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Innovative Seatbelt-Integrated Metasurface Radar for Enhanced In-Car Healthcare Monitoring (2024)
Journal Article
Asyari, R. A. I., Simorangkir, R. B. V. B., & Teichmann, D. (2024). Innovative Seatbelt-Integrated Metasurface Radar for Enhanced In-Car Healthcare Monitoring. Sensors, 24(23), Article 7494. https://doi.org/10.3390/s24237494

This study introduces a novel seatbelt-integrated, non-invasive, beam-focusing metamaterial sensing system characterized by its thinness and flexibility. The system comprises a flexible transmitarray lens and an FMCW radar sensor, enabling the accura... Read More about Innovative Seatbelt-Integrated Metasurface Radar for Enhanced In-Car Healthcare Monitoring.

300 GHz Stacked AFSIW LTCC Horn Array Antenna with Integrated Lenses for V2V (2024)
Presentation / Conference Contribution
Skalinski, E. S., Simorangkir, R. B. V. B., & Mabrouk, I. B. (2024, July). 300 GHz Stacked AFSIW LTCC Horn Array Antenna with Integrated Lenses for V2V. Presented at 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI), Firenze, Italy

Compact Implantable Antenna with Ultra-Wide bandwidth for Leadless Pacemaker (2024)
Presentation / Conference Contribution
Alghamdi, A., Basir, A., Iqbal, A., Simorangkir, R. B. V. B., & Mabrouk, I. B. (2024, July). Compact Implantable Antenna with Ultra-Wide bandwidth for Leadless Pacemaker. Presented at 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI), Firenze, Italy

This article introduces a compact antenna designed for leadless pacemakers (LPs), featuring a small size of 8.83 mm 3 , and a bandwidth of 4330 MHz, addressing detuning issues. Covering frequencies from 0.67 GHz to 5 GHz, the antenna ensures optimal... Read More about Compact Implantable Antenna with Ultra-Wide bandwidth for Leadless Pacemaker.

Ultra-Miniaturized In-Band Full-Duplex Implantable Antenna for Wireless Capsule Endoscopy (2024)
Presentation / Conference Contribution
Alshammari, A., Iqbal, A., Simorangkir, R. B., Hongjian, S., & Mabrouk., I. B. (2024, July). Ultra-Miniaturized In-Band Full-Duplex Implantable Antenna for Wireless Capsule Endoscopy. Presented at 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI), Firenze, Italy

Optimising Optical Transparency and RF Performance in Meshed 5G Vehicular Antennas (2024)
Presentation / Conference Contribution
Bourne, W. J., Simorangkir, R. B. V. B., & Mabrouk, I. B. (2024, July). Optimising Optical Transparency and RF Performance in Meshed 5G Vehicular Antennas. Presented at 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI), Firenze, Italy

With 5G networks enabling new vehicular connec-tivity services, there is a need for effective antennas to be integrated into automotive glass. As a result, better optically transparent (OT) conductive films are required. This paper analyses micro-sca... Read More about Optimising Optical Transparency and RF Performance in Meshed 5G Vehicular Antennas.

A Battery-less Contact Lens Sensor Prototype with Enhanced Performance for Cattle Health Monitoring (2024)
Presentation / Conference Contribution
Kumar, S., Gawade, D. R., Simorangkir, R. B. V. B., Moloudian, G., Belcastro, M., Torchia, P., Federico, A., Buckley, J. L., & O'Flynn, B. (2024, July). A Battery-less Contact Lens Sensor Prototype with Enhanced Performance for Cattle Health Monitoring. Presented at 2024 IEEE Sensors Applications Symposium (SAS), Naples, Italy

This paper presents a low-cost, non-invasive, and fully integrated smart NFC sensor tag for cattle health monitoring. The proposed sensor solution operates without a battery and has the potential to measure the body temperature and health status of c... Read More about A Battery-less Contact Lens Sensor Prototype with Enhanced Performance for Cattle Health Monitoring.

Conformal MIMO Ultra-Wideband Antenna Design for High-Speed Wireless Telemetry in Capsule Endoscopy Systems (2024)
Journal Article
Chang, L., Iqbal, A., Basir, A., Simorangkir, R. B. V. B., & Mabrouk, I. B. (2024). Conformal MIMO Ultra-Wideband Antenna Design for High-Speed Wireless Telemetry in Capsule Endoscopy Systems. IEEE Transactions on Antennas and Propagation, 72(7), 5724-5732. https://doi.org/10.1109/tap.2024.3411703

This article presents a novel ultra-wideband (UWB) antenna for multiple-input-multiple-output (MIMO) operations in wireless capsule endoscopy (WCE) applications. The design is capable of supporting high channel capacity for real-time transmission and... Read More about Conformal MIMO Ultra-Wideband Antenna Design for High-Speed Wireless Telemetry in Capsule Endoscopy Systems.

Sub-GHz Wrist-Worn Antennas for Wireless Sensing Applications: A Review (2024)
Journal Article
Kumar, S., Moloudian, G., Simorangkir, R. B. V. B., Gawade, D. R., O’Flynn, B., & Buckley, J. L. (online). Sub-GHz Wrist-Worn Antennas for Wireless Sensing Applications: A Review. IEEE Open Journal of Antennas and Propagation, 1-1. https://doi.org/10.1109/ojap.2024.3397193

With recent advances in wearable wrist-worn wireless sensing applications, the demand for smartwatches and wristbands is rapidly increasing due to their widespread adoption in applications such as smart health monitoring, security, and fitness tracki... Read More about Sub-GHz Wrist-Worn Antennas for Wireless Sensing Applications: A Review.

Machine Learning Approaches for EM Signature Analysis in Chipless RFID Technology (2024)
Presentation / Conference Contribution
Rather, N., Simorangkir, R. B. B., Buckley, J. L., O'Flynn, B., & Tedesco, S. (2024, March). Machine Learning Approaches for EM Signature Analysis in Chipless RFID Technology. Presented at 2024 18th European Conference on Antennas and Propagation (EuCAP), Glasgow, United Kingdom

In this paper, for the first time, we provide a comprehensive review of Machine Learning (ML) approaches in Chipless Radio Frequency Identification (CRFID) technology, which is a fast-developing sector with applications in inventory management, anti-... Read More about Machine Learning Approaches for EM Signature Analysis in Chipless RFID Technology.

Ultra-Miniaturized Dual-Band Implantable Antenna for Wireless Capsule Endoscopy (2024)
Journal Article
Alshammari, A., Iqbal, A., Basir, A., Simorangkir, R. B. V. B., & Mabrouk, I. B. (2024). Ultra-Miniaturized Dual-Band Implantable Antenna for Wireless Capsule Endoscopy. IEEE Sensors Journal, 24(9), 15210-15218. https://doi.org/10.1109/jsen.2024.3374817

This study introduces a small dual-band implantable antenna designed for Wireless Capsule Endoscopy (WCE). This antenna operates in the Wireless Medical Telemetry Service (WMTS) 1.4 GHz as well as the Industrial, Scientific, and Medical (ISM) 2.45 GH... Read More about Ultra-Miniaturized Dual-Band Implantable Antenna for Wireless Capsule Endoscopy.

60 GHz FMCW Millimeter Wave Radar Assisted With Dual-Layer Wideband Flexible Metasurface for Accurate Wrist Pulse Monitoring (2024)
Journal Article
Asyari, R. A. I., Wiranata, M. Z., Li, C., Simorangkir, R. B. V. B., & Teichmann, D. (2024). 60 GHz FMCW Millimeter Wave Radar Assisted With Dual-Layer Wideband Flexible Metasurface for Accurate Wrist Pulse Monitoring. IEEE Sensors Letters, 8(3), 1-4. https://doi.org/10.1109/lsens.2024.3365851

This letter presents a novel passive focusing metasurface designed for wrist pulse detection within the 60 GHz millimeter wave frequency range, incorporating a dual-layer transmitarray antenna. The proposed metasurface demonstrates exceptional polari... Read More about 60 GHz FMCW Millimeter Wave Radar Assisted With Dual-Layer Wideband Flexible Metasurface for Accurate Wrist Pulse Monitoring.

The Potential of Electrospinning to Enable the Realization of Energy-Autonomous Wearable Sensing Systems (2024)
Journal Article
Dinuwan Gunawardhana, K. R. S., Simorangkir, R. B. V. B., McGuinness, G. B., Rasel, M. S., Magre Colorado, L. A., Baberwal, S. S., …Coyle, S. M. (2024). The Potential of Electrospinning to Enable the Realization of Energy-Autonomous Wearable Sensing Systems. ACS Nano, 18(4), 2649-2684. https://doi.org/10.1021/acsnano.3c09077

The market for wearable electronic devices is experiencing significant growth and increasing potential for the future. Researchers worldwide are actively working to improve these devices, particularly in developing wearable electronics with balanced... Read More about The Potential of Electrospinning to Enable the Realization of Energy-Autonomous Wearable Sensing Systems.

RF Energy Harvesting Techniques for Battery-less Wireless Sensing, Industry 4.0 and Internet of Things: A Review (2024)
Journal Article
Moloudian, G., Hosseinifard, M., Kumar, S., Simorangkir, R. B. V. B., Buckley, J. L., Song, C., Fantoni, G., & O’Flynn, B. (2024). RF Energy Harvesting Techniques for Battery-less Wireless Sensing, Industry 4.0 and Internet of Things: A Review. IEEE Sensors Journal, 24(5), 5732-5745. https://doi.org/10.1109/jsen.2024.3352402

As the Internet of Things (IoT) continues to expand, the demand for the use of energy-efficient circuits and battery-less devices has grown rapidly. Battery-less operation, zero maintenance and sustainability are the desired features of IoT devices i... Read More about RF Energy Harvesting Techniques for Battery-less Wireless Sensing, Industry 4.0 and Internet of Things: A Review.

A Design Methodology for Sensing-Ready Concentric Rings-Based Chipless RFID Tags With Effective Spectrum Use and High Coding Capacity (2024)
Journal Article
Rather, N., Buckley, J. L., O’Flynn, B., Pigeon, M., & Simorangkir, R. B. V. B. (2024). A Design Methodology for Sensing-Ready Concentric Rings-Based Chipless RFID Tags With Effective Spectrum Use and High Coding Capacity. IEEE Journal of Radio Frequency Identification, 8, 1-9. https://doi.org/10.1109/jrfid.2024.3351678

This paper introduces an innovative strategy for the development of sensing-ready concentric rings-based chipless radio frequency identification (CRFID) tags. Our approach is marked by the novel use of exponentially increasing spacing, a significant... Read More about A Design Methodology for Sensing-Ready Concentric Rings-Based Chipless RFID Tags With Effective Spectrum Use and High Coding Capacity.

Deep Learning Assisted Robust Detection Techniques for a Chipless RFID Sensor Tag (2023)
Journal Article
Rather, N., Simorangkir, R. B. V. B., Buckley, J. L., O’Flynn, B., & Tedesco, S. (2023). Deep Learning Assisted Robust Detection Techniques for a Chipless RFID Sensor Tag. IEEE Transactions on Instrumentation and Measurement, 73, Article 2502710. https://doi.org/10.1109/tim.2023.3334378

In this paper, we present a new approach for robust reading of identification and sensor data from chipless RFID sensor tags. For the first time, Machine Learning (ML) and Deep Learning (DL) regression modelling techniques are applied to a dataset of... Read More about Deep Learning Assisted Robust Detection Techniques for a Chipless RFID Sensor Tag.

A Novel Robot Based Data Acquisition Methodology for Chipless RFID Systems (2023)
Presentation / Conference Contribution
Rather, N., Simorangkir, R. B. V. B., O’Donnell, C., Gawade, D. R., Buckley, J. L., O’Flynn, B., & Tedesco, S. (2023, September). A Novel Robot Based Data Acquisition Methodology for Chipless RFID Systems. Presented at 2023 IEEE International Conference on RFID Technology and Applications (RFID-TA), Aveiro, Portugal

In this paper, a novel automated data acquisition methodology is presented for chipless RFID systems. The proposed method utilises a Raspberry Pi to act as an interface between a vector network analyser and a universal arm robot to perform automated... Read More about A Novel Robot Based Data Acquisition Methodology for Chipless RFID Systems.

Evaluation of a U-Shaped Convolutional Neural Network for RCS based Chipless RFID Systems (2023)
Presentation / Conference Contribution
Rather, N., Simorangkir, R. B. V. B., Buckley, J. L., O’Flynn, B., & Tedesco, S. (2023, September). Evaluation of a U-Shaped Convolutional Neural Network for RCS based Chipless RFID Systems. Presented at 2023 IEEE International Conference on RFID Technology and Applications (RFID-TA), Aveiro, Portugal

In this paper, for the first time, a one-dimensional convolutional neural network using a U-shaped architecture is evaluated in the context of radar cross section (RCS) based chipless RFID (CRFID) systems. A 3-bit CRFID tag is utilised to create eigh... Read More about Evaluation of a U-Shaped Convolutional Neural Network for RCS based Chipless RFID Systems.