CN206148622U - Slot antenna - Google Patents
Slot antenna Download PDFInfo
- Publication number
- CN206148622U CN206148622U CN201620721171.8U CN201620721171U CN206148622U CN 206148622 U CN206148622 U CN 206148622U CN 201620721171 U CN201620721171 U CN 201620721171U CN 206148622 U CN206148622 U CN 206148622U
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- crack
- leaky antenna
- electric capacity
- antenna
- leaky
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Abstract
The utility model discloses a slot antenna who can be used to the mobile communication field. Mobile terminal can adopt slot antenna realizes communication. Slot antenna includes antenna frame and first electric capacity, antenna frame is last to have the crack, fissured length is less than the half -wavelength of radio, first electric capacity cross -over connection is in between the crack. The utility model discloses slot antenna has realized still keeping good communication performance when crack size is less than the operating wavelength of half radio for the size is littleer, the structure is compacter and saved the material.
Description
Technical field
This utility model is related to communication antenna technical field, particularly a kind of leaky antenna.
Background technology
Leaky antenna, can be referred to as slot antenna or slot antenna again.Slot antenna be generally used for microwave band radar,
In the equipment such as navigation, electronic countermeasure and communication, and it is particularly suitable for being used on high-speed aircraft because conformal structure can be made.
Leaky antenna is made on metal covering, classical method requires that the length in crack should be equal to or more than half wireless operating wave
It is long.Thus, leaky antenna of the prior art often limits application scenario because size is larger.Particularly in mobile terminal
Field, for example mobile phone, people are for the requirement more and more higher of volume.People need the mobile terminal device of light weight, small volume,
Consequently facilitating carrying.
Utility model content
One of the purpose of this utility model is to overcome deficiency of the prior art, there is provided a kind of size is little, communicativeness
Can preferably leaky antenna.
To realize object above, this utility model is achieved through the following technical solutions：
This utility model provides a kind of leaky antenna.The leaky antenna includes antenna frame and the first electric capacity；The day
There is crack on line skeleton；The length in the crack is less than wireless half-wavelength；First electric capacity is connected across the crack
Between.
Preferably, the operating frequency of the leaky antenna is set to scalable.
Preferably, the leaky antenna also includes the second electric capacity and switch；Second electric capacity be connected across the crack it
Between；Any one of the switch connect setting in first electric capacity and the second electric capacity is between the crack.
Preferably, the leaky antenna also includes control module；The control module is connected with the switch, to control
State and switch on-off.
Preferably, the switch is electrical switch.
Preferably, the leaky antenna also includes the first inductance；First inductance is connected across between the crack.
Preferably, the leaky antenna also includes the second inductance；Second inductance is connected across between the crack.
Preferably, the width in the crack is less than wireless quarter-wave.
Preferably, the two opposite sides in the crack are provided with the first current feed department and the second current feed department.
Preferably, the communication frequency of the leaky antenna is 470MHZ.
This utility model also provides a kind of mobile terminal.The mobile terminal include it is aforementioned any one of crack day
Line.
Compared with prior art, this utility model leaky antenna is realized and is less than half wireless work in flaw size
Good communication performance is remained in that during wavelength so that smaller, more compact structure and save material.The leaky antenna
Operating frequency adjustment can also be realized by the break-make of inductance and electric capacity, so as to have bigger universal performance, the scope of application
It is wider.
Description of the drawings
Fig. 1 is the cross section structure schematic diagram of one of the embodiment of this utility model leaky antenna.
Fig. 2 is the cross section structure schematic diagram of the two of the embodiment of this utility model leaky antenna.
Fig. 3 is the cross section structure schematic diagram of the one of which size in the crack of the leaky antenna of Fig. 2.
The schematic diagram of the voltage standing wave ratio that Fig. 4 is obtained for the leaky antenna of Fig. 3 after being emulated.
The E faces directional diagram that Fig. 5 is obtained for the leaky antenna of Fig. 3 after being emulated.
The H faces directional diagram that Fig. 6 is obtained for the leaky antenna of Fig. 3 after being emulated.
Fig. 7 is the cross section structure schematic diagram of the three of the embodiment of the leaky antenna of Fig. 2.
Fig. 8 is the cross section structure schematic diagram of the four of the embodiment of this utility model leaky antenna.
Specific embodiment
This utility model is described in detail below in conjunction with the accompanying drawings：
Embodiment one：
Fig. 1 is referred to, a kind of schematic cross-section of its leaky antenna 100 provided for this utility model.The crack day
Line 100 includes antenna frame 1 and crack 2.The electrically conductive medium substrate of the antenna frame 1.The crack 2 is opened in the day
On line skeleton 1.The crack 2 has the length of L signs as shown.Length L in the crack 2 is less than or former wireless less than half
Electric operation wavelength.In the present embodiment, the crack 2 is shaped as rectangle.It should be noted that mentioned in this utility model
Half-wavelength be the leaky antenna 100 for communication electromagnetic wave half-wavelength.The crack 2 bridges and (connects crack 2
Both sides) have electric capacity C.The capacitance and concrete bridge position of the electric capacity C is carried out accordingly according to operating frequency, application conditions
Select.In the present embodiment, the electric capacity C is connected across 3/5ths length in the crack 2 between 4/5ths length
Position.Now, the service behaviour of the leaky antenna 100 is preferable.
The present embodiment has carried out corresponding emulation to verify feasibility and actual effect.It is described that the present embodiment emulation is adopted
It is 470MHZ that leaky antenna 100 is used for the frequency of the electromagnetic wave of communication.Bandwidth of operation is 2MHZ.Metal shell crack be 150 ×
10mm.The a length of 638.3mm of the corresponding radio waves of 470MHZ, a length of 319.1mm of half-wave, length 150mm of crack 2 is also less than four points
One of wavelength.That is to say, as one kind mode is preferably carried out, in the present embodiment, length L in the crack 2 less than four/
One wavelength.
In the present embodiment, the first current feed department A and the second current feed department B is also respectively provided with the both sides in the crack 2.Can be with
It is contemplated that current feed department, also referred to as distributing point, or feed point.The setting root of the first current feed department A and the second current feed department B
Select according to institute's operating frequency, application conditions.In the present embodiment, the first current feed department A is just right with two current feed department B, and
/ 10th length in the crack 2 are arranged on between 1/8th length.It is envisioned that radiofrequency signal is from institute
State the first current feed department A and the second current feed department B bursts into electromagnetic wave radiate along the both sides in crack 2.
Embodiment two：
Fig. 2 to 6 is referred to, the present embodiment two is with the difference of embodiment one：The crack day that embodiment two is provided
The operating frequency of line 100 can be adjusted.Specifically, the leaky antenna 100 realizes that operating frequency is adjusted using inductance L.It is described
Inductance L is connected across between the crack 2, so that the operating frequency of the leaky antenna 100 changes.The inductance L
Inductance value the operating frequency that adjusts as needed of size and select.For example, the inductance value of the inductance L can be with 80NH.
The effect that the carrying out of this utility model leaky antenna 100 emulates is illustrated below in conjunction with the accompanying drawings：See also Fig. 4,
It is this utility model artificial small leaky antenna standing wave pattern.The Fig. 4 is illustrated, when band standing internal wave is less than 3, with a width of 7M.Electricity
Pressure standing-wave ratio (Voltage Standing Wave Ratio, VSWR), can be also simply referred to as standing-wave ratio.Fig. 5 is imitative for this utility model
True miniaturization leaky antenna E faces directional diagram.Fig. 5 illustrates E faces maximum gain (Gain) for 4.5dB, and 3dB beam angles (Pha)
For 118 degree (deg).Fig. 6 is artificial small leaky antenna H faces directional diagram.Fig. 6 illustrates H faces maximum gain for 4.5dB, and 3dB
Beam angle is 66 degree.It is to be understood that the face on the far field greatest irradiation direction that refers to of E faces with electric field vector parallel, H faces
It is perpendicular face.
Embodiment three：
Fig. 7 is seen also, in another kind of implementation (for example product of actual batch production), the leaky antenna
100 include the first inductance L1 and the second inductance L2.In the present embodiment, the first inductance L1 and the second inductance L2 are bridged respectively
On crack 2.Electric capacity C is arranged between the first inductance L1 and the second inductance L2.
Example IV：
Fig. 8 is seen also, the present embodiment four is with the difference of embodiment two：The crack day that example IV is provided
Line 100 realizes that the specific implementation that operating frequency is adjusted is different.The leaky antenna 100 of the present embodiment four is by arranging switch K
To control the break-make of electric capacity C.Specifically, the first electric capacity C1 and the second electric capacity C2 is provided between the crack 2.The K and
Any one connection in one electric capacity C1, the second electric capacity C2, with any one in controlling the first electric capacity C1, the second electric capacity C2
Break-make, so that the leaky antenna 100 can switch between two kinds of different operating frequencies, is needed with adapting to different communications
Ask.The switch K can be electrical switch, so as to facilitate control.The leaky antenna 100 also includes control module (in figure not
Illustrate).The control module is used to control the break-make of the switch K.It is envisioned that the control module can be monolithic
Machine.
The size in the antenna frame 1 marked in diagram and crack 2 is specifically described below：The length of antenna frame 1 is
200mm, width is 50mm.Length d in crack 2 is 150mm, and width W is 10mm.The crack 2 is arranged on the antenna frame 1
Middle part obtaining balanced, stable communication performance.
Embodiment five：
This utility model also provides a kind of mobile terminal (not shown).The mobile terminal includes aforesaid crack day
Line 100.The mobile terminal can be mobile phone (i.e. mobile phone).The mobile terminal is realized by the leaky antenna 100
Communication.The leaky antenna 100 is the metal shell of the closing of mobile terminal.
This utility model preferred embodiment is these are only, is not used to limit to protection domain of the present utility model, it is any
Modification, equivalent or improvement in this utility model spirit etc., all cover in right of the present utility model.
Claims (10)
1. a kind of leaky antenna, it is characterised in that：The leaky antenna includes antenna frame and the first electric capacity；The antenna frame
It is upper that there is crack；The length in the crack is less than wireless half-wavelength；First electric capacity is connected across between the crack.
2. leaky antenna according to claim 1, it is characterised in that：The operating frequency of the leaky antenna is set to adjustable
Section.
3. leaky antenna according to claim 2, it is characterised in that：The leaky antenna also includes the second electric capacity and opens
Close；Second electric capacity is connected across between the crack；The switch connect setting is in first electric capacity and the second electric capacity
Any one between the crack.
4. leaky antenna according to claim 3, it is characterised in that：The leaky antenna also includes control module；It is described
Control module is connected with the switch, to control described switching on-off.
5. leaky antenna according to claim 3, it is characterised in that：The switch is electrical switch.
6. leaky antenna according to claim 2, it is characterised in that：The leaky antenna also includes the first inductance；It is described
First inductance is connected across between the crack.
7. leaky antenna according to claim 6, it is characterised in that：The leaky antenna also includes the second inductance；It is described
Second inductance is connected across between the crack.
8. leaky antenna according to any one of claim 1 to 7, it is characterised in that：The width in the crack is less than nothing
The quarter-wave of line electricity.
9. leaky antenna according to any one of claim 1 to 7, it is characterised in that：The two opposite sides in the crack set
It is equipped with the first current feed department and the second current feed department.
10. leaky antenna according to claim 1, it is characterised in that：The communication frequency of the leaky antenna is 470MHZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721171.8U CN206148622U (en) | 2016-07-11 | 2016-07-11 | Slot antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721171.8U CN206148622U (en) | 2016-07-11 | 2016-07-11 | Slot antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206148622U true CN206148622U (en) | 2017-05-03 |
Family
ID=58616823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620721171.8U Active CN206148622U (en) | 2016-07-11 | 2016-07-11 | Slot antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206148622U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611618A (en) * | 2016-07-11 | 2018-01-19 | 上海杰盛康通信工程有限公司 | Leaky antenna |
| CN109728408A (en) * | 2017-10-31 | 2019-05-07 | 华为终端（东莞）有限公司 | A kind of antenna and mobile terminal |
-
2016
- 2016-07-11 CN CN201620721171.8U patent/CN206148622U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611618A (en) * | 2016-07-11 | 2018-01-19 | 上海杰盛康通信工程有限公司 | Leaky antenna |
| CN109728408A (en) * | 2017-10-31 | 2019-05-07 | 华为终端（东莞）有限公司 | A kind of antenna and mobile terminal |
| US11515633B2 (en) | 2017-10-31 | 2022-11-29 | Huawei Technologies Co., Ltd. | Antenna and mobile terminal |
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