Abstract:
A resonator includes a translator, a stator. and a control circuit. The control circuit is configured to provide first and second translator voltages and first through third stator voltages, wherein the translator is configured to move with respect to the stator at a resonant frequency of the resonator in response to the control circuit.
Abstract:
A metamaterial (100) is disclosed herein. In one embodiment, the metamaterial (100) includes an arrangement of S-shaped resonators (102) which are supported at the ends of the array by a window frame (110,112) to enable the arrangement of resonators (102) to be suspended in space. Methods for producing such a metamaterial are also disclosed.
Abstract:
Disclosed is an apparatus for use in wireless energy transfer, which includes a first resonator structure configured for energy transfer with a second resonator structure over a distance D larger than characteristic sizes, [insert formula] and [insert formula], of the first and second resonator structures. A power generator is coupled to the first structure and configured to drive the first resonator structure or the second resonator structure at an angular frequency away from the resonance angular frequencies and shifted towards a frequency corresponding to an odd normal mode for the resonator structures to reduce radiation from the resonator structures by destructive far-field interference.
Abstract:
A metamaterial (100) is disclosed herein. In one embodiment, the metamaterial (100) includes an arrangement of S-shaped resonators (102) which are supported at the ends of the array by a window frame (110,112) to enable the arrangement of resonators (102) to be suspended in space. Methods for producing such a metamaterial are also disclosed.
Abstract:
A method for constructing a distributed element coaxial resonator includes folding a coaxial resonator to provide a structure having a decreased physical length compared to its electrical length. In various embodiments, the resonator is tuned to affect a standing wave when excited by a signal of a specific wavelength. The coaxial resonator includes inner, middle and outer conductor sections, wherein the characteristic impedance is maintained throughout the resonator.
Abstract:
Изобретение относится к области радиотехники и электроники и может быть использовано для генерации импульсов высокой мощности посредством накопления энергии в резонансных контурах с последующим разрядом её через нагрузку. Изобретение основано на использовании нелинейности нарастания энергии резонатора при переходном процессе установления колебаний. Устройство состоит из источника электромагнитных волн, фидерной линии, резонатора, ключа (коммутатора). В качестве резонатора может использоваться колебательный контур радиоприемника, объемный или коаксиальный резонатор, участок фидерной линии и т.д. качестве ключа - транзистор, рiп- диоды, вакуумная лампа, газовый разряд и т.д. В качестве нагрузки - ректенна, активная нагрузка и.т.д. Достигаемый технический результат - повышение коэффициента усиления по мощности и энергии сигнала, повышение добротности контуров (без нагрузки).
Abstract:
Systems and methods are taught for blocking the propagation of electromagnetic waves in parallel-plate waveguide (PPW) structures. Periodic arrays of resonant vias are used to create broadband high frequency stop bands in the PPW, while permitting DC and low frequency waves to propagate. Some embodiments of resonant via arrays are mechanically balanced, which promotes improved manufacturability. Important applications include electromagnetic noise reduction in layered electronic devices such as circuit boards, ceramic modules, and semiconductor chips.
Abstract:
A thin film resonator having enhanced performance and a manufacturing method thereof are disclosed. The thin film resonator includes a supporting means, a first electrode, a dielectric layer and a second electrode. The supporting means has several posts and a supporting layer formed on the posts. The first electrode, the dielectric layer and the second electrode are successively formed on the supporting layer. The thin film resonator is exceptionally small and can be highly integrated, and the thickness of the dielectric layer of the resonator can be adjusted to achieve the integration of multiple bands including radio, intermediate and low frequencies. Also, the thin film resonator can minimize interference and has ideal dimensions because of its compact substrate, making the thin film resonator exceptionally small, yet comprising a three-dimensional, floating construction.
Abstract:
Composite media having simultaneous negative effective permittivity and permeability over a common band of frequencies. A composite media of the invention combines media, which are either themselves separately composite or continuous media, having a negative permittivity and a negative permeability over a common frequency band. Various forms of separate composite and continuous media may be relied upon in the invention. A preferred composite media includes a periodic array of conducting elements (10, 12, 24, 26) that can behave as an effective medium for electromagnetic scattering when the wavelength is much longer than both the element dimension and lattice spacing. The composite media has an effective permittivity epsilon eff( omega ) and permeability mu eff( omega ) which are simultaneously negative over a common set of frequencies. Either one or both of the negative permeability and negative permittivity media used in the invention may be modulable via external or internal stimulus. Additionally, the medium or a portion thereof may contain other media that have medium electromagnetic parameters that can be modulated. The frequency position, bandwidth, and other properties of the left-handed propagation band can then be altered, for example, by an applied field or other stimulus. Another possibility is the use of a substrate which responds to external or internal stimulus.
Abstract:
A method of making a low-loss electromagnetic wave resonator structure. The method includes providing a resonator structure, the resonator structure including a confining device and a surrounding medium. The resonator structure supporting at least one resonant mode, the resonant mode displaying a near-field pattern in the vicinity of said confining device and a far-field radiation pattern away from the confining device. The surrounding medium supports at least one radiation channel into which the resonant mode can couple. The resonator structure is specifically configured to reduce or eliminate radiation loss from said resonant mode into at least one of the radiation channels, while keeping the characteristics of the near-field pattern substantially unchanged.