CN203398282U - A microstrip antenna with triple coplanar concentric circular rings - Google Patents
A microstrip antenna with triple coplanar concentric circular rings Download PDFInfo
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- CN203398282U CN203398282U CN201320520176.0U CN201320520176U CN203398282U CN 203398282 U CN203398282 U CN 203398282U CN 201320520176 U CN201320520176 U CN 201320520176U CN 203398282 U CN203398282 U CN 203398282U
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- paster
- annular
- microstrip antenna
- circularly
- transmission line
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Abstract
The utility model discloses a microstrip antenna with triple coplanar concentric circular rings. The microstrip antenna comprises a substrate, an outer circularly-annular paster, a middle circularly-annular paster, an inner circularly-annular paster, a small strip-shaped paster, a large strip-shaped paster, an impedance match input transmission line, and rectangular metallic grounding boards. The outer circularly-annular paster, the middle circularly-annular paster, the inner circularly-annular paster, the small strip-shaped paster, the large strip-shaped paster, the impedance match input transmission line, and the two rectangular metallic grounding boards are disposed on the substrate. A left groove is disposed on the left side of the middle circularly-annular paster. A right groove is disposed on the right of the inner circularly-annular paster. The outer circularly-annular paster and the middle circularly-annular paster are connected through the large strip-shaped paster. The middle circularly-annular paster and the inner circularly-annular paster are connected through the small strip-shaped paster. The rectangular metallic grounding boards are symmetrically disposed at the two sides of the impedance match input transmission line. One end of the impedance match input transmission line is connected with the outer circularly-annular paster, while the other end of the impedance match input transmission line is connected with the bottom of the substrate. The bottoms of the rectangular metallic grounding boards are connected with the bottom of the substrate. In the operating band, the microstrip antenna has advantages of a stable radiation characteristic, low loss, simple structure, light weight, easy production, and easy integration.
Description
Technical field
The utility model relates to antenna, relates in particular to the coplanar microstrip antenna of a kind of three concentric circles annular.
Background technology
In the middle of communication system, the effect of antenna is very important.U.S. electric and EEA Eelectronic Eengineering Association (IEEE) to the standard definition of antenna are: the approach of a kind of acceptance and radiated electromagnetic wave.Antenna is a kind of energy converter, and it can, by the electromagnetic wave on transmission line, convert the electromagnetic wave of propagating on atmosphere or transmission medium to; Equally, it also can transform to the electromagnetic wave in atmosphere or in transmission medium on transmission line.In radio communication, navigation, broadcast, electronic countermeasures, the fields such as remote sensing, everyly relate to microwave communication, all will use antenna, and the application that can find out antenna is very widely.
Microstrip antenna is taught in nineteen fifty-three and is proposed by Deschamps, and he wished the energy emission of microstrip transmission line propagation to be gone out at that time, and then had produced the concept of microstrip antenna.From twentieth century seventies, because microstrip antenna technical development is very fast, it also becomes rapidly in antenna family independently branch, and meanwhile, first practical microstrip antenna is also made.From then on, people have dropped into a large amount of energy in this field, make microstrip antenna not only fast-developing in theory, and also obtained significant progress in engineering application.
Summary of the invention
The 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 three concentric circles annular coplanar microstrip antenna.
In order to achieve the above object, the technical solution of the utility model is as follows:
The coplanar microstrip antenna of three concentric circles annulars comprises substrate, outside annular paster, middle circle annular paster, inner side annular paster, little ribbon paster, big band shape paster, impedance matching input transmission line, rectangular metal ground plate; Substrate is provided with outside annular paster, middle circle annular paster, inner side annular paster, little ribbon paster, big band shape paster, impedance matching input transmission line, two rectangular metal ground plates; The left side of middle circle annular paster is provided with left fluting, and the right side of inner side annular paster is provided with right fluting; Outside annular paster is connected by big band shape paster with middle circle annular paster, and middle circle annular paster is connected by little ribbon paster with inner side annular paster; The bilateral symmetry of impedance matching input transmission line is provided with rectangular metal ground plate, one end of impedance matching input transmission line is connected with outside annular paster, the impedance matching input other end of transmission line and the bottom of substrate are connected, and the bottom of rectangular metal ground plate is connected with the bottom of substrate.
Described substrate is glass-epoxy material, and the length of substrate is 32mm～34mm, and width is 28mm～30mm.The outer radius of described outside annular paster is 7.5mm～7.6mm, and inside radius is 6.9mm～7.0mm.The outer radius of described middle circle annular paster is 4.5mm～4.6mm, and inside radius is 3.9mm～4.0mm.The outer radius of described inner side annular paster is 3.0mm～3.1mm, and inside radius is 2.4mm～2.5mm.Described little ribbon paster and the width of big band shape paster are respectively 0.8mm～0.9mm and 1.0mm～1.1mm.The length of described impedance matching input transmission line is 11.0mm～11.2mm, and width is 2mm～3mm.The length of described rectangular metal ground plate is 14.5mm～15.0mm, and width is 10mm～12mm.Described left fluting and the groove width of right fluting are 0.8mm～1.0mm.
In the utility model working band, have stable radiation characteristic, loss is low, simple in structure, and quality is light, easy to make, is convenient to integrated.
Accompanying drawing explanation:
Fig. 1 is the structural representation of the coplanar microstrip antenna of three concentric circles annulars;
Fig. 2 is the S parametric plot of the coplanar microstrip antenna of three concentric circles annulars;
Fig. 3 is the E surface radiation directional diagram of antenna when 2.64GHz;
Fig. 4 is the H surface radiation directional diagram of antenna when 2.64GHz;
Fig. 5 is the E surface radiation directional diagram of antenna when 3.70GHz;
Fig. 6 is the H surface radiation directional diagram of antenna when 3.70GHz.
Embodiment
As shown in Figure 1, the coplanar microstrip antenna of three concentric circles annulars comprises substrate 1, outside annular paster 2, middle circle annular paster 3, inner side annular paster 4, little ribbon paster 5, big band shape paster 6, impedance matching input transmission line 7, rectangular metal ground plate 8; Substrate 1 is provided with outside annular paster 2, middle circle annular paster 3, inner side annular paster 4, little ribbon paster 5, big band shape paster 6,7, two rectangular metal ground plates 8 of impedance matching input transmission line; The left side of middle circle annular paster 3 is provided with left fluting 9, and the right side of inner side annular paster 4 is provided with right fluting 10; Outside annular paster 2 is connected by big band shape paster 6 with middle circle annular paster 3, and middle circle annular paster 3 is connected by little ribbon paster 5 with inner side annular paster 4; The bilateral symmetry of impedance matching input transmission line 7 is provided with rectangular metal ground plate 8, one end of impedance matching input transmission line 7 is connected with outside annular paster 2, the other end of impedance matching input transmission line 7 is connected with the bottom of substrate 1, and the bottom of rectangular metal ground plate 8 is connected with the bottom of substrate 1.
Described substrate 1 is glass-epoxy material, and the length of substrate 1 is 32mm～34mm, and width is 28mm～30mm.The outer radius of described outside annular paster 2 is 7.5mm～7.6mm, and inside radius is 6.9mm～7.0mm.The outer radius of described middle circle annular paster 3 is 4.5mm～4.6mm, and inside radius is 3.9mm～4.0mm.The outer radius of described inner side annular paster 4 is 3.0mm～3.1mm, and inside radius is 2.4mm～2.5mm.Described little ribbon paster 5 and the width of big band shape paster 6 are respectively 0.8mm～0.9mm and 1.0mm～1.1mm.The length of described impedance matching input transmission line 7 is 11.0mm～11.2mm, and width is 2mm～3mm.The length of described rectangular metal ground plate 8 is 14.5mm～15.0mm, and width is 10mm～12mm.Described left fluting 9 and the groove width of right fluting 10 are 0.8mm～1.0mm.
Embodiment 1
Select the glass-epoxy material that dielectric constant is 4.4 to make micro-belt substrate, thickness is 1.6mm.The length of substrate is 32mm, and width is 28mm.The outer radius of outside annular paster is 7.5mm, and inside radius is 6.9mm.The outer radius of middle circle annular paster is 4.5mm, and inside radius is 3.9mm.The outer radius of inner side annular paster is 3.0mm, and inside radius is 2.4mm.The width of little ribbon paster and big band shape paster is respectively 0.8mm and 1.0mm.The length of impedance matching input transmission line is 11.1mm, and width is 2mm.The length of rectangular metal ground plate is 14.5mm, and width is 10mm.The groove width of left fluting and right fluting is 0 two 8mm.The property indices of the coplanar microstrip antenna of three concentric circles annulars adopts CST software to test, and the S parameter curve of gained is as accompanying drawing 2.As seen from the figure ,-working frequency range below 10dB is 2.59GHz～2.68GHz and 3.21GHz～5.04GHz.Fig. 3-4 are depicted as E face and the H face directional diagram of the coplanar microstrip antenna of three concentric circles annulars when 2.64GHz, as seen from the figure, when frequency is 2.64GHz, gain as 2.5dBi, and half power lobe width is 86.3 °.Fig. 5-6 are depicted as E face and the H face directional diagram of the coplanar microstrip antenna of three concentric circles annulars when 3.70GHz, as seen from the figure, when frequency is 3.70GHz, gain as 2.4dBi, and half power lobe width is 83.7 °.
Claims (9)
1. the coplanar microstrip antenna of concentric circles annular, it is characterized in that comprising substrate (1), outside annular paster (2), middle circle annular paster (3), inner side annular paster (4), little ribbon paster (5), big band shape paster (6), impedance matching input transmission line (7), rectangular metal ground plate (8); Substrate (1) is provided with outside annular paster (2), middle circle annular paster (3), inner side annular paster (4), little ribbon paster (5), big band shape paster (6), impedance matching input transmission line (7), two rectangular metal ground plates (8); The left side of middle circle annular paster (3) is provided with left fluting (9), and the right side of inner side annular paster (4) is provided with right fluting (10); Outside annular paster (2) is connected by big band shape paster (6) with middle circle annular paster (3), and middle circle annular paster (3) is connected by little ribbon paster (5) with inner side annular paster (4); The bilateral symmetry of impedance matching input transmission line (7) is provided with rectangular metal ground plate (8), one end of impedance matching input transmission line (7) is connected with outside annular paster (2), the other end of impedance matching input transmission line (7) is connected with the bottom of substrate (1), and the bottom of rectangular metal ground plate (8) is connected with the bottom of substrate (1).
2. the coplanar microstrip antenna of a kind of three concentric circles annular as claimed in claim 1, is characterized in that described substrate (1) is glass-epoxy material, and the length of substrate (1) is 32mm～34mm, and width is 28mm～30mm.
3. the coplanar microstrip antenna of a kind of three concentric circles annular as claimed in claim 1, is characterized in that the outer radius of described outside annular paster (2) is 7.5mm～7.6mm, and inside radius is 6.9mm～7.0mm.
4. the coplanar microstrip antenna of a kind of three concentric circles annular as claimed in claim 1, is characterized in that the outer radius of described middle circle annular paster (3) is 4.5mm～4.6mm, and inside radius is 3.9mm～4.0mm.
5. the coplanar microstrip antenna of a kind of three concentric circles annular as claimed in claim 1, is characterized in that the outer radius of described inner side annular paster (4) is 3.0mm～3.1mm, and inside radius is 2.4mm～2.5mm.
6. the coplanar microstrip antenna of a kind of three concentric circles annular as claimed in claim 1, is characterized in that described little ribbon paster (5) and the width of big band shape paster (6) are respectively 0.8mm～0.9mm and 1.0mm～1.1mm.
7. the coplanar microstrip antenna of a kind of three concentric circles annular as claimed in claim 1, is characterized in that the length of described impedance matching input transmission line (7) is 11.0mm～11.2mm, and width is 2mm～3mm.
8. the coplanar microstrip antenna of a kind of three concentric circles annular as claimed in claim 1, is characterized in that the length of described rectangular metal ground plate (8) is 14.5mm～15.0mm, and width is 10mm～12mm.
9. the coplanar microstrip antenna of a kind of three concentric circles annular as claimed in claim 1, is characterized in that described left fluting (9) and the groove width of right fluting (10) are 0.8mm～1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520176.0U CN203398282U (en) | 2013-08-22 | 2013-08-22 | A microstrip antenna with triple coplanar concentric circular rings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520176.0U CN203398282U (en) | 2013-08-22 | 2013-08-22 | A microstrip antenna with triple coplanar concentric circular rings |
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| CN203398282U true CN203398282U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320520176.0U Expired - Fee Related CN203398282U (en) | 2013-08-22 | 2013-08-22 | A microstrip antenna with triple coplanar concentric circular rings |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654588A (en) * | 2016-11-21 | 2017-05-10 | 集美大学 | Triangular ring micro-strip antenna |
| CN113972489A (en) * | 2020-07-24 | 2022-01-25 | 华为技术有限公司 | Antenna and electronic device |
-
2013
- 2013-08-22 CN CN201320520176.0U patent/CN203398282U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654588A (en) * | 2016-11-21 | 2017-05-10 | 集美大学 | Triangular ring micro-strip antenna |
| CN106654588B (en) * | 2016-11-21 | 2019-07-02 | 集美大学 | A kind of triangular ring microstrip antenna |
| CN113972489A (en) * | 2020-07-24 | 2022-01-25 | 华为技术有限公司 | Antenna and electronic device |
| CN113972489B (en) * | 2020-07-24 | 2023-02-10 | 华为技术有限公司 | Antenna and electronic device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20140822 |
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| EXPY | Termination of patent right or utility model |