CN202662795U - Single-band coplanar waveguide microstrip antenna - Google Patents
Single-band coplanar waveguide microstrip antenna Download PDFInfo
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- CN202662795U CN202662795U CN 201220298595 CN201220298595U CN202662795U CN 202662795 U CN202662795 U CN 202662795U CN 201220298595 CN201220298595 CN 201220298595 CN 201220298595 U CN201220298595 U CN 201220298595U CN 202662795 U CN202662795 U CN 202662795U
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Abstract
The utility model discloses a single-band coplanar waveguide microstrip antenna. A circular radiating patch, an m-shaped radiating patch, a connecting transmission line, rectangular metal radiating plates and an impedance matching input transmission line, wherein the central bottom of the circular radiating patch is connected with one end of the connecting transmission line, and the other end of the connecting transmission line is connected with the top end of the m-shaped radiating patch; the inner side wall of the m-shaped radiating patch is connected with one end of the impedance matching input transmission line, and the other end of the impedance matching input transmission line is connected with the bottom end of a microstrip base plate; and the rectangular metal radiating plates are respectively arranged on both sides of the impedance matching input transmission line in an equidistance gap, and the bottom ends of the rectangular metal radiating plates are connected with the bottom end of the microstrip base plate. Because the rectangular metal radiating plates are adopted and the microstrip base plate is made from an FR4 material, the single-band coplanar waveguide microstrip antenna has the characteristics of high gain, low loss, low cost, good cross polarization characteristic and radiation characteristic, simple structure and convenience for integration.
Description
Technical field
The utility model relates to antenna, relates in particular to a kind of single band co-planar waveguide microstrip antenna.
Technical background
Along with the development of microwave integrated technology and space technology to the active demand of low profile antenna, launched in the world microstrip antenna extensively and is in depth studied, new construction and high performance microstrip antenna continue to bring out.Compare with common microwave antenna, microstrip antenna have thin profile, volume little, simple in structure, be fit to printed circuit technique produce in enormous quantities, can be conformal with carrier, be easy to integrated, make simple, be easy to realize the multiple advantage of dual polarization etc.Micro-strip paster antenna is used widely with the not available advantage of antenna of other types such as its efficient is high, size is little, analytical method is ripe.
Many performances of broadband dual polarized antenna itself and engineering application requirements, brought difficulty for research and design: to require on the one hand antenna to have wider frequency band, preferably gain and directional diagram, good isolation and cross polarization, also need on the other hand to consider the factors such as cost, installation and debugging, volume, weight.These 2 years, the research of all channel antenna obtained some new progresses.Bi Qun Wu and Kwai-Man Luk have proposed the dual polarized antenna of a kind of pair of inverted L shape feed in the literature, realized 65.9% impedance bandwidth (VSWR＜2) and be lower than-isolation of 36dB, stable gain and directional diagram are arranged still, there are several shortcomings in this antenna: the one, and the structure of employing metal straight forming, weight is larger; The 2nd, feed line and support, the distance between the post is very little, and this distance is very large on the impedance bandwidth impact, will inevitably increase the cost of installation, debugging, maintenance; The 3rd, distance is excessive between two inverted L shape feed lines of this antenna, and the consistency of impedance is poor.
Summary of the invention
The purpose of this utility model is large in order to overcome prior art loss in WLAN (wireless local area network), and the low deficiency that gains provides a kind of single band co-planar waveguide microstrip antenna.
In order to achieve the above object, the technical solution of the utility model is as follows:
Single band co-planar waveguide microstrip antenna comprises little belt substrate, circular radiation patch, the radiation patch of falling the chevron, connection transmission line, rectangular metal radiant panel, impedance matching input transmission line; The upper surface of little belt substrate is provided with circular radiation patch, the radiation patch of falling the chevron, connect transmission line, the rectangular metal radiant panel, impedance matching input transmission line, circular radiation patch centre bottom is with to be connected transmission line one end continuous, connecting the transmission line other end links to each other with the radiation patch of falling chevron top, the radiation patch of falling chevron top madial wall links to each other with impedance matching input transmission line one end, the impedance matching input transmission line other end links to each other with little belt substrate bottom, both sides in the equidistant slit of distance impedance matching input transmission line are respectively equipped with the rectangular metal radiant panel, and rectangular metal radiant panel bottom links to each other with little belt substrate bottom.
Described little belt substrate is the FR4 material.The length of described little belt substrate is 25mm～26mm, and wide is 35mm～40mm.The radius of described circular radiation patch is 4mm～5mm.The width of the described radiation patch of falling the chevron is 9mm～10mm, highly is 5mm～7 mm.The length of described connection transmission line is 1mm～2mm, and wide is 0.8mm～1mm.The length of described rectangular metal radiant panel is 10mm ~ 12mm, and width is 15mm ~ 18mm.The length of described impedance matching input transmission line is 15mm ~ 20mm, and width is 3mm ~ 4mm.Described circular radiation patch adopts feed microstrip line to be connected with impedance matching input transmission line, and characteristic impedance is 50 Ω.
The utility model adopts the rectangular metal radiant panel, and little belt substrate use FR4 material, has the gain height, and loss is low, and cost is low, and cross polarization characteristics and radiation characteristic are good, and be simple in structure, is convenient to integrated.
Description of drawings:
Fig. 1 is the structural front view of single band co-planar waveguide microstrip antenna;
Fig. 2 is the insertion loss figure of single band co-planar waveguide microstrip antenna;
Fig. 3 is the antenna pattern of single band co-planar waveguide microstrip antenna when 2.55GHz.
Embodiment
As shown in Figure 1, single band co-planar waveguide microstrip antenna comprises little belt substrate 1, circular radiation patch 2, the radiation patch of falling the chevron 3, connection transmission line 4, rectangular metal radiant panel 5, impedance matching input transmission line 6; The upper surface of little belt substrate 1 is provided with circular radiation patch 2, the radiation patch of falling the chevron 3, connect transmission line 4, rectangular metal radiant panel 5, impedance matching input transmission line 6, circular radiation patch 2 centre bottom are with to be connected transmission line 4 one ends continuous, connecting transmission line 4 other ends links to each other with the radiation patch of falling the chevron 3 tops, the radiation patch of falling the chevron 3 top madial walls link to each other with impedance matching input transmission line 6 one ends, impedance matching input transmission line 6 other ends link to each other with little belt substrate 1 bottom, both sides in distance impedance matching input transmission line 3 equidistant slits are respectively equipped with rectangular metal radiant panel 5, and rectangular metal radiant panel 5 bottoms link to each other with little belt substrate 2 bottoms.
Described little belt substrate 1 is the FR4 material.The length of described little belt substrate 1 is 25mm～26mm, and wide is 35mm～40mm.The radius of described circular radiation patch 2 is 4mm～5mm.The width of the described radiation patch of falling the chevron 3 is 9mm～10mm, highly is 5mm～7 mm.The length of described connection transmission line 4 is 1mm～2mm, and wide is 0.8mm～1mm.The length of described rectangular metal radiant panel 5 is 10mm ~ 12mm, and width is 15mm ~ 18mm.The length of described impedance matching input transmission line 6 is 15mm ~ 20mm, and width is 3mm ~ 4mm.Described circular radiation patch 2 adopts feed microstrip line to be connected with impedance matching input transmission line 6, and characteristic impedance is 50 Ω.
Single band co-planar waveguide microstrip antenna:
Selecting dielectric constant is that 4 FR4 material is made little belt substrate, and thickness is 1.6 mm.The length of little belt substrate is 25.4mm, and wide is 38mm.The radius of circular radiation patch is 5mm.The width of the radiation patch of falling the chevron is 9mm, highly is 7 mm.The length that connects transmission line is 2mm, and wide is 1mm.The length of rectangular metal radiant panel is 10mm, and width is 17.5mm.The length of impedance matching input transmission line is 17.5mm, and width is 3mm.Circular radiation patch adopts feed microstrip line to be connected with impedance matching input transmission line, and characteristic impedance is 50 Ω.As seen from the figure, the following working frequency range of-10dB is respectively 2.3 GHz-2.9GHz, meets WLAN frequency range standard.Figure 3 shows that single band co-planar waveguide microstrip antenna at the E of 2.55GHz face and H face directional diagram, as can be seen from the figure, frequency is when 2.55GHz, and gaining is that 2.2dBi, half power lobe width are 83.9 °.
Claims (9)
1. a single band co-planar waveguide microstrip antenna is characterized in that comprising little belt substrate (1), circular radiation patch (2), the radiation patch of falling the chevron (3), connection transmission line (4), rectangular metal radiant panel (5), impedance matching input transmission line (6); The upper surface of little belt substrate (1) is provided with circular radiation patch (2), the radiation patch of falling the chevron (3), connect transmission line (4), rectangular metal radiant panel (5), impedance matching input transmission line (6), circular radiation patch (2) centre bottom is with to be connected transmission line (4) one ends continuous, connecting transmission line (4) other end links to each other with the radiation patch of falling the chevron (3) top, the radiation patch of falling the chevron (3) top madial wall links to each other with impedance matching input transmission line (6) one ends, impedance matching input transmission line (6) other end links to each other with little belt substrate (1) bottom, both sides in the equidistant slit of distance impedance matching input transmission line (3) are respectively equipped with rectangular metal radiant panel (5), and rectangular metal radiant panel (5) bottom links to each other with little belt substrate (2) bottom.
2. a kind of single band co-planar waveguide microstrip antenna as claimed in claim 1 is characterized in that described little belt substrate (1) is the FR4 material.
3. a kind of single band co-planar waveguide microstrip antenna as claimed in claim 1, the length that it is characterized in that described little belt substrate (1) is 25mm～26mm, wide is 35mm～40mm.
4. a kind of single band co-planar waveguide microstrip antenna as claimed in claim 1, the radius that it is characterized in that described circular radiation patch (2) is 4mm～5mm.
5. a kind of single band co-planar waveguide microstrip antenna as claimed in claim 1, the width that it is characterized in that the described radiation patch of falling the chevron (3) is 9mm～10mm, highly is 5mm～7 mm.
6. a kind of single band co-planar waveguide microstrip antenna as claimed in claim 1, the length that it is characterized in that described connection transmission line (4) is 1mm～2mm, wide is 0.8mm～1mm.
7. a kind of single band co-planar waveguide microstrip antenna as claimed in claim 1, the length that it is characterized in that described rectangular metal radiant panel (5) is 10mm ~ 12mm, width is 15mm ~ 18mm.
8. a kind of single band co-planar waveguide microstrip antenna as claimed in claim 1 is characterized in that the length of described impedance matching input transmission line (6) is 15mm ~ 20mm, and width is 3mm ~ 4mm.
9. a kind of single band co-planar waveguide microstrip antenna as claimed in claim 1 is characterized in that described circular radiation patch (2) and impedance matching input transmission line (6) adopt feed microstrip line to be connected, and characteristic impedance is 50 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298595 CN202662795U (en) | 2012-06-25 | 2012-06-25 | Single-band coplanar waveguide microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298595 CN202662795U (en) | 2012-06-25 | 2012-06-25 | Single-band coplanar waveguide microstrip antenna |
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| Publication Number | Publication Date |
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| CN202662795U true CN202662795U (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220298595 Expired - Fee Related CN202662795U (en) | 2012-06-25 | 2012-06-25 | Single-band coplanar waveguide microstrip antenna |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742524A (en) * | 2018-12-28 | 2019-05-10 | 中山大学 | A kind of directed microstrip antenna |
| CN111357153A (en) * | 2017-11-06 | 2020-06-30 | 东友精细化工有限公司 | Film antenna and display device comprising same |
| US11108141B2 (en) * | 2018-09-12 | 2021-08-31 | Taoglas Group Holdings Limited | Embedded patch antennas, systems and methods |
| CN114300841A (en) * | 2022-03-07 | 2022-04-08 | 天津大学 | Novel ultrahigh frequency antenna for partial discharge detection based on coplanar waveguide feed |
-
2012
- 2012-06-25 CN CN 201220298595 patent/CN202662795U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111357153A (en) * | 2017-11-06 | 2020-06-30 | 东友精细化工有限公司 | Film antenna and display device comprising same |
| CN111357153B (en) * | 2017-11-06 | 2023-01-10 | 东友精细化工有限公司 | Film antenna and display device comprising same |
| US11108141B2 (en) * | 2018-09-12 | 2021-08-31 | Taoglas Group Holdings Limited | Embedded patch antennas, systems and methods |
| CN109742524A (en) * | 2018-12-28 | 2019-05-10 | 中山大学 | A kind of directed microstrip antenna |
| CN114300841A (en) * | 2022-03-07 | 2022-04-08 | 天津大学 | Novel ultrahigh frequency antenna for partial discharge detection based on coplanar waveguide feed |
| CN114300841B (en) * | 2022-03-07 | 2022-06-28 | 天津大学 | Novel ultrahigh frequency antenna for partial discharge detection based on coplanar waveguide feed |
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| Date | Code | Title | Description |
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| 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 |