Browsing by Subject "Electrically Small Antennas"

Now showing items 1-5 of 5

    • 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 ...

    • Electrically Small Multimodal 3D Beamforming MIMO Antenna for PHY-Layer Security 

      Zandamela, Abel Abdul; Marchetti, Nicola
      This work proposes an electrically small 3D beam- forming antenna for PHYsical Layer (PHY-layer) security. The antenna comprises two layers of stacked patch structures, and is a five-mode five-port MIMO system operating ...

    • 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 ...

    • Non-Contact Radio Frequency Level Sensor Based on Wheeler Cap 

      Pratoomma, Prakorn; Zandamela, Abel; Narbudowicz, Adam; Chalermwisutkul, Suramate (2023)
      In this paper, we propose a novel non-contact liquid level sensor based on the Wheeler cap. The sensor utilizes an electrically small antenna operating at 276 MHz enclosed within a metal cap, in conjunction with the liquid ...

    • Pattern and Polarization Diversity Multi-Sector Annular Antenna for IoT Applications 

      Zandamela, Abel; Marchetti, Nicola; Ammann, Max J.; Narbudowicz, Adam (IEEE, 2023)
      This work proposes a small pattern and polarization diversity multi-sector annular antenna with electrical size and profile of ka = 1.2lambda and 0.018lambda, respectively. The antenna is planar and comprises annular sectors ...