Browsing by Subject "MIMO Antennas"

Now showing items 1-10 of 10

    • 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 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 ...

    • 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 ...

    • Energy-Efficient Physical Layer Security for Wearable IoT Devices 

      Zandamela, Abel Abdul; Marchetti, Nicola (2023)
      This work proposes an energy-efficient Directional Modulation (DM) scheme for on-body Internet of Things (IoT) devices. DM performance is tested using a 5-port stacked-patch MIMO antenna under two scenarios: free space ...

    • Flexible Multimode-Based Beamforming MIMO Antenna 

      Zandamela, Abel Abdul; Marchetti, Nicola (2023)
      This work proposes compact, flexible Multiple Input Multiple Output (MIMO) antennas. The design principle is based on the excitation of different orthogonal radiating modes within the same antenna volume. Via phase ...

    • 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 ...

    • Stacked-Patch MIMO Antenna for Dual-Plane Beamsteering 

      Zandamela, Abel Abdul; Marchetti, Nicola (2022)
      This paper proposes a compact stacked-patch Multiple-Input Multiple-Output (MIMO) antenna with beamsteering in azimuth and elevation planes. The beamsteering is executed by controlling the phase shifts and amplitudes ...