Abstract: A clamp jig includes: a pair of clamp bodies that extend in the radial direction of a stator core and that clamp, from both circumferential sides of the stator core, an end part of an electric conductor that is inserted into and welded to the stator core; and a sandwiched part that is supported so as to be able to rotate with respect to the clamp bodies and that abuts against the end part of the electric conductor when the end part of the electric conductor is clamped between the pair of clamp bodies. The sandwiched part has a plurality of abutting surfaces that can abut the end part of the electric conductor in a direction of rotation of the sandwiched part.

Abstract: The invention aims at providing an NRD guide transceiver not requiring a change-over switch for transmission and reception, a download system being of a simple structure and capable of downloading large-capacity data such as video data and the like in a short time using this transceiver and a download memory used in this system, said NRD guide transceiver comprising a pair of dielectric strips (154, 155) disposed between a pair of conductor plates (152, 153) arranged in parallel with each other at a specified interval, wherein Schottky barrier diodes (156, 157) are connected to the respective ends of both of said pair of dielectric strips, a low pass filter (164) is connected to a signal input terminal and a high pass filter (165) is connected to an IF output terminal.

Abstract: An LSE mode, which is a parasitic mode, can be effectively suppressed by a simple structure, and a reduction in size and weight can be thereby facilitated. Further, a metal body 3 is arranged in the vicinity of a dielectric waveguide 1 of an NRD guide to suppress the LSE mode, the NRD guide being configured to propagate electromagnetic waves through the dielectric waveguide 1 which is sandwiched between parallel conductor plates with a gap of less than a ½ wavelength. This metal body 3 has an arbitrary shape, and may have a discoid shape, an elliptic shape or a prismatic shape. Furthermore, an even distance d is maintained between the metal body 3 and the dielectric waveguide 1, and a phase constant difference can be suppressed by changing this distance d.

Abstract: In order to realize with a low loss a hybrid structure in which an NRD guide is used for a transmission part and a microstrip line is used for a circuit element loading part, the present device includes: a dielectric waveguide (1) which is sandwiched between parallel conductor plates and has a gap which is less than a ½ wavelength; a microstrip line (4) which is provided on a side surface of a metal rod (3) opposite to the dielectric waveguide (1), the metal rod (3) being adjacently arranged in parallel with the dielectric waveguide (1); and a coaxial line (5) which pierces the metal rod (3) and connects the dielectric waveguide (1) with the microstrip line (4).

Abstract: The invention aims at providing an NRD guide transceiver not requiring a change-over switch for transmission and reception, a download system being of a simple structure and capable of downloading large-capacity data such as video data and the like in a short time using this transceiver and a download memory used in this system, said NRD guide transceiver comprising a pair of dielectric strips (154, 155) disposed between a pair of conductor plates (152, 153) arranged in parallel with each other at a specified interval, wherein Schottky barrier diodes (156, 157) are connected to the respective ends of both of said pair of dielectric strips, a low pass filter (164) is connected to a signal input terminal and a high pass filter (165) is connected to an IF output terminal.

Abstract: In order to realize with a low loss a hybrid structure in which an NRD guide is used for a transmission part and a microstrip line is used for a circuit element loading part, the present device includes: a dielectric waveguide (1) which is sandwiched between parallel conductor plates and has a gap which is less than a ½ wavelength; a microstrip line (4) which is provided on a side surface of a metal rod (3) opposite to the dielectric waveguide (1), the metal rod (3) being adjacently arranged in parallel with the dielectric waveguide (1); and a coaxial line (5) which pierces the metal rod (3) and connects the dielectric waveguide (1) with the microstrip line (4).

Abstract: An LSE mode, which is a parasitic mode, can be effectively suppressed by a simple structure, and a reduction in size and weight can be thereby facilitated. Further, a metal body 3 is arranged in the vicinity of a dielectric waveguide 1 of an NRD guide to suppress the LSE mode, the NRD guide being configured to propagate electromagnetic waves through the dielectric waveguide 1 which is sandwiched between parallel conductor plates with a gap of less than a ½ wavelength. This metal body 3 has an arbitrary shape, and may have a discoid shape, an elliptic shape or a prismatic shape. Furthermore, an even distance d is maintained between the metal body 3 and the dielectric waveguide 1, and a phase constant difference can be suppressed by changing this distance d.

Abstract: A plasma processing system provided with a vacuum chamber for accommodating a substrate and for generation of plasma in a space in the front of the same, an antenna provided at the vacuum chamber, and a high frequency power source for supplying high frequency power to the antenna. The antenna emits high frequency power, generates plasma inside the vacuum chamber, and processes the surface of the substrate by the plasma. In the plasma processing system, the antenna has a disk-shaped conductor plate having a predetermined thickness. A coaxial waveguide having a folded portion is formed around the disk-shaped conductor plate. The folded portion of the waveguide is provided with a short-circuit 3 dB directional coupler having an impedance matching function. The antenna having the above structure prevents the generation of a standing wave in the high frequency wave propagation path from the high frequency power source to the vacuum chamber and generates high density plasma by supply of a large power.

Abstract: A plasma processing system provided with a vacuum chamber for accommodating a substrate and for generation of plasma in a space in the front of the same, an antenna provided at the vacuum chamber, and a high frequency power source for supplying high frequency power to the antenna. The antenna emits high frequency power, generates plasma inside the vacuum chamber, and processes the surface of the substrate by the plasma. In the plasma processing system, the antenna has a disk-shaped conductor plate having a predetermined thickness. A coaxial waveguide having a folded portion is formed around the disk-shaped conductor plate. The folded portion of the waveguide is provided with a short-circuit 3 dB directional coupler having an impedance matching function. The antenna having the above structure prevents the generation of a standing wave in the high frequency wave propagation path from the high frequency power source to the vacuum chamber and generates high density plasma by supply of a large power.

Abstract: A leakage dielectric waveguide includes a housing made of plane-shaped electrical conductors located parallel to each other, and a dielectric strip for propagating a high-frequency wave between the parallel electrical conductors, wherein the dielectric strip is provided within the housing. The housing is arranged to be asymmetrical, thereby leaking and radiating a high-frequency wave propagating through the dielectric strip. The housing is preferably further composed of the plane-shaped parallel electrical conductors and a side wall. A plane antenna includes the above-mentioned leakage dielectric waveguide, and a projecting device for projecting the high-frequency wave toward a free space in response to a high-frequency wave being projected from the dielectric waveguide.

Abstract: Dielectric strips made of a dielectric material are placed between a pair of conductor plates located a specified distance apart. Cutouts are formed in the dielectric strips. The cutouts, a part of each dielectric strip is formed into an electrically asymmetric portion. When high-frequency power is supplied to the dielectric strips, the power is transmitted through an NRD waveguide composed of the dielectric strips and the pair of conductor plates, with the result that electromagnetic wave is radiated from the cutouts into the space between the conductor plates. This electromagnetic wave excites the radiation elements formed in the conductor plates, which then radiate electromagnetic waves.

Abstract: A dielectric waveguide consists of dielectric strips sandwiched between two parallel conductive plates whose inner surfaces are covered with thin dielectric layers. The other space of the waveguide is filled with an appropriate dielectric medium which can be air or any other low loss dielectric material whose dielectric constant is smaller than that of the dielectric strips. In this waveguide, radiated waves which might be generated at the curved sections and any other discontinuities of the dielectric strips can almost completely be suppressed due to the cutoff property of the conductive plates, if the electric field of electromagnetic waves to be transmitted is polarized primarily parallel to the conductive plates and relevant parameters of the waveguide are chosen to satisfy the following inequality: ##STR1## where .epsilon..sub.