Results 11 to 20 of about 111,038 (269)

Design of a Compact Quad-Channel Microstrip Diplexer for L and S Band Applications

open access: yesMicromachines, 2023
In this paper, two novel dual-band bandpass filters (BPFs) and a compact quad-channel diplexer working at 1.7/3.3 GHz and 1.9/3.6 GHz are proposed. In the proposed diplexer design, triangular loop resonators and rectangular loop resonators are used ...
Sobhan Roshani   +6 more
doaj   +1 more source

Fabrication of Capacitive Acoustic Resonators Combining 3D Printing and 2D Inkjet Printing Techniques

open access: yesSensors, 2015
A capacitive acoustic resonator developed by combining three-dimensional (3D) printing and two-dimensional (2D) printed electronics technique is described.
Rubaiyet Iftekharul Haque   +4 more
doaj   +1 more source

Surface Acoustic Wave Resonators for Wireless Sensor Network Applications in the 433.92 MHz ISM Band

open access: yesSensors, 2020
Surface acoustic wave (SAW) resonators are low cost devices that can operate wirelessly on a received radio frequency (RF) signal with no requirement for an additional power source.
Evangelos Moutoulas   +2 more
doaj   +1 more source

QUICK-ACTING, CONTROLLABLE PHASE SHIFTER FOR PHASE ANGLE ADJUSTMENT IN RADIO SIGNALS [PDF]

open access: yesRadio Physics and Radio Astronomy, 2022
Subject and Purpose. The phase shifters intended for controlling the phase of radio signals are widely used in ultra-high frequency technology, communication systems, radar, and a variety of measuring and special-purpose radio equipment.
I. M. Mytsenko, O. M. Roenko
doaj   +1 more source

MODELING OF THE FINE PARTICLES DRIFT IN ACOUSTIC RESONATOR USING CFD–PACKAGE

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2018
The particles driftin closed tuberesonator by the influence of viscous drag force using CFD package was considered. On the left bound of resonator gas velocity oscillates harmonically at the first resonant frequency.
D. A. Gubaidullin   +2 more
doaj   +1 more source

Reconfigurable Terahertz Metamaterial Using Split-Ring Meta-Atoms with Multifunctional Electromagnetic Characteristics

open access: yesApplied Sciences, 2020
We propose a reconfigurable terahertz (THz) metamaterial (RTM) to investigate its multifunctional electromagnetic characteristics by moving the meta-atoms of split-ring resonator (SRR) array.
Yuhang Liao, Yu-Sheng Lin
doaj   +1 more source

Inclination Sensor With a Wide Angle Measurement Range Using Half-Wavelength Microstrip Resonator

open access: yesIEEE Access, 2023
In this article, a new inclinometer concept based on an angular half-wavelength microstrip resonator is presented. The inclinometer has a wide dynamic range of 84° (B142°) which can be extended to 180° through a simple modification ...
Shabnam Ahmadi Andevari   +2 more
doaj   +1 more source

A Closed Cavity Ultrasonic Resonator Formed by Graphene/PMMA Membrane for Acoustic Application

open access: yesMicromachines, 2023
A graphene/poly(methyl methacrylate) (PMMA) closed cavity resonator with a resonant frequency at around 160 kHz has been fabricated. A six-layer graphene structure with a 450 nm PMMA laminated layer has been dry-transferred onto the closed cavity with an
Jing Xu   +5 more
doaj   +1 more source

Performance Analysis of Resonant-Fin Transistors and Their Application in RF-Circuit Design

open access: yesIEEE Access, 2022
Emerging new communication standards like 5G or 6G aggravate the circuit design of radio-frequency generation systems as they constantly increase demand on high bandwidths, low latency, and high spectral purity.
Richard Hudeczek   +3 more
doaj   +1 more source

An example of design, optimization, stabilization and noise performances of resonator-based optoelectronic oscillators

open access: yesInternational Journal for Simulation and Multidisciplinary Design Optimization, 2019
In this paper we talk about oscillators of optoelectronic type with intensity modulators and high-quality optical resonators technology. This subject is illustrated by an example of realization from the material to the characterization of the realized ...
Salzenstein Patrice
doaj   +1 more source

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