KR20200102628A - Method of operating wireless signal receiving system - Google Patents

Abstract

Provided are operation methods of a radio signal receiving system. According to the present invention, one of the operation methods of the radio signal receiving system, which is a method of operating the radio signal receiving system including an electronic device equipped with an antenna device and a structure equipped with an auxiliary antenna, comprises the steps of: operating the electronic device in a first mode; recognizing the proximity of the structure by the electronic device; and maintaining the electronic device in the first mode or operating in a second mode. The antenna device includes: a first antenna; a second antenna; and a first switch electrically connecting or separating the first antenna and the second antenna. In the first mode, the first antenna and the second antenna are electrically separated from each other to operate. In the second mode, the first switch electrically connects the first antenna and the second antenna. The electrically connected first antenna and the second antenna are coupled to the auxiliary antenna to receive a signal of a predetermined frequency band.

Description

TECHNICAL FIELD [Method of operating wireless signal receiving system]

It relates to a method of operating a wireless signal receiving system.

Recently, portable electronic devices, including mobile phones and tablet PCs, tend to be equipped with a wireless power charging function along with various wireless communication functions. In this case, since the frequencies used for each wireless communication and wireless power charging are different according to 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 a combo form.

An object of the present invention is to provide a system in which a portable electronic device equipped with a plurality of combo-type antennas can receive an FM frequency or a disaster network frequency.

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

A method of operating a wireless signal receiving system according to an embodiment of the present invention for solving the above problem is a method of operating a wireless signal receiving system including an electronic device in which an antenna device is installed and a structure in which an auxiliary antenna is mounted. Operating a device in a first mode, recognizing the proximity of the structure by the electronic device, and maintaining the electronic device in a first mode or operating in a second mode, wherein the antenna device comprises: A first antenna, a second antenna, and a first switch for electrically connecting or separating the first antenna and the second antenna, and in the first mode, the first antenna and the second antenna are electrically connected to each other. Separately operated, in the second mode, the first switch electrically connects the first antenna and the second antenna, and the electrically connected first antenna and the second antenna are coupled to the auxiliary antenna It is ringed to receive a signal of a predetermined frequency band.

The antenna device further includes a receiving circuit for receiving and processing a signal of the predetermined frequency band, wherein the first antenna and the second antenna are loop-type antennas, and in the second mode,

The first switch may electrically connect one end of the first antenna and one end of the second antenna, and the other end of the first switch and the other end of the second antenna may be connected to the receiving circuit.

In the second mode, the first antenna and the second antenna may be connected in series.

The antenna device further includes a third antenna and a second switch electrically connecting or disconnecting the second antenna and the third antenna, and in the second mode, the second switch A third antenna is electrically connected, and the electrically connected first antenna, the second antenna, and the third antenna are coupled with an auxiliary antenna located outside the electronic device to receive a signal of the predetermined frequency band. I can.

The antenna device further includes a receiving circuit for receiving and processing a signal of the predetermined frequency band, wherein the first antenna, the second antenna, and the third antenna are antennas in a loop shape,

In the second mode, the first switch electrically connects one end of the first antenna and one end of the second antenna, and the second switch electrically connects the other end of the second antenna and one end of the third antenna. And the other end of the first antenna and the other end of the third antenna may be connected to the receiving circuit.

In the second mode, the first antenna, the second antenna, and the third antenna may be connected in series, respectively.

The electronic device may further include a housing surrounding at least a portion of the antenna device, and in the second mode, the first antenna and the second antenna may be positioned between the auxiliary antenna and the housing.

The first antenna and the second antenna may be disposed to directly contact the inside of the housing.

The structure may be in the form of a card.

The predetermined frequency band may be an FM frequency band.

One of the first antenna and the second antenna may be an NFC antenna, and the other may be an antenna for wireless power transmission.

In the step of recognizing the proximity of the structure, the electronic device recognizes the structure when the mutual distance is within 10 cm, and when the electronic device recognizes the proximity of the structure, operating in the second mode. I can go over it.

The structure may further include an NFC module allowing the electronic device to recognize proximity.

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

According to embodiments of the present invention, a portable electronic device including a plurality of combo-type antennas may receive an FM frequency or a disaster network frequency.

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

1 is a perspective view showing a wireless signal reception system according to an embodiment.
2 is a front reference and a rear reference perspective view of a smartphone according to an embodiment.
3 is a cross-sectional view taken along the line I?-I' of FIG. 2.
4 is a schematic layout plan view of a card according to an exemplary embodiment.
5 is a schematic cross-sectional view of a card according to an embodiment.
6 is an algorithm flow diagram illustrating a method of operating an antenna device according to an embodiment.
7 is a block diagram schematically illustrating states of combo antenna units of a smartphone when the antenna device is in a first mode according to an embodiment.
8 is a block diagram schematically illustrating states of a combo antenna unit and a card of a smart phone when the antenna device is in a second mode according to an embodiment.
9 is a block diagram schematically illustrating states of combo antenna units of a smartphone when the antenna device is in a first mode according to an embodiment.
10 is a block diagram schematically illustrating states of a combo antenna unit and a card of a smart phone when the antenna device is in a second mode according to an exemplary embodiment.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms different from each other, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have it, and the invention is only defined by the scope of the claims.

Although the first, second, and the like are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are only used to distinguish one component from another component. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical idea of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In addition, terms such as "comprises" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features or numbers, The possibility of the presence or addition of steps, actions, components, parts, or combinations thereof is not precluded.

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 showing a wireless signal reception system according to an embodiment.

Referring to FIG. 1, a system for receiving a wireless signal includes an electronic device and a structure. Electronic devices and structures can be independently configured.

Hereinafter, the smartphone 10 will be described as an electronic device. However, the present invention is not limited thereto, and may be implemented in the form of a notebook, a monitor, a TV, a mobile phone, an MP3 player, a medical measurement device, and various smart devices including a wearable device and an HMD, unless the idea of the invention is changed.

In addition, the card 20 will be described as an example as a structure. For example, an embodiment of the card 20 may include an identification card, a cash debit card, a credit card, a transportation card, and a membership card. The card 20 is exemplified as having a rectangular shape including rounded corners in a general card-shaped shape, but is not limited to the shape.

The smart phone 10 close to the card 20 within a certain distance L may receive a signal of a specific frequency band. In some embodiments, the smartphone 10 may not be able to receive signals of the specific frequency band alone. At this time, when the card 20 on which the antenna is mounted and the smartphone 10 are close within a certain distance L, at least some antennas in the smartphone 10 are electrically coupled to at least some antennas in the card 20 ( Since it is canned and can act as a new antenna, the smartphone 10 can receive a signal of the specific frequency band.

Hereinafter, the smartphone 10 will be described with reference to FIGS. 2 and 3.

2 is a front reference and a rear reference perspective view of a smartphone according to an embodiment. 3 is a cross-sectional view taken along line I-I' of FIG. 2.

2 and 3, the smartphone 10 includes a first surface 10a, a second surface 10b, and an edge surface 10c.

In one embodiment, the first surface 10a may be the front surface of the smartphone 10. The first surface 10a 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, but is defined as an area in which an image is not displayed.

The second surface 10b is a surface facing the first surface 10a and may be the rear surface of the smartphone 10. In an embodiment, the second surface 10b may include only the non-display area NDA, but is not limited thereto. The second surface 10b includes at least a portion of the area of the smartphone 10 that allows the smartphone 10 to normally receive a disaster network when the card 20 is located close to the smartphone 10. .

The rim surface 10c is a surface connecting the first surface 10a and the second surface 10b. The width of the border surface 10c may define the thickness of the smartphone 10.

The smartphone 10 includes several parts and a receptor for receiving the parts. The receptor may surround the inside of the smartphone 10. For example, the various components may include a display unit 400, a combo antenna unit 200, and a processor 300. The receptor includes a housing 100 and a cover window 500. That is, the housing 100 may surround a part of the display unit 400, the combo antenna unit 200, and the processor 300, and the cover window 500 may surround the remaining part.

The housing 100 may constitute a second surface 10b and a third surface of the smartphone 10. In an embodiment, the housing 100 corresponding to the second surface 10b and the housing 100 corresponding to the edge surface 10c may be integrally configured, but are not limited thereto. In another embodiment, the housing 100 corresponding to the second surface 10b and the housing 100 corresponding to the edge surface 10c may be configured separately, and at this time, the housing corresponding to the second surface 10b ( The housing 100 corresponding to the 100 and the edge surface 10c may include the same material or different materials.

The cover window 500 may constitute the first surface 10a of the smartphone 10. The cover window 500 may be a place where an input means such as a user's finger comes into contact. The cover window 500 may protect various parts of the smartphone 10 from external scratches.

The combo antenna unit 200 may be disposed adjacent to the inside of the smartphone 10 from the housing 100. In one embodiment, the combo antenna unit 200 may be disposed to be in contact with the inner surface of the housing 100. However, the present invention is not limited thereto, and other elements may be interposed between the combo antenna unit 200 and the housing 100 in another embodiment.

The combo antenna unit 200 may be an antenna device including a plurality of antennas. This will be described in detail later. In the present specification, the combo antenna unit 200 and the antenna device refer to the same components, and terms are used interchangeably for convenience of description.

The processor 300 may be disposed on one side of the combo antenna unit 200. The processor 300 is one of a central processing unit (CPU), an application processor (AP), a graphics processing unit (GPU), an image signal processor (ISP) of a camera, or a communication processor (CP). It can include more than that.

For example, the processor 300 may control at least one other component (eg, hardware or software component) of the smartphone 10 connected to the processor 300 by driving an operating system or application program, Various data processing and operations can be performed. The processor 300 may load and process a command or data received from at least one of other components (eg, a communication module) into a memory, and store result data in the memory.

In the drawing, the processor 300 is shown to be disposed on one side of the combo antenna unit 200, but is not limited thereto. The processor 300 may be disposed at various locations inside the smartphone 10.

The display unit 400 may be disposed adjacent to the inside of the smartphone 10 from the cover window 500. The display unit 400 may be adhered to the cover window 500 through an optically clear adhesive (OCA) or an optically clear resin (OCR). The display unit 400 and the cover window 500 may constitute a display panel. The display unit 400 may be a display unit 400 of an organic light emitting display panel, a liquid crystal display panel, a field emission display panel, an electrophoretic display panel, a quantum dot emission display panel, or a micro LED display panel.

Hereinafter, the card 20 will be described with reference to FIGS. 4 and 5.

4 is a schematic layout plan view of a card according to an exemplary embodiment. 5 is a schematic cross-sectional view of a card according to an embodiment.

4 and 5, the card 20 includes an auxiliary antenna 621, an NFC module 640, a first cover 601 and a second cover 602. Although not shown, in some embodiments, the card 20 may further include a marknetic line and/or an IC chip formed on the outer surface of the first cover 601 or the second cover 602, but is limited thereto. It is not.

The auxiliary antenna 621 may be disposed on the inner surface of the first cover 601. In one embodiment, the auxiliary antenna 621 may be an auxiliary antenna of an antenna device installed in the smartphone 10. The auxiliary antenna 621 may be formed in a printed pattern or attached to the inner surface of the first cover 601.

Although not clearly shown, the auxiliary antenna 621 may be a loop antenna composed of a conductive coil in one embodiment. The auxiliary antenna 621 may be formed of a flat coil wound in a loop shape.

In some embodiments, a separate element for controlling the auxiliary antenna 621 in the card 20 may not be included. In this case, the auxiliary antenna 621 may not serve to receive a specific signal. However, the wireless signal receiving system 1 according to the present invention is not limited to the above-described embodiment, and the card 20 may include a separate element for controlling the auxiliary antenna 621.

In one embodiment, the auxiliary antenna 621 may be coupled to an external antenna (Coupling, Cant in the drawing). The auxiliary antenna 621 may be coupled with an external antenna to receive a signal of a predetermined first frequency band. For example, the first frequency band may be a disaster network frequency band or an FM frequency band. The FM frequency band may be 80Mhz to 108Mhz. In some embodiments, the disaster network frequency band may be 650 Mhz to 850 Mhz. However, the disaster network frequency band is not limited thereto, and may be various disaster network frequency bands according to countries or regions.

The NFC module 640 may be disposed on the inner surface of the first cover 601.

The NFC module 640 may exchange signals with an NFC antenna installed on the smartphone 10 using NFC technology. Here, NFC refers to a non-contact communication technology using a frequency band of 13.56 MHz as one of RFID (radio frequency identification) methods. The operating modes of NFC may include a card emulation mode, a reader/writer mode, and a peer to peer (P2P) mode.

Card emulation mode is a mode in which an NFC tag or an NFC device with a built-in NFC IC operates like an NFC tag, and in the reader/writer mode, the NFC device operates as a reader to read another NFC tag or inputs information to another NFC tag. It is a mode that supports a function of operating as a writer, and the P2P mode is a mode that supports communication at a link level between two NFC devices.

In one embodiment, the NFC module 640 is in a state in which the smartphone 10 can receive the first frequency when the card 20 is close to the smartphone 10 within a certain distance (L) (e.g., mode 2(10-2)). That is, while the smart phone 10 is operating in the first mode (10-1), when the card 20 approaches the smart phone 10, the NFC module 640 of the card 20 is recognized and the second It can be operated by changing to mode (10-2).

The first cover 601 and the second cover 602 may be disposed with the auxiliary antenna 621 and the NFC module 640 interposed therebetween. The first cover 601 and the second cover 602 may each include a surface in contact with each other and a surface in contact with the auxiliary antenna 621 and the NFC module 640. However, in some embodiments, the first cover 601 and the second cover 602 may be adhered to each other by an adhesive member, and may be adhered to the auxiliary antenna 621 and the NFC module 640 and the adhesive member. In this case, an adhesive member may be further included between the first cover 601 and the second cover 602.

Although not clearly shown, the card 20 may further include a laminate material including a polymer material so as to contact the outer surfaces of the first cover 601 and the second cover 602.

Hereinafter, an operation principle of the antenna device will be described with reference to FIGS. 6 to 8.

6 is an algorithm flow diagram illustrating a method of operating an antenna device according to an embodiment. 7 is a block diagram schematically illustrating states of combo antenna units of a smartphone when the antenna device is in a first mode according to an embodiment. 8 is a block diagram schematically illustrating states of a combo antenna unit and a card of a smart phone when the antenna device is in a second mode according to an embodiment.

Referring to FIG. 6, the smartphone 10 may perform a first mode operation step S310 or a second mode operation step S320 depending on whether the card 20 is in proximity.

The antenna device is a first mode operation step (S100) of the smartphone 10, a card proximity recognition step (S200), a second mode operation step (S310) or a first mode maintenance step (S320) depending on whether or not the card proximity is recognized. It may include.

First, the first mode operation step (S100) will be described. The first mode operation step (S100) corresponds to a step in which the smartphone 10 operates the first mode 10-1 before the card 20 approaches.

Before the card 20 approaches the antenna device, the smartphone 10 may perform the first mode operation step S100. For example, the first mode operation step S100 may include a WPT mode, an MST mode, or an NFC mode.

Next, the card proximity recognition step (S200) will be described. In the card proximity recognition step (S200), the smartphone 10 recognizes the proximity of the card 20 during the first mode operation step (S100), and whether to maintain the first mode 10-1 or the second mode 10 It corresponds to the step of deciding whether to operate -2).

On the other hand, the smartphone 10 can recognize the proximity of the card 20 when the card 20 approaches within a certain distance (L). The smartphone 10 may recognize the proximity of the NFC module 640 of the NFC antenna to the card 20.

However, in the drawings, the smartphone 10 is shown to operate sequentially with the card proximity recognition step (S200) and the first mode operation step (S100), but is not limited thereto. In another embodiment, in the card proximity recognition step S200, regardless of the presence or absence of the first mode operation step S100, the smartphone 10 may recognize the proximity of the card 20 to perform an operation. In addition, in the present specification, each step is described as being sequentially performed according to an algorithm flow chart, but unless the idea of the invention is changed, the order of each step is changed, some steps are omitted, or other steps are performed between each step. It is obvious that more can be included.

When the smart phone 10 recognizes the proximity of the card 20 in the card proximity recognition step S200, the smart phone 10 may perform the second mode operation step S310. In addition, if the smart phone 10 does not recognize the proximity of the card 20 in the card proximity recognition step S200, the smart phone 10 may perform the first mode maintenance step S320. Here, in the card proximity recognition step (S200), if the smartphone 10 does not recognize the proximity of the card 20, the first mode operation step (S100) and the first mode maintenance step (S320) are performed by the smartphone 10 It can be understood that the same operation is performed continuously without changing the contents of the operation. That is, the first mode operation step S100 and the first mode maintenance step S320 may be the same operation contents of the smartphone.

Hereinafter, with reference to FIGS. 7 and 8, the operation contents of the smartphone 10 will be described according to the first mode and the second mode.

To FIG. 7, the combo antenna unit 200 may include a first antenna 221, a second antenna 222, a control unit 210, and a first switch 231. In addition, the combo antenna unit 200 may include operation modes of a first mode 10-1 and a second mode 10-2.

The first antenna 221 and the second antenna 222 may be loop antennas composed of a conductive coil in one embodiment. For example, the first antenna 221 and the second antenna 222 may be formed of a flat coil wound in a loop shape. In some embodiments, the loop of the first antenna 221 may be disposed within the loop of the second antenna 222, but is not limited thereto.

The first antenna 221 may be an antenna that receives a signal in a second frequency band. The second antenna 222 may be an antenna that receives a signal in a third frequency band. The second frequency band and the third frequency band may be different frequency bands. In some embodiments, at least a portion of the range of the second frequency band and a portion of the range of the third frequency band may overlap. Alternatively, in some other embodiments, the range of the second frequency band and the range of the third frequency band may not overlap.

The first antenna 221 may be one of a wireless power transfer (WPT) antenna for wireless charging, a magnetic secure transmission (MST) antenna, a near field communication (NFC) antenna, and an RFID antenna. Here, when the first antenna 221 is a WPT antenna, the frequency band may be 100 kHz to 300 kHz, and in the case of the NFC antenna, the frequency band may be 10 MHz to 20 MHz.

One end of the first antenna 221 may be electrically connected to the first switch 231, and the other end of the first antenna 221 may be electrically connected to the control unit 210.

The terms'one end' and'the other end' as used herein are used to refer to a relative position indicating both ends of a linear material, but the positions of these are of course not limited by these terms. These locations are only used to distinguish one location from another.

The second antenna 222 may be one of the remaining antennas not selected as the first antenna 221 among antennas exemplified as the first antenna 221.

One end of the second antenna 222 may be electrically connected to the first switch 231, and the other end of the second antenna 222 may be electrically connected to the control unit 210.

For convenience of explanation, hereinafter, the first antenna 221 is a WPT antenna and the second antenna 222 is an NFC antenna, as an example, but embodiments are not limited thereto.

The controller 210 may be implemented in the processor 300 and have a function of processing signals and information for each mode according to a coded program. For example, the controller 210 receives an operation signal from the processor 300 and the first antenna 221 and the second antenna 222 operate in a first mode 10-1 or a second mode 10-2. ) Can be controlled to operate. In an embodiment, the controller 210 may be a receiving circuit connecting the processor 300, the first antenna 221, and the second antenna 222.

In addition, the controller 210 may control the impedance and operating frequency of the first antenna 221 and the second antenna 222. When the auxiliary antenna 621 is close to within a certain distance L and is coupled to the first antenna 221 and/or the second antenna 222, the control unit 210 performs a function of recognizing and controlling this. You can also do it.

In the drawings, the processor 300 and the control unit 210 are illustrated as being configured separately, but are not limited thereto. In another embodiment, the control unit 210 may be included in the processor 300.

The first switch 231 may change the connection between the first antenna 221, the second antenna 222, and the controller 210 according to each mode of the combo antenna unit 200 by the control unit 210.

Next, each mode will be described.

The combo antenna unit 200 may operate in a first mode 10-1 or a second mode 10-2.

The first mode 10-1 corresponds to a mode in which a communication module that can be independently performed by the smartphone 10 is operated in a wireless signal receiving system. The first mode (10-1) is a mode in which the smartphone 10 receives a wireless power signal using the first antenna 221 or a mode in which a short-range communication signal is received using the second antenna 222 I can. In an embodiment, a mode for receiving a wireless power signal and a mode for receiving a short range communication signal may be independently executed. For example, in some embodiments, a mode for receiving a wireless power signal and a mode for receiving a short-range communication signal may be executed at this time. In some other embodiments, a mode for receiving a wireless power signal and a mode for receiving a short range communication signal may be simultaneously executed.

In the first mode (10-1), the first switch 231 allows one end of the first antenna 221 to be electrically connected to the control unit 210, and one end of the second antenna 222 is the control unit 210 Can be electrically connected to. Accordingly, in the first mode 10-1, the first antenna 221 and the second antenna 222 may not be electrically connected without passing through the control unit 210.

In the second mode (10-2), in the wireless signal receiving system 1, the first antenna 221 and the second antenna 222 of the antenna device are coupled with the auxiliary antenna 621 to form one antenna. It corresponds to a mode in which the first frequency band can be received by making it operate.

The processor 300 recognizes that the card 20 approaches within a certain distance L of the smartphone 10 and transmits a command to the controller 210 to perform the second mode 10-2. That is, in one embodiment, without a separate input to the smartphone 10 so that the user's second mode 10-2 operates, the card 20 approaches within a certain distance L of the smartphone 10. Recognizing that, the second mode 10-2 may be operated. The controller 210 may control the first antenna 221, the second antenna 222, and the first switch 231 to perform the second mode 10-2.

In the second mode 10-2, the first switch 231 may allow one end of the first antenna 221 to be electrically connected to one end of the second antenna 222. That is, the other end of the first antenna 221 is electrically connected to the control unit 210, and the other end of the first antenna 221 is electrically connected to one end of the second antenna 222, The other end is electrically connected to the controller 210, so that the first antenna 221 and the second antenna 222 are connected in series together with the controller 210 to operate as a new loop antenna.

In the second mode (10-2), when the smartphone 10 and the card 20 are close within a certain distance L, the first antenna 221 and the second antenna 222 mounted on the smartphone 10 ) And the auxiliary antenna 621 mounted on the card 20 may be coupled (Cant) with the housing 100 interposed therebetween. In the present specification, the term within a certain distance (L) may mean a distance of about 10 cm or less or a case of contact.

On the other hand, when the controller 210 of the smartphone 10 receives a command to perform the second mode 10-2, the first antenna 221 and the second antenna 222 are connected to the above-described new loop antenna. The first switch 231 is operated to operate as, and the proximity of the card 20 is checked. When the card 20 is close, the first antenna 221 and the second antenna 222 may be coupled with the auxiliary antenna 621, and the controller 210 may recognize this. When the controller 210 recognizes that the first antenna 221 and the second antenna 222 are coupled to the first antenna, the processor 300 determines whether the smartphone 10 is in a disaster network frequency reception mode or FM frequency reception mode can be performed.

Next, an antenna device according to another embodiment will be described. Hereinafter, descriptions of the same elements in FIGS. 1 to 7 and in the drawings are omitted, and the same or similar reference numerals are used.

9 is a block diagram schematically illustrating states of combo antenna units of a smartphone when the antenna device is in a first mode according to an embodiment. 10 is a block diagram schematically illustrating states of a combo antenna unit and a card of a smart phone when the antenna device is in a second mode according to an exemplary embodiment.

In the antenna device according to the present embodiment, compared to the antenna device according to the embodiments of FIGS. 7 and 8, the combo antenna unit 200-2 further includes a third antenna 223 and a second switch 232. There is a difference.

One end of the second antenna 222 may be electrically connected to the first switch 231, and the other end may be connected to the second switch 232.

The third antenna 223 may be a loop antenna formed of a conductive coil in one embodiment. For example, the third antenna 223 may be formed of a flat coil wound in a loop shape. In some embodiments, the loop of the third antenna 223 may be disposed within the loop of the first antenna 221 and/or the second antenna 222, but is not limited thereto.

The third antenna 223 may be one of the remaining antennas not selected as the first antenna 221 and the second antenna 222 among antennas exemplified as the first antenna 221 in the previous embodiment.

For convenience of explanation, hereinafter, the first antenna 221 is a WPT antenna, the second antenna 222 is an NFC antenna, and the third antenna 223 is an MST antenna, as an example, but embodiments are limited thereto. It does not become.

The controller 210 may be implemented in the processor 300 and have a function of processing signals and information for each mode according to a coded program. For example, the controller 210 receives an operation signal from the processor 300 and the first antenna 221, the second antenna 222, and the third antenna 223 operate in the first mode (11-1), or It can be controlled to operate in the second mode 11-2.

In addition, the controller 210 may control the impedance and the operating frequency of the third antenna 223. When the auxiliary antenna 621 is close to within a certain distance L and is coupled to the first antenna 221, the second antenna 222 and/or the third antenna 223, It can also perform the function of recognizing and controlling this.

The second switch 232 can change the connection of the second antenna 222, the third antenna 223, and the control unit 210 by the control unit 210 according to each mode of the combo antenna unit 200-2. have. In one embodiment, the first switch 231 and the second switch 232 may operate simultaneously according to a mode change, but are not limited thereto.

The first mode (11-1) is a mode in which the smartphone 10 receives a wireless power signal using the first antenna 221, or a mode in which a short-range communication signal is received using the second antenna 222 , It may be in a magnetic secure transmission (eg, wireless credit payment) mode using the third antenna 223. In one embodiment, a mode for receiving a wireless power signal, a mode for receiving a short-range communication signal, and a magnetic secure transmission mode may be independently executed. For example, in some embodiments, a mode for receiving a wireless power signal, a mode for receiving a short-range communication signal, and a magnetic secure transmission mode may all be executed at this time. In some other embodiments, at least two of a mode for receiving a wireless power signal, a mode for receiving a short-range communication signal, and a magnetic secure transmission mode may be simultaneously executed.

In the first mode (11-1), the first switch 231 allows one end of the first antenna 221 to be electrically connected to the control unit 210, and one end of the second antenna 222 is the control unit 210 Can be electrically connected to. In addition, the second switch 232 may allow the other end of the second antenna 222 to be electrically connected to the control unit 210, and the end of the third antenna 223 to be electrically connected to the control unit 210. Accordingly, in the first mode 11-1, the first antenna 221, the second antenna 222, and the third antenna 223 may not be electrically connected without passing through the control unit 210.

In the second mode (11-2), the antenna device operates as one antenna by coupling the first antenna 221, the second antenna 222, and the third antenna 223 to the auxiliary antenna 621 This corresponds to a mode in which the first frequency band can be received.

The processor 300 may transmit a command to the controller 210 to perform the second mode 11-2 according to a user's input. The controller 210 includes a first antenna 221, a second antenna 222, a third antenna 223, a first switch 231, and a second switch 232 to perform the second mode 11-2. Can be controlled.

In the second mode 11-2, the first switch 231 may enable one end of the first antenna 221 to be electrically connected to one end of the second antenna 222. Also, the second switch 232 may electrically connect the other end of the second antenna 222 and one end of the third antenna 223.

That is, the other end of the first antenna 221 is electrically connected to the control unit 210, and the other end of the first antenna 221 is electrically connected to one end of the second antenna 222, The other end is electrically connected to one end of the third antenna 223, and the other end of the third antenna 223 is electrically connected to the control unit 210, so that the first antenna 221, the second antenna 222, and the The 3 antenna 223 may be connected in series with the controller 210 to operate as a new loop antenna.

In the second mode (11-2), when the smartphone 10 and the card 20 are close within a certain distance L, the first antenna 221 and the second antenna 222 mounted on the smartphone 10 ) And the third antenna 223 and the auxiliary antenna 621 mounted on the card 20 may be coupled (Cant).

Meanwhile, when the controller 210 of the smartphone 10 receives a command to perform the second mode 11-2, the first antenna 221, the second antenna 222, and the third antenna 223 ) Operates the first switch 231 to operate as the above-described new loop antenna, and checks whether the card 20 is close. When the card 20 is close, the first antenna 221, the second antenna 222, and the third antenna 223 may be coupled to the auxiliary antenna 621, and the controller 210 I can recognize it. When the controller 210 recognizes that the first antenna 221, the second antenna 222, and the third antenna 223 are coupled to the auxiliary antenna 621, the processor 300 10) You can have this disaster network frequency reception mode or FM frequency reception mode.

Embodiments of the present invention have been described above with reference to the accompanying drawings, but those of ordinary skill in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. You can understand. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting.

1: wireless signal receiving system
10: smartphone
10a: first side
10b: second side
10c: border surface
10-1, 11-1: first mode
10-2, 11-2: second mode
20: card
100: housing
200, 200-1: combo antenna unit
210: control unit
221: first antenna
222: second antenna
223: third antenna
231: first switch
232: second switch
300: processor
400: display unit
500: cover window
621: auxiliary antenna
640: NFC module
Cant: coupling
DA: display area
L: constant distance
NDA: Non-display area
S100: first mode operation step
S200: Card proximity recognition step
S310: second mode operation step
S320: 1st mode maintenance step

Claims (13)

A method of operating a wireless signal reception system including an electronic device equipped with an antenna device and a structure equipped with an auxiliary antenna,
Operating the electronic device in a first mode;
Recognizing, by the electronic device, proximity of the structure; And
Maintaining the electronic device in a first mode or operating in a second mode,
The antenna device includes a first antenna, a second antenna, and a first switch electrically connecting or disconnecting the first antenna and the second antenna,
In the first mode, the first antenna and the second antenna are electrically separated from each other to operate,
In the second mode, the first switch electrically connects the first antenna and the second antenna, and the electrically connected first antenna and the second antenna are coupled to the auxiliary antenna to obtain a predetermined frequency. A method of operating a wireless signal reception system that receives signals in the band. The method of claim 1,
The antenna device further comprises a receiving circuit for receiving and processing the signal of the predetermined frequency band,
The first antenna and the second antenna are loop-shaped antennas,
In the second mode,
The first switch electrically connects one end of the first antenna and one end of the second antenna,
A method of operating a wireless signal receiving system in which the other end of the first switch and the other end of the second antenna are connected to the receiving circuit. The method of claim 1,
In the second mode,
A method of operating a wireless signal receiving system in which the first antenna and the second antenna are connected in series. The method of claim 1,
The antenna device,
A third antenna; And
Further comprising a second switch for electrically connecting or separating the second antenna and the third antenna,
In the second mode,
The second switch electrically connects the second antenna and the third antenna,
The method of operating a radio signal reception system in which the electrically connected first antenna, the second antenna, and the third antenna are coupled with an auxiliary antenna located outside the electronic device to receive a signal of the predetermined frequency band. The method of claim 4,
The antenna device further comprises a receiving circuit for receiving and processing the signal of the predetermined frequency band,
The first antenna, the second antenna, and the third antenna are loop-shaped antennas,
In the second mode,
The first switch electrically connects one end of the first antenna and one end of the second antenna,
The second switch electrically connects the other end of the second antenna and one end of the third antenna,
A method of operating a wireless signal reception system in which the other end of the first antenna and the other end of the third antenna are connected to the reception circuit. The method of claim 4,
In the second mode,
The first antenna, the second antenna, and the third antenna, respectively, a method of operating a wireless signal receiving system connected in series. The method of claim 1,
The electronic device further includes a housing surrounding at least a portion of the antenna device,
In the second mode,
The first antenna and the second antenna are a method of operating a radio signal receiving system positioned between the auxiliary antenna and the housing. The method of claim 1,
The first antenna and the second antenna are disposed to directly contact the inside of the housing. The method of claim 1,
The structure is a method of operating a wireless signal receiving system in a card form. The method of claim 1,
The predetermined frequency band is an FM frequency band, a method of operating a radio signal reception system. The method of claim 1,
Any one of the first antenna and the second antenna is an NFC antenna, and the other is a wireless power transmission antenna. The method of claim 1,
In the step of recognizing the proximity of the structure,
The electronic device recognizes the structure when the mutual distance is within 10 cm,
When the electronic device recognizes the proximity of the structure, the operation method of the wireless signal reception system proceeds to the step of operating in the second mode. The method of claim 12,
The structure is a method of operating a wireless signal receiving system further comprising an NFC module to allow the electronic device to recognize proximity.

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