CN202662799U - Diamond coplanar multi-band micro-strip antenna - Google Patents
Diamond coplanar multi-band micro-strip antenna Download PDFInfo
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- CN202662799U CN202662799U CN2012202986098U CN201220298609U CN202662799U CN 202662799 U CN202662799 U CN 202662799U CN 2012202986098 U CN2012202986098 U CN 2012202986098U CN 201220298609 U CN201220298609 U CN 201220298609U CN 202662799 U CN202662799 U CN 202662799U
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- rhombus
- impedance matching
- radiation
- matching input
- coplanar
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Abstract
The utility model discloses a diamond coplanar multi-band micro-strip antenna which comprises a micro-strip base plate, a diamond radiation ring, impedance matching input micro-strip lines and a hollowed arrow radiation metal board. A diamond radiation patch, an impedance matching input micro-strip line and the hollowed arrow radiation metal board are arranged on the upper surface of the micro-strip base plate. The diamond radiation ring and an impedance matching input micro-strip line are arranged in the hollowed arrow radiation metal board. The bottom end of the diamond radiation ring is connected with one end of the impedance matching input micro-strip line, the other end of the impedance matching input micro-strip line is connected with the bottom end of the micro-strip base plate, and two bottom ends of the hollowed arrow radiation metal board are respectively connected with the bottom end of the micro-strip base plate. The diamond coplanar multi-band micro-strip antenna has the advantages of being stable in radiation characteristic, low in loss and cost, simple in structure and easy to manufacture in the working band.
Description
Technical field
The utility model relates to antenna, relates in particular to the coplanar multifrequency microstrip antenna of a kind of rhombus.
Technical background
Microstrip antenna have little, lightweight, the easy feed of volume, easily with the advantages such as carrier is conformal, be widely used in measurement and the every field of communicating by letter.But the narrow-band characteristic of microstrip antenna has limited its extensive use aspect a lot, so the bandwidth tool of broadening microstrip antenna is of great significance.The frequency band of microstrip antenna is generally all narrow, and common micro-strip paster antenna only is 0.5% ~ 3%, has therefore limited the practical application of microstrip antenna on engineering.By selecting suitable substrate, the various feeding techniques of shape, size, employing that change antenna, impedance match technique etc., effectively widening frequency band
In recent years, people are doing a lot of research aspect the bandwidth of broadening microstrip antenna: increase substrate thickness, reduce dielectric constant; Adopt the electromagnetic coupled multi resonant to shake the mode of spread bandwidth, the mode of employing aperture-coupled adopts sandwich construction.
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, to provide a kind of rhombus coplanar multifrequency microstrip antenna.
In order to achieve the above object, the technical solution of the utility model is as follows:
The coplanar multifrequency microstrip antenna of rhombus comprises little belt substrate, rhombus radiation ring, impedance matching input microstrip line, hollow out arrow radiation metal plate; Little belt substrate upper surface is provided with rhombus radiation patch, impedance matching input microstrip line and hollow out arrow radiation metal plate, be provided with rhombus radiation ring, impedance matching input microstrip line in the hollow out arrow radiation metal plate, the bottom of rhombus radiation patch links to each other with impedance matching input microstrip line one end, the impedance matching input microstrip line other end links to each other with the bottom of little belt substrate, and hollow out arrow radiation metal plate two bottoms link to each other with little belt substrate bottom respectively.
Described little belt substrate is the FR4 material.The length of described little belt substrate is 49mm～51mm, and wide is 49mm～51mm.The four limit length of sides of described rhombus radiation patch equate that length is 12mm～14mm, and paster is wide to be 0.5mm～1mm.Described impedance matching input microstrip line adopts feed microstrip line to be connected with radiation patch, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line is 3mm～4mm.Described hollow out arrow radiation metal plate is rhombus and two rectangle composite constructions, and the four limit length of sides of rhombus equate that length is 29mm～30mm, and width is 3mm～5mm; The length of rectangle is 3mm～5mm, and width is 11mm～13mm, and the spacing of two rectangles and impedance matching input microstrip line is 0.3mm～0.5mm.
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 structural representation of the coplanar multifrequency microstrip antenna of rhombus;
Fig. 2 is the coplanar multifrequency microstrip antenna insertion loss of rhombus curve chart;
Fig. 3 is the antenna pattern of the coplanar multifrequency microstrip antenna of rhombus when 3.5GHz;
Fig. 4 is the antenna pattern of the coplanar multifrequency microstrip antenna of rhombus when 5.2GHz;
Fig. 5 is the antenna pattern of the coplanar multifrequency microstrip antenna of rhombus when 5.5GHz.
Embodiment
The coplanar multifrequency microstrip antenna of rhombus comprises little belt substrate 1, rhombus radiation ring 2, impedance matching input microstrip line 3, hollow out arrow radiation metal plate 4; Little belt substrate 1 upper surface is provided with rhombus radiation patch 2, impedance matching input microstrip line 3 and hollow out arrow radiation metal plate 4, be provided with rhombus radiation ring 2, impedance matching input microstrip line 3 in the hollow out arrow radiation metal plate 4, the bottom of rhombus radiation patch 2 links to each other with impedance matching input microstrip line 3 one ends, impedance matching input microstrip line 3 other ends link to each other with the bottom of little belt substrate 1, and 4 liang of bottoms of hollow out arrow radiation metal plate link to each other with little belt substrate 1 bottom respectively.
Described little belt substrate 1 is the FR4 material.The length of described little belt substrate 1 is 49mm～51mm, and wide is 49mm～51mm.The four limit length of sides of described rhombus radiation patch 2 equate that length is 12mm～14mm, and paster is wide to be 0.5mm～1mm.Described impedance matching input microstrip line 3 adopts feed microstrip line to be connected with radiation patch 2, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line 3 is 3mm～4mm.Described hollow out arrow radiation metal plate 4 is rhombus and two rectangle composite constructions, and the four limit length of sides of rhombus equate that length is 29mm～30mm, and width is 3mm～5mm; The length of rectangle is 3mm～5mm, and width is 11mm～13mm, and the spacing of two rectangles and impedance matching input microstrip line 3 is 0.3mm～0.5mm.
The coplanar multifrequency microstrip antenna of rhombus:
Selecting dielectric constant is that 4.4 FR4 material is made little belt substrate, and thickness is 1.6mm.The length of little belt substrate is 50mm, and wide is 50mm.The four limit length of sides of rhombus radiation patch equate that length is 13mm, and paster is wide to be 0.7mm.Impedance matching input microstrip line adopts feed microstrip line to be connected with radiation patch, and characteristic impedance is 50 Ω.The width of impedance matching input microstrip line is 4mm.Hollow out arrow radiation metal plate is rhombus and rectangle composite construction, and the four limit length of sides of rhombus equate that length is 30mm, and metallic plate is wide to be 4mm; The length of rectangle is 4mm, and wide is 12mm, and the spacing of inputting microstrip line with impedance matching is 0.4mm.Use software that the radiation characteristics such as the insertion loss curve of the coplanar multifrequency microstrip antenna of rhombus and gain have been carried out simulated measurement, insertion loss curve such as Fig. 2 of the coplanar multifrequency microstrip antenna of rhombus of gained.As seen from Figure 2, insertion loss can cover the whole frequency range of WLAN standard 3.5GHz section 3.30 ~ 3.8GHz fully less than-10dB in 3.34 ~ 3.8GHz scope; Insertion loss can cover the whole frequency range of WLAN standard 5.2GHz section 5.15 ~ 5.35GHz and the whole frequency range of 5.5GHz section 5.25 ~ 5.85GHz fully less than-10dB in 4.58 ~ 5.57GHz scope.Fig. 3-Figure 5 shows that respectively antenna pattern and antenna pattern when 3.5GHz, 5.2GHz, 5.5 GHz of the coplanar multifrequency microstrip antenna of rhombus, gain when frequency is 3.5GHz is 3.6dBi, the half power lobe width is 80.9 °, gain when frequency is 5.2 GHz is 2.6dBi, the half power lobe width is 71.4 °, gain when frequency is 5.5 GHz is 2.4dBi, and the half power lobe width is 77.3 °.
Claims (7)
1. the coplanar multifrequency microstrip antenna of rhombus is characterized in that comprising little belt substrate (1), rhombus radiation ring (2), impedance matching input microstrip line (3), hollow out arrow radiation metal plate (4); Little belt substrate (1) upper surface is provided with rhombus radiation patch (2), impedance matching input microstrip line (3) and hollow out arrow radiation metal plate (4), be provided with rhombus radiation ring (2), impedance matching input microstrip line (3) in the hollow out arrow radiation metal plate (4), the bottom of rhombus radiation patch (2) links to each other with impedance matching input microstrip line (3) one ends, impedance matching input microstrip line (3) other end links to each other with the bottom of little belt substrate (1), and hollow out arrow radiation metal plate (4) two bottoms link to each other with little belt substrate (1) bottom respectively.
2. the coplanar multifrequency microstrip antenna of a kind of rhombus as claimed in claim 1 is characterized in that described little belt substrate (1) is the FR4 material.
3. the coplanar multifrequency microstrip antenna of a kind of rhombus as claimed in claim 1, the length that it is characterized in that described little belt substrate (1) is 49mm～51mm, wide is 49mm～51mm.
4. the coplanar multifrequency microstrip antenna of a kind of rhombus as claimed in claim 1 is characterized in that the four limit length of sides of described rhombus radiation patch (2) equate that length is 12mm～14mm, and paster is wide to be 0.5mm～1mm.
5. the coplanar multifrequency microstrip antenna of a kind of rhombus as claimed in claim 1 is characterized in that described impedance matching input microstrip line (3) and radiation patch (2) adopt feed microstrip line to be connected, and characteristic impedance is 50 Ω.
6. the coplanar multifrequency microstrip antenna of a kind of rhombus as claimed in claim 1 is characterized in that the width of described impedance matching input microstrip line (3) is 3mm～4mm.
7. the coplanar multifrequency microstrip antenna of a kind of rhombus as claimed in claim 1, it is characterized in that described hollow out arrow radiation metal plate (4) is rhombus and two rectangle composite constructions, the four limit length of sides of rhombus equate that length is 29mm～30mm, and width is 3mm～5mm; The length of rectangle is 3mm～5mm, and width is 11mm～13mm, and the spacing of two rectangles and impedance matching input microstrip line (3) is 0.3mm～0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202986098U CN202662799U (en) | 2012-06-25 | 2012-06-25 | Diamond coplanar multi-band micro-strip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202986098U CN202662799U (en) | 2012-06-25 | 2012-06-25 | Diamond coplanar multi-band micro-strip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662799U true CN202662799U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202986098U Expired - Fee Related CN202662799U (en) | 2012-06-25 | 2012-06-25 | Diamond coplanar multi-band micro-strip antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618136A (en) * | 2013-11-07 | 2014-03-05 | 中国计量学院 | Ring-encircled wideband coplanar antenna |
| CN103715499A (en) * | 2013-12-17 | 2014-04-09 | 华南理工大学 | Annular UHF near-field RFID reader-writer antenna |
| CN106981712A (en) * | 2017-04-20 | 2017-07-25 | 深圳市拓频通讯设备有限公司 | A kind of mobile phone full frequency band rhombus spring antenna |
-
2012
- 2012-06-25 CN CN2012202986098U patent/CN202662799U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618136A (en) * | 2013-11-07 | 2014-03-05 | 中国计量学院 | Ring-encircled wideband coplanar antenna |
| CN103715499A (en) * | 2013-12-17 | 2014-04-09 | 华南理工大学 | Annular UHF near-field RFID reader-writer antenna |
| CN106981712A (en) * | 2017-04-20 | 2017-07-25 | 深圳市拓频通讯设备有限公司 | A kind of mobile phone full frequency band rhombus spring antenna |
| CN106981712B (en) * | 2017-04-20 | 2019-07-02 | 深圳市拓频通讯设备有限公司 | A kind of mobile phone full frequency band diamond shape spring antenna |
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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: 20130109 Termination date: 20130625 |