CN102570012A - Base plate with slot antenna - Google Patents
Base plate with slot antenna Download PDFInfo
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- CN102570012A CN102570012A CN2010106191786A CN201010619178A CN102570012A CN 102570012 A CN102570012 A CN 102570012A CN 2010106191786 A CN2010106191786 A CN 2010106191786A CN 201010619178 A CN201010619178 A CN 201010619178A CN 102570012 A CN102570012 A CN 102570012A
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- slot antenna
- substrate
- antenna
- base plate
- slit
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Abstract
The invention discloses a base plate with a slot antenna. The base plate comprises an insulating base plate, a conducting layer and a feeder wire, wherein the conducting layer is arranged at one side of the insulating base plate and is provided with the slot antenna, and the feeder wire is arranged at the other side of the insulating base plate and is correspondingly arranged under the slot antenna. The base plate with the slot antenna has the advantages that the slot antenna is integrated on the base plate, so the antenna size can be precisely controlled, and the work efficiency is precisely controlled at higher work frequency band. In addition, the antenna is integrated on the base plate, so the step for singly manufacturing the antenna is omitted, the production link is reduced, the production efficiency is improved, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of substrate, particularly relate to a kind of substrate that is used for portable terminal with slot antenna with slot antenna.
Background technology
At present in field of wireless transmission; Transmission means commonly used is divided into and mainly contains following several kinds; First kind of IEEE802.15, i.e. Bluetooth transmission mode, this mode works in the 2.4GHz frequency range; The highest transmission rate that can support of its 2.1 enhanced data rate (EDR) version is 2～3Mbps, thereby in order to satisfy closely transfer of data demand; Second kind of IEEE802.11b, i.e. WIFI (wireless fidelity Wireless Fidelity) transmission means, this mode works in the 2.4GHz frequency range equally, the highest transmission rate that can support 11Mbps, thereby in order to satisfy remote transfer of data requirement.
But Along with people's improves constantly the transfer of data rate requirement; Continuous increase to the transfer of data area requirement; The IEEE802.11a standard of wireless transmission will become the developing direction of following Radio Transmission Technology, and IEEE802.11a belongs to extensive WIFI category, and work is 5～6GHz frequency range; Its message transmission rate is up to 54Mbps, and transmission range reaches 30～50 meters.
Because the raising of working frequency range, thereby the antenna of transmission has been proposed new requirement,, required antenna size to reduce, thereby the precision of the size of antenna etc. has been had higher requirement promptly along with the raising of operating frequency.Thereby steel disc antenna and FPC antenna commonly used has been difficult to satisfy the required precision to antenna in the portable terminal; And along with the steel disc antenna commonly used and the size of FPC antenna reduce; Improved and made the technology difficulty of antenna and reduced rate of finished products, thereby manufacturing cost also rises thereupon
Summary of the invention
The technical problem that the present invention will solve be for the precision of steel disc antenna that overcomes portable terminal in the prior art or FPC antenna low; Can't accurately reach the defective of the operating frequency of 5～6GHz; A kind of substrate with slot antenna is provided; Through using slot antenna to reach the precision control of higher antenna, and effectively reduce production cost.
The present invention solves above-mentioned technical problem through following technical proposals:
The invention provides a kind of substrate with slot antenna, it comprises an insulated substrate, is characterized in that said substrate with slot antenna also comprises:
One conductive layer, said conductive layer are arranged at a side of insulated substrate, and have a slit;
One feed line, said feed line is arranged at the opposite side of insulated substrate, and correspondence is arranged under the said slit.
Preferably, said conductive layer is at an end opening in said slit.
Preferably, said insulated substrate is a pcb board.
Preferably, the electrical length in said slit be said substrate with slot antenna operating frequency of antenna wavelength 1/8.
Preferably, said operating frequency of antenna is 5.8GHz.
Preferably, said slit is a rectangle.
Preferably, said feed line is through the slit coupling energy of said conductive layer.
Preferably, the material of said conductive layer and feed line is a metal.
Preferably, said metal is a copper.
Positive progressive effect of the present invention is:
Substrate with slot antenna of the present invention, through integrated slot antenna on substrate, thus the size of control antenna accurately; Thereby reach the operating frequency of higher working frequency range and accurate control antenna; In addition since antenna be integrated on the substrate, thereby omitted the step of independent making antenna, thereby reduced the link of producing; Improve production efficiency, reduced production cost.
Description of drawings
Fig. 1 is the front view of the preferred embodiment of the substrate with slot antenna of the present invention.
Fig. 2 is the rearview of the preferred embodiment of the substrate with slot antenna of the present invention.
Fig. 3 is the antenna reflection coefficient figure of the preferred embodiment of the substrate with slot antenna of the present invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technical scheme of the present invention.
Shown in Figure 1 for the front view with substrate of slot antenna of the present invention, as shown in Figure 1, the conductive layer 2 that is arranged on insulated substrate 1 front has a slit 21, and an end of 21 has opening 22 to said conductive layer 2 in the slit.Said in addition slit 21 is a rectangle.Those skilled in the art can adjust shape or the structure that resonance frequency perhaps is used to adapt to substrate through the shape that changes slit 21 according to the actual needs and the requirement of slot antenna.
Shown in Figure 2 is the rearview with substrate of slot antenna of the present invention, and as shown in Figure 2, the back side of insulated substrate 1 is provided with a feed line 3, and said feed line 3 is in the position of corresponding said slit 21, position on substrate front side at insulated substrate 1 back side.Those skilled in the art can be according to actual needs and requirement, through the position corresponding relation between adjustment feed line 3 and the slit 21, thereby controls the emission effciency etc. of whole slot antenna.
In the present embodiment, what described insulated substrate adopted is pcb board (printed circuit board (PCB)), and those skilled in the art can adopt other kinds, the insulated substrate of model or standard, the for example substrate of the JIS standard of glass substrate etc. or Japan etc.
The length L in slit described in the present embodiment 21
1Be 7 millimeters, width W
1Be 0.8 millimeter, thereby make that the operating frequency of the slot antenna in the present embodiment is 5.8GHz, and the electrical length in said slit 21 be said slot antenna operating frequency wavelength 1/8.Said slit 21 is used for coupling energy to feed line 3.Those skilled in the art can change the length and the width in slit 21 according to the requirement of the needs of the working frequency range of selecting and wireless transmission standards and adjust corresponding slot antenna operating frequency, for example works as the length L in slit 21
1Be 6 millimeters, width W
1When being 0.8 millimeter, can regulate the slot antenna operating frequency is 5.2GHz.
The length L of the opening 22 of conductive layer described in the present embodiment 2
2Be 1 millimeter, width W
2It is 1.5 millimeters.Described opening 22 is used on the basis of the length that does not increase slot antenna, increases the electrical length of slot antenna, and strengthens emission effciency.Those skilled in the art can change length and the width of opening 22 and the emission effciency that shape is adjusted corresponding slit.
The length L of the feed line 3 in the present embodiment
3Be 2.7 millimeters, width W
3It is 0.3 millimeter.Described feed line 3 is used for slit 21 coupling energies through said conductive layer 2.Through the size setting like above-mentioned slot antenna, the antenna reflection coefficient S11 of the emulation of slot antenna is as shown in Figure 3 in the present embodiment, and wherein S11 is-22.54db when 5.8GHz, so satisfy the requirement of IEEE802.11a standard fully.Wherein the antenna reflection coefficient S11 shown in Figure 3 in the present embodiment obtains through (Ansoft company) HFSS emulation.Those skilled in the art can promptly adjust standing-wave ratio, antenna reflection coefficient and the emission effciency etc. of slot antenna through the length of change feed line 3 and the resonance degree of depth of the slot antenna that width is adjusted present embodiment.
Though more than described embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited appended claims.Those skilled in the art can make numerous variations or modification to these execution modes under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (9)
1. substrate with slot antenna, it comprises an insulated substrate, it is characterized in that, said substrate with slot antenna also comprises:
One conductive layer, said conductive layer are arranged at a side of insulated substrate, and have a slit;
One feed line, said feed line is arranged at the opposite side of insulated substrate, and correspondence is arranged under the said slit.
2. the substrate with slot antenna as claimed in claim 1 is characterized in that, said conductive layer is at an end opening in said slit.
3. the substrate with slot antenna as claimed in claim 1 is characterized in that, said insulated substrate is a pcb board.
4. the substrate with slot antenna as claimed in claim 1 is characterized in that, the electrical length in said slit be said substrate with slot antenna operating frequency of antenna wavelength 1/8.
5. the substrate with slot antenna as claimed in claim 4 is characterized in that, said operating frequency of antenna is 5.8GHz.
6. the substrate with slot antenna as claimed in claim 1 is characterized in that, said slit is a rectangle.
7. the substrate with slot antenna as claimed in claim 1 is characterized in that, said feed line is through the slit coupling energy of said conductive layer.
8. the substrate with slot antenna as claimed in claim 1 is characterized in that, the material of said conductive layer and feed line is a metal.
9. the substrate with slot antenna as claimed in claim 8 is characterized in that, said metal is a copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106191786A CN102570012A (en) | 2010-12-30 | 2010-12-30 | Base plate with slot antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106191786A CN102570012A (en) | 2010-12-30 | 2010-12-30 | Base plate with slot antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102570012A true CN102570012A (en) | 2012-07-11 |
Family
ID=46414845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106191786A Pending CN102570012A (en) | 2010-12-30 | 2010-12-30 | Base plate with slot antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102570012A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017107137A1 (en) * | 2015-12-24 | 2017-06-29 | 华为技术有限公司 | Slot antenna and terminal |
-
2010
- 2010-12-30 CN CN2010106191786A patent/CN102570012A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017107137A1 (en) * | 2015-12-24 | 2017-06-29 | 华为技术有限公司 | Slot antenna and terminal |
| US10910726B2 (en) | 2015-12-24 | 2021-02-02 | Huawei Technologies Co., Ltd. | Slot antenna and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |