Fixed-Frequency Beam-Steering Using Slotted Waveguide With Tunable Impedance Walls

Achieving high radiation efficiency and high gain at high frequencies is an important challenge in the design of electronically steerable leaky-wave antennas. The proposed leaky-wave antenna can achieve this thanks to the proposed phase-shifting mechanism of tunable metasurface impedance walls, placed at the two sides of a slotted rectangular waveguide.

Theoretical Analysis of Beam-Steerable, Broadside-Radiating Huygens Dipole Antenna Arrays and Experimental Verification of an Ultrathin Prototype for Wirelessly Powered IoT Application

The theoretical analysis and design simulations of beam-steerable, Huygens Dipole Antenna Arrays (HDAAs), along with measurements of an ultrathin realization are presented. The illustrated bushfire warning IoT system belongs to a set of emerging wireless applications, enabled by an HDAA transmitting broad coverage and radiating steerable beams that could wirelessly power sensor arrays spread over planar sectors at different elevations.

Seamless, ultra-thin MIMO antenna system for unmanned aerial vehicles

Unmanned Aerial Vehicles (UAV), also known as autonomous drones, are being utilized for a variety of applications such as disaster management, surveillance, and remote monitoring. The UAV’s market is expected to reach $47.76 billion by 2025. Antenna, being the most important part of that wireless link, must be designed such that it seamlessly integrates with the drone without affecting its flight. Further, to cater for high data rate applications, a large bandwidth is required. In this paper, a dual band design is presented that addresses all the key requirements for a drone antenna.

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