摘要:
A refrigeration device of an embodiment includes: a heat-insulating vacuum chamber; a refrigerator cryogenic unit that is provided in the heat-insulating vacuum chamber and is cooled to a lower temperature than 195 K; a catalytic electrode that is provided in the heat-insulating vacuum chamber and contains a transition metal at least in part of a surface thereof; a power supply that applies a voltage to the catalytic electrode; and a heating unit that is provided in the heat-insulating vacuum chamber and heats the catalytic electrode. In this refrigeration device, the catalytic electrode is insulated from the heat-insulating vacuum chamber and the heating unit, and the heating unit is insulated from the heat-insulating vacuum chamber and the catalytic electrode.
摘要:
A refrigeration device of an embodiment includes: a heat-insulating vacuum chamber; a refrigerator cryogenic unit that is provided in the heat-insulating vacuum chamber and is cooled to a lower temperature than 195 K; a catalytic electrode that is provided in the heat-insulating vacuum chamber and contains a transition metal at least in part of a surface thereof; a power supply that applies a voltage to the catalytic electrode; and a heating unit that is provided in the heat-insulating vacuum chamber and heats the catalytic electrode. In this refrigeration device, the catalytic electrode is insulated from the heat-insulating vacuum chamber and the heating unit, and the heating unit is insulated from the heat-insulating vacuum chamber and the catalytic electrode.
摘要:
There is disclosed a half-wavelength (λ/2) resonator which is constituted of a micro strip line or a strip line and in which line pattern portions are disposed symmetrically with respect to a reference line, connected to each other to form an L shape, and formed in an open loop shape so as to have open ends. For one pair of line pattern portions having the open ends, base portions connected to adjacent line pattern portions are disposed in the vicinity of the reference line, and the open ends are extended in opposite directions so that the ends are disposed apart from the reference line.
摘要:
A superconductor filter includes a superconductor receiver filter of a planar transmission line structure including a signal input line, a resonator element and a signal output line and configured to select a signal received from an antenna, a superconductor transmitter filter of a planar transmission line structure including a signal input line, a resonator element and a signal output line and configured to select a signal transmitted to the antenna, the transmitter filter being arranged non-parallel to the receiver filter, and a heat-insulating container housing the superconductor receiver filter and the superconductor transmitter filter.
摘要:
A superconductor filter comprises a plurality of resonance elements arranged between input-output lines formed on a substrate. Metal conductor sections serving to inhibit the spatial coupling between the adjacent resonance elements are arranged between prescribed resonance elements, and a prescribed resonance element is coupled with another resonance element by a coupling transmission line. It follows that each resonance element is coupled with another resonance element by the direct coupling via the coupling transmission line or by the spatial coupling via the space.
摘要:
A band pass filter configured by a planar structure circuit, includes resonators of distribution constant circuit type, transmission line paths coupling the resonators and excitation lines arranged at input/output sides. The transmission line path is provided with line path portions coupling the resonators or the resonator and the excitation line. The line path portion have a length which is (1+2m)/4-fold (m: natural number) of a wavelength corresponding to a center frequency of the frequency band, and each coupling part between the resonators and the line portion has a length substantially determined as a ¼ wavelength.
摘要:
A high-frequency device comprises a dielectric substrate, a filter element which has a plurality of resonating elements made of a first superconductor film on the dielectric substrate, a dielectric plate which faces the dielectric substrate substantially in parallel with the substrate and covers the plurality of resonating elements, and a spacing adjusting member configured to control the spacing between the dielectric plate and the dielectric substrate. The high-frequency device enables the pass-band frequency of the filter to be adjusted with high accuracy without variations in the skirt characteristic or ripple characteristic.
摘要:
A superconductor filter comprises a plurality of resonance elements arranged between input-output lines formed on a substrate. Metal conductor sections serving to inhibit the spatial coupling between the adjacent resonance elements are arranged between prescribed resonance elements, and a prescribed resonance element is coupled with another resonance element by a coupling transmission line. It follows that each resonance element is coupled with another resonance element by the direct coupling via the coupling transmission line or by the spatial coupling via the space.
摘要:
A filter includes a resonant unit which has a plurality of resonators respectively formed of each microstrip line and connected in cascade with one another, and a coupling unit which has at least one inter-resonator coupling of the resonant unit in an area within a range of ±45° (⅛-wavelength) in an electrical length from a voltage maximum point at a intermediate of the microstrip line.
摘要:
A filter includes a resonant unit which has a plurality of resonators respectively formed of each microstrip line and connected in cascade with one another, and a coupling unit which has at least one inter-resonator coupling of the resonant unit in an area within a range of ±45° (⅛-wavelength) in an electrical length from a voltage maximum point at a intermediate of the microstrip line.