CN107204515A

CN107204515A - Antenna assembly

Info

Publication number: CN107204515A
Application number: CN201710311330.6A
Authority: CN
Inventors: 刘献文
Original assignee: Zhonglei Electronic (suzhou) Co Ltd; Sercomm Corp
Current assignee: Zhonglei Electronic (suzhou) Co Ltd; Sercomm Corp
Priority date: 2016-09-26
Filing date: 2017-05-05
Publication date: 2017-09-26
Also published as: CN106229673A; EP3300171A1

Abstract

The present invention provides a kind of antenna assembly.Antenna assembly includes substrate and antenna.Substrate has the first corner that first side and second side are formed, and including main access area, the first clearance zone, the second clearance zone and extension access area, wherein the first clearance zone is located at least in the first side of substrate, and the second clearance zone is located at least in the second side of substrate.Extend from main access area and be in close proximity between the first clearance zone and the second clearance zone in extension access area.Antenna configuration is in the first clearance zone and by the first corner, and make the electric current produced on main access area that there are two dimension directions, antenna is set to produce a variety of polarization effects simultaneously, effectively improve the field pattern and polarization characteristic of antenna, and then greatly improve the communication quality of antenna assembly, wherein the first end of the radiation arm of antenna is than the second end close to the first corner, and feed connects the first end for being located proximate to radiation arm of radiation arm.

Description

Antenna assembly

Technical field

The present invention relates to a kind of antenna assembly, more particularly to a kind of there is omni-directional field pattern and multipolarization effect can be produced Antenna assembly.

Background technology

In recent years, with the progress of integrated circuit technique so that radio communication device more shape is light, thin, short, small, how to tie Circuit board is closed to design built-in aerial will be a big technological challenge.However, built-in aerial radiation pattern easily because circuit size, The limitation of ground plane configuration, and influence the quality of communication.In common antenna structure, plane inverse F type (PIFA) antenna and list Pole (monopole) antenna is to produce resonance mode based on quarter-wave resonance mechanism, in the electric current produced by ground plane The field pattern and polarization characteristic of antenna can significantly be influenceed.Therefore, how by changing the electric current of ground plane to optimize the logical of antenna Letter quality is highly important problem.

The content of the invention

The present invention provides a kind of antenna assembly, can effectively improve the field pattern and polarization characteristic of antenna, and then greatly improve The communication quality of antenna assembly.

The antenna assembly of the present invention includes substrate and antenna, wherein substrate, with first side with a second side, the One side and second side form the first corner.Substrate includes main access area, the first clearance zone, the second clearance zone and extension Access area.First clearance zone is located at least in first side.Second clearance zone is located at least in second side.Extension access area connects from master Extend and be in close proximity between the first clearance zone and the second clearance zone in area.Antenna is located at by the first corner, and net first Dead zone projection in the plane be located in the first clearance zone.Antenna includes feed and radiation arm.The first end of feed With load point.Radiation arm, there is first end and the second end, and the wherein first end of radiation arm is presented than the second end close to the first corner The second end for entering part connects the first end for being located proximate to radiation arm of radiation arm.

Based on above-mentioned, it can make the electric current produced on main access area that there are two dimension directions, while it is a variety of to produce antenna Polarization effect, and effectively improve the field pattern and polarization characteristic of antenna, and then the communication quality of antenna assembly is greatly improved, wherein The first end of the radiation arm of antenna is than the second end close to the first corner, and the second end connection radiation arm of feed is located proximate to The first end of radiation arm.

For the features described above and advantage of the present invention can be become apparent, special embodiment below, and it is detailed to coordinate accompanying drawing to make Carefully it is described as follows.

Brief description of the drawings

Figure 1A is the schematic diagram of the antenna assembly according to one embodiment of the invention；

Figure 1B is the floor map of the substrate of the antenna assembly according to Figure 1A embodiments；

Fig. 2 is the schematic diagram of the antenna assembly according to another embodiment of the present invention；

Fig. 3 is the antenna patterns illustrated schematic diagram along the bearing of trend of load plane according to Figure 1A and the antenna of Figure 1B embodiments；

Fig. 4 A are the schematic diagrames of the antenna assembly according to another embodiment of the present invention；

Fig. 4 B are the floor map of the substrate of the antenna assembly according to Fig. 4 A embodiments；

Fig. 5 is the schematic diagram of the antenna assembly according to another embodiment of the present invention；

Fig. 6 is the floor map of the substrate of the antenna assembly according to Fig. 5 embodiments；

Fig. 7 is the floor map of the substrate of the antenna assembly according to another embodiment of the present invention；

Fig. 8 is antenna patterns illustrated schematic diagram of the antenna along the bearing of trend of load plane according to Fig. 5 embodiments；

Fig. 9 is the schematic diagram of the antenna assembly according to another embodiment of the present invention；

Figure 10 is antenna patterns illustrated schematic diagram of the antenna along the bearing of trend of load plane according to Fig. 9 embodiments.

Reference：

100、400、500、900：Antenna assembly；

102：Main access area；

104：Antenna；

106、402：Extend access area；

108：Substrate；

110、112：Clearance zone；

F1：Load plane；

F2：Horizontal plane；

F3：Non-horizontal surface；

C1、C2、C3、C3’：Corner；

104-1：Radiation arm；

104-2：Feed；

104-3：Short-circuit part；

FD1：Load point；

SD1~SD6, S1, S2：Side.

Embodiment

Figure 1A is the schematic diagram of the antenna assembly according to one embodiment of the invention, and Figure 1B is the day according to Figure 1A embodiments The floor map of the substrate of line apparatus, refer to Figure 1A and Figure 1B.Antenna assembly 100 includes antenna 104 and substrate 108. Substrate 108 has side SD1 and side SD2, side SD1 and side SD2 formation corner C1, and substrate 108 simultaneously connects including master Area 102, extension access area 106, clearance zone 110 and clearance zone 112.Wherein clearance zone 110 does not include connecing with clearance zone 112 Ground element, clearance zone 110 is located at least in side SD1 position, and clearance zone 110 is located at least in side SD2 position, and citing comes Say, in Figure 1A and Figure 1B embodiment, clearance zone 110 and clearance zone 112 are oblique line shading part, it is notable that In the present embodiment, clearance zone 110 is located at side SD1 and extends to another side adjacent with side SD1, and implements in part In example, clearance zone 110 also can be only located at side SD1 and be not extend to opposite side side.Main access area 102, which has, forms corner C2's Side SD3 and side SD4, side SD3 it is parallel with side SD1 and with clearance zone 110 close to, side SD4 it is parallel with side SD2 and With clearance zone 112 close to.Extend from main access area 102 and be in close proximity to clearance zone 110 and clearance zone in extension access area 106 Between 112, extension access area 106 can be located at by the C2 of corner shown in such as Figure 1A.Main access area 102 can with extension access area 106 Comprising conductor layer (such as copper, iron, are so not limited), conductor layer can for example be configured at the surface of substrate 108 (such as Figure 1A institutes Show) or internal layer.For example, substrate 108 may be, for example, printed circuit board (PCB), and main access area 102 is then with extension access area 106 Printed circuit board surface or the conductor layer of internal layer are arranged at printing treatment, but are not limited.

In addition, antenna 104 is configured at by the first corner, and clearance zone 110 projection in the plane be located at clearance zone In 110, and can as antenna 104 antenna windows, wherein clearance zone 110 includes the border of clearance zone 110.Antenna 104 can be such as It is attached on substrate 108, for example, is printed on printing treatment on printed circuit board (PCB), in other embodiments, antenna 104 also may be used For example implemented with ironware antenna or antenna component, and be not limited to printing type aerial.Wherein antenna 104 is based on quarter-wave Long resonance mechanism produces resonance mode, and antenna 104 may be, for example, planar inverted F-shape antenna or unipole antenna, in the present embodiment To be illustrated by taking planar inverted F-shape antenna as an example, its centre frequency may be, for example, 2.4G Hz or 5G Hz, and can be applied to The difference communication system such as WiFi, Zigbee, Bluetooth, DECT, Z-Wave, LTE, but be not limited.

In Figure 1A and Figure 1B embodiment, antenna assembly 100 is suitable to stand on load plane or with respect to the horizontal plane Upright mode is fixed on the transmitting-receiving that non-horizontal surface (such as wall) carries out aerial signal, to be communicated.For example, carry Plane F1 can be for example horizontal table top, and antenna assembly 100 is suitable to stand on load plane F1, now substrate 108 perpendicular to Load plane F1.In another example, Fig. 2 is the schematic diagram of the antenna assembly of another embodiment of the present invention, in Fig. 2 embodiments, antenna Device 100 can be also fixed on a non-horizontal surface F3 relative to imaginary horizontal plane F2 in upright mode.In Fig. 2 embodiments In, non-horizontal surface F3 (it may be, for example, wall) is worth note perpendicular to horizontal plane F2, now substrate 108 perpendicular to horizontal plane F2 Meaning, in other embodiments, non-horizontal surface F3 can also be not perfectly perpendicular to horizontal plane F2, and non-horizontal surface F3 also may be, for example, Curved surface, an or angle for being not equal to 90 degree is folded with horizontal plane F2, and antenna assembly 100 in this case also relative to Mode upright imaginary horizontal plane F2 is fixed on wall F3 that (antenna assembly 100 can be vertical perpendicular to horizontal plane F2 or rough In horizontal plane F2).For convenience of description, example below mainly stands on the load plane of Figure 1A embodiments with antenna assembly 100 F1 situation is illustrated.

Main access area 102 is perpendicular to load plane F1 (being perpendicular to horizontal plane F2 in Fig. 2 embodiments), the angle of substrate 108 Fall C1 away from load plane F1 (being horizontal plane F2 in Fig. 2 embodiments).Antenna 104 is configured at by the C1 of corner, for example, be configured at angle Fall C2 top.Furthermore, it is understood that antenna 104 may include radiation arm 104-1, feed 104-2 and short-circuit part 104-3, its The a quarter for the radio frequency signal frequency that the resonance path of middle feed 104-2 and radiation arm 104-1 formation is received and dispatched for antenna 104 The integral multiple of wavelength.Radiation arm 104-1 has a first end and the second end, and radiation arm 104-1 first end is than the second end close to angle Fall C1, feed 104-2 first end has load point FD1, to receive FD feed, short-circuit part 104-3 first end connects Connect main access area 102.In addition, feed 104-2 is connected radiation arm 104-1, and short-circuit part with short-circuit part 104-3 the second end First ends (i.e. short circuit part 104-3 connection radiation arm 104-1 close to corner C1 side) of the 104-3 close to radiation arm 104-1.More Furthermore, it is understood that radiation arm 104-1 can such as parallel sides SD1, short-circuit part 104-3 first end connection side SD3, extension connects Area 106 may be, for example, rectangular configuration, and positioned at corner C1.Extend a wherein main access area of corner C3 connections for access area 106 102 corner C2, specifically, the corner C3 of extension access area 106 have a side S1 and side S2, a side S1 part and Side SD4's is a part of overlapping, and portion partially larger than overlapping with side SD4 side S1 not overlapping with side SD4 side S1 Point.Though it is worth noting that, the extension access area 106 of the present embodiment is implemented with rectangle, being not limited thereto, implement other In example can also other shapes implement.

Fig. 3 is the antenna patterns illustrated schematic diagram along the bearing of trend of load plane according to Figure 1A and the antenna of Figure 1B embodiments, As shown in figure 3, by the way that extension access area 106 is configured at into the corner C1 of substrate 108, and the manner described above of antenna 104 is matched somebody with somebody The position of the corner C1 of close substrate 108 in clearance zone 110 is placed in, can make the electric current produced on main access area 102 that there are two Dimension direction (as shown in Figure 1A and Figure 1B, wherein a sense of current is parallel with load plane F1 normal direction, another electric current Direction it is parallel with load plane F1), just can so improve the field pattern uniformity of antenna 104, make it have the day of isotropic directivity Field of line type, while can also produce a variety of polarization effects (such as horizontal polarization, vertical polarization, circular polarisation polarization effect), effectively Multi-path (multipath) signal is received and dispatched, and the communication quality of antenna assembly 100 is significantly increased.

Fig. 4 A are the schematic diagrames of the antenna assembly according to another embodiment of the present invention, and Fig. 4 B are the days according to Fig. 4 A embodiments The floor map of the substrate of line apparatus, refer to Fig. 4 A and Fig. 4 B.The difference of Fig. 4 A embodiments and Figure 1A embodiments exists In, in the antenna assembly 400 of Fig. 4 A embodiments, the corner C3 ' of extension access area 402 is formed by side SD5 with side SD6, And side SD5 and the side SD4 of main access area 102 partly overlap, side SD6 then folds an angle, example with side SD4 in addition As in the present embodiment, side SD6 and side SD4 folds 45 degree.As shown in Figure 4 A and 4 B shown in FIG., by by with the side of the present embodiment Formula configuration extension access area 402, and antenna 104 is configured at the position by the C2 of corner, it can be flowed in being produced on main access area 102 The electric current in load plane F1 direction and the electric current parallel with load plane F1, i.e., in the present embodiment, on main access area 102 The electric current of generation also has two dimension directions, and can improve the field pattern uniformity of antenna 104, makes it have the day of isotropic directivity Field of line type, while producing a variety of polarization effects, is significantly increased the communication quality of antenna assembly 100.

Similarly, the extension access area 402 of the present embodiment can also be different geometry component is implemented, but need to have The side SD6 being positioned at an angle with side SD4 phases, to produce the electric current in the direction for flowing to load plane F1.In addition, Fig. 4 A embodiments Antenna assembly 400 also can be as Fig. 2 embodiments, suitable for being fixed on non-horizontal surface in the upright modes of with respect to the horizontal plane F2 (such as wall) carries out the transmitting-receiving of aerial signal, to be communicated, and the other components of antenna assembly 400 can be for example with Fig. 2 in addition The mode of embodiment is implemented, and will not be repeated here.

Fig. 5 is the schematic diagram of the antenna assembly according to another embodiment of the present invention, refer to Fig. 5.In the present embodiment, day Line apparatus 500 is suitable to parallel to horizontal plane (such as the horizontal plane F2 of Fig. 2 embodiments, substrate 108 is parallel to horizontal plane F2) Mode is positioned over load plane F1, the transmitting-receiving of aerial signal is carried out, to be communicated.Due to the antenna assembly 500 of the present embodiment There is similar structure with Figure 1A antenna assembly 100, to keep accompanying drawing succinct, the symbol of main element is only shown in Figure 5, The representative symbol of the element of non-tag can refer to Figure 1A in Fig. 5.The present embodiment and the maximum difference of Figure 1A embodiments Be, the configuration mode of the antenna 104 of the present embodiment be perpendicular to or it is rough perpendicular to substrate 108, furthermore, it is understood that this implementation Plane where the radiation arm and feed of the antenna 104 of example be perpendicular to or it is rough perpendicular to substrate 108, rather than as Figure 1A is real Apply and substrate 108 is attached at as example and parallel with substrate 108.Fig. 6 is that the plane of the substrate of the antenna assembly according to Fig. 5 embodiments is shown It is intended to, as shown in fig. 6, antenna 104 is configured at the border of main access area 102 and clearance zone 110, because Fig. 6 is from antenna assembly The schematic diagram of substrate 180 is overlooked in 500 top, therefore the pattern of a strip is presented in antenna 104 in figure 6.It is worth noting that, In some embodiments, antenna 104 can be also configured in closer to the position inside clearance zone 110.For example, Fig. 7 be according to According to the floor map of the substrate of the antenna assembly of another embodiment of the present invention, as shown in fig. 7, main access area 102 may include to The extension 702 of the extension protrusion of clearance zone 110, antenna 104 can be configured in the position having a common boundary in clearance zone 110 with extension 702 Put, wherein the short-circuit part of antenna 104 can be connected by extension 702 and is grounded with main access area 102.

Fig. 8 is antenna patterns illustrated schematic diagram of the antenna along the bearing of trend of load plane according to Fig. 5 embodiments, such as Fig. 8 institutes Show, because the electric current produced on main access area 102 has two dimension directions, and improve the field pattern uniformity of antenna 104, make it Antenna patterns illustrated with isotropic directivity, while can also produce a variety of polarization effects, effectively receives and dispatches multi-path signals, and significantly Ground improve the standard storing antenna assembly 500 communication quality.

Fig. 9 is the schematic diagram of the antenna assembly according to another embodiment of the present invention, refer to Fig. 9.In the present embodiment, day The similar antenna assembly 500 of line apparatus 900, is also suitable for being positioned over load plane F1 in the way of parallel to horizontal plane, carries out antenna The transmitting-receiving of signal, to be communicated.Because the antenna assembly 900 of the present embodiment and Fig. 4 A antenna assembly 400 are with similar Structure.Similarly, to keep accompanying drawing succinct, the member of non-tag in the symbol of main element, Fig. 9 is also only shown in fig .9 The representative symbol of part can refer to Fig. 4 A.The present embodiment and the maximum difference of Fig. 4 A embodiments be, the antenna of the present embodiment 104 configuration mode be perpendicular to or it is rough perpendicular to substrate 108, rather than be attached at such as Fig. 4 A embodiments substrate 108 and with Substrate 108 is parallel, in addition, the antenna 104 of the present embodiment also can such as Fig. 6 with Fig. 7 embodiments are well matched is placed in clearance zone 110 and master The position that access area 102 has a common boundary.Figure 10 is shown according to antenna patterns illustrated of the antenna along the bearing of trend of load plane of Fig. 9 embodiments It is intended to, as shown in Figure 10 due to producing the electric current with two dimension directions on main access area 102, and antenna 104 can be improved The field pattern uniformity, makes it have the antenna patterns illustrated of isotropic directivity, while producing a variety of polarization effects, level storing is significantly increased Antenna assembly 900 communication quality.

In summary, the embodiment of the present invention is on antenna, main access area, the first clearance zone, the second clearance zone and extension The configuration of access area can make the electric current produced on main access area have two dimension directions, while making antenna produce a variety of polarization effects Really, and effectively improve the field pattern and polarization characteristic of antenna, and then greatly improve the communication quality of antenna assembly.

Although the present invention is disclosed above with embodiment, so it is not limited to the present invention, any art Middle those of ordinary skill, without departing from the spirit and scope of the present invention, when can make a little change and retouching, therefore the present invention Protection domain is defined when the confining spectrum depending on appended claims.

Claims

1. a kind of antenna assembly, it is characterised in that including：

Substrate, with first side and second side, the first side and the second side form the first corner, institute Stating substrate includes：

Main access area；

First clearance zone, is located at least in the first side；

Second clearance zone, is located at least in the second side；And

Extend access area, from the main access area extend and be in close proximity to first clearance zone and second clearance zone it Between；And

Antenna, by first corner, and first clearance zone projection in the plane to be located at described first net In dead zone, the antenna includes：

Feed, its first end has load point；And

Radiation arm, with first end and the second end, wherein the first end of the radiation arm is more close than the second end of the radiation arm First corner, the second end of the feed connects the first end for being located proximate to the radiation arm of the radiation arm.

2. antenna assembly according to claim 1, it is characterised in that the extension access area is rectangular, and positioned at described First corner.

3. antenna assembly according to claim 1, it is characterised in that the parallel first side of the radiation arm.

4. antenna assembly according to claim 1, it is characterised in that the main access area has form the second corner the Three sides and four side, the 3rd side it is parallel with the first side and with first clearance zone close to described the Four side is parallel with the second side and is located at second corner close to, the extension access area with second clearance zone Side, the antenna is located at by second corner.

5. antenna assembly according to claim 4, it is characterised in that the extension access area has the 5th adjacent side With the 6th side, wherein the 5th side is close to the four side, the 6th side folds one with the 5th side Individual angle.

6. antenna assembly according to claim 1, it is characterised in that the feed and the plane where the radiation arm Perpendicular to the substrate.

7. antenna assembly according to claim 6, it is characterised in that the antenna assembly is suitable to parallel to horizontal plane Mode is positioned over load plane, and the substrate-parallel is in the horizontal plane.

8. antenna assembly according to claim 1, it is characterised in that the main access area includes with the extension access area Conductor layer, the conductor layer is attached at the substrate surface or is embedded in the substrate.

9. antenna assembly according to claim 1, it is characterised in that the antenna is planar inverted F-shape antenna or monopole day Line.

10. antenna assembly according to claim 1, it is characterised in that the feed and being total to that the radiation arm is formed Shake quarter-wave integral multiple of the path for the radio frequency signal frequency of antenna transmitting-receiving.