Results 31 to 40 of about 30,504 (243)
Rancang Bangun Antena Horn Planar Frekuensi 1 – 3 GHz untuk Ground Penetrating Radar
Jurnal ElkomikaABSTRAK Antena horn planar merupakan antena yang menggunakan salah satu sisi antena horn berbentuk piramida dan beroperasi pada frekuensi diatas 1000 MHz.
LUCIA JAMBOLA +2 more
doaj +1 more source
Microstrip antenna design for use in 4G communication network systems
Teknika4G service coverage only reaches 52.90% of the total area in Indonesia, with an average internet speed of 11.12 Mbps which is one of the lowest internet speeds in Southeast Asia.
M. Reza Ramadhon +2 more
doaj +1 more source
Gain improvement of the Yagi-Uda Antenna Using Genetic Algorithm for Application in DVB-T2 Television Signal Reception in Tanzania [PDF]
Journal of Interdisciplinary Sciences, 2017 Region 2 UHF Frequency band is the frequency range which is used for transmitting Television signals in East Africa. Yagi-uda antenna is an array Antenna designed for various applications, in this paper a 5-element yagi-uda antenna is designed and ...
Twahir Kazema, Kisangiri Michael
doaj
Energies, 2017 In order to improve the fault monitoring performance of grounding electrode lines in ultra-high voltage DC (UHVDC) transmission systems, a novel fault monitoring approach based on the high-frequency voltage standing-wave ratio (VSWR) is proposed in this ...
Yufei Teng +6 more
doaj +1 more source
PENGARUH BAHAN DIELEKTRIK DALAM UNJUK KERJA WAVEGUIDE
JIF (Jurnal Ilmu Fisika), 2012 Makalah ini menyajikan hasil studi pengukuran nilai Voltage Standing Wave Ratio (VSWR) dan power reflection factor (PRF) untuk berbagai jenis bahan dielektrik yang akan disisipkan pada saluran transmisi yang beroperasi di frekuensi 9 GH dan dibandingkan ...
Lince Markis
doaj +1 more source
A telemetry antenna system for unmanned air vehicles [PDF]
, 2010 This paper presents a low VSWR high gain telemetry antenna system manufactured for UAVs that provides 360± coverage in the roll plane of the UAV. Proposed telemetry antenna system includes four telemetry antennas, one power divider that has one input and
Dogan, Mustafa +3 more
core
Advanced Science, EarlyView.We present a textile‐compatible, self‐healing liquid metal ink and a dual‐mask printing technique for high‐resolution patterning. Using this approach, we demonstrate high‐performance millimeter‐wave (mmWave) electronic textiles that exhibit exceptional insensitivity to deformation.
Lu Ju +11 more
wiley +1 more source
Bandwidth Enhancement of Balanced Folded Loop Antenna Design for Mobile Handsets Using Genetic Algorithms [PDF]
, 2008 YesIn this paper, a simple folded loop antenna (FLA) for handsets with relatively wide- band impedance, designed and optimized using genetic algorithms (GA).
Abd-Alhameed, Raed A. +2 more
core
The rigorous analysis of strongly coupled step discontinuities in microstrip [PDF]
, 1987 A rigorous analysis of boxed microstrip single-step discontinuities and cascades of strongly coupled discontinuities is presented. Use is made of a variational formulation involving the expansion of the transverse E field at the step in terms of suitable
Railton, CJ, Rozzi, T
core +4 more sources
Wideband and Frequency‐Reconfigurable Loop Antenna for Sub‐6 GHz Applications
IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.This work tackles the longstanding bandwidth limitation of loop antennas by introducing a compact, symmetrical design that integrates a microstrip balun and periodic varactor loading. Unlike existing methods that often compromise symmetry or beam control, the proposed structure achieves both wide impedance bandwidth and frequency reconfigurability ...
Amir Jafargholi, Romain Fleury
wiley +1 more source