KR102264327B1 - A device for transmitting and receiving radio signals in wireless communication system - Google Patents

Abstract

An electronic device and a wireless signal transmission/reception system are provided. Among them, the electronic device includes a housing including at least a portion of a conductive region, a communication circuit positioned inside the housing, and a ground to which the conductive region and a ground terminal of the communication circuit are electrically connected, the communication circuit comprising: A signal of a predetermined frequency band received by an auxiliary antenna coupled to the conductive region from the outside of the electronic device is received and processed.

Description

A DEVICE FOR TRANSMITTING AND RECEIVING RADIO SIGNALS IN WIRELESS COMMUNICATION SYSTEM

The present invention relates to a wireless signal transmission/reception system, and more particularly, to a portable system capable of receiving an FM frequency signal.

Recently, portable electronic devices, such as mobile phones and tablet PCs, are equipped with various wireless communication functions and a wireless power charging function. At this time, since the frequency used for each wireless communication and wireless power charging is different for each application, an antenna must be provided for each frequency or application. Accordingly, the number of antennas provided in portable electronic devices is increasing.

As described above, as the number of antennas used, such as a WPC antenna, an NFC antenna, and an MST antenna, increases, a plurality of antennas are being applied in the form of a combo.

Existing antennas for mobile communication terminals are in the form of quarter-wave monopoles or helicals that protrude to the outside of the mobile communication terminals, making them inconvenient to carry and have a problem of robustness. In order to solve these problems, research on a built-in antenna is being actively conducted.

In particular, in relation to miniaturization and thinning of the device, attempts to reduce the volume occupied by the antenna are continuing.

An object of the present invention is to provide a system capable of receiving a signal in an FM frequency band in a small electronic device such as a smart device.

The problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

In an electronic device according to an embodiment of the present invention for solving the above problems, a housing including at least a portion of a conductive region, a communication circuit positioned inside the housing, and a ground terminal of the conductive region and the communication circuit are electrically and a ground connected to the , wherein the communication circuit receives and processes a signal of a predetermined frequency band received by an auxiliary antenna coupled to the conductive region from the outside of the electronic device.

The electronic device may further include a feeding line having one end connected to the input terminal of the communication circuit and the other end connected to a conductive region adjacent to the portion to which the auxiliary antenna is coupled.

The feeding line may be a circuit pattern of a printed circuit board or a cable.

The conductive region may be exposed to the outside of the electronic device, and the auxiliary antenna may be coupled to the conductive region by contacting the auxiliary antenna.

The auxiliary antenna may be electrically coupled to the conductive region.

The electronic device may further include a non-conductive cover layer coupled to an outer surface of the conductive region, and the conductive region and the auxiliary antenna may be electrically coupled to each other with the non-conductive cover layer interposed therebetween.

The predetermined frequency band may be an FM frequency band.

A wireless signal transmission/reception system according to another embodiment of the present invention for solving the above problems is a wireless signal transmission/reception system including an electronic device and an auxiliary antenna coupled to the outside of the electronic device, wherein the electronic device includes at least a part a housing including a conductive area of , a communication circuit positioned inside the housing, and a ground to which the conductive area and a ground terminal of the communication circuit are electrically connected, wherein the auxiliary antenna overlaps the conductive area of the housing and a region, wherein the communication circuit receives and processes a signal of a predetermined frequency band received by the auxiliary antenna.

The auxiliary antenna may be in direct contact with the conductive region.

The electronic device may further include a non-conductive cover layer covering an outer surface of the conductive region, and the conductive region and the auxiliary antenna may be electrically coupled to each other with the non-conductive cover layer interposed therebetween.

The wireless signal transmission/reception system may further include a cover member covering the auxiliary antenna.

The housing of the electronic device may include a side member including the conductive region and a support member supporting the side member, and the cover member may correspond to a shape of the housing.

The cover member may expose at least a portion of the auxiliary antenna.

The length of the auxiliary antenna may be 10 cm to 80 cm.

The details of other embodiments are included in the detailed description and drawings.

According to embodiments of the present invention, even a small smart electronic device may receive a signal in the FM frequency band.

Effects according to the embodiments of the present invention are not limited by the contents exemplified above, and more various effects are included in the present specification.

1 is a perspective view illustrating a wireless signal transmission/reception system according to an embodiment.
FIG. 2 is an exploded perspective view schematically illustrating the wireless signal transmission/reception system of FIG. 1 .
3 is a block diagram schematically illustrating a wireless signal transmission/reception system according to an embodiment.
4 is a perspective view schematically illustrating a case according to an embodiment.
5 is an exploded perspective view schematically illustrating a wireless signal transmission/reception system according to another embodiment.
6 is a block diagram schematically illustrating a wireless signal transmission/reception system according to the embodiment.
7 is a perspective view schematically showing the case 20 according to the embodiment.
8 to 10 are perspective views schematically illustrating a case of a wireless signal transmission/reception system according to still other embodiments.
11 is a perspective view schematically illustrating a case of a wireless signal transmission/reception system according to another embodiment.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. Also, terms such as “comprise” or “have” are intended to designate that a feature, number, step, action, component, part, or combination thereof described in the specification is present, and includes one or more other features or numbers, It does not preclude the possibility of the presence or addition of steps, operations, components, parts, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same or similar reference numerals are used for the same components in the drawings.

1 is a perspective view illustrating a wireless signal transmission/reception system according to an embodiment. FIG. 2 is an exploded perspective view schematically illustrating the wireless signal transmission/reception system of FIG. 1 .

1 and 2, the wireless signal transmission/reception system 1 includes an electronic device and a coupling member.

Hereinafter, the smart phone 10 as an electronic device will be described as an example. However, the present invention is not limited thereto and may be implemented in the form of various smart devices including laptops, monitors, TVs, mobile phones, MP3 players, medical measuring devices, and wearable devices and HMDs, as long as the spirit of the invention is not changed.

In addition, as a coupling member, a detachable smartphone 10 case 20 will be described as an example. However, unless the spirit of the invention is changed without being limited thereto, it may be replaced with a component of an electronic device, such as a housing, a cover plate or a side frame, disposed on the outermost part of the electronic device, or electronic devices such as stickers or magnet It may be implemented in a separate form that can be attached to the device.

That is, the wireless signal transmission/reception system 1 may be implemented in a form in which the case 20 is inserted into the smart phone 10 as an embodiment.

The smartphone 10 includes a display area DA and a non-display area NDA. The display area DA is defined as an area for displaying an image. The non-display area NDA is disposed outside the display area DA and is defined as an area in which an image is not displayed. The display area DA may be used not only as an area in which the smartphone 10 displays content to be displayed, but also as an area in which a user can input through a touch.

The smartphone 10 may include a side member 120 (eg, a side frame), a printed circuit board 130 , a support member 140 (eg, a bracket), and a cover glass 110 .

The side member 120 may be a member surrounding the side of the smartphone 10 . For example, the side member 120 includes a cover glass 110 that covers the front of the smartphone 10 and a rear plate that covers the back of the smartphone 10 and faces the cover glass 110 in the opposite direction (or It may be arranged to surround the space between the second plates) (not shown).

In the present specification, the front surface means a surface facing the upper direction with respect to FIG. 2 , and the rear surface means a surface facing the lower direction with respect to FIG. 2 . However, the front and rear surfaces are not limited to terms and may be understood to refer to relative surfaces facing each other.

The side member 120 may include a conductive area CA and a non-conductive area NCA. For example, the conductive area CA of the side member 120 may be formed of a metal. The non-conductive area NCA of the side member 120 may be formed of an insulator. At least a portion of the conductive portion of the side member 120 may be used as a radiator of an antenna included in the smartphone 10 .

The printed circuit board 130 may be disposed in a space surrounded by the side member 120 . The printed circuit board 130 may support various components of the smartphone 10 . The printed circuit board 130 may include conductive lines that electrically connect at least some of the components disposed on the printed circuit board 130 and other components to each other. The printed circuit board 130 may include a power supply line and a ground line electrically connected to the side member 120 . The printed circuit board 130 may include a ground plate.

As used herein, reference to an element or layer “on” or “on” another element or layer refers to another layer or other element in between as well as directly on the other element or layer. Including all intervening cases. On the other hand, reference to an element "directly on" or "immediately on" indicates that no intervening element or layer is interposed.

The support member 140 may be disposed between the printed circuit board 130 and a rear plate (not shown) covering the rear surface of the smartphone 10 in a space surrounded by the side member 120 . The support member 140 may support the printed circuit board 130 and the side member 120 .

The support member 140 may be made of metal. The support member 140 disposed between the printed circuit board 130 and a panel (not shown) of the display 380 may cause electromagnetic interference between the printed circuit board 130 and the panel (not shown) of the display 380 . can be shielded.

The support member 140 and the side member 120 may constitute a housing. That is, the support member 140 and the side member 120 may each be a part of the housing. Although not clearly shown, in one embodiment, the housing member may include a non-conductive cover layer covering the outer surfaces of the support member 140 and the side member 120 . For example, the non-conductive cover layer may include a painted surface as the coated surface.

The cover glass 110 may be a member that covers the front surface of the smartphone 10 . The cover glass 110 may be a place in contact with an input means such as a user's finger or a touch pen. The cover glass 110 may protect various parts of the smart phone 10 from external scratches.

The case 20 may be detachably attached to the smartphone 10 . When the case 20 is attached to the smartphone 10 (in the case of FIG. 1 ), the case 20 may surround at least a portion of the smartphone 10 . For example, when the case 20 is attached to the smartphone 10 , the front surface of the case 20 may be in contact with the rear surface and the edge surface of the smartphone 10 . That is, the case 20 may be attached to the smartphone 10 while in contact with the side member 120 and the rear plate of the smartphone 10 .

The cover member 201 of the case 20 may be made of a polymer material. For example, the polymer material may include Thermoplastic Polyurethane (TPU), Polycarbonate (PC), or artificial leather. However, the surface of the case 20 is not limited thereto, and may be made of a material widely used by those skilled in the art.

3 is a block diagram schematically illustrating a wireless signal transmission/reception system according to an embodiment.

Referring to FIG. 3 , the smartphone 10 includes a first antenna 311 , a second antenna 312 , a third antenna 313 , a printed circuit board 130 , a first matching unit 331 , and a second It may include a matching unit 332 , a third matching unit 333 , a fourth matching unit 334 , a communication circuit 330 , a processor 360 , a ground layer 370 , and a display 380 . In addition, the case 20 may include an auxiliary antenna 211 . For convenience of description, it is illustrated that a portion of the outer housing of the smartphone 10 is a conductive area CA. Also, for convenience of description, the printed circuit board 130 of FIG. 3 may be the same member as the printed circuit board 130 of FIG. 2 , but reference numerals are different for convenience of description.

The smartphone 10 includes a plurality of antennas. In an exemplary embodiment, although the smartphone 10 is described as including three antennas, the number of antennas is not limited. If necessary, some of the antennas may be omitted, and the smartphone 10 may further include another antenna.

The first antenna 311 , the second antenna 312 , and the third antenna 313 may function as a radiator of the antenna. Each of the first antenna 311 , the second antenna 312 , and the third antenna 313 may be configured to have a resonant frequency resonating at a target frequency. The first antenna 311 , the second antenna 312 , and the third antenna 313 may be a part of the side member 120 of FIG. 2 , but are not limited thereto.

The first antenna 311 , the second antenna 312 , and the third antenna 313 may be selected from a WPT antenna, an MST antenna, an NFC antenna, a GPS antenna, a Wi-Fi antenna, a Bluetooth antenna, an LTE antenna, and a 5G antenna. have.

The printed circuit board 130 may support various configurations of the smartphone 10 . For example, the communication circuit 330 and the processor 360 may be disposed on the printed circuit board 130 . The printed circuit board 130 may include feed lines and ground lines.

Although not clearly shown, the smart phone 10 may include a grounding unit composed of at least one grounding plate. The at least one ground plate may be evenly distributed on the inside and the surface of the smartphone 10 .

In an embodiment, one of the configurations of the above-described ground unit may be embedded in the printed circuit board 130 as the ground layer 370 . In another embodiment, the ground layer 370 may be a part of the support member 140 (eg, the support member 140 of FIG. 2 ) or may be a ground of the display 380 . In addition, the ground layer 370 may be located in various parts of the smartphone 10 .

In an embodiment, the ground layer 370 may be disposed to be spaced apart from the first antenna 311 , the second antenna 312 , and the third antenna 313 .

In an embodiment, the ground layer 370 or a portion of the ground layer 370 may be electrically connected to the first antenna 311 , the second antenna 312 , and the third antenna 313 . The first antenna 311 , the second antenna 312 , and the third antenna 313 may be grounded through a first ground line 351 , a second ground line 352 , and a third ground line 353 , respectively. have. However, in another embodiment, some of the first antenna 311 , the second antenna 312 , and the third antenna 313 may be electrically connected to another ground plate built in the smartphone 10 through a ground line. have.

Meanwhile, a partial region of the ground layer 370 may be electrically coupled to at least a partial region of another conductive material. For example, the ground layer 370 may be electrically coupled to the auxiliary antenna 211 of the case 20 .

The communication circuit 330 may be electrically connected to the first antenna 311 , the second antenna 312 , and the third antenna 313 . For example, the communication circuit 330 may be electrically connected to the first antenna 311 through the first feed line 341 . The communication circuit 330 may be electrically connected to the second antenna 312 through the second feed line 342 . The communication circuit 330 may be electrically connected to the third antenna 313 through the third feed line 343 . The communication circuit 330 may receive electrical signals from the first antenna 311 , the second antenna 312 , and the third antenna 313 . The communication circuit 330 may supply electrical signals to the first antenna 311 , the second antenna 312 , and the third antenna 313 . In some embodiments, each feed line may consist of a circuit pattern or cable of the communication circuit 330 .

Meanwhile, the communication circuit 330 may be electrically coupled to the auxiliary antenna 211 of the case 20 through the ground layer 370 , the fourth feed line 344 , and the fifth feed line 345 . For example, the communication circuit and the ground layer 370 may be electrically connected through the fourth feed line 344 , and the ground layer 370 and the conductive area CA are electrically connected through the fifth feed line 345 . can be connected to One end of the fifth feed line 345 may be electrically connected to the input terminal of the communication circuit, and the other end may be electrically connected to the conductive area CA adjacent to the overlapping portion by coupling with the auxiliary antenna 211 . The auxiliary antenna 211 may be electrically coupled to the conductive area CA of the housing. As a result, the communication circuit 330 may be electrically coupled to the auxiliary antenna 211 .

In one embodiment, the auxiliary antenna 211 may be an FM reception antenna. That is, the auxiliary antenna 211 may receive the FM frequency. That is, when the auxiliary antenna 211 and the communication circuit are coupled and electrically coupled, the electronic device may receive the FM frequency.

In other words, the auxiliary antenna 211 and the conductive area CA of the smartphone 10 may be spaced apart from each other with the non-conductive cover layer of the smartphone 10 and the cover member 201 of the case 20 therebetween. . However, the auxiliary antenna 211 and the ground layer 370 may be electrically coupled and configured to have the same resonant frequency. As a result, the auxiliary antenna 211 and the ground layer 370 are electrically coupled to receive a signal of the same frequency band.

The ground layer 370 coupled to the auxiliary antenna 211 may form a MIMO, single input multiple output (SIMO), or multiple input single output (MISO) antenna together. For example, the auxiliary antenna 211 may be formed to transmit and receive radio signals, and the ground layer 370 may be formed to receive radio signals together with the auxiliary antenna 211 .

When the case 20 is attached to the smart phone 10 so that a coupling can be formed between the auxiliary antenna 211 and the ground layer 370 , the auxiliary antenna 211 and the ground layer 370 are separated by a predetermined distance. can be approached within. For example, the interval is preferably formed within 1/10 of a wavelength corresponding to a specific frequency so that capacitive coupling can be formed between the auxiliary antenna 211 and the ground layer 370 . That is, when the case 20 is attached to the electronic device, the interval between the auxiliary antenna 211 and the ground layer 370 may be within 1/10 of a wavelength corresponding to the FM frequency band. The FM frequency may be a frequency band ranging from 87 MHz to 110 MHz.

According to the above-described structure, a resonance length capable of transmitting and receiving a specific frequency can be formed through a shorter path by coupling between the auxiliary antenna 211 and the ground layer 370 , so that the antenna can be miniaturized.

The communication circuit 330 may be one IC that supports communication of one of FM reception, WPT, MST, NFC, GPS, Wi-Fi, Bluetooth, LTE, and 5G, and also, FM reception, WPT, MST, NFC , GPS, Wi-Fi, Bluetooth, LTE, and may include a plurality of ICs supporting a plurality of communications selected from 5G.

The communication circuit 330 and each antenna may be electrically connected or electrically coupled through a matching unit. For example, the first matching unit 331 electrically connects them between the first antenna 311 and the communication circuit 330 , and the second matching unit 332 includes the second antenna 312 and the communication circuit ( 330), the third matching unit 333 electrically connects them between the third antenna 313 and the communication circuit 330, and the fourth matching unit 334 is electrically coupled. These may be electrically connected or electrically coupled between the ground layer 370 and the auxiliary antenna 211 and the communication circuit 330 .

The matching unit includes impedances of FM receiving antenna, WPT antenna, MST antenna, NFC antenna, GPS antenna, Wi-Fi antenna, Bluetooth antenna, LTE antenna and 5G antenna and FM receiving IC, WPT IC, MST IC, NFC IC, GPS IC , can reduce signal loss and improve signal transmission characteristics by matching the impedance of Wi-Fi IC, Bluetooth IC, LTE IC and 5G IC. Improvement of signal transmission characteristics may improve communication quality. In other words, the matching unit may transmit and receive a radio frequency signal of a target frequency band by matching the impedance of the antenna with the impedance of the IC. Each IC may receive and process a reception signal of a target frequency band received through the matching unit, and may process a transmission signal of the target frequency band to be transmitted.

The processor 360 may be electrically connected to the communication circuit 330 and the display 380 . The processor 360 may control the communication circuit 330 and the display 380 . The processor 360 may control other components of the smartphone 10 electrically connected to the processor 360 .

The display 380 may be electrically connected to the processor 360 . The display 380 may be controlled by the processor 360 . The display 380 may be exposed through the front surface of the smartphone 10 . The display 380 may be, for example, a display panel and/or a touch screen panel.

4 is a perspective view schematically illustrating a case according to an embodiment.

Referring to FIG. 4 , the auxiliary antenna 211 may be interposed inside the case 20 . The case 20 may include an auxiliary antenna 211 and a cover member 201 covering the auxiliary antenna 211 .

The cover member 201 may have a shape corresponding to the shape of the smart phone 10 when combined with the smart phone 10 . For example, the cover member 201 may include a front surface that is a plane corresponding to the rear surface of the smartphone 10 and a side surface corresponding to the side member 120 of the smartphone 10 .

The auxiliary antenna 211 may include a connection area 251 disposed adjacent to the conductive area CA of the smartphone 10 and a radiation area extending from the connection area 251 . The connection area 251 of the auxiliary antenna 211 may be formed at a position where coupling with the conductive area CA of the smartphone 10 may occur. For example, it may correspond to the side surface of the case 20 . That is, the conductive area CA and the connection area 251 of the auxiliary antenna 211 may overlap each other in the thickness direction of the side surface of the case 20 .

In order to form a coupling between the auxiliary antenna 211 and the conductive area CA, the connection area 251 of the auxiliary antenna 211 has a width wider than the width of the radiation area extending from the connection area 251 . can be formed.

In one embodiment, the auxiliary antenna 211 may be formed in a radiator structure of a monopole type (ie, one side is connected to the power supply unit and the other side is an open type).

The auxiliary antenna 211 may be formed to have a predetermined length to receive a target frequency together with the ground layer 370 . In one embodiment, the auxiliary antenna 211 may be about 10 cm to about 80 cm or less in order to receive a signal of the FM frequency band together with the ground layer 370 .

In an embodiment, the auxiliary antenna 211 may have a shape that extends in one direction from the coupling region and swings in a direction perpendicular to the direction. The shape of the auxiliary antenna 211 is not limited to that shown in the drawings, and may have various shapes within a length condition.

However, the shape and arrangement of the auxiliary antenna 211 are not limited to the illustrated ones. In another embodiment, the auxiliary antenna 211 may be disposed to be exposed on the front or rear surface of the case 20 .

Next, the wireless signal transmission and reception system 1 according to another embodiment will be described. Hereinafter, descriptions of the same components in FIGS. 1 to 4 and the drawings are omitted, and the same or similar reference numerals are used.

5 is an exploded perspective view schematically illustrating a wireless signal transmission/reception system according to another embodiment. 6 is a block diagram schematically illustrating a wireless signal transmission/reception system according to the embodiment. 7 is a perspective view schematically illustrating a case according to the embodiment.

5 to 7, in the wireless signal transmission/reception system 2 according to the present embodiment, compared to the wireless signal transmission/reception system 1 of FIGS. 2 to 4, the conductive area CA and the auxiliary antenna 211 are electrically The difference is that it is not connected by a coupling, but is directly electrically connected.

The case 20 - 1 may include a contact pad 240 exposed on a side surface. The contact pad 240 may be connected to the connection area 251 of the auxiliary antenna 211 . The contact pad 240 may include a conductive material. The contact pad may be electrically connected to the auxiliary antenna 211 .

When the case 20 - 1 is coupled to the smartphone 10 , the conductive area CA of the smartphone 10 and the contact pad 240 of the case 20 - 1 may be in direct contact. In other words, the conductive area CA and the contact pad 240 may be electrically connected. In the drawing, in order to indicate that the conductive area CA and the contact pad 240 are electrically connected, a conductive line is shown and expressed. That is, the auxiliary antenna 211 may be electrically connected to the communication circuit 330 and the ground layer 370 of the smartphone 10 .

The communication circuit 330 electrically connected to each other may receive the target frequency together with the auxiliary antenna 211 . For example, the ground layer 370 and the auxiliary antenna 211 may receive a signal in the FM frequency band together.

8 to 10 are perspective views schematically illustrating a case of a wireless signal transmission/reception system according to still other embodiments.

8 to 10 , the cases 20-2, 20-3, and 20-4 of the wireless signal transmission/reception system according to the present embodiments are the case 20 of the wireless signal transmission/reception system 1 of FIG. In contrast, there is a difference in that the radiation areas of the auxiliary antennas 211-1, 211-2, and 211-3 have different shapes.

The auxiliary antennas 211-1, 211-2, and 211-3 may require a length longer than the horizontal or vertical length of the case 20 in order to receive a signal of the FM frequency band. Various types may be required to secure the length of the radiation region of the auxiliary antennas 211-1, 211-2, and 211-3 to a certain level or more.

For example, as in the embodiment of FIG. 8 , the case 20 - 2 may have the radiation area in a coil shape to secure its length. Alternatively, as in the embodiment of FIG. 9 , the case 20 - 3 may have the radiation area in the shape of a double coil to secure its length. Alternatively, as in the embodiment of FIG. 10 , the case 20 - 4 may secure the length of the radiation region in an atypical form rather than a standard form.

8 to 10 , the auxiliary antennas 211-1, 211-2, and 211-3 may have various shapes. However, FIGS. 8 to 10 are merely exemplary embodiments showing that the auxiliary antennas 211-1, 211-2, and 211-3 may have various shapes, and may be configured in other various shapes.

11 is a perspective view schematically illustrating a case of a wireless signal transmission/reception system according to another embodiment.

Referring to FIG. 11 , the case 20-5 of the wireless signal transmission/reception system according to this embodiment has a radiation area of the auxiliary antenna 211-4 compared to the case 20 of the wireless signal transmission/reception system 1 of FIG. 4 . There is a difference in that it is formed on the side surface of the case 20-5.

The radiation area of the auxiliary antenna 211-4 may be disposed only on the side surface of the case 20-5. In another embodiment, the radiation area of the auxiliary antenna 211-4 may be disposed on the front side as well as the side of the case 20-5.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1, 2: Wireless signal transmission/reception system
10: Smartphone
20, 20-1, 20-2, 20-3, 20-4, 20-5: case
110: cover glass
120: side member
130, 320: printed circuit board
140: support member
201: front of the case
211, 211-1, 211-2, 211-3, 211-4: auxiliary antenna
251: connection area
240: contact pad
311 to 313: first to third antennas
330: communication circuit
341 to 345: first to fifth feeding lines
351 to 354: first to fourth ground lines
360: Processor
370: ground layer
380: display
DA: display area
NDA: non-display area

Claims (15)

In the wireless signal transmission and reception system comprising an electronic device and an auxiliary antenna coupled to the outside of the electronic device,
a housing including at least a portion of the conductive region;
a communication circuit located inside the housing; and
and a ground portion to which the conductive region and the ground terminal of the communication circuit are electrically connected,
The communication circuit is located outside the electronic device, receives and processes a signal of a predetermined frequency band received by the auxiliary antenna coupled to the conductive region,
The housing includes a side member surrounding a side surface of the electronic device, wherein the side member includes a conductive region functioning as an antenna radiator of the electronic device and a non-conductive region defining the conductive region. According to claim 1,
The electronic device further comprising a feeding line having one end connected to the input terminal of the communication circuit and the other end connected to a conductive region adjacent to the portion to which the auxiliary antenna is coupled. 3. The method of claim 2,
The power supply line is a circuit pattern or cable of a printed circuit board electronic device. According to claim 1,
The conductive region is exposed to the outside of the electronic device,
The auxiliary antenna is coupled to the conductive area in contact with the electronic device. According to claim 1,
and the auxiliary antenna is electrically coupled to the conductive region. 6. The method of claim 5,
Further comprising a non-conductive cover layer bonded to the outer surface of the conductive region,
The conductive region and the auxiliary antenna are electrically coupled by being coupled with the non-conductive cover layer therebetween. According to claim 1,
The predetermined frequency band is an FM frequency band. In the wireless signal transmission and reception system comprising an electronic device and an auxiliary antenna coupled to the outside of the electronic device,
The electronic device is
a housing including at least a portion of the conductive region;
a communication circuit located inside the housing; and
and a ground portion to which the conductive region and the ground terminal of the communication circuit are electrically connected,
The auxiliary antenna includes a region overlapping the conductive region of the housing,
The communication circuit receives and processes a signal of a predetermined frequency band received by the auxiliary antenna,
The housing includes a side member surrounding a side surface of the electronic device, wherein the side member includes a conductive region functioning as an antenna radiator of the electronic device and a non-conductive region insulating the conductive region,
Further comprising a cover member for covering the auxiliary antenna, wherein the cover member comprises a side portion forming a side surface of the cover member and a rear portion forming a rear surface of the cover member,
A connection region in which the auxiliary antenna is electrically connected to the conductive region of the side member is located on the side portion of the cover member
The auxiliary antenna extends from the side portion to the rear portion, and the length of the auxiliary antenna formed on the rear portion is longer than the length of the auxiliary antenna formed on the side portion. 9. The method of claim 8,
The auxiliary antenna is a wireless signal transmission and reception system in direct contact with the conductive area. 9. The method of claim 8,
The electronic device further comprises a non-conductive cover layer covering the outer surface of the conductive region,
The conductive area and the auxiliary antenna are coupled to each other with the non-conductive cover layer therebetween and are electrically coupled to each other. 9. The method of claim 8,
The wireless signal transmission and reception system further comprising a cover member covering the auxiliary antenna. 12. The method of claim 11,
The housing of the electronic device includes a side member including the conductive region and a support member supporting the side member,
The cover member is a wireless signal transmission and reception system corresponding to the shape of the housing. 12. The method of claim 11,
The cover member is a radio signal transmission and reception system for exposing at least a portion of the auxiliary antenna. 9. The method of claim 8,
The length of the auxiliary antenna is 10cm to 80cm wireless signal transmission and reception system. 9. The method of claim 8,
The shape of the auxiliary antenna formed on the rear portion of the cover member is
A radio signal transmission/reception system having any one of a meander line antenna shape, a shape radiating in a coil shape, a shape radiating in a double coil form, or a shape radiating in an atypical form rather than a standardized form.

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