KR20150089376A - Earphone antenna - Google Patents

Abstract

The present invention relates to an earphone antenna, and, more specifically, to an earphone antenna wherein it is easy to change the characteristics of the antenna in using the earphone as an antenna; an antenna optimized for the band characteristics can be provided; the convenience in manufacturing is guaranteed; and the yield can be increased. The present invention provides an earphone antenna wherein an earphone cable or an extension cable is made in the form of a flat cable; an antenna pattern and a sound signal line can be formed on different surfaces on a FPCB inside the flat cable; the structure and the shape of the antenna pattern can be easily controlled to be optimized for a multiple band characteristic without considering the placement of the sound signal line; the convenience in manufacturing is guaranteed; and the earphone antenna is optimized for the band characteristics.

Description

Earphone antenna

The present invention relates to an earphone antenna, and more particularly, to an earphone antenna capable of providing an antenna optimized for a band characteristic by easily changing an antenna characteristic when using an earphone as an antenna, .

In order to smoothly provide a variety of bandwidth services through wireless communication, an antenna length suited to band characteristics should be basically guaranteed. However, as miniaturization and aesthetic enhancement of a terminal have been recently required, development of an antenna suitable for such functions is required.

Various antennas have been developed for ensuring the external appearance of the antenna for enhancing the portability and aesthetics by mounting the antenna in the terminal or various additional devices connected to the terminal while ensuring the external appearance of the antenna .

Among these antennas, there is an antenna using an earphone which is connected to a terminal and outputs sound.

The antenna using the earphone may be configured such that an antenna is mounted on the earphone cable and another terminal provided on the earphone connector is connected to the antenna to transmit and receive a signal.

Since the antenna using the earphone is connected to the outside of the terminal, there is no fear of interference with signals generated in the terminal, noise is reduced, and the antenna is connected to the earphone without a separate antenna configuration, .

However, the presently provided earphone-use antenna is configured as a shield for enclosing an acoustic signal line formed in a circular earphone cable. However, since the length of the antenna is longer than necessary due to the length of the acoustic signal line, The performance is deteriorated and it is difficult to construct an antenna suitable for the band characteristic. In addition, it is difficult to construct a multi-band antenna for receiving wireless services provided in various bands.

In order to solve this problem, it is desired to provide an antenna which is optimized for the band characteristics by forming an antenna line in a helical form on a separate extension cable connecting the earphone and the terminal. However, this configuration also has a complexity in constituting a helical structure, And is configured to be fixed to an antenna length suitable for a single band, there is a limit to provide an antenna configuration for multi-band.

FIG. 1 shows an earphone antenna according to an embodiment of the present invention. FIG. 1 is a perspective view of an earphone antenna according to the related art. Referring to FIG. 1, And an antenna 2. The antenna 2 may be constructed separately as described above or may be separated from the side of the audio cable 3 to surround the audio cable 3 and the audio cable 3, And is formed in a helical shape that is formed so as to surround it.

As can be seen from FIG. 1, the conventional earphone antenna configuration has difficulty in adjusting the antenna length. In order to change the band characteristic due to fixed antenna length in a single band, the overall antenna design must be changed, It is difficult to adjust it with characteristics.

In addition, since the antenna structure using the conventional earphone requires direct connection between the antenna and the connector having a helical structure formed inside the earphone cable, the robustness of the contact point is low, thereby causing frequent problem of signal transmission / reception failure.

Korean Patent Publication No. 2013-0019756

In order to solve the above-described problems, the present invention provides an FPCB in an earphone cable, an antenna pattern and an acoustic signal line in an FPCB, and an antenna structure satisfying a band characteristic is easily formed. An earphone antenna is provided.

It is another object of the present invention to provide an earphone antenna that can easily configure an antenna having a multi-band characteristic and can prevent contact failure by ensuring strength of an antenna as compared with a conventional earphone antenna.

In addition, the present invention provides an earphone antenna capable of configuring an antenna with a minimum process on a single substrate using FPCB, ensuring product uniformity and yield, and integrating various devices so as to facilitate band matching and noise reduction. The purpose is to provide.

An earphone antenna according to an exemplary embodiment of the present invention includes a connector including a contact portion connected to an acoustic signal source and a feed portion, an FPCB connected to one end of the connector, and a speaker disposed on one side of the FPCB, An antenna pattern corresponding to a plurality of bands and being divided into at least two different shapes and being connected to the feeding part via the contact part to transmit and receive a radio signal; And an insulating sheath formed to surround the FPCB and providing an outline of the flat cable.

In one embodiment of the present invention, the antenna pattern is divided into a plurality of regions, and at least one of the regions has an antenna pattern different from the other regions.

According to an embodiment of the present invention, the antenna pattern may have at least one of width, length, number of turns, pitch, and spacing in at least one of the regions depending on a band characteristic.

As an example related to the present invention, a gender may be further provided, which is connected to the other end of the FPCB and transmits an acoustic signal provided through the acoustic signal line to an earphone.

As an example related to the present invention, the antenna pattern may be characterized in that one end is soldered to the contact portion on the FPCB.

As an example related to the present invention, the apparatus may further include a chip element mounted on the FPCB to vary a band characteristic of the antenna pattern or to reduce noise.

As an example related to the present invention, the FPCB may be configured as a multilayer, and the antenna pattern may be additionally formed on another side of the FPCB.

As an example related to the present invention, the antenna patterns formed in different FPCBs correspond to different bands, respectively.

As one example related to the present invention, one ends of the antenna patterns formed in different FPCBs may be connected to each other to correspond to a specific band.

According to another aspect of the present invention, there is provided an earphone antenna including a connector including a contact portion connected to an acoustic signal source and a feed portion, an FPCB connected to one end of the connector, and a connector connected to the contact portion At least one of the regions being different in shape from the other regions so as to correspond to multiple bands and being divided into a plurality of regions and being divided into a plurality of regions, An antenna pattern formed to surround the FPCB and providing an outer shape of the flat cable, and a gender connected to the other end of the FPCB and connected to the earphone, .

According to another aspect of the present invention, there is provided an earphone antenna comprising: a connector including a contact part connected to an acoustic signal source and a feed part; an FPCB connected to one end of the connector; An antenna pattern corresponding to a plurality of bands divided into two or more different shapes and connected to the feeding part via the contact part to transmit and receive a radio signal, And an insulating sheath formed to surround the FPCB and providing an outline of the flat cable.

According to the present invention, it is possible to form an earphone cable or an extension cable in the form of a flat cable, and the antenna pattern and the acoustic signal line can be formed on different surfaces of the FPCB formed in the flat cable, The structure and shape of the earphone antenna can be easily adjusted so as to be optimized for multi-band characteristics, thereby providing an earphone antenna that is optimized for band characteristics while ensuring manufacturing convenience.

Further, since the antenna pattern and the acoustic signal line can be easily formed on the FPCB in a single process, the present invention remarkably reduces the complexity as compared with the conventional earphone antenna, thereby providing ease of fabrication and ensuring a high yield.

In addition, since the antenna pattern and the acoustic signal line can be soldered to the connector and the gender on the FPCB, the present invention can secure the high rigidity to prevent the contact failure and ensure the yield and stability.

In addition, the present invention can transmit and receive various radio signals by providing an antenna pattern corresponding to an additional band through a multilayer FPCB structure, and can also provide an antenna optimized for band characteristics for a low frequency band without increasing complexity There is an effect of providing structural efficiency for the configuration of the earphone antenna.

In addition, the present invention can easily mount various chip elements capable of reducing band matching or noise on the FPCB formed in the earphone antenna, thereby providing an optimized antenna with high yield and low cost.

1 is a perspective view of an earphone antenna according to the prior art;
2 is a front view of an earphone antenna according to an embodiment of the present invention;
3 is a perspective view of an earphone antenna according to an embodiment of the present invention;
4 is a diagram illustrating a configuration example of an FPCB included in an earphone antenna according to an embodiment of the present invention.
FIG. 5 is a diagram illustrating an exemplary configuration of an earphone antenna according to an embodiment of the present invention; FIG.
6 is an exemplary view showing a multi-layer structure of FPCB included in an earphone antenna according to an embodiment of the present invention.
7 is a graph illustrating an antenna gain according to a band characteristic of an earphone antenna according to an embodiment of the present invention.
8 is an exemplary view of another configuration of an earphone antenna according to an embodiment of the present invention.
Fig. 9 is an exemplary view showing another configuration of an earphone antenna according to an embodiment of the present invention; Fig.

Hereinafter, detailed embodiments of the present invention will be described with reference to the drawings.

2 and 3 are a front view and a perspective view of an earphone antenna according to an embodiment of the present invention. As shown in the figure, the earphone antenna 1 may be an extension cable or an earphone for extending the length of the earphone . The following description is based on an extension cable.

2 and 3, the earphone antenna 1 may include a connector portion 30, a flat cable portion 20, and a gender portion 10.

At this time, the connector unit 30 is connected to the acoustic signal source and the power feeding unit of the terminal, and transmits and receives acoustic signals and radio signals. The connector unit 30 includes a plurality of terminals each corresponding to an acoustic signal and a radio signal And a connection jack unit inserted into the connection port of the terminal and connecting the acoustic signal source and the power supply unit of the terminal to the contact unit. In this case, the contact portion and the connection jack portion are distinguished for convenience, and the connection jack portion may be included in the contact portion, and may be connected to each terminal for transmitting an acoustic signal and a radio signal corresponding to the respective terminals.

One end of the flat cable portion 20 is connected to the connector portion 30 and the flat cable portion 20 is connected to a flexible printed circuit board (FPCB) 21 may be formed on the FPCB 21 and may include an insulating sheath surrounding the FPCB 21 and providing an outline of the flat cable.

As described above, the earphone antenna 1 according to the embodiment of the present invention provides the flat cable type FPCB 21, so that the outer shape of the FPCB 21 can be changed flexibly according to the external shape change of the cable, Lt; / RTI >

One end of the FPCB 21 is formed with an antenna pattern unit connected to the connector unit 30. The antenna pattern unit has one end connected to the contact unit and a radio signal transmitted from the feed unit through the contact unit, Lt; / RTI > An acoustic signal line may be formed on the other surface of the FPCB 21 to transmit the acoustic signal transmitted from the acoustic signal source to the earphone through the contact portion.

The gender unit 10 is configured to be connected to a connection jack of an earphone. The gender unit 10 can transmit an acoustic signal transmitted through the acoustic signal line to an earphone, and output an acoustic signal from the earphone.

4 is a diagram illustrating a configuration example of the FPCB 21 included in the earphone antenna 1 according to the embodiment of the present invention. As described above, the antenna pattern unit 22 may be formed on one side of the FPCB 21 And an acoustic signal line 23 for transmitting an acoustic signal may be formed on the other surface of the FPCB 21.

At this time, the antenna pattern unit 22 may be divided into a plurality of areas as shown in the figure, and antenna patterns having different shapes may be formed in at least one area so as to correspond to multiple bands, and they may be connected to each other.

For example, the antenna pattern unit 22 may form an antenna pattern with a meandering structure of a and c regions as shown in FIG. 4 (a), and an antenna pattern with a loop structure of a region b , and the antenna patterns formed in the areas a, b, and c may be electrically connected to provide antenna characteristics for a specific band.

The antenna pattern formed in each of the regions a, b, and c included in the antenna pattern portion 22 can easily vary the band characteristics by applying various structures other than the meander structure and the loop structure. This can provide optimized antenna characteristics for a specific band.

Also, the antenna pattern unit 22 may provide antenna characteristics corresponding to different bands according to the antenna pattern formed in the area a, and may further include antenna characteristics corresponding to another band according to the antenna patterns corresponding to the areas a and b. . ≪ / RTI >

As described above, the antenna pattern unit 22 can provide the antenna characteristics corresponding to the multiple bands by the antenna patterns formed in the areas a, b, and c interacting with each other, Lt; / RTI >

At this time, the antenna pattern unit 22 can change the shape of the antenna pattern formed in each of the areas a, b, and c, such as the width, interval, length, turn number, pitch, It is possible to provide an antenna optimized for characteristics.

For example, as shown in the figure, the antenna pattern unit 22 may be shaped to have different lengths, widths, and gaps from antenna patterns of the a and c regions formed by the meandering structure, Lt; RTI ID = 0.0 > antenna characteristics.

Therefore, as described above, the antenna pattern unit 22 can transmit and receive radio signals corresponding to multiple bands.

The antenna pattern unit 22 can be adjusted in the size of each of the areas a, b, and c. The antenna patterns 22 corresponding to the sizes of the areas a, b, May be adjusted (changed) as described above to correspond to multiple bands.

On the other hand, an acoustic signal line 23 may be formed on the other surface of the FPCB 21 as shown in FIG. 4 (b). Through the structure, the antenna pattern portion 22 and the acoustic signal line 23 Can be formed independently.

As described above, the earphone antenna 1 according to the embodiment of the present invention is different from the conventional helical antenna structure that surrounds the acoustic signal line formed in the circular earphone cable, It is possible to freely adjust the structure and shape of the antenna so that the antenna can be easily optimized for the band characteristic.

In addition, since the earphone antenna 1 can easily form an antenna pattern and an acoustic signal line on the FPCB 21 in a single process, it is possible to provide a manufacturing convenience and a high yield compared to conventional earphone related antennas .

The earphone antenna 1 includes a connector 30 including a connection jack, a gender unit 10 and a flat cable unit (not shown) The flat cable portion 20 may include an FPCB 21 having one end and the other end connected to the connector portion 30 and the gender portion 10, respectively.

The FPCB 21 may have antenna pattern units 22 and acoustic signal lines 23 on one side and the other side, respectively.

At this time, the antenna pattern unit 22 is connected to the power feeding unit of the terminal through the connector unit 30, and can transmit and receive radio signals corresponding to multiple bands as described above.

In addition, the acoustic signal line 23 is connected to the acoustic signal source of the terminal through the connector unit 30 to transmit a sound signal to the gender unit 10, So that a signal can be outputted.

A contact part for transmitting a radio signal and an acoustic signal may be connected to the antenna pattern part 22 and the acoustic signal line 23 on the FPCB 21 by soldering. Also, the acoustic signal line 23 can be soldered on the FPCB 21 with the contact portion formed in the gender portion 10, like the connector portion 30.

Since the antenna pattern unit 22 and the acoustic signal line 23 are soldered on the FPCB 21 and connected to the contact unit, the antenna pattern unit 22 and the acoustic signal line 23 are firmly connected to the connector unit 30 and the gender unit 10 So that high rigidity and stability can be ensured.

6 is a view illustrating an example of a multilayer structure of an earphone antenna according to an embodiment of the present invention. As shown in FIG. 6, a plurality of FPCBs 21 included in the flat cable portion 20 may be stacked.

For example, the flat cable portion 20 may include a first FPCB 21a and a second FPCB 21b having a multilayer structure. An antenna pattern portion 22 is formed on one surface of the first FPCB 21a And an acoustic signal line 23 may be formed on the other surface of the first FPCB 21a.

An additional antenna pattern portion 24 is formed on the other surface of the second FPCB 22b coupled to the other surface of the first FPCB 21a, (Not shown). At this time, the additional antenna pattern part 24 may be connected to the contact part of the connector part 30 through soldering.

Accordingly, the additional antenna pattern unit 24 can provide antenna characteristics corresponding to the additional bands.

At this time, the additional antenna pattern portion 24 may be divided into a plurality of regions d, e, and f as in the antenna pattern portion 22, and antenna patterns having different shapes are formed in at least one region, Can be connected. Accordingly, the additional antenna pattern unit 24 may provide multiple bands different from the bands corresponding to the antenna pattern unit 22.

In addition, the additional antenna pattern part 24 may be connected to the antenna pattern part 22 instead of the contact part of the connector part 30, so that only the antenna pattern part 22 can be connected to the antenna pattern part 22 in a specific low- The antenna length corresponding to the specific low frequency band can be compensated by connecting the additional antenna pattern portion 24 to the antenna pattern portion 22 when the corresponding antenna length is insufficient. .

In other words, the antenna pattern included in the antenna pattern unit 22 and the additional antenna pattern unit 24 can be integrated to provide an antenna characteristic optimized for a specific band.

As described above, the earphone antenna 1 according to the embodiment of the present invention not only can transmit and receive various radio signals by providing additional bands through the multi-layer FPCB 21 configuration, It is possible to easily provide an antenna optimized for a plurality of bands.

FIG. 7 is a graph showing an antenna gain according to the UHF band of the earphone antenna 1 according to the embodiment of the present invention. As shown in FIG. 7, the earphone antenna 1 assures a high antenna gain Able to know. In particular, it can be seen that stable reception is achieved by ensuring high antenna performance compared to an external antenna connected to a terminal and an existing earphone antenna.

8, the earphone antenna 1 according to an embodiment of the present invention shows various configurations of the earphone antenna 1. As shown in the figure, the earphone antenna 1 includes various FPCBs 21, In this case, the chip device 100 may include a matching device for compensating the antenna length or characteristics, a noise reduction device for preventing signal distortion and attenuation, and the like.

As described above, the earphone antenna 1 can be applied to the FPCB 21 with various chip elements 100, and the mounting of the chip element 100 can be easily mounted through a single process, It is possible to provide an antenna optimized for the band characteristic, and at the same time, it can be mass-produced easily through a single process, thereby greatly improving the yield.

9, the earphone antenna 1 includes the acoustic signal line 23 and the antenna pattern portion 22 formed on the same surface of the FPCB 21 at the same time, (20).

At this time, the acoustic signal line 23 and the antenna pattern unit 22 may be formed in different areas on the FPCB so as not to cause signal interference.

In addition, the antenna pattern unit 22 may be divided into a plurality of areas as described above, and antenna patterns having different shapes may be formed in at least one area so as to correspond to multiple bands, and may be interconnected.

In the above-described configuration, a remote control interface (button or pattern generating unit) may be further formed in the FPCB or the connector by using one of the audio signal lines or adding a separate line.

Also, in the above-described configuration, the earphone antenna 1 has been described as an extension cable for extending the earphone cable. However, the earphone antenna may be directly formed in the earphone.

For example, an earphone antenna constituted by an earphone constitutes an FPCB in an earphone cable, and an antenna pattern portion and an acoustic signal line are formed on one surface and the other surface of the FPCB, respectively, and connected to a connector portion of the earphone. The received sound signal can be transmitted to the output unit of the earphone to output the sound signal.

It is needless to say that the earphone antenna 1 may be applied to a headphone.

The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings. However, the present invention is not limited to the above-described embodiments, and various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention. .

1: earphone antenna 10:
20: Flat cable part 21: FPCB
22: antenna pattern portion 23: acoustic signal line
24: additional antenna pattern section 30:
100: chip element

Claims (11)

A connector including a sound signal source and a contact portion connected to the feed portion;
An FPCB connected to one end of the connector;
An acoustic signal line formed on one surface of the FPCB and connected to the acoustic signal source via the contact point;
An antenna pattern formed on the other surface of the FPCB and connected to the feeding part through the contact part to transmit and receive a radio signal and divided into two or more different shapes to correspond to multiple bands; And
An insulating sheath formed to surround the FPCB and providing an external shape of the flat cable;
.
The method according to claim 1,
Wherein the antenna pattern is divided into a plurality of regions, and at least one of the regions has an antenna pattern different from the other region.
The method according to claim 1,
Wherein at least one of the width, the length, the number of turns, the pitch, and the interval is different in at least one of the regions according to a band characteristic.
The method according to claim 1,
Further comprising a gender connected to the other end of the FPCB for transmitting an acoustic signal provided through the acoustic signal line to an earphone.
The method according to claim 1,
Wherein one end of the antenna pattern is soldered to the contact portion on the FPCB.
The method according to claim 1,
Further comprising a chip element mounted on the FPCB to vary a band characteristic of the antenna pattern or to reduce noise.
The method according to claim 1,
Wherein the FPCB is composed of multiple layers, and the antenna pattern is additionally formed on another side of the FPCB.
The method of claim 7,
Wherein the antenna patterns of the FPCB are different from each other.
The method of claim 7,
Wherein one end of each of the antenna patterns formed in the different FPCBs are mutually connected to correspond to a specific band.
A connector including a sound signal source and a contact portion connected to the feed portion;
An FPCB connected to one end of the connector;
An acoustic signal line formed on one surface of the FPCB and connected to the contact point;
Wherein the at least one of the plurality of regions is formed in a shape different from that of the other regions so as to correspond to multiple bands, the plurality of regions being divided into a plurality of regions, An antenna pattern whose band characteristics vary according to a size or a pattern change of the antenna pattern;
An insulating sheath formed to surround the FPCB to provide the outer shape of the flat cable; And
And a gender connected to the other end of the FPCB,
.
A connector including a sound signal source and a contact portion connected to the feed portion;
An FPCB connected to one end of the connector;
An acoustic signal line formed on one surface of the FPCB and connected to the acoustic signal source via the contact point;
An antenna pattern formed on one surface of the FPCB and connected to the feeding part through the contact part to transmit and receive a radio signal and being divided into two or more different shapes to correspond to multiple bands; And
An insulating sheath formed to surround the FPCB and providing an external shape of the flat cable;
.

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