Now showing items 1-8 of 8

    • 3D Beam-Steering MIMO Antenna for On-Body IoT Applications 

      Zandamela, Abel; Marchetti, Nicola; Ammann, Max J.; Narbudowicz, Adam (IEEE, 2023)
      In this article, a compact 3D beam-steering MIMO antenna operating at 5.75 GHz is proposed for on-body Internet of Things (IoT) applications. The planar antenna comprises a central patch and two concentric annular rings. ...
    • Angle of Arrival Estimation Via Small IoT Devices: Miniaturized Arrays vs MIMO Antennas 

      Zandamela, Abel; Chiumento, Alessandro; Marchetti, Nicola; Narbudowicz, Adam (2022)
      This tutorial discusses the problem of Angle-of-Arrival (AoA) estimation from small Internet of Things (IoT) devices. It reviews the limitations and challenges of existing miniaturization strategies, which involve classical ...
    • Compact Beamforming Antennas for Directional Modulation in IoT 

      Narbudowicz, Adam; Zandamela, Abel (2023)
      The paper discuss a PHY-layer security technique known as Directional Modulation (DM) and its implementations with compact beamforming antennas. The motivation is to allow DM to operate from small and low-complexity IoT ...
    • Compact MIMO Antennas for Localization and PHY layer Security in Wrist Worn IoT Devices 

      Zandamela, Abel Abdul; Marchetti, Nicola; Ammann, Max J.; Narbudowicz, Adam (SFI, 2022)
      On-body IoT technologies, like wrist-worn devices, are becoming a key enabler of many cutting-edge applications such as connected healthcare systems (e.g, patient monitoring, in-hospital localization, sports fitness, and ...
    • Directional Modulation for Enhanced Privacy in Smart Watch Devices 

      Zandamela, Abel Abdul; Marchetti, Nicola; Narbudowicz, Adam (2023)
      This article studies security aspects of data transmission in on-body Internet of Things (IoT) devices through the use of Directional Modulation (DM) from a smart watch integrated antenna. DM is a beamsteering-based Physical ...
    • Feasibility Study of an Industrial Moisture Content Sensor Based on Wheeler Cap 

      Pratoomma, Prakorn; Zandamela, Abel; Chalermwisutkul, Suramate; Narbudowicz, Adam (IEEE, 2021)
      The paper proposes a technique for sensing of moisture content of a waste paper block based on Wheeler Cap measurement method. The technique allows sufficient penetration into the sample due to relatively low frequencies ...
    • Small Dual-Band 3D Beamforming MIMO Antenna 

      Zandamela, Abel Abdul; Marchetti, Nicola; Narbudowicz, Adam (IEEE, 2023)
      This work proposes a small dual-band (2.4 GHz and 4.89 GHz bands) 3D beamforming Multiple-Input Multiple-Output (MIMO) antenna for emerging size-constrained Internet of Things (IoT) applications. The performance is realized ...
    • Spherical Modes Driven Directional Modulation with a Compact MIMO Antenna 

      Zandamela, Abel Abdul; Marchetti, Nicola (2023)
      In this letter, a compact beamsteering MIMO antenna is proposed for Directional Modulation (DM) applications. A generalization of the beamsteering principle is presented and by exploiting the antenna’s unidirectional ...