Results 81 to 90 of about 4,683 (209)

W-Band Hybrid Unequal Feeding Network of Waveguide and Substrate Integrated Waveguide for High Efficiency and Low Sidelobe Level Slot Array Antenna Application

open access: yesInternational Journal of Antennas and Propagation, 2017
A W-band hybrid unequal feeding network of waveguide and substrate integrated waveguide (SIW) is presented in this paper. It comprises a two-way hybrid waveguide-SIW E-plane divider and an unequal SIW dividing network. Firstly, the two-way hybrid divider
Jun Wang, Yu Jian Cheng
doaj   +1 more source

Fabrication of Microwave Devices Based on Magnetic Nanowires Using a Laser-Assisted Process

open access: yesMicromachines, 2019
This paper compares two laser-assisted processes developed by the authors for the fabrication of microwave devices based on nanowire arrays loaded inside porous alumina templates.
Vivien Van Kerckhoven   +2 more
doaj   +1 more source

Foldable all-textile cavity-backed slot antennas for personal UWB localization [PDF]

open access: yes, 2020
An all-textile multimoded cavity-backed slot antenna has been designed and fabricated for body-worn impulse radio ultra-wideband (IR-UWB) operation in the 3,744-4,742.4 MHz frequency band, thereby covering Channels 2 and 3 of the IEEE 802.15.4a standard.
Lemey, Sam   +4 more
core   +1 more source

Studying a Method for Applying Phase Shift Using a Three‐Channel Phase Shifter at a Central Frequency of 10 GHz: Design, Simulation and Construction

open access: yesEngineering Reports, Volume 7, Issue 2, February 2025.
Design of a three‐channel power divider using integrated waveguide technology in the substrate. Phase curve of scattering parameters and comparison of simulation and measurement result for three modes: (A) without metal post, (B) three‐channel with two posts metallic. ABSTRACT Feeding phased array antennas are crucial components of this type of antenna
Esmail Zarezadeh   +2 more
wiley   +1 more source

Ejemplo práctico de diseño de un filtro en iris rectangular empleando tecnología SIW para laboratorios docentes [PDF]

open access: yes, 2014
Comunicación presentada en el XXIX Simposium Nacional de la Unión Científica Internacional de Radio, URSI 2014, Valencia, Septiembre 2014.This paper presents the design and practical implementation of a waveguide-based microwave filter in Substrate ...
Coves Soler, Ángela María   +4 more
core  

Wearable flexible lightweight modular RFID tag with integrated energy harvester [PDF]

open access: yes, 2016
A novel wearable radio frequency identification (RFID) tag with sensing, processing, and decision-taking capability is presented for operation in the 2.45-GHz RFID superhigh frequency (SHF) band.
Agneessens, Sam   +5 more
core   +2 more sources

Three‐Way Equal Filtering Power Divider for Modern Communication Systems

open access: yesEngineering Reports, Volume 7, Issue 1, January 2025.
A balanced three‐way filtering power divider that receives input power and delivers equal amount of output to its three output ports is developed and realized using microstrip technology. The design is well‐suited for modern communication systems due to its low insertion and return losses, sharp selectivity, and integrated filtering capability ...
Augustine O. Nwajana, Rose Paul
wiley   +1 more source

Design of 60GHz Planar Array Antennas Using PCB-based Microstrip-Ridge Gap Waveguide and SIW [PDF]

open access: yes, 2014
A wideband 2×2-slot element for a 60 GHz antenna array is designed by making use of two double-sided printed circuit boards (PCBs). The upper PCB contains the four radiating cavity-backed slots backed by a substrate-integrated waveguide (SIW) cavity. The
Alfonso, Esperanza   +4 more
core   +1 more source

Compact Dual‐Band Microstrip Array Feed Network Using CRLH‐TL Power Dividers

open access: yesIET Communications, Volume 19, Issue 1, January/December 2025.
This paper presents a dual‐band array feed network based on composite right/left‐handed transmission lines, designed to achieve both high efficiency and compactness. The network delivers quadraturephased, equally divided output signals, facilitating circular polarization across the ultra high frequency and industrial, scientific, and medical frequency ...
Aslan Nouri Moqadam   +4 more
wiley   +1 more source

New antenna topologies for 5G communication systems [PDF]

open access: yes, 2016
This paper presents new antenna topologies for 5G communication systems. The objective is the study of low losses distribution network technologies and the radiating elements for low profile antennas for 5G applications.
Fernandez Gonzalez, José Manuel   +5 more
core   +1 more source

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