Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
An antenna device for a portable terminal having a printed circuit board (PCB) is disclosed. The antenna device is comprised of first and second antenna elements. The first antenna element includes at least a portion of one or more metal members disposed within the portable terminal; is electrically connected with a ground surface of the PCB; and has a slot. The second antenna element, is disposed in proximity to the slot, spaced from and electromagnetically coupled to the first antenna element. The second antenna element receives RF power from the PCB and is configured to resonate at a frequency of the RF power.
Abstract:
An antenna device of a mobile terminal having improved performance by utilizing a metal object located in proximity to the antenna device as an antenna radiator is provided. The antenna device includes an antenna pattern connected to a feeder and a ground line, and a metal component positioned on the antenna pattern and including a metal that forms an antenna radiator.
Abstract:
An antenna device for a portable terminal having a printed circuit board (PCB) is disclosed. The antenna device is comprised of first and second antenna elements. The first antenna element includes at least a portion of one or more metal members disposed within the portable terminal; is electrically connected with a ground surface of the PCB; and has a slot. The second antenna element, is disposed in proximity to the slot, spaced from and electromagnetically coupled to the first antenna element. The second antenna element receives RF power from the PCB and is configured to resonate at a frequency of the RF power.
Abstract:
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.
Abstract:
A portable terminal includes an antenna device having a circuit board on a surface of which a conductive layer is formed, a slit that removes a portion of the conductive layer and extends in a direction, an auxiliary board positioned on the slit to face a surface of the circuit board, and a radiation pattern formed on the auxiliary board, in which the radiation pattern is disposed to partially enclose the slit. Even when the radiation pattern is disposed on the conductive layer, induced current generated around the slit can be controlled in the same direction as signal power, thereby preventing radiation performance from being degraded by an inverse current phenomenon in spite of disposition of the radiation pattern on the conductive layer.