Results 21 to 30 of about 26,548 (279)

A Modified SWB Hexagonal Fractal Spatial Diversity Antenna With High Isolation Using Meander Line Approach

open access: yesIEEE Access, 2022
This manuscript introduces a novel miniaturized super wideband (SWB) hexagonal fractal spatial diversity 2-element multiple-input-multiple-output (MIMO) antenna for broadband applications, as a compact wideband antenna is required for military radio and ...
Abhishek Kumar Chaudhary, Murli Manohar
doaj   +1 more source

Influence of the line characterization on the transient analysis of nonlinearly loaded lossy transmission lines [PDF]

open access: yes, 1994
The analysis of nonlinearly terminated lossy transmission lines is addressed in this paper with a modified version of a method belonging to the class of mixed techniques, which characterize the line in the frequency domain and solve the nonlinear problem
PIGNARI, SERGIO AMEDEO   +6 more
core   +1 more source

A Small Design of Ultra-Wideband Printed Antenna with Notched and Raked Planar Patch [PDF]

open access: yesEngineering and Technology Journal, 2017
In this research, patch was printed on a rectangular radiating substrate Taconic material. The Taconic material used is TLY-5 of 30 x 30 mm2 dimensions and 1.575 mm thickness. Its Relative dielectric constant (εr) of 2.2 was taken in this research.
R.A. Fayadh
doaj   +1 more source

On the Characteristics of EMTR as a Correlation-Estimator-Based Fault Location Method in Transmission Lines

open access: yesApplied Sciences, 2022
Methods based on electromagnetic time reversal (EMTR) have recently demonstrated promising results. In particular, EMTR, as a correlation estimator metric, has offered a quantitative definition for fault location candidates.
Akif Nadeem   +5 more
doaj   +1 more source

Miniature Microwave Notch Filters and Comparators Based on Transmission Lines Loaded with Stepped Impedance Resonators (SIRs) [PDF]

open access: yesMicromachines, 2015
In this paper, different configurations of transmission lines loaded with stepped impedance resonators (SIRs) are reviewed. This includes microstrip lines loaded with pairs of SIRs, and coplanar waveguides (CPW) loaded with multi-section SIRs. Due to the high electric coupling between the line and the resonant elements, the structures are electrically ...
Lijuan Su   +3 more
openaire   +6 more sources

Recent Results From the EU POF-PLUS Project: Multi-Gigabit Transmission Over 1 mm Core Diameter Plastic Optical Fibers [PDF]

open access: yes, 2011
Recent activity to achieve multi-gigabit transmission over 1 mm core diameter graded-index and step-index plastic optical fibers for distances up to 50 meters is reported in this paper.
Gaudino, R.   +41 more
core   +1 more source

Kalman Filter Estimation of Impedance Parameters for Medium Transmission Line

open access: yes, 2022
Accurate knowledge of impedance parameters in transmission line helps to improve the systemefficiency and performance. Nowadays, the estimation of impedance parameters in transmission line hasbecome possible with the availability of computational method.

core   +1 more source

Highly Sensitive Reflective-Mode Defect Detectors and Dielectric Constant Sensors Based on Open-Ended Stepped-Impedance Transmission Lines [PDF]

open access: yesSensors, 2020
In this paper, reflective-mode phase-variation sensors based on open-ended stepped-impedance transmission lines with optimized sensitivity for their use as defect detectors and dielectric constant sensors are reported. The sensitive part of the sensors consists of either a 90° high-impedance or a 180° low-impedance open-ended sensing line.
Pau Casacuberta   +5 more
openaire   +6 more sources

Discrete Multitone Modulation for Maximizing Transmission Rate in Step-Index Plastic Optical Fibres [PDF]

open access: yes, 2009
The use of standard 1-mm core-diameter step-index plastic optical fiber (SI-POF) has so far been mainly limited to distances of up to 100 m and bit-rates in the order of 100 Mbit/s.
Lee, S.C. Jeffrey; id_orcid   +23 more
core   +1 more source

High impedance fault modeling and location for transmission line [PDF]

open access: yes, 2022
A fault in a power system generates economic losses, security problems, social problems and can even take human lives. Therefore, it is necessary to have an efficient fault location strategy to reduce the exposure time and recurrence of the fault. This
Montoya, Oscar Danilo   +5 more
core   +1 more source

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