Novel Broadband Slot-Spiral Antenna for Terahertz Applications
Photonics, 2021 We report a novel broadband slot-spiral antenna that can be integrated with high-electron-mobility transistor (HEMT) terahertz (THz) detectors. The effect of various antenna parameters on the transmission efficiency of the slot-spiral structure at 150 ...
Zhen Huang +5 more
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Design of High-Sensitivity Flexible Low-Profile Spiral Antenna Sensor for GIS Built-in PD Detection [PDF]
Sensors, 2023 Spiral antenna sensors are commonly used in partial discharge (PD) ultra-high frequency (UHF) detection in gas-insulated switchgears (GISs). However, most of the existing UHF spiral antenna sensors are based on a rigid base and balun, such as FR-4.
Xukun Hu +4 more
doaj +3 more sources
A low-profile wideband compressed single-arm spiral antenna array for mid-band 5G beam steering applications [PDF]
Scientific Reports, 2022 A low profile wideband spiral antenna array is presented for global mid-band 5G beam steering applications. In the global rollout of mid-band 5G, different frequencies have been licensed within each region (e.g. 3.4–3.8 GHz in the EU and 3.7–5 GHz in the
Benjamin J. Falkner +8 more
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An Archimedean Spiral Antenna for Generation of Tunable Angular Momentum Wave
IEEE Access, 2021 In this paper, an Archimedean spiral antenna has been developed to flexibly radiate orbital angular momentum (OAM) wave with tunable modes. The operation mechanism for generation of the OAM wave is elaborated in terms of phases of the currents flowing on
Yan Shi, Quan Wei Wu, Jie Ming
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RF Energy Harvesting System Based on an Archimedean Spiral Antenna for Low-Power Sensor Applications. [PDF]
Sensors (Basel), 2019 This paper presents a radiofrequency (RF) energy harvesting system based on an ultrawideband Archimedean spiral antenna and a half-wave Cockcroft-Walton multiplier circuit.
Alex-Amor A +6 more
europepmc +2 more sources
Enhanced Broadband RF Differential Rectifier Integrated with Archimedean Spiral Antenna for Wireless Energy Harvesting Applications. [PDF]
Sensors (Basel), 2019 This work addresses the design and implementation of a broadband differential rectifier (DR) combined with an Archimedean spiral dipole antenna (ASDA) for wireless power harvesting at low incident power densities below 200 μW/cm2.
Mansour M, Le Polozec X, Kanaya H.
europepmc +2 more sources
IEEE Access, 2021 This paper presents a new design for a wideband circularly polarized (CP) spiral antenna array fed by a differential aperture coupling. The differential excitation is realized by two vias located at the lateral sides of a transverse slot etched on the ...
Elham Baghernia +2 more
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A Circularly Polarized Broadband Composite Spiral Antenna for Ground Penetrating Radar [PDF]
SensorsTo enhance the capability of a ground penetrating radar (GPR) in subsurface target identification and improve its polarization sensitivity in detecting underground linear objects, a circularly polarized broadband composite spiral antenna was designed ...
Hai Liu +5 more
doaj +2 more sources
3-D-Printed Spiral Leaky Wave Antenna With Circular Polarization
IEEE Open Journal of Antennas and Propagation, 2023 This article presents the design, manufacturing and measurement of a fully dielectric leaky wave antenna operating at 18 GHz. The antenna is composed of a grounded dielectric substrate with a top dielectric Archimedean spiral corrugation, which allows ...
Tomas Lira-Valdes +2 more
doaj +2 more sources
A Novel Four-Arm Planar Spiral Antenna for GNSS Application
IEEE Access, 2021 This letter introduces a novel four-arm planar spiral antenna which provides a perfect circular polarization radiation for Global Navigation Satellite System applications. The antenna mainly consists of four parts: an Archimedes spiral radiation area, an
Lili Guo +4 more
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