In this paper, a dual-bridge DC/DC resonant converter with a generalized series and parallel resonant tank is analyzed. A general approach based on Fundamental Harmonic Approximation is used to find the universal steady-state solutions. The analysis results for particular resonant tank configurations are exemplified with several typical resonant tank configurations respectively. The corresponde...

Energy stored in a resonant medium may be used to amplify the Cerenkov radiation generated by a small driving bunch. The hybrid eigenmode of the system is a combination of Cerenkov radiation and eigenmode of the resonant medium. In the vicinity of the resonant frequency of the medium and when Cerenkov condition is satisfied, the eigenfrequency has an imaginary part. The latter occurs in a relat...

We present ultrawide flat-band reflectors enabled with multilevel resonant leaky-mode structures. The reflectors are designed using particle swarm optimization. We show that three-level silicon-on-insulator structures provide bandwidths of approximately 840 nm for TE polarization and approximately 835 nm for TM polarization, across which reflectance is greater than 99% and 97.5%, respectively. ...

This letter proposes using the electromagnetic resonant modes of a hollow metallic structure to provide wireless power to small receivers contained anywhere inside. The coupling between a large chamber (used as a cavity resonator) and a small wire loop (used as a receiver) is studied. An analytic expression for the coupling coefficient between the fields in the cavity and a loop receiver is der...

We present spatially resolved spectral mode mapping of resonant plasmon gap antennas using two-photon luminescence microspectroscopy. The obtained maps are in good agreement with 3D calculations of the antenna modes. The evolution of the modal field with wavelength, both in the gap and along the two coupled gold nanowires forming the antenna, is directly visualized. At resonance, the luminescen...

ADAPTIVE RESONANT MODE ACTIVE NOISE CONTROL Adam K. Smith, MS University of Pittsburgh, 2005 Low frequency sound waves propagating in a duct is ideally suited for active noise control (ANC) applications. Unlike passive treatments, ANC utilizes an acoustic actuator (loudspeaker) to cancel unwanted sound fields. There are two main control topologies when considering the active suppression of soun...

Multiple-modes of structural vibration can be suppressed through the connection of an electrical impedance to the terminals of a bonded piezoelectric transducer. The so-called resonant shunts, one commonly used class of shunt impedances, provide good nominal damping performance but they are highly sensitive to variations in transducer capacitance and structural resonance frequencies. This paper...

In systems with midplane reflection symmetry the dominant spatial resonance is the 1:3 resonance. Numerical continuation is used to study this and other 1:2k11 resonances in two-dimensional convection between no-slip perfectly conducting horizontal plates. Periodic boundary conditions are imposed in the horizontal. These resonances influence the process of wave number selection at moderate Rayl...

Soon after the discovery of arsenic-free iron-selenide superconductors AxFe2−ySe2 (A = K, Rb, Cs), also known as 245-compounds, their unprecedented physical properties came to light, such as the coexistence of high-Tc superconductivity with strong antiferromagnetism. The pairing mechanism and the symmetry of the superconducting order parameter in this family of compounds still remain among the ...