Monopole directional antenna bioinspired in elliptical leaf with golden ratio for WLAN and 4G applications [PDF]
Scientific Reports, 2022 In this work, it is proposed the development a new monopole directional antenna, bioinspired in elliptical leaf, with cut by golden ratio, for 4G band application, by the use of the technique of the cut of the radiating element for the increasing of the ...
Eduarda Froes +9 more
doaj +4 more sources
Design of mmWave Directional Antenna for Enhanced 5G Broadcasting Coverage [PDF]
Sensors, 2021 5G mmWave broadcasting is considered to be the main method of future broadcasting. However, the mmWave transmission has a large space loss, especially in tunnels.
Tao Hong +3 more
doaj +2 more sources
Compact Reconfigurable Antenna with an Omnidirectional Pattern and Four Directional Patterns for Wireless Sensor Systems [PDF]
Sensors, 2016 A compact reconfigurable antenna with an omnidirectional mode and four directional modes is proposed. The antenna has a main radiator and four parasitic elements printed on a dielectric substrate.
Ren Wang +3 more
doaj +2 more sources
A Pattern Reconfigurable Quasi-Yagi Antenna Array for 3-D Full-Space Coverage [PDF]
SensorsIn this paper, a pattern reconfigurable quasi-Yagi antenna and array for 3-D full-space coverage is proposed. The antenna element consists of hook-shaped radiating patches, parallel-coupled branches, a circular metal patch, and a windmill-shaped metal ...
Ziming Wei +5 more
doaj +2 more sources
Bi-Directional Fabry–Perot Cavity Antenna Based on Polarization-Dependent Transmit–Reflect Metasurface [PDF]
SensorsMetasurfaces (MSs) have been an effective method for the manipulation of electromagnetic (EM) radiation. However, this research mainly focused on controlling single-directional radiation. In this paper, a Fabry–Perot cavity (FPC) antenna based on the MSs
Yanfei Ren +7 more
doaj +2 more sources
Distributed Sensor Nodes Charged by Mobile Charger with Directional Antenna and by Energy Trading for Balancing [PDF]
Sensors, 2017 Provision of energy to wireless sensor networks is crucial for their sustainable operation. Sensor nodes are typically equipped with batteries as their operating energy sources.
Celso Moraes +3 more
doaj +2 more sources
Portable Wideband Directional Antenna Scheme with Semicircular Corrugated Reflector for Digital Television Reception. [PDF]
Sensors (Basel), 2022 Luadang B +6 more
europepmc +3 more sources
Sensing and Bio-Sensing Research, 2021 Monitoring system with Bluetooth low energy (BLE) beacons is promising for position identification of elderly wanderers. BLE beacons can be mounted in shoes for convenience, and a shoe-mounted directional antenna is expected to efficiently radiate the ...
Md Ismail Haque +4 more
doaj +1 more source
Sub-6 GHz Channel Modeling and Evaluation in Indoor Industrial Environments
IEEE Access, 2022 This paper presents sub-6 GHz channel measurements using a directional antenna at the transmitter and a directional or omnidirectional antenna at the receiver at 4.145 GHz in sparse and dense industrial environments for a line-of-sight scenario ...
Berna Bulut Cebecioglu +8 more
doaj +1 more source
Directional Pinching-Antenna Systems
We propose a directional pinching-antenna system (DiPASS), a comprehensive framework that transitions PASS modeling from idealized abstraction to physical consistency. DiPASS introduces the first channel model that accurately captures the directional, pencil-like radiation of pinching antennas, incorporates a practical waveguide attenuation of 1.3 dB/m,
Zhang, Runxin, Shao, Yulin, Liu, Yuanwei
openaire +3 more sources