Results 11 to 20 of about 13,252 (205)

A new impedance matching method for an ultra-wide band and dual circularly polarised feed [PDF]

open access: yes, 2016
In traditional antenna design, metal components are not placed in the central part of the antenna as they change the characteristics of near field radiation.
Chen, Zhi Jun   +6 more
core   +1 more source

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

The hybrid of floating stone column by numerical and physical evaluation [PDF]

open access: yes, 2018
Rapid population growth amplifying demand for accommodation and infrastructure has resulted in soft ground being increasingly used in construction. Problems related to soft ground can be remedied by adopting a ground improvement technique.
Meghzil, Sif Allah
core   +1 more source

Design of low VSWR axisymmetric subreflector

open access: yesElectronics Letters, 1993
The design of a low VSWR axisymmetric subreflector using the method of moments is described. To reduce the power reflected back into the waveguide horn the surface of the hyperbolic subreflector is deformed using raised-cosine functions. The method of moments technique is then validated by comparing experimental and theoretical results.
S.S. Chana, C.W. Turner
openaire   +1 more source

Desain dan Implementasi Antena Quadrifilar Helix untuk Komunikasi Antarpulau pada Pita UHF

open access: yesJurnal Rekayasa Elektrika, 2020
Riau Islands, which consists of thousands of islands and is located in the border area of Indonesia, has its own challenges. Based on this strategic geographical location, there are threats and opportunities to develop inter-island information systems ...
Heru Wijanarko   +3 more
doaj   +1 more source

Design Build a 4x4 Mimo Microstrip Antenna with Artificial Dielectric Muse Array Technique to increase Antenna Gain pexisting Application 5G

open access: yesProtek: Jurnal Ilmiah Teknik Elektro, 2023
The development of fifth-generation cellular technology, commonly referred to as "5G" networks, is believed to be able to maximize data speed access needs.
Ade Silvia Handayani   +3 more
doaj   +1 more source

Perancangan Antena Yagi Gain Tinggi Pada Ground Control Station Wahana Udara Nirawak

open access: yesJurnal Rekayasa Elektrika, 2020
The uncrewed Aerial Vehicle (UAV) operation is currently dominated by autonomous technology (autopilot) rather than manual control via remote control. During flying the mission autonomously, communication between the UAV and the Ground Control Station ...
Melvi Melvi   +6 more
doaj   +1 more source

Quad-band internal mobile phone antenna [PDF]

open access: yes, 2007
A novel internal, quad-band antenna placed inside a ‘foldable’ type of Mobile Phone is presented. Its structure consists of a helical and a monopole element exciting two broad frequency bands.
Langley, R.J., Tzortzakakis, M.
core   +1 more source

2×1 Truncated Corner Microstrip Array Antenna to Increase Gain and Bandwidth for LTE Applications at 2.3 GHz Frequency

open access: yesJurnal Elektronika dan Telekomunikasi, 2022
In the development of telecommunications in Indonesia, cellular networks, especially 4G, have grown rapidly since the launch of 4G LTE services. In the implementation of LTE, an antenna that has performance values of bandwidth, working frequency, VSWR ...
Ahmad Heri Ilyasah   +2 more
doaj   +1 more source

Study and Design of a Diferentially Fed Tapered Slot Antenna Array [PDF]

open access: yes, 2010
The results of a parametric study and design of an ultrawideband dual-polarized array of differentially-fed tapered slot antenna elements are presented. We examine arrays of bunny-ear antennas and discuss the capabilities and limitations of differential ...
García, Enrique   +5 more
core   +2 more sources

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