2019), Paris, France. External link
Vandelle, E., Vuong, T.-P., Ardila, G., Hemour, S., & Wu, K. (2019, October). Modular and Reconfigurable Rectenna Unitcells with Beam-Forming Properties [Paper]. 49th European Microwave Conference (EuMC 2019), Paris, France. External link
Gu, X., Hemour, S., & Wu, K. (2019, October). Reconfigurable Nonlinear Circuit for Wireless Power Harvesting and Backscattering [Paper]. 49th European Microwave Conference (EuMC 2019), Paris, France. External link
Xiaoqiang, G., Lei, G., Harouna, M., Hemour, S., & Wu, K. (2018, June). Accurate Analytical Model for Hybrid Ambient Thermal and RF Energy Harvester [Paper]. IEEE/MTT-S International Microwave Symposium (IMS 2018), Philadelphia, PA. External link
Gu, X., Guo, L., Hemour, S., & Wu, K. (2018, August). Analysis and Exploitation of Diplexer-based Fully Passive Harmonic Transponder for 5G Applications [Paper]. IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies (IMWS-5G), Dublin, Ireland (3 pages). External link
Gu, X., Hemour, S., & Wu, K. (2018, November). Enabling Far-Field Ambient Energy Harvesting Through Multi-Physical Sources [Paper]. Asia-Pacific Microwave Conference (APMC 2018), Kyoto, Japan. External link
Vandelle, E., Bui, D. H. N., Ardila, G., Hemour, S., Wu, K., & Vuong, T.-P. (2018, October). Folded Patch Antenna on Paper for RF Energy Harvesting and Sensing Applications [Paper]. International Conference on Advanced Technologies for Communications (ATC 2018), Ho Chi Minh City, Vietnam. External link
Gu, X., Guo, L., Hemour, S., & Wu, K. (2018, June). Novel Diplexer-based Harmonic Transponder for 5G-compatible IoT Applications [Paper]. IEEE Wireless Power Transfer Conference (WPTC 2018), Montréal, Qc, Canada (4 pages). External link
Guo, L., Gu, X., Hemour, S., & Wu, K. (2018, May). Reactive frequency downconverter for low power harvesting applications [Paper]. IEEE MTT-S International Wireless Symposium (IWS 2018), Chengdu, China (4 pages). External link
Vandelle, E., Vuong, T. P., Ardila, G., Hemour, S., & Wu, K. (2018, June). Rectenna with Enhanced Aperture Efficiency and a Bi-directional Pattern for Ambient RF Energy Harvesting [Paper]. IEEE Wireless Power Transfer Conference (WPTC 2018), Montréal, Qc, Canada (4 pages). External link
Vandelle, E., Doan, P.-L., Bui, D. H. N., Vuong, T. P., Ardila, G., Wu, K., & Hemour, S. (2017, May). High gain isotropic rectenna [Paper]. IEEE Wireless Power Transfer Conference (WPTC 2017), Taipei, Taiwan (4 pages). External link
Gu, X., Hemour, S., & Wu, K. (2017, May). Integrated cooperative radiofrequency (RF) and kinetic energy harvester [Paper]. IEEE Wireless Power Transfer Conference (WPTC 2017), Taipei, Taiwan (3 pages). External link
Lorenz, C. H. P., Hemour, S., & Wu, K. (2015, August). Modeling and influence of matching network insertion losses on ambient microwave power harvester [Paper]. IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO 2015), Ottawa, ON (3 pages). External link
Lorenz, C. H. P., Hemour, S., Wenjun, L., Yi, X., Gauthier, J., Fay, P., & Wu, K. (2015, May). Overcoming the efficiency limitation of low microwave power harvesting with backward tunnel diodes [Paper]. IEEE MTT-S International Microwave Symposium (IMS 2015), Phoenix, Arizona (4 pages). External link
Hemour, S., & Wu, K. (2015, March). Reactive nonlinearity for low power rectification [Paper]. IEEE International Wireless Symposium (IWS 2015), Shenzhen, China (4 pages). External link
Hemour, S., Lorenz, C. H. P., & Wu, K. (2015, May). Small-footprint wideband 94GHz rectifier for swarm micro-robotics [Paper]. IEEE MTT-S International Microwave Symposium (IMS 2015), Phoenix, Arizona (4 pages). External link
Hemour, S., Adhikari, S., Ghiotto, A., & Wu, K. (2014, June). Low magnetic biased SIW-based isolator: Effect of the rising temperature on the performance of the isolator [Paper]. 15th IEEE Annual Wireless and Microwave Technology Conference (WAMICON 2014), Tampa, Florida, USA (3 pages). External link
Ladan, S., Hemour, S., & Wu, K. (2013, April). Towards millimeter-wave high-efficiency rectification for wireless energy harvesting [Paper]. IEEE International Wireless Symposium (IWS 2013), Beijing, China. External link
Adhikari, S., Ghiotto, A., Hemour, S., & Wu, K. (2013, June). Tunable non-reciprocal ferrite loaded SIW phase shifter [Paper]. IEEE MTT-S International Microwave Symposium (IMS 2013), Seattle, Wash., USA (3 pages). External link
Ladan, S., Hemour, S., & Wu, K. (2012, October). A millimeter-wave wideband microstrip RF and DC grounding [Paper]. 42th European Microwave Conference Proceeding (EuMC 2012), Amsterdam, Netherlands. External link
Hemour, S., Houssameddine, D., Whig, R., Slaughter, J. M., Nagel, K., Aggarwal, S., Gui, Y., Hu, C.-M., & Wu, K. (2012, June). Spintronics-based devices for Microwave Power Harvesting [Paper]. IEEE MTT-S International Microwave Symposium (IMS 2012), Montréal, Québec. External link
Hemour, S., & Wu, K. (2014, August). New RF diode technology based on spintronics [Abstract]. 31st URSI General Assembly and Scientific Symposium (URSI GASS 2014), Beijing, China (1 page). External link
