Abstract:
An antenna device included in a radio apparatus having a printed board includes a ground conductor provided in the printed board, a first sub-element, a second sub-element and a short circuit element. The first sub-element is formed as an area having a first side and a second side crossing each other. The first side faces a side of the ground conductor. The first sub-element has a feed portion around a crossing of the first side and the second side. The second sub-element is formed to branch off from the first sub-element around an end of the second side being farther from the crossing, to be open-ended and to be directed at least partially in a direction opposite a direction from the crossing to an end of the first side opposite the crossing. The short circuit element short-circuits one of the first sub-element and the second sub-element with the ground conductor.
Abstract:
An antenna device usable in a radio apparatus including a printed board includes a ground conductor of the printed board, a first partial element, a second partial element and a parasitic element. The first partial element is shaped into an area having a first side facing a side of the ground conductor and a second side directed to cross the side of the ground conductor, and is provided with a feed portion around a first end of the first side being closer to the second side. The second partial element branches off from the first partial element around one of two ends of the second side being farther from the feed portion, and is directed almost against a direction from the feed portion to a second end of the first side being farther from the second side. The parasitic element has an end grounded around the second end.
Abstract:
According to one embodiment, an information processing apparatus includes an antenna, a wireless communication module and a switch circuit. The wireless communication module is configured to wirelessly communicate using the antenna. The wireless communication module includes a terminal to output a status indicating a state of a wireless communication. The switch circuit is configured to switch resonant frequency bands of the antenna based on the status signal.
Abstract:
An antenna device usable in a radio apparatus having a printed board includes a ground conductor provided in the printed board, a fed partial element, a first branch element and a second branch element. The fed partial element is shaped as an area including a feed portion near an end of a first side of the area facing a side of the ground conductor, and a first branch portion and a second branch portion each near a portion of a fringe of the area other than the first side. The fed partial element may be fed at the feed portion. The first branch element branches off from the first branch portion and is folded back in a direction approaching the feed portion. The second branch element branches off from the second branch portion and is shaped in a direction close to the direction of the first branch element.
Abstract:
An electrical circuit material including a substrate and a bend section is provided. The substrate is formed to be planar. The substrate has a first face and a second face being back to back each other. The first face is provided with a first conductive pattern. The bend section is formed by a planar flexible material being bent or rounded and having a third face and a fourth face being back to back each other. The third face is provided with a second conductive pattern. The bend section is arranged with the substrate in such a way that a portion of the third face being in contact with the first face of the substrate and that the second conductive pattern is connected to the first conductive pattern.
Abstract:
According to an aspect of the invention, a portable terminal includes: a first audio input-output unit and a second audio input-output unit configured to receive audio or when a mode is set as an input mode and output audio when the mode is set as an output mode; and a setting unit configured to set the respective modes of the first audio input-output unit and the second audio input-output unit.
Abstract:
According to one embodiment, an electronic apparatus includes a housing in which an electrically conductive layer is formed on an inner surface of the housing, a flat-panel display which is accommodated in the housing, a first antenna which is disposed on the conductive layer, a part of the first antenna being located more on an outer peripheral side than a side of the conductive layer, and a second antenna which is disposed on the conductive layer, a part of the second antenna being located more on the outer peripheral side than the side of the conductive layer. The conductive layer includes a notch which is formed in a predetermined position of a side of the conductive layer, which is located between the first antenna and the second antenna, the notch having a length of ¼ of a wavelength corresponding to a resonance frequency of the first antenna.
Abstract:
Information equipment according to an embodiment includes a display housing with a display unit, a first radio communication antenna disposed at an end part of the display housing, a second radio communication antenna using a frequency band adjacent to or overlapped with that of the first radio communication antenna, and a third radio communication antenna disposed at an end part between the first and the second radio communication antennas, and uses a frequency band not adjacent to nor overlapped with those of the first and the second radio communication antennas.
Abstract:
A planar antenna includes first and second radiation elements. A first partial periphery of the first radiation element and a second partial periphery of the second radiation element face each other at a uniform gap equal to or less than a tenth of the length of the first partial periphery. The first radiation element includes a third partial periphery parallel to a straight line for connecting the both ends of the first partial periphery, a feeding point at a central portion of the first partial periphery, and a slit having an opened end and a closed end. A distance from the feeding point to the opened end along the slit through the closed end is longer than a sum of a half of the first partial periphery and a longer one of the other two partial peripheries.
Abstract:
An electronic device includes a display section and an antenna. The antenna is provided on the back of a display panel within a housing of the display section. The housing of the display section has an opening to surround an area for mounting the antenna. Even with the antenna disposed within the housing of the display section, antenna performance is improved. The electronic device has a reduced size and a higher package density, as well as reliable communications with constant stability.