Patent application number | Description | Published |
20100156748 | ANTENNA APPARATUS FOR INTERNAL IMPEDANCE MATCHING - 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. | 06-24-2010 |
20100265152 | MULTI-BAND ANTENNA APPARATUS - A multi-band antenna apparatus using a multiple frequency band is provided. The apparatus includes a substrate body formed in a flat plate structure having a preset thickness and in which at least one dielectric plate is stacked, a power supply line, disposed at the substrate body and connected to an external power source, for forming an electromagnetic field when power is supplied from the external power source, a radiation line, separated from the power supply line using the dielectric plate as the boundary in the substrate body, for forming an overlapping area overlapped with the power supply line along one axis through at least a portion, and for resonating in a frequency band determined according to the overlapping area when the electromagnetic field is formed, and a ground plate disposed in at least one an upper ground area and a lower ground area of the substrate body, for grounding the radiation line by contacting with the radiation line. | 10-21-2010 |
20110187608 | BUILT-IN ANTENNA FOR PORTABLE TERMINAL - A built-in antenna for a portable terminal is provided. The built-in antenna includes a substrate including a ground region and a non-ground region, an antenna radiator formed in a pattern with a preset shape within the non-ground region of the substrate, at least one sub-radiation pattern formed in a pattern type while including a preset spacing distance from the antenna radiator, and a conductive plate with a preset height, electrically connecting the sub-radiation pattern to the antenna radiator and/or the sub-radiation pattern. | 08-04-2011 |
20110267245 | MULTIPLE-INPUT MULTIPLE-OUTPUT ANTENNA SYSTEM - A Multiple-Input Multiple-Output (MIMO) antenna system with multiple antennas is provided. The MIMO antenna system includes a number of conductive elements, and a number of band stop devices. The conductive elements are spaced apart from each other and operate in corresponding resonant frequency bands respectively when they receive electric power. When the conductive elements are operated, the band stop devices block interference between the conductive elements in the resonant frequency bands, and isolate the conductive elements from each other. The band stop devices are located between adjacently separate conductive elements and connect the conductive elements to each other. The MIMO antenna system can stop interference between the conductive elements via the band stop devices, thereby increasing the operational efficiency of the conductive elements. | 11-03-2011 |
20120169546 | MULTI-BAND ANTENNA AND APPARATUS AND METHOD FOR ADJUSTING OPERATING FREQUENCY OF THE MULTI-BAND ANTENNA IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and method for adjusting an operating frequency of a multi-band antenna and a system supporting the same in a wireless communication system are provided, in which a plurality of shorting pins spaced from a radiation patch by difference distances, and a switch connects one of the shorting pins to the radiation patch. | 07-05-2012 |
20130082888 | METHOD FOR FABRICATING ANTENNA DEVICE OF MOBILE COMMUNICATION TERMINAL - An antenna device of a mobile communication terminal is provided, the device including at least one radiation pattern and at least one magneto dielectric module or dielectric module installed in a selected position on the radiation pattern to tune one or more resonance frequencies of the radiation pattern according to resonance frequencies required for the terminal The radiation pattern is selected from among one or more radiation patterns fabricated according to a usable frequency band. The one or more radiation patterns each include one or more resonance frequencies. The magneto dielectric module is selected from among one or more magneto dielectric modules fabricated for controlling the one or more resonance frequencies of the one or more radiation patterns. The dielectric module is selected from among one or more dielectric modules fabricated for controlling the one or more resonance frequencies of the one or more radiation patterns. | 04-04-2013 |
20140132460 | ANTENNA APPARATUS FOR PORTABLE TERMINAL - A portable terminal is provided. The portable terminal includes a main housing, a sub housing, a mainboard, and an electric connector. The main housing has a first antenna radiator. The sub housing is separable from the main housing and has a second antenna radiator. The mainboard is disposed in the main housing and processes a radio signal. The electric connector is disposed in the main housing. When the sub housing and the main housing are separated from each other, the electric connector electrically connects the mainboard with the first antenna radiator of the main housing. When the sub housing and the main housing are coupled, the electric connector electrically connects the mainboard with the second antenna radiator of the sub housing. | 05-15-2014 |
20140210675 | ANTENNA DEVICE FOR PORTABLE TERMINAL - An antenna device of a portable terminal including conductive components is provided. The antenna device includes a first radiator connected to a power feeding unit of the portable terminal and a second radiator connected to each of the power feeding unit and a ground part of the portable terminal. At least one of the conductive components is connected to at least one the first radiator and the second radiator. The conductive components may be used as a radiator of the antenna device such that the antenna device may be easily installed within an inner space of a miniaturized and lightened portable terminal and the inner space of the portable terminal may be efficiently used. | 07-31-2014 |