Results 11 to 20 of about 1,085,425 (239)
In-situ characterization of spurious modes in HE11 transmission lines with a 5-port coupler
EPJ Web of Conferences, 2012 Real-time in-situ measurement of spurious modes in HE11 transmission lines is becoming an important topic for the design of next-generation ECRH installations (e.g. ITER), because the acceptable tolerances for the alignment of the waveguides and coupling
Tretiak D. +5 more
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Dielectric resonators and filters for cellular base-stations [PDF]
, 2003 The investigation into three types of dielectric resonators for use in base-station filtering applications is presented. The triple-mode cubic TE016 resonator is shown to have good performance for high Q applications.
Walker, Vanessa Evelyne Guillemette
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Effect of spurious resonant modes on the operation of radial mode piezoelectric transformers [PDF]
, 2018 This paper analyses both the intentional and unwanted resonant modes of radial piezoelectric transformers (PTs). lnitially, finite element analysis is performed to discover the type of spurious modes prevalent is radial mode PTs.
Foster, M., Davidson, J., Forrester, J.
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Sensors, 2023 Surface acoustic wave resonators are widely applied in electronics, communication, and other engineering fields. However, the spurious modes generally present in resonators can cause deterioration in device performance.
Yulong Liu +6 more
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On spurious instabilities on the β-planes with no mean flows [PDF]
Annales Geophysicae, 2010 Recent numerical calculations that suggest the existence of instabilities of the shallow water equations on the β-planes (both mid-latitudes and on the equator) are shown to be associated with spurious instabilities rather than genuine unstable modes.
N. Paldor
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Micromachines, 2022 To cope with ubiquitous wireless connectivity and the increased and faster data delivery in 5G communication, surface acoustic wave (SAW) filters are progressively requiring wider bandwidths.
Zengtian Lu +6 more
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IEEE Access, 2022 This article presents a mixed finite element method to find the resonant frequencies of 3-D closed cavity resonators filled with both electric and magnetic lossy, anisotropic media. By introducing a dummy variable with zero value in the 3-D linear vector
Wei Jiang, Shiling Zheng
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Three-stage automatic operational modal analysis using mathematical mode elimination by density-based clustering method [PDF]
مهندسی عمران شریفEstimating a structure's modal parameters is essential for various applications, including health monitoring, damage detection, design verification, and model updating.
A. Salar Mehrabad, A. Shooshtari
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IEEE Journal of Microwaves, 2023 The effects of spurious modes on the performance of microwave systems is studied using a Monte Carlo algorithm based on randomized mode mixtures. A high power microwave launcher for the heating of fusion plasmas is used as an example, but the method can ...
Burkhard Plaum
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IEEE Access, 2019 This paper presents a comprehensive study on a new family of slotted hemispherical resonators and their applications in waveguide bandpass filters (BPFs) to extend the spurious-free stopbands.
Jin Li, Kai-Dong Hong, Tao Yuan
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