Mobile terminal and method of operating antenna thereof
AssigneeSamsung Electronics Co., Ltd.
InventorSung In Seo
Life of this patent
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Abstract
A mobile terminal and a method of operating an antenna thereof are provided. The mobile terminal includes a plurality of antennas. A resonance frequency moving unit moves a resonance frequency of at least one of the plurality of antennas. And a controller controls the resonance frequency moving unit to sustain or move a resonance frequency of the at least one antenna according to use of a plurality of antennas. Therefore, by minimizing mutual interference occurring between a plurality of antennas using a similar frequency band, a wireless communication performance can be improved.
Claims16
A mobile terminal comprising:
- a plurality of antennas;
- a main ground;
- at least one sub-ground separate from the main ground and positioned adjacent to a corresponding antenna among the plurality of antennas;
- at least one switch configured to switch a connection of the main ground and the at least one sub-ground;
- and
- a controller configured to sustain or move a resonance frequency of the corresponding antenna by controlling switching of the connection of the main ground and the at least one sub-ground,
- wherein the plurality of antennas comprise:
- a first antenna disposed at one side of a printed circuit board (PCB) including at least one electronic component and the main ground, the first antenna being a main antenna configured to transmit and receive a wireless signal,
- a second antenna disposed at another side of the PCB, the second antenna being a sub-antenna configured to receive a wireless signal transmitted from a base station, and
- a third antenna configured to receive a digital broadcasting signal;
- and
- wherein:
- the first antenna and the second antenna are formed as a diversity antenna for mobile communication,
- at least one second sub-ground is positioned adjacent to the third antenna and separate from the main ground and the at least one sub-ground, and
- at least one second switch is configured to switch a connection of the main ground and the at least one second sub-ground according to a control signal of the controller.
A method of operating an antenna of a mobile terminal comprising a plurality of antennas, the method comprising:
- communicating through at least one first antenna of the plurality of antennas, the at least one first antenna disposed at one side of a printed circuit board (PCB) including at least one electronic component and a main ground, the at least one first antenna being a main antenna configured to transmit and receive a wireless signal;
- determining whether use of at least one second antenna of the plurality of antennas is requested, the at least one second antenna disposed at another side of the PCB, the at least one second antenna being a sub-antenna configured to receive a wireless signal transmitted from a base station;
- moving or sustaining a resonance frequency of the at least one second antenna by controlling a first switch to switch a connection of a main ground and a first sub-ground based on the determination, the first sub-ground being separated from the main ground and positioned adjacent to the at least one second antenna;
- and
- switching a connection of the main ground and a second sub-ground according to a control signal using a second switch, the second sub-ground being positioned adjacent to a third antenna for receiving a digital broadcasting signal and separate from the main ground and the first sub-ground,
- wherein the at least one first antenna and the at least one second antenna are formed as a diversity antenna for mobile communication.
Dependencies are inferred from the claim text.