摘要:
A re-reconfigurable built-in antenna of a portable terminal is provided. The antenna includes an antenna radiator having a feeding pad electrically connected to a feeding portion of a main board of the terminal and at least one ground pad disposed in a position different from that of the feeding pad for selectively establishing an electrical connection to a ground portion of the terminal, and a switching element, commonly connected to the at least one ground pad of the antenna radiator, for selectively establishing an electrical connection to the ground portion by a switching operation. The antenna radiator changes a shape of the antenna radiator by using the selective electrical connection of the ground portion so as to have various operational frequency bands and radiation properties.
摘要:
An antenna apparatus for a portable terminal having a main board is provided. The antenna apparatus includes a main antenna that electrically connects to a feed line of the main board. A metal frame is constructed as part of a case frame forming an exterior of the portable terminal. The metal frame is divided into first and second parts that are separated. The first part electrically connects to the main antenna or to the main board feed line, and is designed to radiate. The second part electrically connects to a ground surface of the main board. The metal frame enhances overall antenna performance rather than causing degradation through interference.
摘要:
Disclosed is an interior structure of an automobile in which the dashboard is not substantially installed before the front passenger seat and after the partition separating the engine room from the interior room of the automobile to obtain a sufficient space for the front passenger to stretch out her or his legs horizontally and completely; therefore a leg rest is installed in the obtained space. The automobile interior structure in accordance with the present invention make the front passenger unfold the leg rest continuously to the front passenger seat when she or he takes a rest and therefore make the front passenger stretch out her or his legs horizontally and completely to take a more comfortable rest.
摘要:
An apparatus and method for antenna matching according to a position and an angle of a portable terminal is provided. Operations of the portable terminal include, when at least one of a position and an angle of the portable terminal is changed, determining an optimal Tunable Matching Network (TMN) set value corresponding to the position and the angle, and performing antenna matching according to the optimal TMN set value.
摘要:
Exemplary embodiments of the present invention disclose a file transmission management system and a file transmission management method for supporting a file transmission in a mobile messaging service. The file transmission management system may include a file transmission manager to receive a file from an Internet storage space associated with a user when the user requests a transmission of the file stored in the Internet storage space.
摘要:
An embedded antenna apparatus of a communication terminal is provided. The antenna apparatus includes a plate board having a feeding pad disposed on a side of the board; a device carrier mounted on a side of the board to expose the feeding pad; a radiation device including at least two radiation lines extending from the feeding pad to a surface of the device carrier along different paths, the at least two radiation lines radiating at a preset frequency band when electric power is fed through the feeding pad; and a ground plate having a flat plate shape mounted in an edge of the side of the board and disposed perpendicular to the side of the board, and contacting one end each of the at least two radiation lines to ground the radiation device.
摘要:
A multi-band built-in antenna of a portable terminal is provided. The antenna includes a first antenna radiator on a front surface of a substrate (e.g., a main board), and a second antenna radiator on an opposite surface of the substrate. The substrate has ground surfaces on both sides separated from a non-ground area on which the radiators are disposed. The first radiator may be in the form of a Planar Inverted F Antenna (PIFA), with a first end branched off into two parts, one part used for power feeding and the other part electrically coupled to the ground surface. The first radiator has a portion that extends from the first end to an opposite end. The second radiator is continuous from the opposite end of the first radiator through a via (hole) in the main board.
摘要:
An antenna device for improving antenna performance of a portable terminal having a metal edge installed on a case frame is disclosed. The antenna device includes a main board equipped with a power supply end for supplying power and a ground surface for grounding the main board, a loop radiator connected with the power supply end of the main board at first end and connected with the ground surface of the main board at a second end, and a metal body disposed along an edge of the portable terminal and electrically connected with the ground surface of the main board.
摘要:
A method for fabricating an antenna device of a mobile communication terminal, the method including selecting radiation patterns according to a usable frequency band, selecting and fabricating magneto dielectric modules for adjusting resonance frequencies of the selected radiation patterns, selecting and fabricating dielectric modules for adjusting resonance frequency of the selected radiation patterns, selecting and fabricating a radiation pattern having a number of resonance frequencies required for the terminal from among the radiation patterns selected in the pattern selection step, and selecting at least one of the magneto dielectric modules and the dielectric modules and installing it in the radiation pattern to tune a resonance frequency of the radiation pattern to the resonance frequency required for the terminal.
摘要:
An antenna apparatus allows for internal impedance matching by employing an internal matching device therein. The antenna apparatus includes a board body formed of a dielectric material and having a flat structure. The antenna apparatus also includes an antenna device disposed on an upper surface of the board body, and the internal matching device disposed on a lower surface of the board body. The antenna device extends from a feed point and has a first impedance. The internal matching device is connected to the antenna device and has a second impedance used for matching the first impedance with a reference impedance. The antenna device and the internal matching device resonate at the reference impedance in a specific frequency band when a voltage is supplied through the feed point.