CN202977732U - A compact coplanar waveguide feeding mobile communication microstrip antenna - Google Patents
A compact coplanar waveguide feeding mobile communication microstrip antenna Download PDFInfo
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- CN202977732U CN202977732U CN 201220599022 CN201220599022U CN202977732U CN 202977732 U CN202977732 U CN 202977732U CN 201220599022 CN201220599022 CN 201220599022 CN 201220599022 U CN201220599022 U CN 201220599022U CN 202977732 U CN202977732 U CN 202977732U
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Abstract
The utility model discloses a compact coplanar waveguide feeding mobile communication microstrip antenna. The mobile communication microstrip antenna comprises a microstrip substrate, a butterfly-shaped microstrip radiation paster, and an impedance matching input microstrip line. The radiation paster in a shape of inverted recessed pit and the impedance matching input microstrip line are disposed on the top surface of the microstrip substrate. The butterfly-shaped microstrip radiation paster comprises two C-shaped transmission lines with opposite openings and a metal transmission line. The two ends of the metal transmission line are connected with the centers of the C-shaped transmission lines. The center of the metal transmission line is connected with one end of the impedance matching input microstrip line, while the other end of the impedance matching input microstrip line is connected with bottom of the microstrip substrate. The compact coplanar waveguide feeding mobile communication microstrip antenna has advantages of stable radiation characteristics in operating band, low loss, low cost, a simple structure, and easy production.
Description
Technical field
The utility model relates to antenna, relates in particular to a kind of microstrip antenna for mobile communication of compact coplanar wave guide feedback.
Technical background
The engineering systems such as all radio communications, broadcasting, radar, navigation all utilize radio wave to carry out work, and antenna is outlet and the entrance of radio wave, are undertaking electromagnetic wave emission and the important task that receives.The key problem of modern antenna design is exactly to make antenna satisfy specification requirement more harsh in new system, and surmounts original antenna form.
Microstrip antenna is widely used in measuring and the communication every field owing to having that section is low, lightweight, volume is little, it is conformal to be easy to and the advantage such as batch production.But microstrip antenna has its inherent shortcoming, be that its impedance bandwidth is narrower, typical frequency bandwidth is several to a few percent from percent zero point, so the narrow-band characteristic of microstrip antenna has become to limit the major obstacle of its application, so the bandwidth tool of broadening microstrip antenna is of great significance.
Along with the sharp increase of radio communication amount, make communication system constantly update and dilatation.For reducing the interference between antenna and reducing costs, require antenna can satisfy simultaneously the communicating requirement of a plurality of systems.1.8 ghz band is the ISM band of the free use in the whole world, many standards such as bluetooth, 802.11b and Zigbee.Cause the series of problems such as interference for fear of numerous technology in this frequency range, increased especially the 5.8GHz frequency range in 802.11a.。
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency that prior art is narrow at the WLAN (wireless local area network) midband, loss is large, a kind of microstrip antenna for mobile communication of compact coplanar wave guide feedback to be provided.
In order to achieve the above object, the technical solution of the utility model is as follows:
The microstrip antenna for mobile communication of compact coplanar wave guide feedback comprises little belt substrate, butterfly shaped microstrip radiation patch, impedance matching input microstrip line; Little belt substrate upper surface is provided with the radiation patch of falling the dimple-shaped and impedance matching input microstrip line; Butterfly shaped microstrip radiation patch comprises that the C type transmission line of two anisotropic openings and metal transmission line form, the center of metal transmission line two ends connection C type transmission line.Metal transmission line center and impedance matching input microstrip line one end is connected, and impedance matching is inputted the microstrip line other end and is connected with little belt substrate bottom.
Described little belt substrate is the FR4 material.The length of described little belt substrate is 50mm～60mm, and wide is 50mm～60mm.The width of described C type transmission line is 10mm～15mm, height 30mm～35mm, and micro belt line width is 1mm～2mm.The length of described metal transmission line is 10mm～12mm, and micro belt line width is 1mm～2mm.Described impedance matching input microstrip line adopts feed microstrip line to be connected with butterfly shaped microstrip radiation patch, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line is 1mm～2mm.
Have stable radiation characteristic in the utility model working band, loss is low, cost is low, and is simple in structure, be easy to make.
Description of drawings
Fig. 1 is the structure chart of the microstrip antenna for mobile communication of compact coplanar wave guide feedback;
Fig. 2 is the microstrip antenna for mobile communication insertion loss curve chart of compact coplanar wave guide feedback;
Fig. 3 is the E surface radiation directional diagram of microstrip antenna for mobile communication when 1.5GHz of compact coplanar wave guide feedback;
Fig. 4 is the H surface radiation directional diagram of microstrip antenna for mobile communication when 1.5GHz of compact coplanar wave guide feedback.
Embodiment
The microstrip antenna for mobile communication of compact coplanar wave guide feedback comprises little belt substrate 1, butterfly shaped microstrip radiation patch 2, impedance matching input microstrip line 5; Little belt substrate 1 upper surface is provided with the radiation patch of falling the dimple-shaped 2 and impedance matching input microstrip line 5; Butterfly shaped microstrip radiation patch 2 comprises that the C type transmission line 3 of two anisotropic openings and metal transmission line 4 form, the center of metal transmission line 4 two ends connection C type transmission lines 3.Metal transmission line 4 centers and impedance matching input microstrip line 5 one ends are connected, and impedance matching is inputted microstrip line 5 other ends and is connected with little belt substrate 1 bottom.
Described little belt substrate 1 is the FR4 material.The length of described little belt substrate 1 is 50mm～60mm, and wide is 50mm～60mm.The width of described C type transmission line 3 is 10mm～15mm, height 30mm～35mm, and micro belt line width is 1mm～2mm.The length of described metal transmission line 4 is 10mm～12mm, and micro belt line width is 1mm～2mm.Described impedance matching input microstrip line 5 adopts feed microstrip line to be connected with butterfly shaped microstrip radiation patch 2, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line 5 is 1mm～2mm.
Embodiment 1
The microstrip antenna for mobile communication of compact coplanar wave guide feedback:
The selection dielectric constant is 4.4 the little belt substrate of FR4 material making, and thickness is 1.6 mm.The length of little belt substrate is 50mm, and wide is 50mm.The width of C type transmission line is 13mm, height 33mm, and micro belt line width is 2mm.The length of described metal transmission line is 11mm, and micro belt line width is 2mm.Impedance matching input microstrip line adopts feed microstrip line to be connected with butterfly shaped microstrip radiation patch, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line is 1mm～2mm.Use software the radiation characteristics such as the insertion loss curve of the microstrip antenna for mobile communication of compact coplanar wave guide feedback and gain to be carried out insertion loss curve such as Fig. 2 of microstrip antenna for mobile communication of the compact coplanar wave guide feedback of simulated measurement gained.As seen from Figure 2, in 1.3716 ~ 2.0651GHz scope insertion loss less than-10dB.The microstrip antenna for mobile communication of Fig. 3-Figure 4 shows that compact coplanar wave guide feedback is the antenna pattern when 1.5GHz and antenna pattern respectively, and the gain when frequency is 1.5GHz is 1.9dBi, and the half power lobe width is 85.1 °.
Claims (7)
1. the microstrip antenna for mobile communication of a compact coplanar wave guide feedback, is characterized in that comprising little belt substrate (1), butterfly shaped microstrip radiation patch (2), impedance matching input microstrip line (5); Little belt substrate (1) upper surface is provided with the radiation patch of falling the dimple-shaped (2) and impedance matching input microstrip line (5); Butterfly shaped microstrip radiation patch (2) comprises that the C type transmission line (3) of two anisotropic openings and metal transmission line (4) form, metal transmission line (4) two ends connect the center of C type transmission line (3), metal transmission line (4) center and impedance matching input microstrip line (5) one ends are connected, and impedance matching is inputted microstrip line (5) other end and is connected with little belt substrate (1) bottom.
2. the microstrip antenna for mobile communication of a kind of compact coplanar wave guide feedback as claimed in claim 1, is characterized in that described little belt substrate (1) is the FR4 material.
3. the microstrip antenna for mobile communication of a kind of compact coplanar wave guide feedback as claimed in claim 1, the length that it is characterized in that described little belt substrate (1) is 50mm～60mm, wide is 50mm～60mm.
4. the microstrip antenna for mobile communication of a kind of compact coplanar wave guide feedback as claimed in claim 1, the width that it is characterized in that described C type transmission line (3) is 10mm～15mm, height 30mm～35mm, micro belt line width is 1mm～2mm.
5. the microstrip antenna for mobile communication of a kind of compact coplanar wave guide feedback as claimed in claim 1, the length that it is characterized in that described metal transmission line (4) is 10mm～12mm, micro belt line width is 1mm～2mm.
6. the microstrip antenna for mobile communication of a kind of compact coplanar wave guide feedback as claimed in claim 1, is characterized in that described impedance matching input microstrip line (5) and butterfly shaped microstrip radiation patch (2) adopt feed microstrip line to be connected, and characteristic impedance is 50 Ω.
7. the microstrip antenna for mobile communication of a kind of compact coplanar wave guide feedback as claimed in claim 1, is characterized in that the width of described impedance matching input microstrip line (5) is 1mm～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220599022 CN202977732U (en) | 2012-11-14 | 2012-11-14 | A compact coplanar waveguide feeding mobile communication microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220599022 CN202977732U (en) | 2012-11-14 | 2012-11-14 | A compact coplanar waveguide feeding mobile communication microstrip antenna |
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| Publication Number | Publication Date |
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| CN202977732U true CN202977732U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220599022 Expired - Fee Related CN202977732U (en) | 2012-11-14 | 2012-11-14 | A compact coplanar waveguide feeding mobile communication microstrip antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500880A (en) * | 2013-10-15 | 2014-01-08 | 中国计量学院 | Symmetrically four-red-heart-shaped array antenna |
| CN104167604A (en) * | 2014-08-26 | 2014-11-26 | 南京濠暻通讯科技有限公司 | Broadband slot antenna suitable for LET indoor distribution |
-
2012
- 2012-11-14 CN CN 201220599022 patent/CN202977732U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500880A (en) * | 2013-10-15 | 2014-01-08 | 中国计量学院 | Symmetrically four-red-heart-shaped array antenna |
| CN103500880B (en) * | 2013-10-15 | 2016-09-21 | 中国计量学院 | Symmetrical four-red-heart-shapearray array antenna |
| CN104167604A (en) * | 2014-08-26 | 2014-11-26 | 南京濠暻通讯科技有限公司 | Broadband slot antenna suitable for LET indoor distribution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131114 |