KR101926615B1 - Combo antenna module and mobile electronic device having the same - Google Patents

Abstract

A combo antenna module and a portable electronic device including the same are provided. A combo antenna module according to an embodiment of the present invention includes an antenna unit including a circuit board and a plurality of antennas having different operating frequencies; And a switching unit for connecting or disconnecting at least two of the plurality of antennas according to an operation mode of the antenna unit. In this case, since the area of the antenna is increased without greatly changing the inductance, it is possible to improve the range and efficiency or performance of the wireless power charging or wireless communication, and it is unnecessary to separately provide additional internal patterns. The miniaturization of the module can be achieved and convenience and satisfaction of the user of the portable electronic device provided with the combo antenna module can be improved.

Description

[0001] Combo antenna module and mobile electronic device having same [0002]

The present invention relates to a combo antenna module, and more particularly, to a combo antenna module and a portable electronic device including the same, which can increase the wireless power charging or wireless communication range and improve the wireless power charging efficiency or the wireless communication performance according to the operation mode. ≪ / RTI >

2. Description of the Related Art Recently, portable electronic devices such as mobile phones, tablet PCs, and the like are equipped with various wireless communication functions and a wireless power charging function. At this time, since each wireless communication and wireless power charging uses different frequencies depending on each application, it is necessary to provide an antenna for each frequency or application. Therefore, the number of antennas provided in portable electronic devices is increasing.

For example, an NFC (Near Field Communication) or MST (Magnetic Secure Transmission) antenna for wireless communication and a Wireless Power Consortium (WPC), a Power Matters Alliance (PMA), or an Alliance for Wireless Power ) Antennas and the like, the antennas are being applied in the form of a combo (Combo).

Here, the WPC and PMA antennas perform wireless power charging in a magnetic induction manner that induces a current from one coil to another via a magnetic field. The A4WPC antenna transmits energy by coupling coils having the same resonance frequency to each other And performs wireless power charging in a self resonance manner.

At this time, the magnetic induction method is sensitive to the distance between the coils and the relative position, so that the transmission efficiency may drop sharply. In addition, the self-resonance system can charge wireless power even if the distance between the coils is not close, but there is a problem that the efficiency is low due to a large power loss, and electromagnetic waves are generated in a wide range.

Accordingly, recent portable electronic devices are adopting both a magnetic induction type and a self-resonance type so as to supplement the merits and demerits for the wireless power charging function and selectively use them as needed.

On the other hand, the inductance of the loop antenna is determined according to the communication frequency of each application and the wireless power charging frequency.

For example, in the case of an NFC antenna, an inductance of 1 to 2 μH is required to realize a frequency of 13.56 MHz, an inductance of 1 to 2 μH is required to implement a frequency of 6.78 MHz for an A4WP antenna, and a WPC or PMA antenna , An inductance of 6 to 12 μH is required to realize a frequency of 100 to 350 kHz, and an inductance of 10 to 40 μH is required for an MST antenna to realize a frequency of 100 kHz or less.

That is, a relatively low inductance is required because an NFC antenna or a self-resonating type A4WP antenna for wireless power is higher in frequency than an MST antenna or a WPC or PMA antenna for a magnetic induction type wireless power.

Here, a magnetic induction type wireless power charging (WPC, PMA) antenna is provided at the center of the antenna unit in consideration of the charging range, radio power strength and efficiency between the radio power transmitter Tx and the radio power receiver Rx . Particularly, in the case of a combo antenna, most of the WPC or PMA antenna is disposed at the center of the antenna unit, and the MST antenna is disposed at the outer periphery thereof.

In this case, the NFC or A4WP antenna having a relatively low inductance is disposed near the outer periphery of the combo antenna because its performance is better as the antenna area is larger. Such NFC or A4WP antennas are being utilized to increase the wireless communication or wireless power charging range, to improve the efficiency of wireless power charging, and to improve the performance of wireless communication, with additional patterns in the inner area of the antenna unit.

However, as described above, since the antenna such as WPC, PMA, and MST is located at the center of the antenna unit, it is difficult to implement additional patterns of the NFC and A4WP antennas in the combo antenna having a plurality of antennas Faced.

Therefore, it is inevitable to develop a technique capable of increasing the area of the NFC or A4WP antenna without affecting the antennas such as WPC, PMA, or MST disposed in the antenna unit.

KR 10-1126676 B

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a combo capable of improving the range, efficiency or performance of wireless power charging or wireless communication by utilizing antennas of different modes by switching according to the operation mode of the antenna unit And an object thereof is to provide an antenna module.

In addition, the present invention provides a wireless communication device having a wireless power charging function capable of improving the range, efficiency or performance of wireless power charging or wireless communication using two antennas by switching the combo antenna module by determining the operation mode of the antenna unit There is another purpose in providing a portable electronic device.

According to an aspect of the present invention, there is provided an antenna unit including a circuit board and a plurality of antennas having different operating frequencies. And a switching unit for connecting or disconnecting at least two of the plurality of antennas according to an operation mode of the antenna unit.

Also, the circuit board may be made of a flexible material.

The antenna unit may further include: a first antenna disposed at an outermost portion of the circuit board; A second antenna disposed on a center side of the circuit board; And at least one third antenna disposed between the first antenna and the second antenna.

The second antenna may have a lower operating frequency than the first antenna and an operating frequency higher than the third antenna.

Also, the first antenna may include any one of a wireless power antenna and an NFC antenna of a self resonance type, the second antenna may be a magnetic induction type wireless power antenna, and the third antenna may be an MST antenna .

The switching unit may connect at least one of the first antenna, the second antenna, and the third antenna in parallel when the antenna unit is in the operation mode using the first antenna.

The switching unit may connect at least one of the first antenna, the second antenna and the third antenna in parallel when the radio performance through the first antenna is lower than a reference value.

Also, the radio performance may be the intensity of the radio transmission or reception.

The switching unit may separate both the first antenna, the second antenna, and the third antenna when the antenna unit is in the operation mode in which the first antenna is not used.

The combo antenna module may further include a shielding unit disposed on one side of the antenna unit to induce a magnetic field.

In addition, the shielding unit may be any one of a ribbon sheet, a ferrite sheet and a polymer sheet of an amorphous alloy or a nano-crystal alloy.

Further, the ribbon sheet may be constituted by stacking a plurality of amorphous alloy or nano-crystal alloy ribbon sheets.

Further, the ferrite sheet may be made of MnZn ferrite or NiZn ferrite.

The amorphous alloy or the nano-crystal alloy includes a ternary alloy or a five-element alloy, and the ternary alloy includes Fe, Si and B, and the five-element alloy includes Fe, Si, B, Cu, and Nb .

In addition, the shielding unit may be separately formed into a plurality of minute pieces.

In addition, the plurality of microparts may be entirely insulated or partially insulated between neighboring microparts.

In addition, the plurality of fine pieces may have a size of 1 mu m to 3 mm.

In addition, the plurality of micro pieces may be irregular.

According to another aspect of the present invention, A plurality of wireless modules interlocked with the plurality of antennas, respectively; And a mode determiner for determining which one of the plurality of radio modules is operating and controlling the switching of the combo antenna module.

In addition, any one of the plurality of radio modules can transmit power wirelessly.

Also, any one of the plurality of wireless modules can receive power wirelessly.

Also, any one of the plurality of wireless modules can communicate wirelessly.

On the other hand, the present invention provides a combo antenna module comprising a circuit board, an antenna unit including a plurality of antennas having different operating frequencies, and a shielding unit disposed on one surface of the antenna unit to induce a magnetic field. A switching unit connecting or disconnecting at least two of the plurality of antennas according to an operation mode of the antenna unit; A plurality of wireless modules interlocked with the plurality of antennas, respectively; And a mode determiner for determining which one of the plurality of radio modules is operating and controlling the switching of the combo antenna module.

According to the present invention, since the antenna area is increased without changing the inductance by selectively connecting the antenna disposed outside and the antenna disposed inside by switching according to the operation mode of the antenna unit, the range of wireless power charging or wireless communication, And improve efficiency or performance.

In addition, the present invention can improve the range, efficiency or performance of wireless power charging or wireless communication without separately providing an additional internal pattern by connecting an antenna using a high frequency and an antenna using a low frequency in parallel, It is possible to achieve miniaturization of the combo antenna module.

Further, the combo antenna module of the present invention is provided in a portable electronic device, thereby improving the range and efficiency or performance of wireless power charging or wireless communication by switching according to an operation mode, thereby improving convenience and satisfaction of the user.

1 is a schematic view of a combo antenna module according to an embodiment of the present invention;
2 is a block diagram schematically showing an example of the operation state of the combo antenna module according to an embodiment of the present invention;
3 is a block diagram schematically illustrating another example of the operating state of the combo antenna module according to the embodiment of the present invention.
4 is an equivalent circuit diagram of Fig. 3,
5 is a perspective view schematically showing a combo antenna module according to an embodiment of the present invention,
6 is a cross-sectional view showing an example of the shielding unit of Fig. 5,
7 is a schematic block diagram of a portable electronic device according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same reference numerals are assigned to the same or similar components throughout the specification.

The combo antenna module 100 according to an embodiment of the present invention includes an antenna unit 110 and a switching unit 120, as shown in FIG.

The antenna unit 110 is for receiving a wireless signal from a portable electronic device such as a cellular phone, a PDA, a PMP, a tablet, a multimedia device, and the like. The antenna unit 110 includes a plurality of antennas, for example, a communication antenna having a different operating frequency and a plurality of antennas such as a wireless power antenna. The antenna unit 110 includes the circuit board 111, the first antenna 112, the second antenna 114, and the third antenna 116, as shown in FIGS. 1 and 5 .

The circuit board 111 is a base material having at least one antenna or an optional circuit portion formed on its upper surface. The circuit board 111 is a material having heat resistance, pressure resistance, and flexibility. Considering the physical properties of such a material, a film such as PI or PET, which is a thermosetting polymer film, may be employed as the circuit board 111. [ In particular, the polyimide film usually has a high temperature of 400 ° C or higher and a low temperature of-269 ° C. It has super heat resistance and ultra low cold resistance, and is not only thin and flexible, but also resistant to chemical and abrasion, Because.

In addition, a circuit unit (not shown) or a connection terminal for electrical connection with an electronic device is provided on one side of the circuit board 111 so as to correspond to the number of antennas.

The first antenna 112 may be disposed at an outermost portion of the circuit board 111. The first antenna 112 may have an operating frequency of more than several MHz.

At this time, the first antenna 112 may be a self-resonant wireless power antenna using 6.78 MHz and may be, for example, an A4WP antenna. Also, the first antenna 112 may be a communication antenna using 13.56 MHz and may be, for example, an NFC antenna.

The second antenna 114 may be disposed on the inner side of the first antenna 112 of the circuit board 111, particularly on the center side of the circuit board 111. The second antenna 114 may have an operating frequency lower than that of the first antenna 112 and higher than that of the third antenna 116 and may have an operating frequency of, for example, several hundred kHz.

In this case, the second antenna 114 may be a magnetic induction type wireless power antenna using a band of 100 to 350 kHz, for example, a WPC or a PMA antenna. In addition, the second antenna 114 may be a communication use, a radio reception or a radio transmission antenna using a band of 100 to 350 kHz.

The third antenna 116 may be disposed on the circuit board 111 between the first antenna 112 and the second antenna 114. The third antenna 116 has a lower operating frequency than the first antenna 112 and the first antenna 112 and may have an operating frequency of, for example, 100 kHz or lower.

At this time, the third antenna 116 may be a communication antenna using a bandwidth of 100 kHz or less, for example, an MST antenna. Also, the third antenna 116 may be a wireless power antenna using a bandwidth of 100 kHz or less.

Although the third antenna 116 is shown as one antenna disposed between the first antenna 112 and the second antenna 114, the present invention is not limited thereto. And may be a plurality of antennas disposed between the first antenna 112 disposed at the outermost side and the second antenna 114 disposed at the center side and having different operating frequencies from each other.

5, the first antenna 112, the second antenna 114, and the third antenna 116 may be circular, elliptical, spiral, or rectangular, which is wound clockwise or counterclockwise, Shape or a polygonal shape like a flat coil. Here, the first antenna 112 and the second antenna 114 may function as a receive coil (Rx coil) or a transmit coil (Tx coil) for wireless power charging.

Although not shown, when the plurality of antennas 112, 114, and 116 are all provided in the form of a plate-like coil, each of the connection terminals may be electrically connected directly to an external device without passing through the circuit board. In this case, since the circuit board does not need to be used, the use of the circuit board can be completely eliminated and the production cost can be further reduced.

The switching unit 120 connects or disconnects at least two of the plurality of antennas 112, 114, and 116 according to the operation mode of the antenna unit 110. In particular, the switching unit 120 may connect or disconnect at least one of the first antenna 112, the second antenna 114, and the third antenna 116. The switching unit 120 includes the first switch 122 and the second switch 124.

The first switch 122 is connected to one side of the first antenna 112, the second antenna 114, and the third antenna 116, respectively. The first switch 122 may include two common contacts C ₁₁ and C ₁₂ and three contacts S ₁₁ , S ₁₂ , and S ₁₃ 3. The common contact C ₁₁ is selectively connected to any one of the contacts S ₁₁ and S ₁₃ and the common contact C ₁₂ is selectively connected to any one of the contacts S ₁₂ and S ₁₃ . .

The common contact point C ₁₁ may be connected to one side of the second antenna 114 and the contact point S ₁₁ may be connected to a second wireless module 16 interlocking with the second antenna 114. have. Also, the common contact (C21) may be connected to the third wireless module 18 for connection to one side of the third antenna 116 and, in conjunction with the contact points (S ₁₂₎ is the third antenna (116) . The contact S ₁₃ may be connected to one side of the first antenna 112. That is, the contact point S ₁₃ may be connected to one side of the first antenna 112 and the first radio module 14 interlocked with the first antenna 112.

The second switch 124 is connected to the other side of the first antenna 112, the second antenna 114 and the third antenna 116, respectively. The second switch 124 may include two common contacts C ₂₁ and C ₂₂ and three contacts S ₂₁ , S ₂₂ and S ₂₃ , similar to the first switch 122 . Here, the common contact point (C ₂₁₎ can be connected to any one of the contact points (S _21, S _23), the contact (C ₂₂₎ can be connected selectively to one of the contact points (S _22, S ₂₃₎ have.

At this time, the common contact C ₂₁ is connected to the other side of the second antenna 114, and the contact S ₂₁ is connected to the second wireless module 16 interlocked with the second antenna 114 . The common contact C ₂₂ may be connected to the other end of the third antenna 116 and the contact S ₂₂ may be connected to a third wireless module 18 interlocked with the third antenna 116. The contact S ₂₃ may be connected to the other side of the first antenna 112. That is, the contact S ₂₃ may be connected to the other side of the first antenna 112 and the first wireless module 14 interlocked with the first antenna 112.

Here, when the switching unit 120 separates the first antenna 112, the second antenna 114, and the third antenna 116, the first antenna 112, the second antenna 114, The first antenna 114 and the third antenna 116 may operate individually.

For example, as shown in FIG. 2, the first switch 122 is connected such that the common contact C _{11 is} connected to the contact S ₁₁ , and the common contact C _{12 is} connected to the contact S ₁₂ ). The second switch 124 may be connected with the common contact (C ₂₁₎ is connected to the contact point (S _22), the common contact (C _22), wherein the contact point (S _22).

At this time, wireless power charging and wireless communication can be performed through either the second antenna 114 or the third antenna 116. For example, wireless power charging can be done in a self-induction manner, or MST communication can be done. In this case, the first antenna 112 does not operate because it has a frequency different from that of the second antenna 114 or the third antenna 116.

If the switching unit 120 connects at least one of the first antenna 112, the second antenna 114 and the third antenna 116, the second antenna 114, At least one of the third antennas 116 is connected in parallel with the first antenna 112 to function as a part of the first antenna 112.

For example, as shown in FIG. 3, the first switch 122 may be configured such that any one of the common contact C ₁₁ and the common contact C ₁₂ is connected to the contact S ₁₃ , The second switch 124 may be connected to either the common contact C ₂₁ or the common contact C ₂₂ with the contact S ₂₃ .

At this time, at least one of the first antenna 112, the second antenna 114 and the third antenna 116 may be connected in parallel to operate as one antenna. In this case, wireless power charging may be performed through the first antenna 112 in a self-resonant manner, or NFC communication may be performed.

Here, as shown in Figure 4, the inductance of the first antenna inductance (L _2), and the third antenna 116 of the inductance (L ₁₎ and the second antenna (114) of (112) (L ₃ , the total inductance L _total of the antenna due to the parallel connection of the antennas 112, 114, and 116 is expressed by Equation 1 below.

Here, n is the number of parallel connected antennas, and Fig. 4 is a case where n = 3.

For example, if the inductance L ₁ of the first antenna 112 is 2 μH, the inductance L ₂ of the second antenna 114 is 10 μH, and the inductance L ₃ The total inductance L _total by the parallel connection of the first antenna 112 and the second antenna 114 is 1.67 μH and the first antenna 112 and the third antenna 116 ) total inductance (L _total) by parallel connection of the 1.82μH, and the antenna (112 114 116) is the total inductance (L _total) 1.54μH by the parallel connection of both.

Therefore, since at least one of the first antenna 112, the second antenna 114, and the third antenna 116 is connected in parallel, the total inductance value does not change significantly, At least one of the second antenna 114 and the third antenna 116 may be additionally used.

As a result, the range of the antenna used for charging the wireless power of the self-resonance method is extended not only to the outermost portion of the circuit board 111 but also to the central portion of the circuit board 111, The range of wireless power charging or wireless communication can be widened, and wireless power charging or wireless communication can be performed over a wider range, so that the efficiency of wireless power charging or the performance of wireless communication can be improved.

In addition, by selectively using at least one of the second antenna 114 and the third antenna 116 disposed inside the first antenna 112 by switching, It is possible to improve the efficiency of wireless power charging or the performance of wireless communication, and accordingly, the combo antenna module 100 can be miniaturized with respect to the same efficiency / performance.

When the operation mode of the antenna unit 110 is the operation mode using the first antenna 112, the switching unit 120 may perform wireless power charging by, for example, self-resonance, At least one of the first antenna 112, the second antenna 114, and the third antenna 116 is connected to the first antenna 112 through the first antenna 112, They can be connected in parallel.

Alternatively, if the performance of the wireless power, the wireless communication, or the wireless through the first antenna 112 is lower than the reference value, the switching unit 120 may switch the first antenna 112, the second antenna 114, And at least one of the third antennas 116 may be connected in parallel. That is, the switching unit 120 does not switch unconditionally when the wireless power is charged by the self-resonance method, NFC communication is performed, wireless power is charged or the wireless communication is performed through the first antenna 112, It is possible to selectively operate only in a specific case such as when the efficiency / performance is equal to or lower than the reference value during the same operation. At this time, the performance of the radio may be the intensity of radio transmission or reception, for example, the intensity of transmission or reception of radio communication, or the intensity of transmission or reception of radio power.

When the operation mode of the antenna unit 110 is an operation mode in which the first antenna 112 is not used, the switching unit 120 may perform wireless power charging by, for example, a magnetic induction method, The first antenna 112 and the second antenna 114 may be connected to each other through the first antenna 112 and the second antenna 114. When MST communication is performed or wireless power charging or wireless communication is performed through either the second antenna 114 or the third antenna 116, And the third antenna 116 can be separated from each other.

At least one of the first antenna 112, the second antenna 114 and the third antenna 116 is connected in parallel. However, the present invention is not limited to this, The antennas may be connected in parallel.

The switching unit 120 may be provided separately from the antenna unit 110. The switching unit 120 may be provided separately from the antenna unit 110. For example, For example, when the combo antenna module 100 is applied to a portable electronic device, the switching unit 120 may be separated from the antenna unit 110 and disposed on the main circuit board.

5, the combo antenna module 100 may further include the shielding unit 130 disposed on one surface of the antenna unit 110 to induce a magnetic field.

The shielding unit 130 is formed of a plate-shaped member having a predetermined area, and the antenna unit 110 is fixed on one surface.

The shielding unit 130 enhances the characteristics of the antenna unit 110 operating in a predetermined frequency band by shielding the magnetic field generated from the antenna unit 110 to increase the magnetic field collection rate.

That is, when the wireless power is charged by the self-induction method in the frequency band of 100 to 350 kHz, the shielding unit 130 may transmit the MST of the frequency band of 100 kHz or less when the wireless power is charged by the self- In order to enhance the characteristics of the antenna unit 110 operating in the corresponding frequency band during NFC communication at the time of communication or 13.56 MHz.

The shielding unit 130 is made of a magnetic material so as to shield the magnetic field generated by the antenna unit 110.

The shielding unit 130 may be made of a material having a magnetic permeability ranging from 300 to 3500 Wb / Am when the antenna unit 110 operates in a frequency band of 100 to 350 kHz, which is a low frequency band, (110) operates at a frequency of 6.78 MHz, it may be made of a material having a permeability in the range of 100 to 350 Wb / Am.

For example, the shielding unit 130 may be a Mn-Zn ferrite sheet having a permeability in the range of 2000 to 3500 Wb / Am at 100 to 350 kHz, which is a low frequency band, a ribbon sheet or a polymer sheet of an amorphous alloy or a nano- have. The shielding unit 120 may be a Ni-Zn ferrite sheet, a ribbon sheet of an amorphous alloy or a nano-crystal alloy, or a polymer sheet having a permeability in the range of 300 to 1500 Wb / Am at 100 to 350 kHz, which is a low frequency band .

In addition, the shielding unit 130 may be a ribbon sheet or a polymer sheet of a Ni-Zn ferrite sheet, an amorphous alloy or a nano-crystal alloy having a magnetic permeability ranging from 100 to 350 Wb / A.m at 6.78 MHz.

Here, the amorphous alloy or the nano-crystal alloy may be a Fe-based or a Co-based magnetic alloy, and the amorphous alloy and the nano-crystal alloy may include a three-element alloy or a five-element alloy. For example, the three-element alloy may include Fe, Si, and B, and the five-element alloy may include Fe, Si, B, Cu, and Nb.

6, the shielding unit 130 'may include a plurality of amorphous alloy or nano-crystal alloy ribbon sheets 131a, 131b, and 131c stacked in layers of two or more layers .

In addition, the shielding unit 130 may be formed as a plurality of micro-pieces so as to suppress the generation of eddy currents, and the plurality of micro-pieces may be entirely insulated or partially insulated from each other between neighboring micro- have.

At this time, the plurality of fine pieces may be formed to have a size of 1 to 3 mm, and each piece may be irregularly randomized.

When a plurality of sheets 131a, 131b and 131c formed by finely dividing the shielding unit 130 'are laminated, an adhesive layer 131d made of a nonconductive material is disposed between the sheets, The adhesive layer 121d may serve to insulate a plurality of microparts constituting each sheet by allowing the adhesive layer 121d to permeate between the stacked pair of sheets. Here, the adhesive layer 131d may be provided as an adhesive or may be provided on one side or both sides of a substrate in the form of a film with an adhesive applied thereto.

At this time, the shielding unit 130 or 130 'may be provided with a separate protective film (not shown) on at least one surface of the upper surface and the lower surface. The protective film (not shown) is attached to the shielding unit 130 through the adhesive layer, thereby absorbing the minute pieces when the shielding units 130 and 130 'are separated into fine pieces. It can also be done. In addition, the adhesive layer may be provided as an adhesive or in the form of a film-like substrate and a protective film coated with an adhesive on one or both sides of the substrate.

The combo antenna module 100 according to an embodiment of the present invention can be applied to the portable electronic device 10. [

7, the portable electronic device 10 according to an embodiment of the present invention includes a combo antenna module 100, and includes a mode determination unit 12, a plurality of wireless modules 14 and 16 , 18).

The mode determination unit 12 determines which module of the plurality of radio modules 14, 16, 18 is operating and controls the switching of the combo antenna module 100. At this time, the mode determiner 12 may determine the operation state based on the strength of the radio received through each antenna of the combo antenna module 100, for example.

Alternatively, the mode determination unit 12 may determine a condition for switching only in a specific case, without unconditionally switching the switching unit 120 according to the operation modes of the plurality of radio modules 14, 16, can do.

For example, when the portable electronic device 10 is charged with radio power by the self-resonance method through the first antenna 112 disposed at the outermost portion of the circuit board 111, The first antenna 112, the second antenna 114 and the third antenna 116 are connected to each other in order to improve efficiency or to improve performance when radio performance is below a reference value during NFC communication. The switching unit 120 may be switched so that at least one of the switching units 120 and 130 may be connected in parallel.

At this time, the mode determination unit 12 may determine a specific condition for switching the switching unit 120. [ For example, the mode determination unit 12 may determine whether the radio performance is less than a reference value according to the strength of radio transmission or reception. That is, the mode determination unit 12 can determine the wireless performance according to the strength of transmission or reception of wireless communication, or the strength of transmission or reception of wireless power.

The mode determiner 12 may determine various conditions for switching the combo antenna module 100, and the embodiment of the present invention is not particularly limited to the type or method of the determination condition.

The plurality of wireless modules may include the first wireless module 14, the second wireless module 16, and the third wireless module 18.

The first wireless module 14 performs wireless power charging in a self-resonant manner in conjunction with the first antenna 112 or performs NFC communication. That is, the first wireless module 14 can transmit or receive power wirelessly. For example, the first wireless module 14 may include any one or both of a wireless power transmission module and a wireless power reception module. Also, the first wireless module 14 may communicate, receive, or transmit wirelessly, and may include, for example, any one or both of a wireless transmission module and a wireless transmission module.

The second wireless module 16 performs wireless communication with the second antenna 114 by performing a wireless charging or a magnetic induction method in cooperation with the second antenna 114. That is, the second wireless module 16 can transmit or receive power wirelessly. For example, the second wireless module 16 may include any one or both of a wireless power transmission module and a wireless power reception module. Also, the first wireless module 14 may communicate, receive, or transmit wirelessly, and may include, for example, any one or both of a wireless transmission module and a wireless transmission module.

The third wireless module 18 performs MST communication with the third antenna 116 or performs wireless power charging. That is, the third wireless module 18 may communicate, receive, or transmit wirelessly, and may include, for example, any one or both of a wireless transmission module and a wireless transmission module. Also, the third wireless module 18 may transmit or receive power wirelessly, and may include any one or both of a wireless power transmission module and a wireless power reception module, for example.

In this case, when the first wireless module 14, the second wireless module 16, and the third wireless module 18 function as a wireless power transmission module, the DC power supplied from the power source of the portable electronic device 10 And an inverter (not shown) for converting the power source to AC power and providing the power to the first antenna 112 and the second antenna 114.

When the first wireless module 14, the second wireless module 16 and the third wireless module 18 function as a wireless power receiving module, the first antenna 112 and the second antenna (Not shown) for converting the radio power received from the power supply 114 to DC power and a DC-DC converter (not shown) for converting it into a battery suitable for use as a battery or internal power source of the portable electronic device 10, . ≪ / RTI >

In addition, when the first wireless module 14, the second wireless module 16, and the third wireless module 18 function as both the wireless power receiving module and the wireless power transmitting module, (Not shown), a rectifier (not shown), and a DC-DC converter (not shown).

When the first radio module 14, the second radio module 16, and the third radio module 18 function as a radio transmission module, the first radio module 14, the second radio module 16, (Not shown).

When the first wireless module 14, the second wireless module 16, and the third wireless module 18 function as a wireless receiving module, the first wireless module 14, the second wireless module 16, and the third wireless module 18 receive the original signal And a modulation unit (not shown) for extraction.

In addition, when the first wireless module 14, the second wireless module 16, and the third wireless module 18 function as both the wireless receiving module and the wireless transmitting module, the demodulating unit And a modulation unit (not shown).

By providing the combo antenna module 100 according to the embodiment of the present invention in the portable electronic device 10, it is possible to improve the range, efficiency and performance of wireless power charging or wireless communication by switching according to the operation mode Thereby improving the convenience and satisfaction of the user of the portable electronic device 10.

The switching unit 120 may be provided separately from the antenna unit 110. The switching unit 120 may be provided separately from the antenna unit 110. For example, have. For example, when the combo antenna module 100 is applied to a portable electronic device, the switching unit 120 may be separated from the antenna unit 110 and disposed on the main circuit board.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: portable electronic device 12: mode determination unit
14: first wireless module 16: second wireless module
18: Third wireless module 100: Combo antenna module
110: antenna unit 111: circuit board
112: first antenna 114: second antenna
116: Third antenna 120:
122: first switch 124: second switch
130,130 ': Shielding unit
131a, 131b, 133c: ribbon sheet of amorphous alloy or nano-crystal alloy
131d:

Claims (23)

An antenna unit comprising a circuit board and a plurality of antennas having different operating frequencies; And
And a switching unit for connecting or disconnecting at least two of the plurality of antennas according to an operation mode of the antenna unit,
The antenna unit comprising a first antenna having a first inductance, a second antenna having a second inductance greater than the first inductance, and at least one third antenna having a third inductance between the first inductance and the second inductance, Lt; / RTI >
Wherein at least one of the first antenna, the second antenna and the third antenna is connected in parallel when the antenna unit is in the operation mode using the first antenna. The method according to claim 1,
Wherein the circuit board is made of a flexible material. The method according to claim 1,
Wherein the first antenna is disposed at an outermost portion of the circuit board,
The second antenna is disposed on the center side of the circuit board,
Wherein the third antenna comprises at least one antenna disposed between the first antenna and the second antenna. The method of claim 3,
Wherein the second antenna has a lower operating frequency than the first antenna and a higher operating frequency than the third antenna. The method of claim 3,
Wherein the first antenna includes one of a radio power antenna and an NFC antenna of a self resonance type,
The second antenna is a wireless power antenna of a magnetic induction type,
And the third antenna is an MST antenna. delete The method according to claim 1,
Wherein the switching unit connects at least one of the first antenna, the second antenna and the third antenna in parallel when the radio performance through the first antenna is lower than a reference value. 8. The method of claim 7,
Wherein the radio performance is the intensity of the radio transmission or reception. The method of claim 3,
Wherein the switching unit separates both the first antenna, the second antenna, and the third antenna when the antenna unit is in the operation mode in which the first antenna is not used. The method according to claim 1,
And a shielding unit disposed on one surface of the antenna unit to induce a magnetic field. 11. The method of claim 10,
Wherein the shielding unit is one of a ribbon sheet of an amorphous alloy or a nano-crystal alloy, a ferrite sheet and a polymer sheet. 12. The method of claim 11,
Wherein the ribbon sheet is formed by stacking a plurality of ribbon sheets of amorphous alloy or nano-crystal alloy. 12. The method of claim 11,
Wherein the ferrite sheet is made of MnZn ferrite or NiZn ferrite. 12. The method of claim 11,
The amorphous alloy or the nanocrystalline alloy includes a three-element alloy or a five-element alloy,
Wherein the ternary alloy comprises Fe, Si and B,
Wherein the five element alloy comprises Fe, Si, B, Cu and Nb. 11. The method of claim 10,
Wherein the shielding unit is divided into a plurality of minute pieces. 16. The method of claim 15,
Wherein the plurality of microparts are entirely insulated or partially insulated between neighboring microparts. 16. The method of claim 15,
Wherein the plurality of micro pieces are 1 mu m to 3 mm in size. 16. The method of claim 15,
And the plurality of minute pieces are formed at an irregular shape. The combo antenna module according to any one of claims 1 to 5 and 7 to 18;
A plurality of wireless modules interlocked with the plurality of antennas, respectively; And
And a mode determiner for determining which one of the plurality of radio modules is operating and controlling switching of the combo antenna module. 20. The method of claim 19,
Wherein one of said plurality of wireless modules transmits power wirelessly. 20. The method of claim 19,
Wherein one of said plurality of wireless modules receives power wirelessly. 20. The method of claim 19,
Wherein any one of said plurality of wireless modules communicates wirelessly. A combo antenna module comprising: a circuit board; an antenna unit including a plurality of antennas having different operating frequencies; and a shielding unit disposed on one surface of the antenna unit to induce a magnetic field;
A switching unit connecting or disconnecting at least two of the plurality of antennas according to an operation mode of the antenna unit;
A plurality of wireless modules interlocked with the plurality of antennas, respectively; And
And a mode determiner for determining which one of the plurality of radio modules is operating and controlling the switching of the combo antenna module,
The antenna unit comprising a first antenna having a first inductance, a second antenna having a second inductance greater than the first inductance, and at least one third antenna having a third inductance between the first inductance and the second inductance, Lt; / RTI >
And at least one of the first antenna, the second antenna and the third antenna is connected in parallel when the antenna unit is in the operation mode using the first antenna.

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