Results 1 to 10 of about 179 (156)

An Ultra-Wideband Ridged Biconical Multibeam Antenna

open access: yesIEEE Access, 2023
This paper presents an ultra-wideband multibeam antenna with eight radiating elements that are connected to the central cylindrical part. Each radiating element consists of a TEM horn fed by a coaxial to ridged planar waveguide transition. The connection
Mahdi Zoghi   +2 more
doaj   +2 more sources

Investigation of Broadband Printed Biconical Antenna with Tapered Balun for EMC Measurements

open access: yesEnergies, 2021
This article investigates the design, modeling, and fabrication of small-size (150 × 90 × 1.6 mm) broadband printed biconical antenna. The proposed antenna is intended for use a reference antenna for electromagnetic interference measurement inside the ...
Abdulghafor A. Abdulhameed   +1 more
doaj   +3 more sources

Design and Experimental Validation of a 12 GHz High-Gain 4 × 4 Patch Antenna Array for S21 Phase-Based Vital Signs Monitoring [PDF]

open access: yesSensors
Non-contact monitoring of human vital signs using microwave radar has attracted increasing attention due to its capability to operate unobtrusively and through clothing or light obstacles. In vector network analyzer (VNA)-based radar systems, vital signs
David Vatamanu   +2 more
doaj   +2 more sources

FEATURES OF BICONICAL ANTENNA PULSE RADIATION

open access: yesRadio Physics and Radio Astronomy, 2015
Fields in bicone line and in free space are presented in the form of expansion over frequency-independent modes. Each mode possesses the dispersion depending on radius. With the mode matching method, the bicone antenna pulse radiation is calculated.
M. M. Legenkiy
doaj   +3 more sources

Dual-Band Circularly Polarized Omni-Directional Biconical Antenna With Double-Circular Parallelepiped Elements for WLAN Applications

open access: yesIEEE Access, 2022
This research proposes a novel dual-band (2.45/5.80 GHz) omnidirectional circularly polarized (CP) biconical antenna with double-circular parasitic parallelepiped elements for wireless local area network (WLAN) applications.
Pisit Janpangngern   +3 more
doaj   +1 more source

Distribution Characteristics of Partial Discharge Radio Frequency Signal in Transformer Tank and Bushing

open access: yesZhongguo dianli, 2023
The external partial discharge (PD) radio frequency (RF) detection method is suitable for equipment in operation, and has become one of the important means to perceive the insulation defects of transformer and bushing.
Hui HUANG   +4 more
doaj   +1 more source

Characteristics of the Sleeve Dipole Antenna Used for EMC Applications

open access: yesIEEE Access, 2020
This paper presents the antenna factor (AF) of sleeve dipole antennas (SDA) with coaxial-cable balun for electromagnetic compatibility (EMC) applications.
Ki-Chai Kim   +2 more
doaj   +1 more source

An Optimization Design of Bi-log Hybrid Antenna with Taguchi’s Method for EMI Measurements

open access: yesApplied Sciences, 2023
This paper presents a comprehensive design approach for a biconical log-periodic dipole array (Bi-log) hybrid antenna optimized specifically for electromagnetic interference (EMI) measurements.
Chih-Hung Lee, Ding-Bing Lin
doaj   +1 more source

On Modeling Antennas Using MoM-Based Algorithms: Wire-Grid versus Surface Triangulation

open access: yesAlgorithms, 2023
This paper focuses on antenna modeling using wire-grid and surface triangulation as two of the most commonly used MoM-based approaches in this field.
Adnan Alhaj Hasan   +6 more
doaj   +1 more source

Millimeter-Wave Propagation Measurement and Modeling in Indoor Corridor and Stairwell at 26 and 38 GHz

open access: yesIEEE Access, 2021
Accurate propagation characteristics are essential for future indoor millimeter-wave (mmWave) small cell network planning. This paper presents propagation measurements at 26 GHz and 38 GHz which are important candidate bands for fifth generation mmWave ...
Yuyan Shen   +4 more
doaj   +1 more source

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