KR101701843B1 - Dongle - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a dongle, and more particularly, to a dongle capable of reducing and blocking noise introduced from a terminal when connected to a terminal such as a notebook computer.

Description

Dongle {Dongle}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dongle capable of reducing and blocking noise introduced from a terminal when connected to a terminal such as a notebook computer.

The terminal can move And may be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. Recently, as the importance of social network through Twitter and mail has increased, the use of wireless Internet is increasing.

A dongle, on the other hand, is a small piece of hardware that connects to a computer and can be carried with a USB flash drive. Initially used for computer software authentication purposes, the dongle is now widely used to refer to broadband wireless adapters.

Because of the characteristics of handsets that tend to be smaller and slimmer, the installation space of the antennas is inevitably reduced, and the importance of dongles for wireless communication is increasing.

The present invention provides a dongle capable of reducing and blocking noise introduced from the terminal when connected to a terminal such as a notebook computer.

It is another object of the present invention to provide a dongle capable of reducing and blocking noise introduced through a signal path and a case constituting a terminal for connection with a terminal.

It is another object of the present invention to provide a dongle capable of blocking noise introduced through a signal path portion, preventing malfunction, blocking noise introduced through a case, and improving antenna performance .

According to an aspect of the present invention, there is provided a dongle comprising: a body including an antenna and a substrate electrically connected to the antenna; A terminal electrically connected to the substrate and electrically connected to the terminal; And at least one inductor provided on the substrate to reduce noise introduced from the terminal to the substrate through the terminal.

The terminal may further include: a signal path unit for transmitting a signal transmitted from the terminal to the substrate; And a case inserted into the terminal and surrounding the signal path portion.

The inductor further includes: a first inductor for reducing noise introduced from the terminal to the substrate through the case; And a second inductor for reducing noise introduced into the substrate through the signal path unit from the terminal.

The substrate may be divided into a first region where the case is grounded, a second region where the signal path portion is grounded, and a third region where one or more devices are mounted, and the first inductor is divided into a first region and a second region And the second inductor may be disposed at a boundary portion between the second region and the third region.

The first region and the second region may be separately partitioned to be electrically connected through the first inductor, and the second region and the third region may be separately partitioned to be electrically connected through the second inductor.

In addition, the first inductor may have an inductance of 250 nH to 300 nH.

Also, the second inductor may have an inductance of 45 nH to 50 nH.

A dongle according to another embodiment of the present invention includes a substrate, a first antenna that receives a feed signal from the substrate, and a second antenna that is electrically connected to the substrate and includes a terminal exposed to the outside for electrical connection with the terminal, body; And a second body including a second antenna that is rotatably or slidably mounted on the first body for selectively exposing the terminal and receives a feed signal from the substrate, At least one inductor for reducing noise introduced into the substrate is provided.

The terminal may further include: a signal path unit for transmitting a signal transmitted from the terminal to the substrate; And a case inserted into the terminal and surrounding the signal path portion.

The inductor further includes: a first inductor for reducing noise introduced from the terminal to the substrate through the case; And a second inductor for reducing noise introduced into the substrate through the signal path unit from the terminal.

The substrate may be divided into a first region where the case is grounded, a second region where the signal path portion is grounded, and a third region where one or more devices are mounted, and the first inductor is divided into a first region and a second region And the second inductor may be disposed at a boundary portion between the second region and the third region.

The first region and the second region may be separately partitioned to be electrically connected through the first inductor, and the second region and the third region may be separately partitioned to be electrically connected through the second inductor.

In addition, the first inductor may have an inductance of 250 nH to 300 nH.

Also, the second inductor may have an inductance of 45 nH to 50 nH.

In addition, the second antenna may include: a feeder for receiving a feed signal from the substrate; A first radiation part having a first conductive pattern electrically connected to the feeding part; A second radiation part electrically connected to the feeding part and having resonance characteristics maintained in a lower frequency band than the first radiation part; And a ground unit electrically connected to the power feed unit.

The dongle may further include an RF cable connecting the feeder of the second antenna to the substrate.

The second radiating part may include a dielectric chip electrically connected to the feeding part and a second conductive pattern electrically connected to the dielectric chip.

Also, the second radiation part may be mainly irradiated through the second conductive pattern.

According to the dongle according to at least one embodiment of the present invention configured as described above, it is possible to reduce and block the noise introduced from the terminal when connected to a terminal such as a notebook computer.

Further, according to the dongle relating to at least one embodiment of the present invention, the noise that flows through the case and the signal path portion constituting the terminal for connection with the terminal can be reduced and blocked, respectively.

In addition, noise introduced through the signal path portion is blocked, malfunction can be prevented, noise introduced through the case is blocked, and antenna performance can be improved.

1 is a perspective view of a dongle according to an embodiment of the present invention;
2 is a conceptual diagram for explaining a working state of a dongle related to the present invention;
FIGS. 3 and 4 are perspective views of a dongle according to an embodiment of the present invention;
5 is a conceptual diagram for explaining a grounding structure of a dongle according to the present invention;
6 is a perspective view showing an internal structural member of a dongle according to an embodiment of the present invention;
7 is a perspective view showing an antenna constituting a dongle related to the present invention;
8 is a circuit diagram of the antenna shown in Fig.

Hereinafter, a dongle according to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

FIG. 1 is a perspective view of a dongle according to an embodiment of the present invention, FIG. 2 is a conceptual view for explaining an operating state of a dongle related to the present invention, and FIGS. Fig. 5 is a conceptual diagram for explaining the grounding structure of the dongle related to the present invention. Fig.

As described above, the dongle used in this document represents a broadband wireless adapter.

On the other hand, due to the characteristics of the dongle, which is in a trend of miniaturization and slimness, the installation space of the antenna is inevitably reduced in order to improve the portability, and accordingly, the installation space of the antenna is also reduced. However, as the size of the antenna increases, the performance improves. Therefore, it is required to develop an antenna having a high performance while occupying a small space.

In order to solve such a problem, a dongle including a multiple input multiple output (MIMO) scheme or a diversity scheme antenna is proposed.

The diversity scheme is a method of combining outputs of two or more types of antennas and receivers when receiving a signal propagation, and a method of using an external antenna separately from an antenna built in the terminal.

In the MIMO scheme, the number of antennas of a base station and a mobile terminal is increased to two or more to transmit data in a plurality of paths, a receiver detects a signal received through each path to reduce interference, It is regarded as one of the core technologies of 4G which is mobile communication technology.

Hereinafter, a dongle 100 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. For convenience, the terminal will be described as an example of a notebook (N), and an antenna is a normal antenna and a micom antenna.

The present invention includes two embodiments depending on the type of antenna incorporated in the dongle. The first embodiment relates to a dongle in which an ordinary antenna is incorporated, and the second embodiment relates to a dongle in which a micom antenna is incorporated.

In each embodiment, only the antenna method is different, and the structure for reducing and blocking the noise introduced into the terminal N is the same while connected to the terminal. 1 to 9 show a dongle having a built-in micom antenna, and these embodiments will be described with reference to the drawings.

The dongle 100 according to the first embodiment of the present invention includes a main body 110 including an antenna 111 and a board 112 electrically connected to the antenna 111 and a board 110 electrically connected to the board 112 A terminal 130 for electrical connection with a terminal N and a board 112 for reducing noise introduced into the substrate 112 from the terminal N through a terminal 130. [ And at least one inductor 140,

The antenna 111 may be formed of an antenna carrier (not shown), which is injected with resin, and an antenna (not shown) (Not shown) disposed on the antenna carrier, and one end of the conductive pattern may have one or more feeders and a grounding portion. The feeder and the grounding portion may be formed on the substrate 112 Respectively.

The terminal 130 includes a signal path P1 for transmitting a signal transmitted from the terminal N to a substrate and a case inserted into the terminal N and surrounding the signal path P1 P2).

Meanwhile, when the dongle 100 for wireless communication is inserted into the notebook computer N, a noise component is introduced from the notebook computer N and is transmitted from the low band (LTE 700 MHz, GSM 850, GSM 900, WCDMA 850 band) A performance degradation of about 10 dB occurs.

A path through which the noise is introduced into the dongle 100 through the notebook N is a path through which the signal path P1 of the terminal 130 and a noise component traveling around the notebook N are connected to the metal For example, a case P 2 made of stainless steel.

The inductor includes a first inductor 140 for reducing noise introduced from the terminal N to the substrate 112 through the case P2 and a second inductor 140 for reducing the noise from the signal path P1 And a second inductor 150 for reducing noise introduced into the substrate 112 through the second inductor 150.

4, the substrate 11 includes a first region 112a in which the case P2 is grounded, a second region 112b in which the signal path portion P1 is grounded, and at least one element And a third region 112c in which a plurality of pixels are mounted. On the other hand, the case P2 can be grounded on both sides of the termination portion of the substrate.

 The first inductor 140 is disposed at a boundary between the first region 112a and the second region 112b and the second inductor 150 is disposed at a boundary between the second region 112b and the third region 113c. As shown in FIG.

At this time, the first region 112a and the second region 112b of the substrate 112 are separated to be electrically connected through the first inductor 140, and the second region 112b and the third region 112b 113c may be separated from each other to be electrically connected through the second inductor 150. That is, the adjacent regions are electrically connected only through the inductors 140 and 150 provided at the boundary portion, and each region can be insulated by various methods (mechanical method, electrical method).

The noise component flowing along the signal path P1 is not transmitted to the third region 112c of the substrate 112 and the noise component flowing along the case P2 is transmitted to the second region 112c of the substrate 112. [ So that malfunction of the dongle 100 can be prevented and performance of the antenna 111 can be ensured.

Here, the first inductor 140 may have an inductance of 250 nH to 300 nH, and the first inductor 140 may have an inductance of about 270 nH.

In addition, the second inductor 150 may have an inductance of 45 nH to 50 nH, and preferably the second inductor 150 may have an inductance of about 47 nH.

Therefore, by separating the ground of the signal path portion P1 of the terminal 130 and the ground of the case P2 from the ground of the substrate 112 and connecting them to the inductors 140 and 150 respectively, (About TIS -10 dBm is secured).

FIG. 6 is a perspective view showing an inner structural member of a dongle according to an embodiment of the present invention, FIG. 7 is a perspective view showing an antenna constituting a dongle related to the present invention, and FIG. 8 is a circuit diagram of the antenna shown in FIG. 7 .

The dongle 100 according to the second embodiment of the present invention includes a micom antenna as described above and includes a first antenna 111 and a second antenna 120 provided on the first body 110, And a second antenna 1 provided on the second antenna 1.

The substrate may include a main substrate 112 connected to the first antenna 111 and a sub substrate 113 connected to the second antenna 1. The first antenna 111 may be connected to the main substrate 112, The first antenna 111 is connected to the main board 112 and the second antenna 1 is connected to the sub board 113. In this case, Fig.

The dongle 100 according to the second embodiment of the present invention includes a first body 110 having a terminal 130 and a first body 110 for selectively exposing the terminal 130, And a second body 120 mounted thereon.

The first body 110 includes a substrate 112 (e.g., a main substrate 112), a first antenna 110 receiving a feed signal from the substrate 112, and a second antenna 110 electrically connected to the substrate 112 And a terminal 130 exposed to the outside for electrical connection with the terminal N. [

The second body 120 is rotatably or slidably mounted on the first body 110 to selectively expose the terminal 130 and transmits a feed signal from the substrate (for example, the sub-substrate 113) And a receiving second antenna 1.

One or more inductors 140 and 150 are provided on the substrate (for example, the main substrate 112) to reduce noise introduced from the terminal N to the substrate through the terminal 130.

The dongle related to the second embodiment only differs from the dongle related to the first embodiment only in the antenna method, and the structure for reducing and blocking the noise from the terminal N is the same, so a detailed description will be omitted.

The terminal 130 includes a signal path portion P1 for transmitting a signal transmitted from the terminal N to the substrate 112 and a signal path portion P1 inserted into the terminal N and surrounding the signal path portion P1, And may include a case P2.

The inductor includes a first inductor 140 for reducing noise introduced from the terminal N to the substrate through the case P2 and a second inductor 140 for passing through the signal path P1 from the terminal N, And a second inductor 150 for reducing the noise introduced into the first and second inductors 112 and 112.

The substrate 112 has a first region 112a in which the case P2 is grounded, a second region 112b in which the signal path portion P1 is grounded, and a third region The first inductor 140 is disposed at a boundary between the first region 112a and the second region 112b and the second inductor 150 is divided into the second region 112b and the third region 112b. And may be disposed at the boundary of the region 112c.

The first region 112a and the second region 112b are separated from each other to be electrically connected only through the first inductor 140 and the second region 112b and the third region 113c are separated from each other by the second And can be separated so as to be electrically connected only through the inductor.

In addition, the first inductor 140 may have an inductance of 250 nH to 300 nH, and the second inductor 150 may have an inductance of 45 nH to 50 nH.

The first body 110 may be provided with a shield frame 114 between the main substrate 112 and the sub substrate 113.

The second antenna 1 includes a first radiation part 20 having a feeding part 10 for receiving a feeding signal and a first conductive pattern 21 electrically connected to the feeding part 10, A second radiation part 30 electrically connected to the front part 10 and having a resonance characteristic maintained in a lower frequency band than the first radiation part 20 and a ground part 40 electrically connected to the feeding part 10, ).

The second radiation part 30 may include a dielectric chip 31 electrically connected to the feed part 10 and a second conductive pattern 34 electrically connected to the dielectric chip 31. [ have.

The dielectric chip 31 has a conductor 33 patterned on the dielectric block 32 and the conductor 33 can be wound around the dielectric block 32 in a helical manner. The winding of the conductor may be formed by winding a low temperature co-fired ceramic (LTCC) or a coil, or by winding a conductor strip having a constant width around the dielectric block.

In addition, the winding of the conductor may be implemented in a pattern such as a meander line, a patch shape, or an array shape in addition to the printing or masking pattern on the dielectric block.

Since the dielectric chip 31 has a high permittivity and moves the resonance band downward, the physical length required for the operation of the antenna can be reduced and the volume of the entire antenna can be reduced.

The second conductive pattern 34 may be connected to the dielectric chip so that the second radiation 30 is electrically connected to the second conductive pattern 34 via the second conductive pattern 34. [ It is preferable that the main radiation is performed.

That is, the dielectric chip 31 having the permittivity and the permeability effectively reduces the electrical length of the antenna 1. It is possible to reduce the electrical length of the antenna through the dielectric chip 31 as much as possible, thereby facilitating the miniaturization and making the main radiation through the second conductive pattern 34 to increase the radio reception sensitivity.

The first radiation part 20 and the second radiation part 30 preferably have different operating frequencies and the first radiation part 20 composed of the first conductive pattern 21 has resonance characteristics And the second radiation part 30 composed of the dielectric chip 31 can maintain resonance characteristics in a frequency band lower than that of the first radiation part 20. For example, Can be maintained.

The length of the second conductive pattern 34 may be smaller than the length of the first conductive pattern 21.

The first conductive pattern 21 and the second conductive pattern 24 may be formed of a meander type or a spiral type and the meander type may have a large area to increase the space utilization. In spiral type, the inductance is large, but the current can not be canceled, so the radiation efficiency can be increased.

The feeder 10 may be provided with a connector for electrically connecting to the RF cable 12. The feeder 10 may be connected to the main body 10 of the controller 180 of the mobile terminal 100, And an RF cable 12 for receiving a feed signal from a circuit board (not shown).

Here, the RF cable 12 may function as a radiating part separate from the first radiating part and the second radiating part, and the length of the RF cable 12 may be adjusted to change the resonance characteristics.

Meanwhile, the power feeder 10 may be disposed inside the grounding part 40 in order to improve space utilization.

The second antenna 1 may further include a matching unit 50 that connects the feeding unit 10 and the first radiation unit 20. The matching unit 50 can acquire a high degree of isolation as an impedance matching unit and can eliminate adverse influences such as mutual interference or unnecessary signals.

The second antenna 1 has a first section 61 in which the feed section 10 and the ground section 40 are provided and a second section 61 in which the first and second radiation sections 20 and 30 are provided, The first and second sections 61 and 62 of the insulating member 60 may be separated from the first and second sections 61 and 62, May be formed in a flexible manner.

Therefore, the second antenna 1 can be disposed in the second body 120 in a state of being attached to an antenna carrier (not shown) or the like through an insulating member, and can secure high insulation characteristics with the first antenna 111 It is preferable that the insulating member 60 is disposed in the second body 120 such that the first region is perpendicular to the longitudinal direction of the connection terminal 130 in the open state of the second body 120.

Here, it is preferable that the first antenna 111 has a structure grounded to a ground provided on the substrate 112, and each antenna 111 and 1 has a separate ground, so that mutual interference can be minimized.

As described above, the dongle 100 according to the second embodiment of the present invention can increase the space utilization by minimizing the electrical length of the second antenna 1, and increase the reception sensitivity in various frequency bands .

According to the dongle according to at least one embodiment of the present invention configured as described above, it is possible to reduce and block noise introduced from the terminal when connected to a terminal such as a notebook computer.

Further, according to the dongle relating to at least one embodiment of the present invention, the noise that flows through the case and the signal path portion constituting the terminal for connection with the terminal can be reduced and blocked, respectively.

In addition, noise introduced through the signal path portion is blocked, malfunction can be prevented, noise introduced through the case is blocked, and antenna performance can be improved.

The above-described dongle is not limited to the configuration and method of the above-described embodiments, but the embodiments may be configured such that all or some of the embodiments are selectively combined so that various modifications can be made. have.

100: dongle 110: first body
120: second body 130: terminal
N: terminal

Claims (18)

A body including an antenna and a substrate electrically connected to the antenna;
A terminal electrically connected to the substrate and electrically connected to the terminal;
A signal path unit provided at the terminal for transmitting a signal transmitted from the terminal to a substrate;
A case inserted into the terminal and enclosing the signal path portion; And
And at least one inductor provided on the substrate to reduce noise introduced from the terminal into the substrate through the terminal,
Wherein the substrate is divided into a first region where the case is grounded, a second region where the signal path portion is grounded, and a third region where one or more elements are mounted,
The inductor includes:
A first inductor disposed at a boundary between the first region and the second region to reduce noise introduced from the terminal to the substrate through the case; And
And a second inductor disposed at a boundary portion between the second region and the third region to reduce noise introduced into the substrate through the signal path portion from the terminal,
Wherein the first region and the second region are separately partitioned to be electrically connected through the first inductor, and the second region and the third region are separately partitioned to be electrically connected through the second inductor. delete delete delete delete The method according to claim 1,
Wherein the first inductor has an inductance of 250 nH to 300 nH. The method according to claim 1,
And the second inductor has an inductance of 45 nH to 50 nH. A first antenna receiving a feed signal from the substrate; a first body electrically connected to the substrate, the first body including a terminal exposed to the outside for electrical connection with the terminal;
A second body including a second antenna that is rotatably or slidably mounted to the first body for selectively exposing the terminal and receives a feed signal from the substrate;
A signal path unit provided at the terminal for transmitting a signal transmitted from the terminal to a substrate; And
And a case inserted into the terminal and enclosing the signal path portion,
Wherein the substrate is provided with one or more inductors for reducing noise introduced into the substrate through the terminals from the terminal,
Wherein the substrate is divided into a first region where the case is grounded, a second region where the signal path portion is grounded, and a third region where one or more elements are mounted,
The inductor includes:
A first inductor disposed at a boundary between the first region and the second region to reduce noise introduced from the terminal to the substrate through the case; And
And a second inductor disposed at a boundary portion between the second region and the third region to reduce noise introduced into the substrate through the signal path portion from the terminal,
Wherein the first region and the second region are separately partitioned to be electrically connected through the first inductor, and the second region and the third region are separately partitioned to be electrically connected through the second inductor. delete delete delete delete 9. The method of claim 8,
Wherein the first inductor has an inductance of 250 nH to 300 nH. 9. The method of claim 8,
And the second inductor has an inductance of 45 nH to 50 nH. 9. The antenna of claim 8,
A feeder for receiving a feed signal from the substrate;
A first radiation part having a first conductive pattern electrically connected to the feeding part;
A second radiation part electrically connected to the feeding part and having resonance characteristics maintained in a lower frequency band than the first radiation part; And
And a grounding portion electrically connected to the power feeding portion. 9. The method of claim 8,
Further comprising an RF cable connecting the feeder of the second antenna to the substrate. 16. The method of claim 15,
Wherein the second radiating part includes a dielectric chip electrically connected to the feeding part and a second conductive pattern electrically connected to the dielectric chip. 18. The method of claim 17,
Wherein the second radiating portion is mainly irradiated through the second conductive pattern.

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