CN204289702U - Eyebrow shape microstrip antenna - Google Patents
Eyebrow shape microstrip antenna Download PDFInfo
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- CN204289702U CN204289702U CN201420778017.5U CN201420778017U CN204289702U CN 204289702 U CN204289702 U CN 204289702U CN 201420778017 U CN201420778017 U CN 201420778017U CN 204289702 U CN204289702 U CN 204289702U
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Abstract
The utility model discloses a kind of eyebrow shape microstrip antenna.It comprises substrate, circular patch, impedance matching input transmission line, a L shape ground plate, the 2nd L shape ground plate, rounded groove, ground plate; The upper surface of substrate is provided with circular patch, impedance matching input transmission line; The lower surface of substrate is provided with a L shape ground plate, the 2nd L shape ground plate, rounded groove, ground plate, ground plate is rectangle ground plate opened round fluting, and the upside of a L shape ground plate is connected with the upside of rounded groove, and the upside of the 2nd L shape ground plate is connected with the upside of rounded groove; Impedance matching input one end of transmission line is connected with the lower end of rounded groove, and the impedance matching input other end of transmission line is connected with the bottom of substrate, and the bottom of ground plate is connected with the low side of substrate.Utility model works has stable radiation characteristic in frequency band, and loss is low, and structure is simple, the advantages such as volume is little, easy to make.
Description
Technical field
The utility model relates to antenna, particularly relates to a kind of eyebrow shape microstrip antenna.
Background technology
The form of microstrip antenna has a variety of.According to the difference of paster and floor form, its kind can be divided into micro-strip paster antenna, micro-strip oscillator antenna, microstrip slot antenna etc.Due to the shape of microstrip antenna self and the particularity of material, make the advantage that it has other antennas incomparable in a lot of field, such as, volume is little, lightweight, low throwing face, low cost of manufacture, technological requirement is low, robustness, planar structure easily and antenna carrier is surperficial conformal and with microwave radio integrated circuit and optoelectronic IC technical compatibility etc.So microstrip antenna undergoes an unusual development rapidly, just cause the very big concern in antenna works field short decades.Just because of this, microstrip antenna oneself be widely used in the markets such as person communication system (PCS), global positioning system (GPS), direct broadcasting satellite (DBS), WLAN (WLANS) and intelligent freeway traffic system (IVHS).But contradiction is always ubiquitous.Microstrip antenna also has self geneogenous shortcoming, as: bandwidth is narrower, and makes its radiation efficiency relatively low due to surface actuator, conductor and dielectric loss.Although some problem is not solved, one flaw cannot mar the jade, and microstrip antenna inherent advantages are that its development speed in field of antenna holds a safe lead.
Along with the development of microwave integrated technology and space technology are to the active demand of low profile antenna, expand in the world and microstrip antenna extensively and is in depth studied.In addition, modern age, development communication technologies was rapid, and required transmission rate is more and more higher, and bandwidth is also more and more wider.Ultra-wideband Communication Technology is large with high speed, safety, capacity, the advantage not available for other narrow-band communication systems such as anti-multipath is subject to extensive concern.Broadband, new construction and high performance microstrip antenna continue to bring out.Ultra-wideband microstrip antenna has larger frequency band range, can meet the demand of each frequency range.Therefore, in the urgent need to working out small size, frequency band range is wide, the micro-strip paster antenna that radiation characteristic is good.
Summary of the invention
Loss is large in a wireless local area network in order to overcome prior art for the utility model, and the deficiency that gain is low, provides a kind of eyebrow shape microstrip antenna.
In order to achieve the above object, the technical solution of the utility model is as follows:
Eyebrow shape microstrip antenna comprises substrate, circular patch, impedance matching input transmission line, a L shape ground plate, the 2nd L shape ground plate, rounded groove, ground plate; The upper surface of substrate is provided with circular patch, impedance matching input transmission line; The lower surface of substrate is provided with a L shape ground plate, the 2nd L shape ground plate, rounded groove, ground plate, ground plate is rectangle ground plate opened round fluting, and the upside of a L shape ground plate is connected with the upside of rounded groove, and the upside of the 2nd L shape ground plate is connected with the upside of rounded groove; Impedance matching input one end of transmission line is connected with the lower end of rounded groove, and the impedance matching input other end of transmission line is connected with the bottom of substrate, and the bottom of ground plate is connected with the low side of substrate.
Described substrate is glass-epoxy material, and the length of substrate is 40mm ~ 41mm, and width is 30mm ~ 31mm.Described circular patch radius is 12mm ~ 13mm.A described L shape ground plate is identical with the 2nd L shape ground plate size shape, by a rectangle ground plate and an arc ground plate composition, wherein the length of rectangle ground plate is 2.1mm ~ 2.3mm, width is 0.4mm ~ 0.6mm, the outer radius of arc ground plate is 8.5mm ~ 8.6mm, Inner radius is 7.9mm ~ 8.1mm, and central angle is 37 ° ~ 39 °.Described rounded groove radius is 10mm ~ 11mm.The length of described impedance matching input transmission line is 7mm ~ 8mm, and width is 3mm ~ 4mm.The length of described ground plate is 40mm ~ 41mm, and width is 30mm ~ 31mm.
The utility model has stable radiation characteristic in working band, and loss is low, and structure is simple, the advantages such as volume is little, easy to make.
Accompanying drawing illustrates:
Fig. 1 is the Facad structure figure of eyebrow shape microstrip antenna;
Fig. 2 is the structure figure of eyebrow shape microstrip antenna;
Fig. 3 is the return loss plot figure of eyebrow shape microstrip antenna;
Fig. 4 is the E face of antenna when 6.03GHz, H surface radiation directional diagram;
Fig. 5 is the front face surface current density distributing figure of eyebrow shape microstrip antenna when 6.03GHz.
Fig. 6 is the backside surface current density distributing figure of eyebrow shape microstrip antenna when 6.03GHz.
Embodiment
As shown in Fig. 1 ~ 2, eyebrow shape microstrip antenna comprises substrate 1, circular patch 2, impedance matching input transmission line the 3, one L shape ground plate the 4, two L shape ground plate 5, rounded groove 6, ground plate 7; The upper surface of substrate 1 is provided with circular patch 2, impedance matching input transmission line 3; The lower surface of substrate 1 is provided with a L shape ground plate 4,2nd L shape ground plate 5, rounded groove 6, ground plate 7, ground plate 7 is rectangle ground plate opened round fluting 6, the upside of the one L shape ground plate 4 is connected with the upside of rounded groove 6, and the upside of the 2nd L shape ground plate 5 is connected with the upside of rounded groove 6; One end of impedance matching input transmission line 3 is connected with the lower end of rounded groove 6, and the other end of impedance matching input transmission line 3 is connected with the bottom of substrate 1, and the bottom of ground plate 7 is connected with the low side of substrate 1.
Described substrate 1 is glass-epoxy material, and the length of substrate 1 is 40mm ~ 41mm, and width is 30mm ~ 31mm.Described circular patch 2 radius is 12mm ~ 13mm.A described L shape ground plate 4 is identical with the 2nd L shape ground plate 5 size shape, by a rectangle ground plate and an arc ground plate composition, wherein the length of rectangle ground plate is 2.1mm ~ 2.3mm, width is 0.4mm ~ 0.6mm, the outer radius of arc ground plate is 8.5mm ~ 8.6mm, Inner radius is 7.9mm ~ 8.1mm, and central angle is 37 ° ~ 39 °.Described rounded groove 6 radius is 10mm ~ 11mm.The length of described impedance matching input transmission line 3 is 7mm ~ 8mm, and width is 3mm ~ 4mm.The length of described ground plate 7 is 40mm ~ 41mm, and width is 30mm ~ 31mm.
Embodiment 1
Eyebrow shape microstrip antenna:
Select dielectric constant be 4.4 glass-epoxy material make micro-belt substrate, thickness is 1.7mm.The length of substrate is 40mm, and width is 30mm.Circular patch radius is 12mm.One L shape ground plate is identical with the 2nd L shape ground plate size shape, and by a rectangle ground plate and an arc ground plate composition, wherein the length of rectangle ground plate is 2.2mm, width is 0.5mm, the outer radius of arc ground plate is 8.5mm, Inner radius is 8.0mm, and central angle is 38 °.Rounded groove radius is 10mm.The length of impedance matching input transmission line is 7mm, and width is 3mm.The length of ground plate is 40mm, and width is 30mm.The property indices of eyebrow shape microstrip antenna adopts CST software to test, and as shown in Figure 3, as seen from the figure, the working frequency range of below-10dB is 5.93GHz ~ 6.09GHz to the return loss plot of gained.Figure 4 shows that the E face of antenna when 6.03GHz, H face directional diagram, as seen from the figure, when frequency is 6.03GHz, the gain of antenna is 6.3dBi, and half power lobe width is 78.5 °.Fig. 5 is the front face surface current density distributing figure of antenna when 6.03GHz.Fig. 6 is the backside surface current density distributing figure of antenna when 6.03GHz.
Claims (7)
1. an eyebrow shape microstrip antenna, it is characterized in that comprising substrate (1), circular patch (2), impedance matching input transmission line (3), one L shape ground plate (4), 2nd L shape ground plate (5), rounded groove (6), ground plate (7); The upper surface of substrate (1) is provided with circular patch (2), impedance matching input transmission line (3); The lower surface of substrate (1) is provided with a L shape ground plate (4), 2nd L shape ground plate (5), rounded groove (6), ground plate (7), ground plate (7) is rectangle ground plate opened round fluting (6), the upside of the one L shape ground plate (4) is connected with the upside of rounded groove (6), and the upside of the 2nd L shape ground plate (5) is connected with the upside of rounded groove (6); One end of impedance matching input transmission line (3) is connected with the lower end of rounded groove (6), the other end of impedance matching input transmission line (3) is connected with the bottom of substrate (1), and the bottom of ground plate (7) is connected with the low side of substrate (1).
2. a kind of eyebrow shape microstrip antenna as claimed in claim 1, it is characterized in that described substrate (1) is glass-epoxy material, the length of substrate (1) is 40mm ~ 41mm, and width is 30mm ~ 31mm.
3. a kind of eyebrow shape microstrip antenna as claimed in claim 1, is characterized in that described circular patch (2) radius is 12mm ~ 13mm.
4. a kind of eyebrow shape microstrip antenna as claimed in claim 1, it is characterized in that a described L shape ground plate (4) is identical with the 2nd L shape ground plate (5) size shape, by a rectangle ground plate and an arc ground plate composition, wherein the length of rectangle ground plate is 2.1mm ~ 2.3mm, width is 0.4mm ~ 0.6mm, the outer radius of arc ground plate is 8.5mm ~ 8.6mm, and inside radius is 7.9mm ~ 8.1mm, and central angle is 37 ° ~ 39 °.
5. a kind of eyebrow shape microstrip antenna according to claim 1, is characterized in that described rounded groove (6) radius is 10mm ~ 11mm.
6. a kind of eyebrow shape microstrip antenna as claimed in claim 1, it is characterized in that the length of described impedance matching input transmission line (3) is 7mm ~ 8mm, width is 3mm ~ 4mm.
7. a kind of eyebrow shape microstrip antenna as claimed in claim 1, it is characterized in that the length of described ground plate (7) is 40mm ~ 41mm, width is 30mm ~ 31mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420778017.5U CN204289702U (en) | 2014-12-11 | 2014-12-11 | Eyebrow shape microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420778017.5U CN204289702U (en) | 2014-12-11 | 2014-12-11 | Eyebrow shape microstrip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204289702U true CN204289702U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420778017.5U Expired - Fee Related CN204289702U (en) | 2014-12-11 | 2014-12-11 | Eyebrow shape microstrip antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204289702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732446A (en) * | 2017-09-29 | 2018-02-23 | 崔洁 | A kind of circular patch microstrip antenna |
-
2014
- 2014-12-11 CN CN201420778017.5U patent/CN204289702U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732446A (en) * | 2017-09-29 | 2018-02-23 | 崔洁 | A kind of circular patch microstrip antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151211 |
|
| EXPY | Termination of patent right or utility model |