KR101888353B1 - Combo antenna module and mobile electronic device having the same - Google Patents

Combo antenna module and mobile electronic device having the same Download PDF

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Publication number
KR101888353B1
KR101888353B1 KR1020150102443A KR20150102443A KR101888353B1 KR 101888353 B1 KR101888353 B1 KR 101888353B1 KR 1020150102443 A KR1020150102443 A KR 1020150102443A KR 20150102443 A KR20150102443 A KR 20150102443A KR 101888353 B1 KR101888353 B1 KR 101888353B1
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KR
South Korea
Prior art keywords
antenna
wireless power
module
capacitor
unit
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Application number
KR1020150102443A
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Korean (ko)
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KR20170010600A (en
Inventor
노진원
백형일
박재일
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주식회사 아모텍
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Application filed by 주식회사 아모텍 filed Critical 주식회사 아모텍
Priority to KR1020150102443A priority Critical patent/KR101888353B1/en
Priority to PCT/KR2016/007495 priority patent/WO2017014467A1/en
Priority to US15/745,731 priority patent/US10931151B2/en
Priority to CN201680053099.9A priority patent/CN108140476B/en
Publication of KR20170010600A publication Critical patent/KR20170010600A/en
Application granted granted Critical
Publication of KR101888353B1 publication Critical patent/KR101888353B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H01Q9/27—Spiral antennas

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)

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, a first antenna for wireless power, and a second antenna for wireless power in a manner different from the first antenna; And a switch which is disposed between the first capacitor and the second capacitor and is opened or closed according to an operation mode of the antenna unit, The second antenna and the second capacitor form a closed loop coupling with the first antenna. According to this, since a separate resonance circuit is additionally formed and coupled to the antenna, it is possible to improve the range and efficiency of wireless power charging, and it is not necessary to separately provide an additional internal pattern, thereby miniaturizing the combo antenna module having a plurality of antennas And the convenience and satisfaction of the user of the portable electronic device having 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 that can expand the wireless power charging range and improve the efficiency according to the operation mode.

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.

Generally, the wireless power charging function employs a magnetic induction method in which a current is induced from one coil to another through a magnetic field. However, such a magnetic induction method is very sensitive to the distance between the coils and the relative position thereof, so that there is a problem that the transmission efficiency drops sharply even if the distance between the two coils is slightly reduced or deviated.

In recent years, a self-resonance method of transmitting energy by coupling coils having the same resonance frequency has been additionally used. Such a self resonance method has an advantage that the radio power can be charged even if the two coils are not close to each other. However, such a self-resonance method has 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.

As described above, the antenna used for wireless power charging, such as a wireless power consortium (WPC) or a power matters alliance (WMA) antenna for wireless power and a self-resonant type A4WP (Alliance for Wireless Power) antenna for wireless power, As the number of antennas increases, the wireless power antennas are being applied in a combo form.

Meanwhile, the inductance of the loop antenna is determined according to the wireless power charging frequency according to the wireless power scheme.

For example, in the case of a self-resonating type A4WP antenna for wireless power, an inductance of 1 to 2 μH is required to realize a frequency of 6.78 MHz, and in the case of a magnetic induction type WPC or PMA antenna for a wireless power, An inductance of 6 to 12 μH is required to implement the frequency.

That is, the self-resonant type A4WP antenna for wireless power requires a relatively low inductance because the frequency is higher than that of the WPC and PMA antennas for wireless power use of the magnetic induction type.

Here, the magnetic induction type wireless power (WPC, PMA) antenna is arranged in the center of the antenna unit in consideration of the charging range between the wireless power transmitter Tx and the wireless power receiver Rx, . In particular, in the case of a combo antenna, most WPC or PMA antennas are disposed at the center of the antenna unit.

In this case, the A4WP antenna having a relatively low inductance is disposed near the outer periphery of the combo antenna because the antenna area is larger as the performance is better. Such an A4WP antenna utilizes a technique of providing an additional pattern in the inner area of the antenna unit to increase the wireless power charging range and improve the efficiency of wireless power charging.

However, in the combo antenna having a plurality of antennas, as described above, since an antenna such as WPC or PMA is located at the center of the antenna unit, it has been difficult to realize an additional pattern of the A4WP antenna.

Accordingly, it is inevitable to develop a technique capable of increasing the area of the A4WP antenna without affecting the antenna such as WPC or PMA disposed inside the antenna unit.

KR 10-1126676 B

SUMMARY OF THE INVENTION The present invention provides a combo antenna module capable of improving the range and efficiency of wireless power charging by utilizing antennas of different modes by switching according to the operation mode of the antenna unit, There is a purpose.

The present invention also provides a portable electronic device having a wireless power charging function that can improve the range and efficiency of wireless power charging by using two antennas by switching the combo antenna module by determining the operation mode of the antenna unit There is another purpose.

In order to solve the above-described problems, the present invention provides an antenna unit including a circuit board, a first antenna for wireless power, and a second antenna for wireless power in a manner different from the first antenna; And a switch which is disposed between the first capacitor and the second capacitor and is opened or closed according to an operation mode of the antenna unit, The second antenna and the second capacitor forming a closed loop for coupling with the first antenna.

Further, the first antenna may be disposed on the outer side of the circuit board, and the second antenna may be disposed on the inner side of the first antenna of the circuit board.

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

Also, the first antenna may be a radio power antenna of a self-resonance type, and the second antenna may be a magnetic induction type wireless power antenna.

Further, the switch may be opened when the operation mode of the antenna unit is a self-resonant wireless power mode.

In addition, the switch may be opened when the performance of the wireless power through the first antenna is lower than a reference value.

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

Further, the switch may be short-circuited when the operation mode of the antenna unit is a self-induced wireless power mode.

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 ribbon sheets of amorphous alloy or a ribbon sheet of nanocrystalline alloy.

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 first wireless power module operatively associated with the first antenna; A second wireless power module operatively associated with the second antenna; And a mode determiner for determining which one of the first wireless power module and the second wireless power module is operating and controlling the switching of the combo antenna module, and a portable electronic device having a wireless power charging function do.

In addition, the first wireless power module and the second wireless power module may transmit power wirelessly.

In addition, the first wireless power module and the second wireless power module may receive power wirelessly.

On the other hand, the present invention provides an antenna unit including a circuit board, a first antenna for wireless power, and a second antenna for wireless power in a manner different from the first antenna, A combo antenna module including a unit; A first capacitor and a second capacitor connected in parallel to the second antenna and a switch disposed between the first capacitor and the second capacitor and being opened or closed according to an operation mode of the antenna unit, Wherein the second antenna and the second capacitor form a closed loop coupling with the first antenna; A first wireless power module operatively associated with the first antenna; A second wireless power module operatively associated with the second antenna; And a mode determiner for determining which one of the first wireless power module and the second wireless power module is operating and controlling the switching of the combo antenna module, and a portable electronic device having a wireless power charging function do.

According to the present invention, by forming a closed loop using an antenna of another mode by switching according to the operation mode of the antenna unit, a separate resonant circuit is further formed and coupled to the antenna, thereby improving the range and efficiency of wireless power charging have.

Further, the present invention can improve the range and efficiency of wireless power charging without additionally providing an additional internal pattern by forming a closed loop such that a magnetic induction type wireless power antenna is coupled with a magnetic power type wireless power antenna It is possible to achieve miniaturization of the combo antenna module having a plurality of antennas.

Further, according to the present invention, since the combo antenna module is provided in the portable electronic device, the charging range and efficiency of the wireless power can be improved by switching according to the 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;
Fig. 3 is an equivalent circuit diagram of Fig. 2,
4 is a block diagram schematically showing another example of the operating state of the combo antenna module according to the embodiment of the present invention.
Fig. 5 is an equivalent circuit diagram of Fig. 4,
6 is a perspective view schematically showing a combo antenna module according to an embodiment of the present invention,
Fig. 7 is a cross-sectional view showing an example of the shielding unit of Fig. 6,
8 is a schematic block diagram of a portable electronic device having a wireless power charging function in accordance with 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, and in particular, a plurality of antennas for wireless power. The antenna unit 110 includes the circuit board 111, the first antenna 112, and the second antenna 114, as shown in FIGS. 1 and 6.

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 on the outer side of the circuit board 111. The first antenna 112 may be a self-resonant wireless power antenna, for example, an A4WP antenna.

The second antenna 114 is a wireless power antenna in a manner different from the first antenna 112. The second antenna 114 may be disposed inside the first antenna 112 of the circuit board 111 and may be a magnetic induction type wireless power antenna. For example, a WPC or PMA antenna Lt; / RTI >

6, the first antenna 112 and the second antenna 114 may be formed of a polygonal plate-like coil such as a circular, elliptical, spiral, or quadrangular shape that is wound clockwise or counterclockwise, As shown in FIG. 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 and 114 are all provided in the form of a flat coil, 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.

In the present embodiment, the antenna unit 110 includes two wireless power antennas 112 and 114. However, the present invention is not limited to this, and an antenna for wireless communication such as NFC or MST may be additionally provided.

In this case, a communication antenna, for example, an MST antenna, may be disposed between the two radio power antennas 112 and 114. In addition, the NFC antenna may be used in the vicinity of, or near, the first antenna 112 disposed on the outside.

The switching unit 120 is connected to the second antenna 114 of the antenna unit 110 to form a closed loop coupling with the first antenna 112 according to an operation mode of the antenna unit 110 Lt; / RTI >

A first capacitor (C 1) and a second capacitor (C 2), and with the second capacitor of the first capacitor (C 1), the switching unit 120 is connected in parallel to the second antenna 114 ( C 2 of the switch SW.

The first capacitor C 1 and the second capacitor C 2 may be disposed between the switches SW and connected or disconnected according to opening and closing of the switch SW. That is, when the switch SW is opened, the second antenna 114 and the second capacitor C 2 form a closed loop.

At this time, one end of the switch SW may be connected to both ends of the second antenna 114. The switch SW may be connected to the second wireless power module 16 interlocked with the second antenna 114.

As a result, the first capacitor C 1 may be directly connected to the second wireless power module 16, and the second capacitor C 2 may be directly connected to the second antenna 114.

Here, when the switching unit 120 is short-circuited, the first antenna 112 and the second antenna 114 may operate individually.

For example, as shown in FIG. 2, the switch SW of the switching unit 120 may connect the first capacitor C 1 and the second capacitor C 2 .

At this time, the magnetic induction type wireless power charging can be performed through the second antenna 114. In this case, the first antenna 112 does not operate because it has a frequency different from that of the second antenna 114.

In this case, as shown in FIG. 3, the second antenna 114 may be connected in parallel with two capacitors C 1 and C 2 of the switching unit 120. At this time, the first operating frequency f ant21 of the second antenna 114 is calculated by the following equation (1).

Figure 112015070121337-pat00001

Wherein, L 2 is an inductance teokseu of the second antenna (114), C 1 and C 2 is the capacitance of the first capacitor (C 1) and the second capacitor (C 2) of the switching unit 120 .

4, when the switching unit 120 is opened, the second antenna 114 is disconnected from the second wireless power module 16 interlocked with the second antenna 114, 2 antenna 114 and the second capacitor C 2 may form a closed loop.

That is, as shown in FIG. 5, the second antenna 114 forms a closed loop with one of the capacitors C 1 of the switching unit 120 to form an independent resonance circuit. At this time, the resonance frequency by each resonance circuit, that is, the second operation frequency f ant22 of the second antenna 114, can be calculated by the following equation (2).

Figure 112015070121337-pat00002

Such an independent resonant circuit can be coupled to the first antenna 112 if the resonant frequency f ant22 matches the operating frequency of the first antenna 112. That is, when the wireless power is charged through the first antenna 112, for example, when the wireless power of the self-resonance method is charged, the resonant circuit by the second antenna 114 is also separately provided from the first antenna 112 Wireless power can be received or transmitted. At the same time, the first antenna 112 can be coupled to the resonant circuit by the second antenna 114.

As a result, the first antenna 112 can operate as if a separate antenna is added by the coupling operation from the resonance circuit by the second antenna 114.

At this time, the first capacitor (C 1) and the second by adjusting the inductance (L 2) of the capacitance and the antenna of the capacitor (C 2), the second antenna 114, the wireless power charging of the magnetic induction a first operating frequency (f ant21) with the first antenna a second operating frequency (f ant22) to 112 and the coupling to perform may have.

In this manner, together with the first antenna 112, the closed loop formed by the second antenna 114 can operate as one antenna. That is, in this case, the wireless power can be charged in a self-resonating manner through the first antenna 112 and the closed loop of the second antenna 114 coupled thereto.

Therefore, the second antenna 114 disposed inside the circuit board 111 can be additionally used by forming a closed loop in which the second antenna 114 couples with the first antenna 112 .

As a result, the range of the antenna used when charging the wireless power of the self-resonance method is extended not only to the outer frame of the circuit board 111 but also to the central portion of the circuit board 111, The distance can be increased to enlarge the wireless power charging range, and at the same time, the wireless power charging is performed through a wider range, so that the efficiency of wireless power charging can be improved.

Furthermore, by selectively using the second antenna 114 disposed inside the first antenna 112 by switching, efficiency of wireless power charging can be improved without providing an additional antenna or pattern, Therefore, it is possible to downsize the combo antenna module 100 with respect to the same efficiency.

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 a self-resonance method, for example, When the wireless power is charged through the first antenna 112, the second antenna 114 may form a closed loop to couple with the first antenna 112.

Alternatively, if the performance of the wireless power through the first antenna 112 is lower than the reference value, the switching unit 120 may switch the second antenna 114 to the closed loop Can be formed. That is, when the wireless power is charged by the self-resonance method or when the wireless power is charged through the first antenna 112, the switching unit 120 does not switch unconditionally, and when the efficiency is lower than the reference value It is also possible to operate selectively only in certain cases. At this time, the performance of the wireless power may be the intensity of the transmission or reception of the wireless 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, When the wireless power is charged through the second antenna 114, the switch SW of the switching unit 120 can be short-circuited.

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.

6, the combo antenna module 100 may further include the shielding unit 130 disposed on one side 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, the shielding unit 130 may be provided with an antenna unit that operates in a frequency band of 100 to 350 kHz when the wireless power is charged by the magnetic induction method, or when the wireless power is charged by the self- (110).

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 130 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.

7, the shielding unit 130 'may be formed by stacking a plurality of amorphous alloy or nanocrystalline alloy ribbon sheets 131a, 131b, and 131c in two or more layers as shown in FIG. 7 .

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. [

8, a 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 first wireless power module 14, And a second wireless power module 16.

The mode determination unit 12 determines which one of the first wireless power module 14 and the second wireless power module 16 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 wireless power received through the antennas of the combo antenna module 100, for example.

Alternatively, the mode determiner 12 does not unconditionally switch the switching unit 120 according to the operation mode of the first wireless power module 14 and the second wireless power module 16, It is possible to judge the condition for switching only.

For example, in the portable electronic device 10, while the wireless power is being charged by the self-resonance method through the first antenna 112 disposed at the outer portion of the circuit board 111, The second antenna 114 may switch the switching unit 120 to form a closed loop for coupling with the first antenna 112 to improve efficiency.

At this time, the mode determination unit 12 may determine a specific condition for switching the switching unit 120. [ For example, the mode determiner 12 may determine whether the performance of the wireless power is below a reference value according to the wireless power transmission or reception intensity.

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 first wireless power module 14 performs radio power charging in a self-resonant manner in cooperation with the first antenna 112. [ The first wireless power module 14 may transmit power or receive power wirelessly. That is, the first wireless power module 14 may include any one or both of a wireless power transmission module and a wireless power reception module.

The second wireless power module 16 performs wireless power charging in a magnetic induction manner in conjunction with the second antenna 114. The second wireless power module 16 may transmit or receive power wirelessly. That is, the second wireless power module 16 may include any one or both of a wireless power transmission module and a wireless power reception module.

Here, when the first wireless power module 14 and the second wireless power module 16 function as a wireless power transmission module, the first wireless power module 14 and the second wireless power module 16 convert the DC power supplied from the power source of the portable electronic device 10 to AC power And an inverter (not shown) provided to the first antenna 112 and the second antenna 114.

In addition, when the first wireless power module 14 and the second wireless power module 16 are functioning as a wireless power receiving module, the first wireless power module 14 and the second wireless power module 16 may receive the wireless signals received from the first antenna 112 and the second antenna 114, A rectifier (not shown) for converting power into direct current power and a DC-DC converter (not shown) for converting it into a battery of the portable electronic device 10 or a power source suitable for use as an internal power source.

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

As described above, 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 and efficiency of wireless power charging by switching according to the operation mode, , Convenience and satisfaction for the user of the portable electronic device 10 can be improved.

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 power module 16: second wireless power module
100: Combo antenna module 110: Antenna unit
111: circuit board 112: first antenna
114: second 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 (21)

An antenna unit including a circuit board, a first antenna for wireless power, and a second antenna for wireless power in a manner different from the first antenna; And
A first capacitor and a second capacitor connected in parallel to the second antenna and a switch disposed between the first capacitor and the second capacitor and being opened or closed according to an operation mode of the antenna unit, And wherein the second antenna and the second capacitor form a closed loop coupling with the first antenna. The method according to claim 1,
Wherein the first antenna is disposed at an outer portion of the circuit board, and the second antenna is disposed inside the first antenna of the circuit board. 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 a wireless power antenna of a self resonance type and the second antenna is a wireless power antenna of a magnetic induction type. The method according to claim 1,
Wherein the switch is opened when the operation mode of the antenna unit is a self-resonant wireless power mode. The method according to claim 1,
Wherein the switch is opened when the performance of the wireless power through the first antenna is lower than a reference value. The method according to claim 6,
Wherein the performance of the wireless power is a strength of a wireless power transmission or reception. The method according to claim 1,
Wherein the switch is short-circuited when the operation mode of the antenna unit is a self-induced wireless power mode. The method according to claim 1,
And a shielding unit disposed on one surface of the antenna unit to induce a magnetic field. 10. The method of claim 9,
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. 11. The method of claim 10,
Wherein the ribbon sheet comprises a plurality of amorphous alloy ribbon sheets or a nanocrystalline alloy ribbon sheet laminated. 11. The method of claim 10,
Wherein the ferrite sheet is made of MnZn ferrite or NiZn ferrite. 11. The method of claim 10,
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. 10. The method of claim 9,
Wherein the shielding unit is divided into a plurality of minute pieces. 15. The method of claim 14,
Wherein the plurality of microparts are entirely insulated or partially insulated between neighboring microparts. 15. The method of claim 14,
Wherein the plurality of micro pieces are 1 mu m to 3 mm in size. 15. The method of claim 14,
And the plurality of minute pieces are formed at an irregular shape. A combo antenna module according to any one of claims 1 to 17,
A first wireless power module operatively associated with the first antenna;
A second wireless power module operatively associated with the second antenna; And
And a mode determiner for determining which one of the first wireless power module and the second wireless power module is operating and controlling the switching of the combo antenna module. 19. The method of claim 18,
Wherein the first wireless power module and the second wireless power module transmit power wirelessly. 19. The method of claim 18,
Wherein the first wireless power module and the second wireless power module receive power wirelessly. A combobox comprising an antenna unit including a circuit board, a first antenna for wireless power, and a second antenna for wireless power in a manner different from the first antenna, and a shielding unit disposed on one surface of the antenna unit for inducing a magnetic field An antenna module;
A first capacitor and a second capacitor connected in parallel to the second antenna and a switch disposed between the first capacitor and the second capacitor and being opened or closed according to an operation mode of the antenna unit, Wherein the second antenna and the second capacitor form a closed loop coupling with the first antenna;
A first wireless power module operatively associated with the first antenna;
A second wireless power module operatively associated with the second antenna; And
And a mode determiner for determining which one of the first wireless power module and the second wireless power module is operating and controlling the switching of the combo antenna module.
KR1020150102443A 2015-07-20 2015-07-20 Combo antenna module and mobile electronic device having the same KR101888353B1 (en)

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KR1020150102443A KR101888353B1 (en) 2015-07-20 2015-07-20 Combo antenna module and mobile electronic device having the same
PCT/KR2016/007495 WO2017014467A1 (en) 2015-07-20 2016-07-11 Combination antenna module and portable electronic device including same
US15/745,731 US10931151B2 (en) 2015-07-20 2016-07-11 Combination antenna module and portable electronic device including same
CN201680053099.9A CN108140476B (en) 2015-07-20 2016-07-11 Combined antenna module and portable electronic device including the same

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KR101265234B1 (en) 2012-01-30 2013-05-16 쓰리에이로직스(주) Nfc device

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KR20130081620A (en) * 2012-01-09 2013-07-17 주식회사 케이더파워 The reciving set for the wireless charging system
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