Superconducting arrangement with non-orthogonal degenerate resonator modes
First Claim
1. Superconducting switching arrangement comprising a number of signal input means, a number of signal output means, a number of resonators providing a number of filters, each filter representing a channel, the resonators at least operating in dual mode, and tuning means, wherein asymmetries are produced in the resonators to provide an electric field redistribution so that degenerate resonator modes are created, and the tuning means tune at least some of the resonators, further comprising first coupling means to provide mutual coupling between degenerate modes in the resonators, wherein an input means and an output means are arranged such that at lest one angle is formed for which the degenerate modes become coupled, said angle forming first coupling means, and wherein the coupling angle is an azimuthal angle between the signal input and a resonator symmetry axis, and the degenerate modes are non-orthogonal in relation to each other.
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Abstract
Superconducting multiplexing/demultiplexing arrangements include a number of signal input devices and a number of signal output devices. A number of resonators provides a number of filters. Each filter represents a channel. The resonator(s) operate(s) devices at lest in dual mode, and tuning devices are provided so that at least some of the resonators is/are tuneable. A method is provided of multiplexing signals incoming to a multiplexing arrangement with a number of resonators, each of the resonators having a number of input ports which are so arranged that a number of mulitpole filters are created. Input signals having different frequencies are supplied to the different input ports of the resonators, each of which is operated in three modes. Coupling devices are arranged which at least comprise the angle between the input ports and a symmetry plane. The angles are non-perpendicularly azimuth. Tuning devices are further provided for tuning the resonant frequencies of the degenerate modes, and the coupling angles and tuning devices are controlled so that for a number of input signals, only input signal is transmitted to the output devices.
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Citations
27 Claims
- 1. Superconducting switching arrangement comprising a number of signal input means, a number of signal output means, a number of resonators providing a number of filters, each filter representing a channel, the resonators at least operating in dual mode, and tuning means, wherein asymmetries are produced in the resonators to provide an electric field redistribution so that degenerate resonator modes are created, and the tuning means tune at least some of the resonators, further comprising first coupling means to provide mutual coupling between degenerate modes in the resonators, wherein an input means and an output means are arranged such that at lest one angle is formed for which the degenerate modes become coupled, said angle forming first coupling means, and wherein the coupling angle is an azimuthal angle between the signal input and a resonator symmetry axis, and the degenerate modes are non-orthogonal in relation to each other.
- 23. Tuneable filter for electromagnetic signals comprising a number of input ports, a number of output ports, a number of resonators, and tuning means, wherein asymmetries are produced in the resonator(s) to provide a current or an electric field redistribution so that degenerate resonator modes are created, each resonator being a multimode resonator, and the tuning means tune resonant frequencies of the degenerate modes, wherein each resonator comprises at least tow azimuthally degenerate modes which are not perpendicular to each other, and coupling between the degenerate modes is given by an azimuthal angle between the respective input port and a resonator symmetry plane, and the degenerate modes are non-orthogonal in relation to each other.
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26. Method for multiplexing electromagnetic signals incoming to a multiplexing arrangement comprising a number of resonators, each with a number of input ports so arranged that a number of mulitpole filters are created, the method comprising the steps of:
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supplying a number of input signals having different frequencies to the different input ports of resonators, each of which comprises at least two input ports, operating each resonator in three modes, arranging coupling means for the resonator, wherein said coupling means comprises the introduction of asymmetries to provide a current or an electric field redistribution so that degenerate modes are formed, and the degenerate modes are non-orthogonal in relation to each other, providing tuning means for tuning resonant frequencies of the degenerate modes, and controlling coupling angles and tuning means in such a way that for a number of input signals, only one input signal can be transmitted to output means, wherein the coupling means comprises angles between the input ports and a symmetry axis, which angles are nonperpendicularly azimuth. - View Dependent Claims (27)
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Specification