Browsing by Author "Zandamela, Abel"
Now showing items 1-7 of 7
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3D Beam-Steering MIMO Antenna for On-Body IoT Applications
(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
(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
(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 Antenna for MUSIC-Based Angle of Arrival Estimation in Wrist-Worn Devices
(IEEE, 2022)In this work, we propose a compact Multiple-Input Multiple-Output (MIMO) antenna for wrist-worn devices. The design is capable of unidirectional beamsteering across the entire horizontal plane, a property that is exploited ... -
Feasibility Study of an Industrial Moisture Content Sensor Based on Wheeler Cap
(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
(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
(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 ...
