Abstract: According to one embodiment, a circuit element includes a silicon substrate, a lower electrode, a dielectric film, and an upper electrode. The lower electrode is formed on a major surface of the silicon substrate by a doping process. The dielectric film is formed on the lower electrode. The upper electrode is formed on the dielectric film. The upper electrode includes a slit.

Abstract: A displacement conversion mechanism of an embodiment is a displacement conversion mechanism which is provided with a base, a displacement element which is in contact with the base and is displaced in a first direction, a first displacement portion which is in contact with the displacement element and can be displaced in the first direction, a second displacement portion which connects to an end of the first displacement portion at a first connection portion, and connects to the base at a second connection portion, and a third displacement portion which connects to the other end of the first displacement portion, connects to an end portion of the second displacement portion at a fourth connection portion, and can be displaced in a second direction intersecting with the first direction.

Abstract: A thermal insulation waveguide between a high-temperature unit and a low-temperature unit in a vacuum, chamber of an embodiment, the thermal insulation waveguide includes, a first substrate including a first line in the high-temperature unit, a second substrate including a second line in the low temperature unit, and a thermal insulation element connecting the substrates, and including a third line including an inductance component and connecting the first and second lines. The first substrate includes a first capacitor unit connected with the first line. The second substrate includes a second capacitor unit connected with the second line.

Abstract: An increase in size of a phase shifter is suppressed and a change amount of a passing phase is further increased. A phase shifter of an embodiment includes a signal input unit, first to fourth lines, a signal output unit, first and second phase variable elements, and a phase setter phase setter. The first line is connected to the signal input unit and the signal output unit. The second and the third lines branch from the first line at different points. The fourth line is connected to ends of the second and the third lines. The first phase variable element is connected to a connection point between the second and the fourth lines. The second phase variable element is connected to a connection point between the third and the fourth lines. The phase setter is connected to the first and the second phase variable elements.

Abstract: A high-frequency circuit of embodiments includes a dielectric substrate, a signal line, a circuit element, and an array of heat conductive patterns. The signal line is formed on at least one surface of the dielectric substrate, and transmits a high-frequency signal. The circuit element is formed on the at least one surface or both surfaces of the dielectric substrate. The array of heat conductive patterns is formed on the at least one surface of the dielectric substrate. The array of heat conductive patterns can generally release heat from the dielectric substrate. In addition, the array of heat conductive patterns has a resonant frequency equal to or greater than a frequency of a signal transmitted through the signal line.

Abstract: According to an embodiment, a control apparatus includes a shaper and a compensator. The shaper receives a first target value in position control of a controlled object and generates a second target value which changes substantially rampwise over a time equal to or shorter than a period corresponding to one of resonance frequencies of the controlled object until the second target value becomes equal the first target value. The compensator compensates for a control signal, used for controlling the controlled object, based on the second target value.

Abstract: According to an embodiment, a filter characteristic tuning apparatus includes a characteristic tuning member, an elastic member, a first movable member, a second movable member, and a driving mechanism. The elastic member comes in contact with a characteristic tuning member by deformation, and separates from the characteristic tuning member by a restoring force. The first movable member deforms the elastic member in a closing operation. The driving mechanism displaces a second movable member such that a projection opens/closes the first movable member. The characteristic tuning member changes a gap between the characteristic tuning member and the resonator by a linear driving force obtained by converting the transmitted rotary driving force.

Abstract: A displacement conversion mechanism of an embodiment is a displacement conversion mechanism which is provided with a base, a displacement element which is in contact with the base and is displaced in a first direction, a first displacement portion which is in contact with the displacement element and can be displaced in the first direction, a second displacement portion which connects to an end of the first displacement portion at a first connection portion, and connects to the base at a second connection portion, and a third displacement portion which connects to the other end of the first displacement portion, connects to an end portion of the second displacement portion at a fourth connection portion, and can be displaced in a second direction intersecting with the first direction.

Abstract: According to one embodiment, an electronic device includes a housing, an electronic component, a first conductor, and a second conductor. The housing includes a first plate portion, a second plate portion, and a third plate portion. The first plate portion has a first surface. The second plate portion is separated from the first surface. The third plate portion has a third surface. The electronic component is provided inside the housing. The first conductor is provided inside the first plate portion. The second conductor includes first region and a second region. The second conductor is provided between the first plate portion and the second plate portion. An end of the first region is connected to the first conductor. An opening is provided between at least a portion of the first region and at least a portion of the second region.

Abstract: A thermal insulation waveguide between a high-temperature unit and a low-temperature unit in a vacuum, chamber of an embodiment, the thermal insulation waveguide includes, a first substrate including a first line in the high-temperature unit, a second substrate including a second line in the low temperature unit, and a thermal insulation element connecting the substrates, and including a third line including an inductance component and connecting the first and second lines. The first substrate includes a first capacitor unit connected with the first line. The second substrate includes a second capacitor unit connected with the second line.

Abstract: According to an embodiment, a control apparatus includes a shaper and a compensator. The shaper receives a first target value in position control of a controlled object and generates a second target value which changes substantially rampwise over a time equal to or shorter than a period corresponding to one of resonance frequencies of the controlled object until the second target value becomes equal the first target value. The compensator compensates for a control signal, used for controlling the controlled object, based on the second target value.

Abstract: According to an embodiment, a filter characteristic tuning apparatus includes a characteristic tuning member, an elastic member, a first movable member, a second movable member, and a driving mechanism. The elastic member comes in contact with a characteristic tuning member by deformation, and separates from the characteristic tuning member by a restoring force. The first movable member deforms the elastic member in a closing operation. The driving mechanism displaces a second movable member such that a projection opens/closes the first movable member. The characteristic tuning member changes a gap between the characteristic tuning member and the resonator by a linear driving force obtained by converting the transmitted rotary driving force.

Abstract: According to one embodiment, a superconducting member includes a superconducting layer, a foundation layer, and an intermediate layer. The superconducting layer is made of an oxide including Cu and Ba. The foundation layer is made of cerium oxide. The intermediate layer is provided between the foundation layer and the superconducting layer, and is made of BaxCayCeO3 (0.6<x<0.8 and 0.2<y<0.4).