Department of Microelectronics
Faculty of Electrical Engineering, Mathematics, and Computer Science

MSc Javad Bathaei

PhD student
Electronic Components, Technology and Materials (ECTM), Department of Microelectronics

Themes: Health and Wellbeing

Biography

Javad completed his bachelor’s degree in Materials science and engineering at University of Tehran in February 2020. During last 2 years of bachelor studies, he joined the Mechanical Properties Laboratory where he focused on fabrication of biocompatible titanium-based nanocomposites. He earned a master’s degree in biomedical sciences and engineering from Koç University in Turkey (October-2023). During the graduate studies, Javad focused on development of new compatible microfabrication methods for building biodegradable/bioresorbable device. Toward this end, he worked on development of a recipe to photolithographically pattern the metal on various biodegradable substrates (2020-2022). Additionally, as his master’s topic, Javad focused on development of a microfabrication strategy based on the stencil lithography by utilizing DRIE-based silicon stencil to pattern the biodegradable material (2022-2023). Besides, he involved in several side projects where he earned experience about development and characterization of miniaturized capacitive and piezoelectric-based sensors.

In November 2023, Javad joined TU Delft as a PhD candidate in Biodegradable Technologies Laboratory, Department of Microelectronics. His focus of research will be the development of biodegradable sensors for ecological monitoring applications. As we strive for a more sustainable future, biodegradable sensors offer a glimpse into the possibilities of eco-friendly technology. With their ability to provide accurate data while minimizing environmental impact, these sensors have the potential to revolutionize industries and contribute to a greener world.

Publications

  1. Biodegradable microwave cavity resonator
    M. J. Bathaei; S. Hashemizadeh; F. A. Cardoso; D. Nikolayev; C. M. Boutry;
    IEEE Microwave and Wireless Technology Letters,
    2025.

  2. Biodegradable Microwave Cavity Resonator
    Bathaei, Mohammad Javad; Hashemizadeh, Sina; Arroyo Cardoso, Filipe; Nikolayev, Denys; Boutry, Clementine M.;
    IEEE Microwave and Wireless Technology Letters,
    pp. 1-4, 2025. DOI: 10.1109/LMWT.2025.3588738
    Keywords: ... Impedance;Biomembranes;Sensors;Antennas;Wireless sensor networks;Resonant frequency;Resonance;Couplers;Wireless communication;Robot sensing systems;3-D printing;biodegradable materials;cavity resonator;laser cutting.

    Abstract: ... This letter presents the first fabrication and characterization of a biodegradable coaxial cavity resonator, focusing on the measurement of complex permittivity of encapsulation as well as |S11| and impedance parameters. The resonator components are 3D-printed from plant-based resin, coated with silver-coated copper flakes, and enclosed by a laser-cut zinc membrane. A monopole coupler antenna, inspired by the “Great Seal Bug,” is co-designed with the cavity to enable near-field coupling and achieve frequency-selective, near- 50 Ω impedance-matched wireless sensing. Numerical and experimental analysis of the gap between post and membrane (G-post), and between the coupler antenna and post, resulted in | S11| of −30.3 dB at 1.7 GHz, and a quality factor of 307, outperforming existing flat biodegradable resonators. A 40-MHz resonance shift is observed with a 20 μ m variation in G-post, highlighting the resonator’s high sensitivity to membrane position. This system enables battery-free wireless sensing with biodegradable antennas for biodiversity monitoring.

BibTeX support

Last updated: 17 Nov 2023

Javad Bathaei

MSc project proposals