Results 1 to 10 of about 27,684 (298)

Design of High-Sensitivity Flexible Low-Profile Spiral Antenna Sensor for GIS Built-in PD Detection [PDF]

open access: yesSensors, 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   +2 more sources

A low-profile wideband compressed single-arm spiral antenna array for mid-band 5G beam steering applications [PDF]

open access: yesScientific 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
doaj   +2 more sources

A Twin Spiral Planar Antenna for UWB Medical Radars [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2013
A planar-spiral antenna to be used in an ultrawideband (UWB) radar system for heart activity monitoring is presented. The antenna, named “twin,” is constituted by two spiral dipoles in a compact structure.
Giuseppe A. Zito   +2 more
doaj   +2 more sources

A Circularly Polarized Broadband Composite Spiral Antenna for Ground Penetrating Radar [PDF]

open access: yesSensors
To 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

EBG-backed ultrawideband circularly polarized Archimedean spiral antenna scheme for IoT applications [PDF]

open access: yesScientific Reports
This research proposes a low-profile ultrawideband circularly polarized Archimedean spiral antenna with an electromagnetic band gap (EBG)-backed structure. The proposed antenna scheme consists of an upper-layer spiral radiator, a microstrip tapered balun,
Bancha Luadang   +6 more
doaj   +2 more sources

Design and Study of a Circular Polarised Conical-Disc-Backed Spiral Antenna for X-Band Applications [PDF]

open access: yesIEEE Access, 2017
Design of a conical-disc-backed circular-polarized Archimedean single-arm spiral antenna is presented in this paper. The antenna operation covers the X-band frequencies ranging from 8 to 12 GHz. The antenna makes use of a very simple structure having the
Masood Ur-Rehman   +3 more
doaj   +6 more sources

Design of Small-Sized Spiral Slot PIFA Antenna Used Conformally in Laminated Body Tissues [PDF]

open access: yesSensors
This paper presents a novel Spiral Slot Planar Inverted-F Antenna (SSPIFA) specifically designed for telemedicine and healthcare applications, featuring compact size, biocompatible safety, and high integration suitability.
Rong Li   +5 more
doaj   +2 more sources

Spiral Antenna Design and Analysis As a Tool to Measure Partial Discharge in High Voltage Equipment [PDF]

open access: yesE3S Web of Conferences, 2021
The high-voltage equipment often experiences disturbances caused by the age of the equipment, installation errors, partial discharge disturbances. Of these kinds of disturbances, partial discharge is one of the most common disturbances in high-voltage ...
Laksono Deni Tri   +2 more
doaj   +1 more source

Novel Broadband Slot-Spiral Antenna for Terahertz Applications

open access: yesPhotonics, 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
doaj   +1 more source

The design and manufacture of a conformal conical spiral antenna with four-arm for position measurement

open access: yesXi'an Gongcheng Daxue xuebao, 2021
In order to solve the problem of insufficient carrier space caused by the antenna loaded inside the conical seeker, the conformal four arm conical spiral antenna which applied to the main frequency of 1.575 GHz satellite positioning communication system ...
Wei SHEN   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy