Results 11 to 20 of about 106,916 (291)
Dielectric resonator bandstop filters [PDF]
, 2011 Dielectric resonators have been widely employed in wireless and satellite communication systems due to their inherently large Q allowing them to fashion low loss and narrow bandwidth filters.
Chan, Richard Kayip
core +6 more sources
, 2004 A sensor and methods for making and using the same in which a mechanical resonator is employed, comprising a resonator portion for resonating in a fluid without the substantial generation of acoustic waves; and an electrical connection between the ...
Padowitz, David +2 more
core +5 more sources
Resonances of rectangular resonators [PDF]
The Journal of the Acoustical Society of America, 1981 We have used variational methods based on the work of Holland and Eernisse to predict the resonant frequencies of rectangular resonators for use in acoustic transducer arrays. We have predicted both the open and short circuited resonances and have compared the theoretical results obtained with a large number of experiments carried out on such ...
P. A. Bennett, G. S. Kino
openaire +1 more source
Cylindrical Resonator Sectorally Filled With DNG Metamaterial and Excited by a Line Source [PDF]
, 2012 A circular cylindrical resonator with metallic walls is analyzed in the phasor domain. The resonator contains a wedge of double-negative (DNG) metamaterial that is anti-isorefractive to the double-positive (DPS) material filling the remaining volume of ...
Graglia, Roberto +4 more
core +1 more source
Surface Acoustic Wave Resonators for Wireless Sensor Network Applications in the 433.92 MHz ISM Band
Sensors, 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
Inclination Sensor With a Wide Angle Measurement Range Using Half-Wavelength Microstrip Resonator
IEEE 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
Sensors, 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
Applied 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
A Closed Cavity Ultrasonic Resonator Formed by Graphene/PMMA Membrane for Acoustic Application
Micromachines, 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
MODELING OF THE FINE PARTICLES DRIFT IN ACOUSTIC RESONATOR USING CFD–PACKAGE
Известия 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