Scientific Papers

Additively Manufactured Millimeter-Wave Dual-Band Single-Polarization Shared Aperture Fresnel Zone Plate Metalens Antenna

A dual-band Fresnel zone plate (FZP) antenna using 3D-printed metagrids enables multi-band sensing and communication with high peak gains at 75 and 120 GHz.

Zhu, J., et al. (2021) Additively Manufactured Millimeter-Wave Dual-Band Single-Polarization Shared Aperture Fresnel Zone Plate Metalens Antenna, in: IEEE Transactions on Antennas and Propagation Volume: 69, Issue: 10, Journal Article, IEEE 2021

Compact Multilayer Bandpass Filter Using Low-Temperature Additively Manufacturing Solution

This article presents a 3D-printed bandpass filter for circuit-in-package applications at 12.25 GHz, offering compact size, wide bandwidth, and multi-layer integration for TV, radar, and satellite use.

Li M., et al. (2021) Compact Multilayer Bandpass Filter Using Low-Temperature Additively Manufacturing Solution, in: IEEE Transactions on Electron Devices, Volume: 68, Issue: 7, July 2021

Unique multi-level metal layer electronics solutions offered by advanced 3D printing

Integrated AME using 3D printing enables compact circuit-in-package designs with multilayer filters and antennas, allowing high-frequency applications and stacked metamaterials in small form factors.

Li M., et al. (2022) Unique multi -level metal layer electronics solutions offered by advanced 3D printing, in: 2022 6th IEEE Electron Devices Technology & Manufacturing Conference (EDTM)

Design and Performance of Additively Manufactured In-Circuit Board Planar Capacitors

This article covers 3D-printed planar capacitors with customizable capacitance, superior RF performance up to 20 GHz, high breakdown voltage, and minimal impedance changes, outperforming conventional SMD capacitors.

Sokol, D., et al. (2021) Design and Performance of Additively Manufactured In-Circuit Board Planar Capacitors, in: IEEE Transactions on Electron Devices ( Volume: 68, Issue: 11, November 2021)

3D-Printed Low-Profile Single-Substrate Multi-Metal Layer Antennas and Array With Bandwidth Enhancement

This paper presents multi-layer 3D-printed antennas using AME, achieving wide bandwidth and ultra-low profiles. By stacking metal layers, LP and CP patch antennas with improved bandwidth and integrated feed networks are demonstrated for sub-6GHz 5G mobile applications.

Li M., et al. (2020) 3D-Printed Low-Profile Single-Substrate Multi-Metal Layer Antennas and Array With Bandwidth Enhancement, in: IEEE Access ( Volume: 8)

A Fully Integrated Conductive and Dielectric Additive Manufacturing Technology for Microwave Circuits and Antennas

This work presents a fully-integrated 3D printing approach for microwave devices, enabling rapid prototyping of multilayer circuits and antennas with precise vias. The technology is validated through successful designs of transmission lines and microstrip antennas, showing accurate return loss and radiation patterns up to 40 GHz.

Li M., et al. (2021) A Fully Integrated Conductive and Dielectric Additive Manufacturing Technology for Microwave Circuits and Antennas, in: 2020 50th European Microwave Conference (EuMC)

Improved Bandwidth using a 3D Printed Quasi-Ideal Grounded Coplanar Waveguide Transmission Line

This paper presents a 3D-printed quasi-ideal grounded coplanar waveguide (QI-GCPW) that extends transmission line frequency range to over 65 GHz, compared to 12 GHz in traditional designs with spaced vias, offering improved performance for high-frequency applications.

Grady, M., et al. (2022) Improved Bandwidth using a 3D Printed Quasi-Ideal Grounded Coplanar Waveguide Transmission Line, in: 2022 IEEE 22nd Annual Wireless and Microwave Technology Conference (WAMICON)

3-D Printed RF Amplifier for Wireless Systems

This paper demonstrates a 3D-printed RF amplifier with multilayer circuits, achieving performance comparable to conventional methods up to 6 GHz, with less than 1.3 dB gain difference.

Paolella, A., et al. (2019) 3-D Printed RF Amplifier for Wireless Systems, in: 2019 IEEE Radio and Wireless Symposium (RWS)

Design and Fabrication of a Plastic-Free Antenna on a Sustainable Chitosan Substrate

This paper presents a 4.5 GHz fully biocompatible Planar Inverted-F Antenna (PIFA) on a chitosan substrate for sustainable 5G wearable devices. With a compact 14×23 mm² footprint and low SAR of 0.41 W/kg, it offers a promising eco-friendly alternative for the Internet of Healthcare Things (IoHT).

Marasco, I., et al. (2023) Design and Fabrication of a Plastic-Free Antenna on a Sustainable Chitosan Substrate, in: IEEE Electron Device Letters ( Volume: 44, Issue: 2, February 2023)

Conformable AlN Piezoelectric Sensors as a Non-invasive Approach for Swallowing Disorder Assessment

This study introduces ultrathin, flexible piezoelectric patches for non-invasive, real-time monitoring of dysphagia. These sensors convert laryngeal movement into precise electrical signals, offering reliable, smartphone-connected assessments, paving the way for automatic, unobtrusive evaluation of swallowing disorders.

Natta, L., et al. (2021) Conformable AlN Piezoelectric Sensors as a Non-invasive Approach for Swallowing Disorder Assessment, in: ACS Sens. 2021, 6, 5, 1761–1769, May 19, 2021

Compact and flexible meander antenna for Surface Acoustic Wave sensors

This paper presents a flexible, biocompatible 800 MHz UHF meander antenna using 3D printing and sputtering. It offers good impedance matching, wide bandwidth, and can integrate with Surface Acoustic Wave resonators for compact, wireless, battery-less sensing platforms.

Marasco, I., et al. (2020) Compact and flexible meander antenna for Surface Acoustic Wave sensors, in: Microelectronic Engineering Volume 227, 15 April 2020, 111322

A 3D-Printed Wideband Circularly Polarized Parallel-Plate Luneburg Lens Antenna

This paper introduces a 3D-printed wideband circularly polarized Luneburg Lens antenna with integrated linear-to-circular polarization. The design, using dielectric posts and parallel plates, covers a 43% bandwidth (21-32.5 GHz) with strong performance, verified through simulations and measurements.

Wang, I., et al. (2019) A 3D-Printed Wideband Circularly Polarized Parallel-Plate Luneburg Lens Antenna, in: IEEE Transactions on Antennas and Propagation PP(99):1-1

Disruptive Approach of Additive Manufactured Electronics (AME)

This presentation explores optimizing Additive Manufacturing Electronics (AME) by leveraging generative design, enhancing creepage distances, and integrating functions like EMC shielding. A plug-in sensor board for the SEMITRANS 10 MLI Power Stack illustrates these AME benefits, moving from rapid prototyping to direct manufacturing.

Schleicher, M., et al. (2021) Disruptive Approach of Additive Manufactured Electronics (AME), in: PCIM Europe digital days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management

A compact evolved antenna for 5G communications

This paper presents a flexible, miniaturized patch antenna with enhanced radiation using a Split Ring Resonator (SRR) on a biocompatible PEN substrate. Fabricated with 3D inkjet printing, the design shows improved performance for wearable systems, with results closely matching simulations and measurements.

Marasco, I., et al. (2022) A compact evolved antenna for 5G communications, in: Scientific Reports volume 12, Article number: 10327 (2022)

An efficient wideband cross-polarization converter manufactured by stacking metal/dielectric multilayers via 3D printing Editor’s Pick

This paper introduces a 3D-printed metasurface-based wideband polarization converter that efficiently rotates y-polarized waves into x-polarized waves across 9.8-18.9 GHz. The compact, multilayer design achieves high conversion efficiency using additive manufacturing for low-cost production, with results matching simulations and measurements.

Guangsheng, D., et al. (2020) An efficient wideband cross-polarization converter manufactured by stacking metal/dielectric multilayers via 3D printing Editor’s Pick, in: J. Appl. Phys. 127, 093103 (2020);Submitted: 07 November 2019 . Accepted: 19 February 2020 . Published Online: 02 March 2020

Additively Manufactured Polarization Insensitive Broadband

This paper proposes ultrathin broadband metasurfaces that enable polarization-insensitive wavefront shaping and conversion for any linearly polarized waves. Using 3D printing, the metasurfaces achieve efficient polarization conversion and wavefront control, producing vortex beams and anomalous refraction with high transmission efficiency.

Zhu, J., et al. (2022) Additively Manufactured Polarization Insensitive Broadband , in: AOM; Volume10, Issue21, November 4, 2022, 2200928

3D Printed Spin-Decoupled Transmissive Metasurfaces Based on Versatile Broadband Cross-Polarization Rotation Meta-Atom

This study demonstrates spin-decoupled broadband transmissive metasurfaces using 3D-printed nine-layer unit cells. The unique antenna-circuit-antenna design efficiently manipulates wavefronts for spin-decoupled beams, showcasing a novel approach for high-performance 3D metasurfaces.

Zhu, J., et al. (2023) 3D Printed Spin-Decoupled Transmissive Metasurfaces Based on Versatile Broadband Cross-Polarization Rotation Meta-Atom, in: AOM; Volume11, Issue4, February 17, 2023, 2370011

Single- and Multiple-Material Additively Manufactured Electronics: A Further Step From the Microwave-to-Terahertz Regimes

Additively Manufactured Electronics (AME) is revolutionizing microwave component design by enabling rapid prototyping of complex, high-performance devices. AME’s shift from single-material to multi-material fabrication allows for advanced designs across microwave to terahertz frequencies. This article reviews AME applications in transmission lines, lenses, filters, waveguides, and antennas.

Yang. Y. (2022) Single- and Multiple-Material Additively Manufactured Electronics: A Further Step From the Microwave-to-Terahertz Regimes, in: IEEE Microwave Magazine ( Volume: 24, Issue: 1, January 2023)

Single- and Multiple-Material Additively Manufactured Electronics: A Further Step From the Microwave-to-Terahertz Regimes

Additively Manufactured Electronics (AME) is revolutionizing microwave component design by enabling rapid prototyping of complex, high-performance devices. AME’s shift from single-material to multi-material fabrication allows for advanced designs across microwave to terahertz frequencies. This article reviews AME applications in transmission lines, lenses, filters, waveguides, and antennas.

Yang. Y. (2022) Single- and Multiple-Material Additively Manufactured Electronics: A Further Step From the Microwave-to-Terahertz Regimes, in: IEEE Microwave Magazine ( Volume: 24, Issue: 1, January 2023)

3D printing with wire embedding

This project explores affordable 3D printed electronics using consumer-grade printers. By embedding nichrome wire in conductive PLA, it enables direct joule heating, offering a low-cost alternative to expensive additive manufacturing technologies. Optimized parameters yield quality results, bringing embedded electronics closer to mainstream accessibility.

Zi Yun, L. (2023) 3D printing with wire embedding, in: Final Year Project (FYP), Nanyang Technological University, Singapore

Transactions on Additive Manufacturing Meets Medicine

This study introduces a 3D-printed sensor for measuring alternating magnetic fields in magnetic particle imaging (MPI). The sensor, fabricated using Nano Dimension’s Dragonfly IV, offers high precision, accuracy, and consistency in detecting high-frequency fields. It outperforms traditional hand-wound coils, paving the way for reliable, customizable sensors in preclinical imaging applications.

Stagge, P., Wattenberg, M., & Gräser, M. (2023) Transactions on Additive Manufacturing Meets Medicine, in: Transactions on Additive Manufacturing Meets Medicine Vol. 5 No. S1 (2023): Trans. AMMM Supplement

Design and Fabrication of a Minimally Invasive Dielectric Sensor for Biological Environments

A compact dielectric sensor on a Kapton substrate shows high sensitivity for water volume and temperature measurements, with impressive Q-factors and accuracy.

Marasco, I., et al. (2023) Design and Fabrication of a Minimally Invasive Dielectric Sensor for Biological Environments , in: IEEE Access 

A 3D-Printed Fourth-Order Stacked Filter for Integrated DC-DC Converters

A miniaturized DC-DC converter with embedded passive devices in a 3D-printed PCB achieves high power efficiency and low ripple with a compact, high-performance stacked LC filter.

Lee, J. et al. (2023) A 3D-Printed Fourth-Order Stacked Filter for Integrated DC-DC Converters, in: 2023 IEEE International Symposium on Circuits and Systems (ISCAS), Monterey, CA, USA, 2023, pp. 1-5

High-frequency Aluminum Nitride pMUT Probes Enclosed in a Miniaturized Architecture by Additive Manufacturing Technology, April 2023

Micromachined ultrasonic transducers (MUTs) offer compact, cost-effective, and high-performance alternatives to traditional piezo-ceramic devices for medical imaging. With advancements in piezoelectric thin films, pMUTs deliver enhanced sensitivity and faster response times. Additive Manufacturing Electronics (AME) facilitates the integration of pMUTs with standard electronics, allowing for rapid prototyping and advanced 3D circuit boards.

Mastronardia, V. M. et al. (2023) High-frequency Aluminum Nitride pMUT Probes Enclosed in a Miniaturized Architecture by Additive Manufacturing Technology, April 2023, in: IMAPS ITALY WORKSHOP Additive Manufacturing for Microelectronics

Current capabilities of prototyping technologies for multilayer printed circuit boards on a 3D printer

Explore advancements in 3D printing for PCB prototyping, evaluating single-sided, double-sided, and multilayer boards. Compare desktop vs. professional machines, including the DragonFly LDM 2020, and examine the additive manufacturing process, materials, and performance standards.

Vorunichev, D. S., Vorunicheva K. Y. (2021) Current capabilities of prototyping technologies for multilayer printed circuit boards on a 3D printer, in:

A Novel Approach to the Production of Printed Patch Antennas

Explore the use of lights-out digital additive manufacturing (LDM) for fabricating a patch antenna with conductive and dielectric inks. Compare its performance against traditional antennas on Arlon 25N and FR4 substrates.

Popela M., et al. (2024) A Novel Approach to the Production of Printed Patch Antennas, in: Appl. Sci. 2024, 14(4), 1556