Abstract: The purpose of the present disclosure is to improve, in a design and configuring method of a non-reciprocal circuit element such as an isolator or a circulator, the design and configuring method so as to be suitable for miniaturization and mass production. Protrusions formed in a lower case of a device are assembled to openings formed in a cover case. Here, the cover case is aligned to be matched to the position of the protrusions of a lower case by means of a guide structure provided in the cover case, and the protrusions of the lower case and the openings of the cover case are assembled to each other.

Abstract: A reciprocal element includes a housing having a plurality of circumferential side portions with a plurality of openings and a bottom portion in which at least one removed portion is defined. A first lamination part includes a center conductor with a plurality of leads extending to the outside of the plurality of openings, respectively, wherein the first lamination part is laminated on the bottom portion. A frame includes a main body to accommodate the first lamination part, at least one leg portion extending from a lower edge of the main body and insertedly coupled to the removed portion, and a plurality of supporting portions extending in an outer direction from the main body to support the plurality of leads, wherein through-holes extend in a vertical direction and defined in the plurality of supporting portions, respectively; and a plurality of conductive pins coupled to the plurality of through-holes, respectively.

Abstract: A modularization of a circulator and a directional coupler used in a wireless communication system comprises: a circulator; and a signal coupler, where the signal coupler does not have directivity by itself, and directivity of the circulator module is controlled by isolation characteristics of the circulator to improve electrical characteristics of a wireless communication system and miniaturize the wireless communication system by applying the electrical characteristics in common with a circulator to modularize the wireless communication system without implementation of a circuit of a directional coupler capable of sampling high-frequency signals.

Abstract: A reciprocal element includes a housing having a plurality of circumferential side portions with a plurality of openings and a bottom portion in which at least one removed portion is defined. A first lamination part includes a center conductor with a plurality of leads extending to the outside of the plurality of openings, respectively, wherein the first lamination part is laminated on the bottom portion. A frame includes a main body to accommodate the first lamination part, at least one leg portion extending from a lower edge of the main body and insertedly coupled to the removed portion, and a plurality of supporting portions extending in an outer direction from the main body to support the plurality of leads, wherein through-holes extend in a vertical direction and defined in the plurality of supporting portions, respectively; and a plurality of conductive pins coupled to the plurality of through-holes, respectively.

Abstract: A modularization of a circulator and a directional coupler used in a wireless communication system comprises: a circulator; and a signal coupler, where the signal coupler does not have directivity by itself, and directivity of the circulator module is controlled by isolation characteristics of the circulator to improve electrical characteristics of a wireless communication system and miniaturize the wireless communication system by applying the electrical characteristics in common with a circulator to modularize the wireless communication system without implementation of a circuit of a directional coupler capable of sampling high-frequency signals.

Abstract: A multi-junction stripline circulator, comprising a housing with a cavity structure and a plurality of stripline junction circuits stacked within the cavity structure and connected in a cascade arrangement. Each stripline junction circuit comprises a stripline conductor having a plurality of ports, where one of the ports is connected to a port of a stripline conductor of each consecutive junction circuit in a cascade arrangement, and a pair of ferrite elements sandwiching the stripline conductor therebetween. The multi-junction stripline circulator further comprises one or more center ground planes, each having radial arms connected to ground. Each of the center ground planes are disposed between two consecutive stripline junction circuits in said cascade arrangement.

Abstract: A multi-junction stripline circulator, comprising a housing with a cavity structure and a plurality of stripline junction circuits stacked within the cavity structure and connected in a cascade arrangement. Each stripline junction circuit comprises a stripline conductor having a plurality of ports, where one of the ports is connected to a port of a stripline conductor of each consecutive junction circuit in a cascade arrangement, and a pair of ferrite elements sandwiching the stripline conductor therebetween. The multi-junction stripline circulator further comprises one or more center ground planes, each having radial arms connected to ground. Each of the center ground planes are disposed between two consecutive stripline junction circuits in said cascade arrangement.

Abstract: A radio frequency switching apparatus wherein a filter for a transmitter module passes a transmission frequency to an antenna in a transmission mode and isolates the antenna and the transmitter module from each other in a reception mode. The radio frequency switching apparatus comprises a filter connected between the transmitter module and the antenna for passing a transmitted signal from the transmitter module to the antenna in the transmission mode. The filter also acts to cut off a reception frequency in the reception mode. The switching apparatus further comprises a first switching device for isolating the transmitter module and the antenna from each other in the reception mode, and a second switching device for isolating the antenna and a receiver module from each other in the transmission mode. No separate ¼ wavelength strip line is required, making the circuitry of the switching apparatus simpler and, thus, the size thereof smaller.

Abstract: A radio frequency switching apparatus wherein a filter for a transmitter module passes a transmission frequency to an antenna in a transmission mode and isolates the antenna and the transmitter module from each other in a reception mode. The radio frequency switching apparatus comprises a filter connected between the transmitter module and the antenna for passing a transmitted signal from the transmitter module to the antenna in the transmission mode. The filter also acts to cut off a reception frequency in the reception mode. The switching apparatus further comprises a first switching device for isolating the transmitter module and the antenna from each other in the reception mode, and a second switching device for isolating the antenna and a receiver module from each other in the transmission mode. No separate 1/4 wavelength strip line is required, making the circuitry of the switching apparatus simpler and, thus, the size thereof smaller.