Abstract: A non-reciprocal circuit element, such as an isolator or a circulator, which is incorporated in various microwave devices and rotationally changes a transmission path for microwaves by a gyromagnetic effect. The non-reciprocal circuit element has a simple structure and superiority in assembly and allows easy achievement of height reduction and size reduction while preventing fracture of a ferrite plate.

Abstract: There is provided a non-reciprocal circuit element which has a simple structure and superiority in assembly and allows easy achievement of height reduction and size reduction while preventing fracture of a ferrite plate.

Abstract: A signal transmission cable with a connector, that includes a shielded cable having a shielding layer and an insulating coating layer, which cover a periphery of a plurality of insulated wires, and a magnetic powder compound layer interposed between the shielding layer and the insulating coating layer; a connector which is electrically and mechanically connected to at least one end of the shielded cable, and which has a shielding metal cover extending from a housing part to a cable end, the housing part holding terminals to be connected to the insulated wires; and a closed magnetic path core which is fitted on the shielding layer with the insulating coating layer partly removed at the end of the shielded cable. The shielding layer is folded back so as to cover outside of the closed magnetic path core and a tip portion of the shielding layer is connected to the shielding metal cover.

Abstract: Provided is a signal transmission cable with a connector, including: a shielded cable having a shielding layer and an insulating coating layer, which cover a periphery of a plurality of insulated wires, and a magnetic powder compound layer interposed between the shielding layer and the insulating coating layer; a connector which is electrically and mechanically connected to at least one end of the shielded cable, and which has a shielding metal cover extending from a housing part to a cable end, the housing part holding terminals to be connected to the insulated wires; and a closed magnetic path core which is fitted on a separated part of the insulating coating layer at the end of the shielded cable.

Abstract: A dielectric resonator with a dielectric block. The block has a plurality of resonance apertures and coupling-prevention aperture between the adjacent resonance apertures within the block. The block is entirely coated with a conductive film except a limited portion around the one end of the resonance apertures.

Abstract: A dielectric resonator block has at least three resonators and coupling device for coupling the adjacent resonators. A reactance element is added in parallel to the coupling device to provide an attenuation pole. A capacitor block of a dielectric material is provided which has through-holes to form hole electrodes and a surface electrode so that two coupling capacitances are provided. One of the two coupling capacitances serves as the reactance element. One of the hole electrodes of the capacitor block is connected with an external connector, and the other hole electrodes are connected with the resonators.