CN204538189U - Antenna assembly - Google Patents

Abstract

The utility model provides a kind of and adapts to the miniaturized and densification development trend of portable communication equipment with low cost and agree with the antenna assembly of the use habit of people.Described antenna assembly has: power supply coil, and this power supply coil connects current supply circuit, carries out based on magnetic-coupled radio communication with external communication device, and planar conductor, this planar conductor arrangement is between described power supply coil and described external communication device, described planar conductor is formed with the first peristome extended inward from a part for outer rim, described first peristome lower to overlap with described power supply coil institute enclosing region overlooking, and, the feature of described antenna assembly is, also have: first substrate, this first substrate is configured at the side contrary with described planar conductor of described power supply coil, described first substrate is formed with the second peristome of the longitudinal centre line making the peak point of antenna-coupled characteristic near described planar conductor.

Description

Antenna assembly

Technical field

The utility model relates to the antenna assembly used in rfid system, short-distance wireless communication system and the Wireless Telecom Equipment with this antenna assembly.

Background technology

Radio-frequency (RF) identification (RFID) technology is a kind of contactless automatic identification technology, and it utilizes electromagnetic wave to realize the automatic identification of article.Radio-frequency (RF) identification is most widely used with high frequency and hyperfrequency.But the radio frequency of shf band is more responsive to environment, especially metal.When rfid system is applied in metal environment, the vortex flow resulted from metal can cause the magnetic field between the proximity type antenna in rfid system and external communication device to die down, thus coupled characteristic between the two may be caused to reduce.

As an example, in the RFID of the HF frequency bands such as the NFC (Near Field Communication: near field communication (NFC)) being installed on carried terminal, general RFID IC chip, matching element are mainly installed on circuit substrate, antenna is secured at the inner side of resinous terminal shell, and by spring catch etc. by RFID with IC chip and sky line uniflow be connected.

On the other hand, the radio communication devices such as nearest mobile telephone terminal develop to slimming, in order to tackle the undercapacity caused due to slimming, following situation increases: namely, or the processing of magnesium plating is implemented to resin-case, or the metal shell utilizing the material such as aluminium or carbon fiber to be formed, the situation of intensity is made up by the metallization carried out housing.

But, under metallized situation is carried out to housing, as mentioned above, the magnetic field that the antenna being built in terminal produces can die down because of the vortex flow resulted from metal, thus cause the coupled characteristic between antenna and external communication device to reduce, thus, likely can produce and cannot carry out with external communication device the problem that communicates.

For solving the problem, as shown in figure 15 Patent Document 1 discloses a kind of mobile phone, wherein, Figure 15 (a) is the stereogram of described mobile phone, and Figure 15 (b) is A-A ' the line profile of Figure 15 (a).Described mobile phone comprises antenna assembly, this antenna assembly has the power supply coil 130 (antenna part) carried out with external communication device based on magnetic-coupled radio communication, and the planar conductor 140 be arranged near this power supply coil, planar conductor 140 has opening OP and arrives the otch SL of linearity of planar conductor 140 end from this opening OP, the position that at least one party being configured in the region surrounded with power coil 130 and the inner circumferential that is powered coil 130 when viewed in plan at least partially of opening OP overlaps.Can make to flow through vortex flow around opening OP by such structure, described vortex flow can produce the magnetic field to the direction that the magnetic field produced between proximity type antenna and external communication device strengthens, thus the problem that solution has the metallics material of considerable influence because planar conductor 140 grade be configured near power supply coil 130 contains to the current direction of power supply coil and causes coupled characteristic to reduce.

Prior art document

Patent documentation

Patent documentation 1:CN102299412A

Only mentioning in the middle of prior art can by arranging seam in the end of planar conductor, thus the reduction of the coupled characteristic suppressing this planar conductor to cause.But, the substrate that printed circuit board (PCB) (pcb board) etc. contains metallics is usually also provided with in the side contrary with planar conductor of power supply coil.Therefore, also to the magnetic fields between proximity type antenna and external communication device, the reduction of coupled characteristic can should be caused by the substrate containing metallics.

In addition, when the Construction Design for Communication Devices of reality, peristome on planar conductor may be arranged on the position of departing from planar conductor longitudinal centre line, but due to the coupled characteristic between antenna point of maximum intensity (namely, peak point) position mainly by the determining positions of peristome on planar conductor, so time the antenna of working as proximity type antenna and external communications equipment carries out close contact, the center of the coupled characteristic between antenna (namely, the position of peak point) planar conductor longitudinal center line position can be departed from along with the skew of the peristome on planar conductor.But the use habit due to people is gone to contact with external communication device in the back longitudinal center position of proximity type communication apparatus, if the most intensity values of coupled characteristic is not in longitudinal center position, people can produce the not smooth sensation of use when in use.

The utility model, for solving in prior art existing the problems referred to above, its object is to provide a kind of and adapts to the miniaturized and densification development trend of portable communication equipment with low cost and agree with the antenna assembly of the use habit of people.

The technical scheme that technical solution problem adopts

For achieving the above object, the antenna assembly involved by the utility model has: power supply coil, and this power supply coil connects current supply circuit, carries out based on magnetic-coupled radio communication with external communication device, and planar conductor, this planar conductor arrangement is between described power supply coil and described external communication device, described planar conductor is formed with the first peristome extended inward from a part for outer rim, described first peristome lower to overlap with described power supply coil institute enclosing region overlooking, the feature of described antenna assembly is, also have: first substrate, this first substrate is configured at the side contrary with described planar conductor of described power supply coil, described first substrate is formed with the second peristome of the longitudinal centre line making the peak point of antenna-coupled characteristic near described planar conductor.

In addition, the feature of the antenna assembly involved by the utility model is, described second peristome overlaps at least partly with described first peristome under overlooking, and the longitudinal centre line of described second peristome and the longitudinal centre line of described planar conductor are positioned at the same side of the longitudinal centre line of described first peristome.

In addition, the feature of the antenna assembly involved by the utility model is, described first substrate is pcb board.

In addition, the feature of the antenna assembly involved by the utility model is, between described first substrate and described power supply coil, be configured with second substrate, described second substrate is formed and overlooks lower the 3rd peristome overlapped with described second peristome, the aperture area of described 3rd peristome is more than or equal to the aperture area of described second peristome.

In addition, the feature of the antenna assembly involved by the utility model is, in the side contrary with described power supply coil of described first substrate, be configured with the 3rd substrate, described 3rd substrate is formed and overlooks lower the 4th peristome overlapped with described second peristome, the aperture area of described 4th peristome is more than or equal to the aperture area of described second peristome.

In addition, the feature of the antenna assembly involved by the utility model is, described planar conductor is the metal back cover of communication equipment.

In addition, the feature of the antenna assembly involved by the utility model is, described planar conductor is provided at the plane pattern that the metallic film on flexible sheet material is formed.

In addition, the feature of the antenna assembly involved by the utility model is, described first peristome is for configuring the camera lens part of camera model.

In addition, the feature of the antenna assembly involved by the utility model is, described first peristome is for configuring loud speaker.

In addition, the feature of the antenna assembly involved by the utility model is, described first peristome is for configuring microphone.

Utility model effect

According to the utility model, even if the longitudinal centre line of the first peristome on planar conductor departs from from the longitudinal centre line of described planar conductor, but due to be configured at described power supply coil with on the first substrate of described planar conductor opposite side, be formed with the second peristome of the longitudinal centre line making the center of antenna-coupled characteristic near described planar conductor, therefore, by adjusting the position of the second peristome, make the peak point of the coupled characteristic between proximity type antenna and external communication device as far as possible close to the longitudinal center position of planar conductor, thus can obtain and a kind ofly adapt to the miniaturized and densification development trend of portable communication equipment with low cost and agree with the antenna assembly of the use habit of people.

Utility model content

Utility model technical problem to be solved

Accompanying drawing explanation

Fig. 1 is the system construction drawing representing short-distance wireless communication system.

Fig. 2 is the figure of the external structure of the mobile phone represented in Fig. 1, and wherein, Fig. 2 (a) is the front view of mobile phone 10, and Fig. 2 (b) is the rear view of mobile phone 10.

Fig. 3 is the exploded perspective view of the major part of the antenna assembly represented involved by the utility model.

Fig. 4 be represent there is no opening as prior art on the first substrate state under the vertical view of an example of antenna assembly.

Fig. 5 is the schematic diagram of the peak point position representing the coupled characteristic of antenna assembly shown in Fig. 4.

Fig. 6 be represent as the utility model, have opening on the first substrate state under the vertical view of an example of antenna assembly.

Fig. 7 is the schematic diagram of the peak point position representing the coupled characteristic of antenna assembly shown in Fig. 6.

Fig. 8 (a) ~ Fig. 8 (f) is the schematic diagram of the position relationship represented in the antenna assembly involved by embodiment 2 of the present utility model between first peristome and the second peristome.

Fig. 9 is the schematic diagram of the change representing corresponding with the position relationship shown in Fig. 8 (a) ~ Fig. 8 (f) respectively coupling coefficient numerical value.

Figure 10 is the vertical view of an example of the antenna assembly represented involved by embodiment 3 of the present utility model.

Figure 11 is the schematic diagram of the peak point position representing the coupled characteristic of antenna assembly shown in Figure 10.

Figure 12 is the exploded perspective view of the major part of the antenna assembly represented involved by a variation of the present utility model.

Figure 13 (a) ~ Figure 13 (c) is the exploded view of the major part of the antenna assembly represented involved by another variation of the present utility model.

Figure 14 (a), Figure 14 (b) are the vertical views of the planar conductor of the antenna assembly represented involved by another variation of the present utility model.

Figure 15 (a) is the stereogram of the mobile phone involved by prior art, and Figure 15 (b) is A-A ' the line profile of Figure 15 (a).

Embodiment

Embodiment 1.

Below, with reference to Fig. 1 ~ Fig. 3, the basic structure of the Wireless Telecom Equipment involved by the utility model is described.

Fig. 1 is the system construction drawing representing short-distance wireless communication system.As shown in the figure, near field communication system 1 is made up of mobile phone 10 and read write line 14.Described mobile phone 10 is Wireless Telecom Equipment examples, those of ordinary skill in the art are to be understood that, although be described for mobile phone in the utility model, but in addition to a mobile telephone, Wireless Telecom Equipment can also comprise bank card, flat computer, notebook computer etc. other possess unit and the system of radio communication function.Described mobile phone 10 has proximity type antenna 11, IC chip 12 and main part 13.Described read write line 14 has proximity type antenna 15 and CPU16.Be equipped on proximity type antenna 11 on mobile phone 10 and IC chip 12 forms non-contact IC card.

Fig. 2 is the figure of the external structure of the mobile phone 10 represented in Fig. 1.Wherein, Fig. 2 (a) is the front view of mobile phone 10, and Fig. 2 (b) is the rear view of mobile phone 10.As shown in Figure 2, under looking up, the front of mobile phone 10 is provided with outside framework 21 and touch-screen 22.Under overlooking, be coated with at the back side of mobile phone 10 be such as made up of the products formed of aluminium, as the metal back cover of planar conductor 23.In described metal back cover, to extend internally from metal back cover outer rim along the longitudinal direction of mobile phone 10 and be formed with otch 24a, and, be also formed with the opening 24b be connected with this otch 24a.Mobile phone 10 profile in the form of a substantially rectangular time, above-mentioned " longitudinal direction " refers to the long side direction of rectangle.When the profile of mobile phone 10 is other shapes, above-mentioned " longitudinal direction " refers to the hand-held direction of mobile phone 10 under normal operating condition.

In addition, in the utility model, planar conductor 23 is metal back cover of communication equipment, but is not limited thereto, and planar conductor 23 also can be provided at the plane pattern that the metallic film on flexible sheet material is formed.When being provided at the metal thin film patterns on flexible sheet material at planar conductor 23, inside the bonnet being pasted on Wireless Telecom Equipment by bonding agent etc.Planar conductor 23 is for having the conductor on the surface of the expansion of planar in addition, need not be required to be plane (such as, also can be curved surface).But what be preferably described planar conductor 23 is metal shell at least partially.By this structure, without the need to being provided as the special-purpose member of planar conductor, therefore, the number of components and parts can be cut down.

In addition, the opening 24b on described planar conductor 23 not only may be used for the camera lens part configuring camera model, also may be used for various function part such as configuration loud speaker, microphone etc.

Fig. 3 shows the internal structure of mobile phone 10, is the exploded perspective view of the major part of the antenna assembly represented involved by the utility model.In addition, the structure of three only for representing power supply coil, planar conductor and first substrate structural relation in the mobile phone, having been done a collimation herein and having been shown by Fig. 3 for ease of explanation.As shown in Figure 3, on the face of the side relative to touch-screen 22 of planar conductor 23, the power supply coil 31 be formed on soft board 32 is pasted with.Under overlooking, the region that surrounds by described power supply coil 31 overlap with described opening 24a.Described power supply coil 31 and described soft board 32 form proximity type antenna 33 jointly.Further, described otch 24a and described opening 24b forms the first peristome 24 jointly.

In addition, as shown in Figure 3, in the side contrary with described planar conductor 23 of described power supply coil 31, first substrate 34 is also configured with.In the utility model, described first substrate 34 is printed circuit board (PCB) (hereinafter also referred to as pcb boards).Described pcb board is the supplier of electronic devices and components electrical connection.Single sided board, double sided board, four laminates, six laminates and other multilayer circuit boards is divided into according to the wiring board number of plies.The base material of pcb board itself is by insulated heat and made by unbending material.When making final wiring board, it can be installed integrated circuit, electric crystal, diode, passive device (as: resistance, electric capacity, connector etc.) and other various electronic devices and components.By wire UNICOM, electric signal can be formed and link and function desired by realizing.In addition, in the utility model, first substrate 34 is pcb boards, but is not limited thereto, as long as the metallic object containing metallics as pcb board.

Below, with reference to Fig. 4 ~ Fig. 7, the structure of the antenna assembly involved by embodiment 1 of the present utility model and technique effect are described.

Fig. 4 be represent on first substrate 34, there is no opening as prior art state under the vertical view of an example of antenna assembly, Fig. 5 is the schematic diagram of the peak point position representing the coupled characteristic of antenna assembly shown in Fig. 4.Fig. 6 be represent as the utility model, on first substrate 34, have opening state under the vertical view of an example of antenna assembly, Fig. 7 is the schematic diagram of the peak point position representing the coupled characteristic of antenna assembly shown in Fig. 6.

Under the state that first substrate 34 does not have opening, the peak point of antenna assembly coupled characteristic is in longitudinal center's line position of the first peristome 24 on planar conductor 23, that is, longitudinal center's line position of the first peristome 24 is depended in the peak point position of antenna assembly coupled characteristic.In other words, as shown in Figure 4, when the first peristome 24 is not arranged on longitudinal center position (in Fig. 4 the Y-axis position) of planar conductor, namely, when the longitudinal centre line of the first peristome 24 departs from the longitudinal centre line of planar conductor, the position of the peak point of described antenna assembly coupled characteristic also can be departed from thereupon.The situation carrying out arranging due to the longitudinal center being located at the position deviation planar conductor of the opening on planar conductor that such as camera hole in real life is such is comparatively common, therefore, as shown in Figure 5, there is planar conductor longitudinal centre line can be departed from peak point position problem along with the first departing from of peristome 24.

In contrast, in the utility model, as shown in Figure 6, consider on first substrate 34, arrange the second peristome 35, by this second peristome 35, the central point of coupled characteristic and the position of peak point are regulated.As shown in Figure 7, by arranging the second peristome 35 on first substrate 34, the position of the peak point that the longitudinal centre line from planar conductor 23 can be departed from adjusts back the longitudinal centre line of planar conductor 23, therefore, user can be convenient to and the longitudinal center position of mobile phone be contacted the coupling obtaining the best with external communications equipment.

According to structure of the present utility model, following technique effect can be realized: namely, even if the longitudinal centre line of the first peristome on planar conductor departs from from the longitudinal centre line of described planar conductor, but owing to being formed with the second peristome on the first substrate of the side contrary with planar conductor being configured at power supply coil, therefore, by adjusting the position of described second peristome, make the position of the peak point of antenna assembly coupled characteristic as far as possible near the longitudinal centre line of described planar conductor, thus can obtain and a kind ofly adapt to the miniaturized and densification development trend of portable communication equipment with low cost and agree with the antenna assembly of the use habit of people.

Embodiment 2.

Below, with reference to Fig. 8, Fig. 9, the structure of the antenna assembly involved by embodiment 2 of the present utility model and technique effect are described.

Fig. 8 (a) ~ Fig. 8 (e) is the schematic diagram of the position relationship represented in the antenna assembly involved by embodiment 2 of the present utility model between first peristome 24 and the second peristome 35, wherein, the longitudinal axis (Y-axis) of Fig. 8 represents the position at planar conductor longitudinal centre line place, the region representation that surrounds by dotted line be configured with the region of power supply coil, T-shaped region representation first peristome 24 that surrounds by heavy line, region representation second peristome 35 that surrounds by fine line.Fig. 9 is the schematic diagram of the change representing corresponding with the position relationship shown in Fig. 8 (a) ~ Fig. 8 (e) respectively coupling coefficient numerical value, wherein, the longitudinal axis of Fig. 9 represents the numerical value of coupling coefficient, transverse axis represents the coordinate along planar conductor cross directional variations, transverse axis coordinate is longitudinal center's line position of the positional representation planar conductor of 0, and the region between two chain-dotted lines represents the qualified region be positioned near planar conductor longitudinal centre line.

In the present embodiment 2, suppose when the first peristome 24 to depart to the left side of planar conductor 23 longitudinal centre line and across planar conductor longitudinal centre line, first substrate 34 is formed the second peristome 35.

In addition, label a in Fig. 8 represents the rightmost side of the first peristome 24, Δ Y represents the distance of the leftmost side to the rightmost side of the first peristome 24, a-Δ Y represents the leftmost side of the first peristome 24, b represents the longitudinal centre line of the first peristome 24, and Δ X represents the distance of the longitudinal centre line of the first peristome 24 to the longitudinal centre line of the second peristome 35.Wherein ,+Δ X represents that the longitudinal centre line of the second peristome 35 is positioned at the situation on the right side of the longitudinal centre line of the first peristome 24, and-Δ X represents that the longitudinal centre line of the second peristome 35 is positioned at the situation in the left side of the longitudinal centre line of the first peristome 24.

In addition, below illustrate that the first peristome departs to the left side of planar conductor longitudinal centre line and across the situation of planar conductor longitudinal centre line, and when the first peristome to depart to the right side of planar conductor longitudinal centre line and across planar conductor longitudinal centre line, except offset direction, the position relationship of each several part and identical with the present embodiment on the impact of coupled characteristic, therefore omits the description.

First, as shown in Fig. 8 (a), make the longitudinal centre line b-Δ X of the second peristome 35 between the leftmost side a-Δ Y and its longitudinal centre line b of the first peristome 24.In this case, as shown in the curve A of Fig. 9, the maximum of coupling coefficient and the peak point of antenna assembly coupled characteristic have dropped on beyond qualified region, are judged as defective.

Secondly, as shown in Fig. 8 (b), the longitudinal centre line b-Δ X of the second peristome 35 is overlapped with the longitudinal centre line b of the first peristome 24.In this case, as shown in the curve B of Fig. 9, the maximum of coupling coefficient and the peak point of antenna assembly coupled characteristic have still dropped on beyond qualified region, are judged as defective.

Then, as shown in Fig. 8 (c), make the longitudinal centre line b+ Δ X of the second peristome 35 between the longitudinal centre line b and Y-axis of the first peristome 24.In this case, as shown in the curve C of Fig. 9, within the maximum of coupling coefficient and the peak point of antenna assembly coupled characteristic have dropped on qualified region, and be positioned at the left side of planar conductor longitudinal centre line (namely transverse axis coordinate is the position of 0), it is qualified to be judged as.

Afterwards, as shown in Fig. 8 (d), make the longitudinal centre line b+ Δ X of the second peristome 35 between Y-axis and the low order end a of the first peristome 24.In this case, as shown in the curve D of Fig. 9, the maximum of coupling coefficient and the peak point of antenna assembly coupled characteristic overlap with planar conductor longitudinal centre line (namely transverse axis coordinate is the position of 0) substantially.

Then, as shown in Fig. 8 (e), the longitudinal centre line b+ Δ X of the second peristome 35 is overlapped with the low order end a of the first peristome 24.In this case, as shown in the curve E of Fig. 9, within the maximum of coupling coefficient and the peak point of antenna assembly coupled characteristic drop on qualified region, and be positioned at the right side of planar conductor longitudinal centre line (namely transverse axis coordinate is the position of 0), it is qualified to be judged as.

Finally, shown in accompanying drawing 8 (f), make the longitudinal centre line b+ Δ X of the second peristome 35 be positioned at the right side of the low order end a of the first peristome 24, and the leftmost side of the second peristome 35 is overlapped with the rightmost side a of the first peristome 24.In this case, as shown in the curve F of Fig. 9, the maximum of coupling coefficient and the peak point of antenna assembly coupled characteristic have dropped on beyond qualified region, are judged as defective.

According to the position relationship between above-mentioned first peristome 24 and the second peristome 35 and the change of coupling coefficient numerical value that corresponds, when the longitudinal centre line of the first peristome 24 departs from the longitudinal centre line of planar conductor 23, as long as the second peristome 35 overlaps at least partly with the first peristome 24 under overlooking, and the second peristome 35 is contrary relative to the offset direction of planar conductor 23 longitudinal centre line with above-mentioned first peristome 24 relative to the offset direction of the first peristome 24 longitudinal centre line, namely, the longitudinal centre line of the second peristome 35 and the longitudinal centre line of planar conductor 23 are positioned at the same side of the longitudinal centre line of the first peristome 24, peak point between proximity type antenna and external communication device can be adjusted in the qualified region near planar conductor 23 longitudinal centre line.And, from curve C, the curve D of Fig. 8 (c), Fig. 8 (d) and Fig. 9 corresponding thereto, when the longitudinal centre line of the first peristome 24 across planar conductor 23, by adjusting the position of the second peristome 35 longitudinal centre line, the position of peak point can be adjusted to substantially and overlap with planar conductor 23 longitudinal centre line.

In addition, as the optimal way of the present embodiment, the lap of the second peristome and the first peristome transversely at least accounts for more than 50% of the second peristome at planar conductor.

Embodiment 3.

Below, with reference to Figure 10, Figure 11, the structure of the antenna assembly involved by embodiment 3 of the present utility model and technique effect are described.

Figure 10 is the vertical view of an example of the antenna assembly represented involved by embodiment 3 of the present utility model, and Figure 11 is the schematic diagram of the peak point position representing the coupled characteristic of antenna assembly shown in Figure 10.

As shown in Figure 10, the first peristome 24 of the antenna assembly of the present embodiment 3 departs to the left side of planar conductor 23 longitudinal centre line, and be in planar conductor 23 longitudinal centre line completely and do not overlap with it.In this case, first substrate 34 forms the second peristome 35.Second peristome 35 is overlapped at least partly with the first peristome 24 under overlooking.Further, the longitudinal centre line b-Δ X of the second peristome 35 and the longitudinal centre line (i.e. Y-axis) of planar conductor is made to be arranged in the same side (figure is right side) of the longitudinal centre line b of the first peristome 24.

In this case, as shown in figure 11, although peak point cannot be adjusted to the position overlapped with the longitudinal centre line of planar conductor, but still peak point can be made as far as possible close to the longitudinal center position of planar conductor, thus antenna assembly can be made as far as possible to agree with the use habit of people.

Variation.

Below, with reference to Figure 12 ~ Figure 14, variation of the present utility model is described.

Figure 12 is the exploded perspective view of the major part of the antenna assembly represented involved by a variation of the present utility model.As shown in figure 12, when being configured with other substrate (second substrate) 41 between first substrate 34 and power supply coil 31, because the metallics in second substrate 41 can produce reflex to magnetic field, therefore, lower the 3rd peristome 42 overlapped with the second peristome 35 is overlooked by being formed on second substrate 41, and make the aperture area of described 3rd peristome 42 be more than or equal to the aperture area of described second peristome 35, the metallics in second substrate 41 can be avoided to have an impact to antenna performance, thus the position that can play better by adjusting the second peristome 35 makes the position of peak point to the close effect of planar conductor 23 central authorities.

In addition, the aperture area being preferably the aperture area of described 3rd peristome 42 and described second peristome 35 is completely the same.

In addition, herein show the situation being configured with other substrate (second substrate) between first substrate and power supply coil, but the side contrary with power supply coil at first substrate is configured with to the situation of other substrate (the 3rd substrate), said structure is suitable for too.

Figure 13 (a) ~ (c) is the exploded view of the major part of the antenna assembly represented involved by another variation of the present utility model.As shown in Figure 13 (a), the shape of the second peristome 35 can be rectangle, but is not limited thereto.Such as, also can as shown in Figure 13 (b) be the otch extended inward by a part for the outer rim from first substrate 34 and the circular open that is connected with this otch form shape, or also can be a part etc. for the part circular extended inward from a part for the outer rim of first substrate 34 as shown in Figure 13 (c).

Figure 14 (a), (b) are the vertical views of the planar conductor 23 of the antenna assembly represented involved by another variation of the present utility model.As shown in Figure 14 (a), the first peristome 24 also can be made up of from the extend internally otch formed and the rectangular aperture be connected with this otch of planar conductor 23 outer rim the transverse direction (direction that length is shorter) along Wireless Telecom Equipment.In addition, the shape of opening is not limited to rectangle, such as, also can be circle etc. as shown in Figure 14 (b).

More than describe in detail preferred embodiment of the present utility model.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore; all those skilled in the art, all should belong to by the determined protection range of claims of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment according to design of the present utility model.

Label declaration

1 near field communication system

10 mobile phones

11 proximity type antennas

12 IC chips

13 main parts

14 read write lines

15 proximity type antennas

16 CPU

21 outside frameworks

22 touch-screens

23 planar conductors

24 first peristomes

24a otch

24b opening

31 power supply coils

32 soft boards

33 proximity type antennas

34 first substrates

35 second peristomes

41 second substrates

42 the 3rd peristomes

130 power supply coils

140 planar conductors

SL otch

OP opening

Claims (10)

1. an antenna assembly, has:

Power supply coil, this power supply coil connects current supply circuit, carries out based on magnetic-coupled radio communication with external communication device; And

Planar conductor, this planar conductor arrangement is between described power supply coil and described external communication device, described planar conductor is formed with the first peristome extended inward from a part for outer rim, described first peristome lower to overlap with described power supply coil institute enclosing region overlooking

The feature of described antenna assembly is also have:

First substrate, this first substrate is configured at the side contrary with described planar conductor of described power supply coil, described first substrate is formed with the second peristome of the longitudinal centre line making the peak point of antenna-coupled characteristic near described planar conductor.

2. antenna assembly as claimed in claim 1, is characterized in that,

Described second peristome overlaps at least partly with described first peristome under overlooking,

The longitudinal centre line of described second peristome and the longitudinal centre line of described planar conductor are positioned at the same side of the longitudinal centre line of described first peristome.

3. antenna assembly as claimed in claim 1, is characterized in that,

Described first substrate is printed circuit board (PCB).

4. the antenna assembly as described in any one of claims 1 to 3, is characterized in that,

Between described first substrate and described power supply coil, be configured with second substrate,

Described second substrate is formed and overlooks lower the 3rd peristome overlapped with described second peristome,

The aperture area of described 3rd peristome is more than or equal to the aperture area of described second peristome.

5. the antenna assembly as described in any one of claims 1 to 3, is characterized in that,

In the side contrary with described power supply coil of described first substrate, be configured with the 3rd substrate,

Described 3rd substrate is formed and overlooks lower the 4th peristome overlapped with described second peristome,

The aperture area of described 4th peristome is more than or equal to the aperture area of described second peristome.

6. the antenna assembly as described in any one of claims 1 to 3, is characterized in that,

Described planar conductor is the metal back cover of communication equipment.

7. the antenna assembly as described in any one of claims 1 to 3, is characterized in that,

Described planar conductor is provided at the plane pattern that the metallic film on flexible sheet material is formed.

8. the antenna assembly as described in any one of claims 1 to 3, is characterized in that,

Described first peristome is for configuring the camera lens part of camera model.

9. the antenna assembly as described in any one of claims 1 to 3, is characterized in that,

Described first peristome is for configuring loud speaker.

10. the antenna assembly as described in any one of claims 1 to 3, is characterized in that,

Described first peristome is for configuring microphone.