Abstract: A phase shifter according to at least one embodiment of the present disclosure has a housing provided on both surfaces with respective shifting units. Each shifting unit is composed of a fixed board and a moving board. Movement of the moving board causes a phase-shifted signal to be simultaneously transferred from both surfaces of the housing to output ports. This allows more effective use of the space of the phase shifter and therearound.

Abstract: The present disclosure relates to an antenna device for a mobile communication system, including a reflection plate, a service band separator/coupler and a radome. The reflection plate is configured in a plate shape, multiple radiation elements being mounted on one surface of the reflection plate so as to transmit/receive radio signals. The service band separator/coupler is installed on the other surface of the reflection plate so as to separate/couple the service band of the corresponding antenna device. The radome is configured in the shape of an integrated barrel that surrounds the reflection plate and the service band separator/coupler as a whole.

Abstract: A phase shifter according to at least one embodiment of the present disclosure has a housing provided on both surfaces with respective shifting units. Each shifting unit is composed of a fixed board and a moving board. Movement of the moving board causes a phase-shifted signal to be simultaneously transferred from both surfaces of the housing to output ports. This allows more effective use of the space of the phase shifter and therearound.

Abstract: The present disclosure relates to an antenna device for a mobile communication system, including a reflection plate, a service band separator/coupler and a radome. The reflection plate is configured in a plate shape, multiple radiation elements being mounted on one surface of the reflection plate so as to transmit/receive radio signals. The service band separator/coupler is installed on the other surface of the reflection plate so as to separate/couple the service band of the corresponding antenna device. The radome is configured in the shape of an integrated barrel that surrounds the reflection plate and the service band separator/coupler as a whole.

Abstract: A phone is provided. The phone comprises a first body having a first face, a second body having a second face facing the first face and connected to the first body so as to be slidable in a moving direction parallel to the first and second faces, guiding members protruding from the first face, and a sliding member mounted on the second face and guiding the guiding members so as to slide in the moving direction. The sliding member includes insert members, each of which has a guide groove, disposed parallel to the moving direction to allow the respective guiding members to be inserted thereinto and housings fixedly mounted on the second face to house the respective insert members. The space defined by the first body and the second body is minimized. With this configuration, the first body is movable in a circular arc direction relative to the second body and has the same curvature as the second body.

Abstract: A phone is provided. The phone comprises a first body having a first face, a second body having a second face facing the first face and connected to the first body so as to be slidable in a moving direction parallel to the first and second faces, guiding members protruding from the first face, and a sliding member mounted on the second face and guiding the guiding members so as to slide in the moving direction. The sliding member includes insert members, each of which has a guide groove, disposed parallel to the moving direction to allow the respective guiding members to be inserted thereinto and housings fixedly mounted on the second face to house the respective insert members. The space defined by the first body and the second body is minimized. With this configuration, the first body is movable in a circular arc direction relative to the second body and has the same curvature as the second body.