Abstract: An antenna apparatus includes: an antenna module having a radiation-oriented surface in a first direction to transmit and receive a radio signal; and a radio-wave reinforcement member arranged in a second direction opposite to the first direction within a preset distance from the antenna module to amplify radiation performance of the antenna module, and including an electric conductor having a curved surface concave to the antenna module.

Abstract: An antenna apparatus includes: an antenna module having a radiation-oriented surface in a first direction to transmit and receive a radio signal; and a radio-wave reinforcement member arranged in a second direction opposite to the first direction within a preset distance from the antenna module to amplify radiation performance of the antenna module, and including an electric conductor having a curved surface concave to the antenna module.

Abstract: A magnetic resonance imaging (MRI) device includes at least one switching cell that uses a first switcher to switch paths for two of four radio frequency (RF) signals is used to output the two RF signals. The MRI device includes RF coils including a plurality of coils for receiving RF signals from an object to which magnetic fields are applied; an image processor for creating a magnetic resonance image based on the received RF signals; and a switching unit for switching connections between a plurality of input ports connectable to the plurality of coils and a plurality of output ports connectable to the image processor, wherein the switching unit includes at least one switching cell including four input ports, two output ports connected to two of the four input ports, and a first switcher for switching between paths extended from second and third input ports among the four input ports.

Abstract: A magnetic resonance imaging (MRI) device includes at least one switching cell that uses a first switcher to switch paths for two of four radio frequency (RF) signals is used to output the two RF signals. The MRI device includes RF coils including a plurality of coils for receiving RF signals from an object to which magnetic fields are applied; an image processor for creating a magnetic resonance image based on the received RF signals; and a switching unit for switching connections between a plurality of input ports connectable to the plurality of coils and a plurality of output ports connectable to the image processor, wherein the switching unit includes at least one switching cell including four input ports, two output ports connected to two of the four input ports, and a first switcher for switching between paths extended from second and third input ports among the four input ports.

Abstract: An imaging apparatus and a method of controlling the same are disclosed. The imaging apparatus control method includes generating a pulse signal to an imaging unit, the imaging unit imaging an object to acquire an image signal of the object, generating an antiphase pulse signal based on the generated pulse signal, the antiphase pulse signal having an opposite phase to that of the pulse signal, and controlling a wireless communication unit based on the antiphase pulse signal, the wireless communication unit transmitting the image signal using a wireless communication network.

Abstract: An imaging apparatus and a method of controlling the same are disclosed. The imaging apparatus control method includes generating a pulse signal to an imaging unit, the imaging unit imaging an object to acquire an image signal of the object, generating an antiphase pulse signal based on the generated pulse signal, the antiphase pulse signal having an opposite phase to that of the pulse signal, and controlling a wireless communication unit based on the antiphase pulse signal, the wireless communication unit transmitting the image signal using a wireless communication network.

Abstract: An end-fed planar type spiral antenna for transmitting/receiving radio signals includes a spiral pattern formed to have inner and outer spiral curves turned predetermined times in a spiral shape from an arbitrary center point in a plane; a central circle pattern formed in a part of a central region of the spiral pattern in a circular shape; and a feed arm pattern formed in a rectangular shape from an end of the spiral pattern that turns predetermined times. Conductive material is patterned on a pattern where the spiral pattern, the central circle pattern and the feed arm pattern are overlapped. This antenna allows to design an antenna structure capable of effectively enhancing radiation efficiency and improving broadband characteristics by utilizing a tapered spiral structure. Also, this antenna has an improved orientation, ensures less limitation in height, and allows a small-size design.