Dr. Mehdi Hajizadegan is a Technology Lead supporting Avantech’s growing patent litigation and prosecution practice groups. As a registered patent agent with a Ph.D. in Electrical Engineering, Mehdi focuses on supporting comprehensive pre-litigation case assessments and providing technical guidance in patent litigation. He plays a critical role in analyzing and elucidating complex technical concepts to assist our legal teams in crafting well-informed strategies and arguments. His practice also includes preparing and prosecuting patent applications, conducting patentability and freedom-to-operate analyses, and performing prior art searches.
Leveraging his electrical engineering background, Mehdi has gained extensive experience across a wide range of technology areas, including semiconductors, MEMS, optics, electrical circuits, telecommunications, wireless systems, artificial intelligence, software, sensor systems, and biomedical devices. With this background, he provides insightful solutions to complex challenges across various industries and technologies.
Before transitioning to the legal field, Mehdi worked as an Entrepreneurial Lead for the National Science Foundation Innovation Corps. In this position, he collaborated as a technical lead on a wireless sensor for human eye pressure monitoring.
Mehdi’s doctoral research at the University of Illinois at Chicago specialized in self-powered multi-function harmonics-based wireless sensing systems using graphene bioelectronics. While pursuing his doctorate degree, Mehdi also worked as a graduate research and teaching assistant with the Electrical and Computer Engineering Department. He designed and analyzed a variety of wireless sensing systems in combination with artificial intelligence for Telehealth applications.
Ph.D., Electrical and Computer Engineering, University of Illinois at Chicago
M.S., Electrical and Computer Engineering, Tarbiat Modares University
B.S., Electrical and Computer Engineering, Shahid Rajaei University
“Superdirective leaky radiation from a PT-synthetic metachannel.” Optics Express, vol. 29, No. 8, pp. 12330-12343, 2021.
“Machine Learning Assisted Multi-Functional Graphene-Based Harmonic Sensors.” IEEE Sensors Journal, vol. 21, No. 6, pp. 8333 - 8340, 2020.
“High-sensitivity wireless displacement sensing enabled by PT-symmetric telemetry.” IEEE Transactions on Antennas & Propagation, vol. 67, 3445-3449, 2019.
“Experimental observation of PT symmetry breaking near divergent exceptional points.” Physical Review Letters, vol. 123, no. 19, p. 193901, 2019.
“Generalized Parity-Time symmetry condition for enhanced sensor telemetry.” Nature Electronics, vol. 1, No. 5, p. 297, 2018.
“Robust extended-range wireless power transfer using a higher-order PT-symmetric platform” Physical Review Research, vol. 2, no. 1, p. 013152, 2020.
“Ultrasensitive, parity-time symmetric wireless reactive and resistive sensors.” IEEE Sensors Journal, vol. 18, No. 23, pp. 9548-9555, 2018.
“Hyperbolic metamaterial-based plasmoelectronic nanodevices for detection and harvesting of infrared radiation.” In Micro-and Nanotechnology Sensors, Systems, and Applications X, vol. 10639, p. 106390M. Int. Soc. Opt. Photonics, 2018.
“Graphene sensing modulator: toward low-noise, self-powered wireless microsensors.” IEEE Sensors Journal, vol. 17, No. 22, p. 7239, 2017.
“Giant photoresponsivity of midinfrared hyperbolic metamaterials in the photon-assisted-tunneling regime.” Physical Review Applied, vol. 5, No. 4, p.041001, 2016. [This paper has been selected as Editors’ Suggestion of Physical Review Applied.]
“Toward transparent and self-activated graphene harmonic transponder sensors.” Applied Physics Letters, vol.108, No.17, p.173503, 2016.
“Efficient, broadband and wide-angle hot-electron transduction using metal-semiconductor hyperbolic metamaterials.” Nano Energy, vol. 26, pp.371-381, 2016.
“Design and analysis of ultrafast and tunable all optical metamaterial switch enhanced by metal nanocomposite” Journal of Lightwave Technology, vol. 31, pp. 1877-1883, 2013.
“All-optical metamaterial switch based on Kerr effect with MWCNT composite” Physica E: Low-dimensional Systems and Nanostructures, vol. 48, pp. 1-6, 2013.
“All optical SRR switch using carbon nanotube composite.” Optik-International Journal for Light and Electron Optics, vol. 125, No.16, pp. 4405-4410, 2014.
“Highly Directive Leaky-Wave Antennas Based On PT-Symmetric Metasurfaces.” In International Conference on Electromagnetics in Advanced Applications (ICEAA), 2019 Granada, Spain.
“A PT-Symmetric Metasurface and Its Exotic Waveguiding and Radiation Properties.” META 2019, Lisbon, Portugal, July 2019.
“Gesture Recognition Using A Portable and Flexible Meta-Atom Panel and Machine Learning.” In Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2019 IEEE International Symposium on, Atlanta, GA.
“PT-symmetric inductive displacement sensors.” In 2018 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP), pp. 1-3. IEEE, 2018.
“Harmonics-Based RFID Sensor Based on Graphene Frequency Multiplier and Machine Learning.” In Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2018 IEEE International Symposium on, pp. 1621-1622. IEEE, 2018.
“Parity-Time symmetric leaky-wave metasurfaces.” National Radio Science Meeting (URSI 2018), Boulder, Colorado, US, 2018.
“A self-powered harmonic sensor based on simple graphene circuit and hybrid-fed antenna.” In Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2017 IEEE International Symposium on, pp. 581-582. IEEE, 2017.
“Ultrasensitive Parity-Time symmetric wireless microsensors.” National Radio Science Meeting (URSI 2017), Boulder, Colorado, US, 2017.
“Efficient rectification of infrared radiation using nano-rectennas and slow-light microstructure.” 2016 IEEE International Symposium on Antennas and Propagation/USNC-URSI National Radio Science Meeting, Fajardo, Puerto Rico, 2016.
“Efficient, broadband and wide-angle hot-electron photoemission: a metamaterial approach.” National Radio Science Meeting (URSI 2016), Boulder, Colorado, US, 2016.
“Self-Powered and transparent all-graphene biosensor.” IEEE SENSORS 2016 Conference in Orlando, Florida, 2016.
“Design of a tunable all-optical metamaterial switch enhanced by metal nanocomposite.” 19th Iranian Conference on Optics and Photonics (ICOP), Zahedan University, Iran, 2013.
“Investigation of density and distribution of metal nanoparticles effect on the plasmonic absorption in metal nanocomposite using FEM.” 1st National Congress and Workshop on Nanoscience and Nanotechnology (NCWNN), Tarbiat Modares University, Tehran, Iran, 2013.
“Design of a Kerr effect based terahertz all-optical switch using metallic nanocomposite metamaterial structure.” Second Conference on Millimeter -Wave and Terahertz Technologies (MMWaTT), Tehran University, Iran, 2012.
“Design and implementation of a new optical microphone independent of membrane structure technology.” 2nd Iranian Conference on Optic and Laser Engineering (ICOLE), Isfahan, Iran, 2011.
P.Y. Chen, M. Sakhdari, M. Hajizadegan, M.M. Cheng, “Parity-Time (PT)-Symmetric Wireless Telemetric Sensors and Systems,” U.S. Patent Application 16/504,664, Jan. 2020.
