KR101970596B1 - Electonic Device - Google Patents

Abstract

The present invention relates to an electronic apparatus, which comprises: a sending module sending a signal; a receiving module receiving the signal from the sending module; a transmission line transmitting the signal between the sending module and the receiving module; and an antenna radiating an electromagnetic wave to the outside. The receiving module is disposed on a side where the distance between the center of a radiation surface on which the electromagnetic wave is radiated and the receiving module is larger than the distance between the center of the radiation surface and the sending module.

Description

[0001] ELECTRONIC DEVICE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device, and more particularly to an electronic device in which a transmission line and an antenna are disposed together.

Today, with the development of information communication and semiconductor technology, various modules are installed in one information communication equipment. Particularly, since most of the information communication devices include an antenna for communicating with an external device, a transmission line and an antenna for signal transmission between modules are mounted together in one electronic device.

However, when the transmission line and the antenna are mounted together in one electronic device, there arises a problem that the reception sensitivity of the antenna is reduced or the waveform of the transmission electromagnetic wave is distorted due to the interference of the electromagnetic wave generated when the signal is transmitted in the transmission line.

An object of the present invention is to provide an electronic device in which a transmission line is disposed so as to minimize electromagnetic interference in an antenna.

The problems to be solved by the present invention are not limited to the above-mentioned problem (s), and another problem (s) not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an electronic device including: a transmission module for transmitting a signal; A receiving module for receiving a signal from the transmitting module; A transmission line through which a signal is transmitted between the transmission module and the reception module; And an antenna for radiating an electromagnetic wave to the outside, wherein the receiving module is disposed at a position farther from the center of the radiation surface on which the electromagnetic wave is radiated than a distance between the center of the radiation surface and the transmission module.

The transmission line includes: a first electrode; A first dielectric layer disposed on an upper surface of the first electrode; And a second electrode disposed on an upper surface of the dielectric layer, wherein the first electrode and the second electrode may extend in a first direction in which the signal is transmitted.

The second electrode may include a plurality of electrodes for transmitting a differential signal.

The antenna includes: a second dielectric layer; A radiation plane disposed on the first dielectric layer and including a radiation pattern for radiating electromagnetic waves; And a feed line for supplying power to the radiation pattern, and the feed line may extend in a third direction perpendicular to the first direction and the second direction in which the electromagnetic waves are radiated.

The antenna may be disposed on the same PCB as the transmission line.

In the electronic device according to an embodiment of the present invention, when the antenna module and the transmission line are disposed together, the receiving module is disposed on the side farther from the center of the radiation surface on which the electromagnetic wave is radiated, By disposing the module, the interference between the electromagnetic wave radiated from the antenna and the electromagnetic wave radiated from the transmission line is minimized.

In particular, when a microstrip transmission line including a ground electrode, a signal electrode, and a dielectric layer is used together with the antenna module, the problem of maximizing interference between electromagnetic waves can be solved.

1 shows a block diagram of an electronic device 100 according to one embodiment of the present invention.
Fig. 2 shows a radiation pattern of electromagnetic waves when the antenna module 110 is arranged as shown in Fig.
FIG. 3A is an example of an arrangement of modules included in the electronic device 100 according to an embodiment of the present invention.
FIG. 3B shows a radiation pattern of an electromagnetic wave when the antenna module 110 is arranged as shown in FIG. 3A.
4 is a view showing a structure of a transmission line 120 according to an embodiment of the present invention.
5 shows a block diagram of an electronic device 500 in accordance with an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

The terms first, second, A, B, etc. may be used to describe various elements, but the elements should not be limited by the terms. For example, without departing from the scope of the present invention, a first component may be termed a second component, and similarly, the term " second component " The second component may also be referred to as the first component. The term < RTI ID = 0.0 > and / or < / RTI > includes any combination of a plurality of related listed items or any of the plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 shows a block diagram of an electronic device 100 according to one embodiment of the present invention.

The electronic device 100 according to an embodiment of the present invention may include an antenna module 110 and a transmission line 120, a transmission module 131, and a reception module 132.

The antenna module 110 includes a radiation plane 111 and a feed line 112.

A radiation pattern of a specific pattern may be disposed on the radiation surface 111 to emit electromagnetic waves of a desired wavelength or frequency. For example, a radiation pattern in the form of a patch may be disposed on the radiation surface 111. [ The radiation surface 111 may be stacked on top of a dielectric layer (not shown), and electromagnetic waves are radiated through the radiation surface.

The feed line 112 may be embodied as a conductive material to supply power to the radiation pattern and may extend in a direction perpendicular to the direction in which the electromagnetic waves are emitted.

The transmitting module 131 and the receiving module 132 may be of any type for transmitting / receiving signals. For example, an LVDS (Low Voltage Differential Signaling) interface may be used. The LVDS interface is one of the typical high-speed differential signaling methods, and is often used in LCD interfaces.

A signal is transmitted from the transmission module 131 to the reception module 132 via the transmission line 120. [ A transmission module 131 is disposed on one side of the transmission line 120 and a reception module 132 is disposed on the other side. At this time, the receiving module 132 is disposed at a side farther from the center of the radiation surface 111 in one side or the other side of the transmission line 120, and the transmission module 131 (near the center of the radiation surface 111) .

Generally, since an electromagnetic wave is generated in the process of transmitting a signal from the transmission module 131 to the reception module 132, interference occurs in the electromagnetic wave radiated from the antenna module 110. This causes the reception characteristic of the antenna module 110 to be lowered or the waveform of the transmission electromagnetic wave to be deformed to deteriorate the characteristics of the antenna. Therefore, the positional relationship between the transmission module 131, the reception module 132, the transmission line 120, and the antenna module 110 is important. Hereinafter, an optimal positional relationship between the transmitting module 131, the receiving module 132, the transmission line 120, and the antenna module 110 will be described with reference to the antenna radiation patterns of FIGS.

FIG. 2B shows a radiation pattern of electromagnetic waves when the antenna module 110 is arranged as shown in FIG.

1, the feed line 112 extends in a horizontal direction with respect to the transmission line 120, that is, in the x-axis direction, and the antenna module 110 extends in a direction perpendicular to the antenna surface 111, that is, z Direction. Therefore, the extending direction of the transmission line 120 and the radiation direction of the electromagnetic wave are perpendicular to each other.

The transmitting module 131 is located closer to the center of the antenna surface 111 and the receiving module 132 is located farther from the center of the antenna surface 111.

The left side of FIG. 2 shows a state in which electromagnetic waves are radiated in the xy plane.

The center of Fig. 2 shows the state in which electromagnetic waves are radiated in the xz plane.

Figure 2 shows a 3D radiation pattern.

Referring to FIG. 2, it is confirmed that the electromagnetic wave generated in the transmission line 120 is radiated in the direction opposite to the antenna module 110.

FIG. 3A is an example of an arrangement of modules included in the electronic device 100 according to another embodiment of the present invention.

3A, the feed line 112 extends in a direction parallel to the transmission line 120, that is, in the x-axis direction, and the antenna module 110 has a direction perpendicular to the antenna surface 111, that is, z Direction. Therefore, the extending direction of the transmission line 120 and the radiation direction of the electromagnetic wave are perpendicular to each other.

The transmitting module 131 is located farther from the center of the antenna surface 111 and the receiving module 132 is located nearer to the center of the antenna surface 111.

FIG. 3B shows a radiation pattern of an electromagnetic wave when the antenna module 110 is arranged as shown in FIG. 3A.

The left side of FIG. 3 (b) shows how electromagnetic waves are radiated in the xy plane.

And the center of FIG. 3B shows a state in which electromagnetic waves are radiated in the xz plane.

3C shows a 3D radiation pattern.

Referring to FIG. 3, it can be seen that the electromagnetic wave generated in the transmission line 120 is radiated in the direction in which the antenna module 110 is located.

2 and 3, when the antenna module 110 and the transmission line 120 are disposed together in one electronic device 100, the transmission module 131 is disposed on the side of the antenna surface 111 It is confirmed that the interference between the electromagnetic wave radiated from the transmission line 120 and the electromagnetic wave radiated from the antenna module 110 is reduced if the receiving module 132 is disposed farther from the center of the antenna surface 111 .

Returning to FIG. 1, the transmission line 120 may be of any type for transmitting a signal from the transmitting module 131 to the receiving module 132. Hereinafter, the structure of the transmission line 120 according to an embodiment of the present invention will be described with reference to FIG.

4 is a view showing a structure of a transmission line 120 according to an embodiment of the present invention.

4A shows the structure of the microstrip-line transmission line 120. FIG.

4A, the microstrip-line transmission line 120 includes a first conductor 411 used as a ground line, a dielectric layer 412 disposed on an upper surface of the first conductor 411, and a second conductor 412 used as a signal line. And a conductor 413.

According to an embodiment, the differential signal may be transmitted through the second conductor 413, and in this case, the second conductor 413 may be arranged in a state where the plurality of conductive materials are spaced apart.

FIG. 4B shows the structure of the strip-line transmission line 120. FIG.

4B, the strip-line transmission line 120 includes a first conductor 421 used as a ground line, a dielectric layer 422 disposed on an upper surface of the first conductor 421, and a dielectric layer 423 disposed between the dielectric layer 423 A second conductor 423 used as a signal line, and a third conductor 424 disposed on an upper surface of the dielectric layer 422 and used as a ground line.

4C shows a structure of a coplanar waveguide (CPW) transmission line 120. In FIG.

4C, the CPW transmission line 120 includes a dielectric layer 431, a first conductor 432 and a third conductor 434 disposed on the upper surface of the dielectric layer 431 and used as a ground line, a dielectric layer 431, And a second conductor 432 disposed on the upper surface of the second conductor 431 and used as a signal line. At this time, the first conductor 432, the second conductor 433, and the third conductor 434 may be disposed on the same plane, and may be physically separated from each other.

As described above, the transmission line 120 according to an exemplary embodiment of the present invention may have any structure capable of transmitting a signal from the transmission module 131 to the reception module 132. However, The transmission line has a high utilization because the structure is easy to manufacture and the manufacturing cost is low. However, in the case of a transmission line having a microstrip structure, it is very important to reduce the noise coupling when used together with the antenna module, because it is highly likely to cause electromagnetic wave radiation in the process of transmitting signals through the transmission line.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and / or features of the present invention, and how to accomplish them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modification is possible. Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all equivalents or equivalent variations thereof are included in the scope of the present invention.

100: Electronic device
110: Antenna module
111:
112: feed line
120: transmission line
131: Transmission module
132: receiving module

Claims (5)

A transmitting module for transmitting a signal;
A receiving module for receiving a signal from the transmitting module;
A transmission line through which a signal is transmitted between the transmission module and the reception module; And
And an antenna for radiating an electromagnetic wave to the outside,
The transmission line includes: a first electrode;
A first dielectric layer disposed on an upper surface of the first electrode; And
And a second electrode disposed on an upper surface of the dielectric layer,
Wherein the distance between the center of the radiation surface on which the electromagnetic wave is radiated and the receiving module is greater than the distance between the center of the radiation surface and the transmitting module. The method according to claim 1,
Wherein the first electrode and the second electrode extend in a first direction in which the signal is transmitted. The plasma display panel of claim 1,
And a plurality of electrodes for transmitting a differential signal. The antenna according to claim 2,
A second dielectric layer;
A radiation surface disposed on the second dielectric layer and including a radiation pattern for radiating electromagnetic waves; And
And a feed line for supplying power to the radiation pattern,
Wherein the feed line extends parallel to the first direction and perpendicular to a second direction in which the electromagnetic wave is radiated. The antenna according to claim 1,
And wherein the transmission line is disposed on the same PCB as the transmission line.

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