CN203134968U - Round coplanar feed single frequency microstrip antenna - Google Patents
Round coplanar feed single frequency microstrip antenna Download PDFInfo
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- CN203134968U CN203134968U CN 201320022858 CN201320022858U CN203134968U CN 203134968 U CN203134968 U CN 203134968U CN 201320022858 CN201320022858 CN 201320022858 CN 201320022858 U CN201320022858 U CN 201320022858U CN 203134968 U CN203134968 U CN 203134968U
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- input transmission
- transmission line
- microstrip antenna
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Abstract
The utility model discloses a round coplanar feed single frequency microstrip antenna. The microstrip antenna includes a substrate, a circular radiation paster, a microstrip connection line, an impedance matching input transmission line, and metal ground plates. The surface of the substrate is provided with the circular radiation paster, the microstrip connection line, the impedance matching input transmission line and the metal ground plates. The circular radiation paster is provided a semicircle gap. The central bottom of the circular radiation paster is connected with one end of the microstrip connection line. The other end of the microstrip connection line is connected with the impedance matching input transmission line. The impedance matching input transmission line is connected with an S-shaped gap. The two metal ground plates are respectively arranged at the places of 1-2mm away from the two ends of the impedance matching input transmission line. The bottoms of the impedance matching input transmission line and the metal ground plates are connected with the bottom of the substrate. The microstrip substrate is made of a taconic material, and the microstrip antenna has the advantages of low cost, good radiation characteristics, simple and small structure, and easy integration.
Description
Technical field
The utility model relates to antenna, relates in particular to the coplanar feed-type single-frequency of a kind of circle microstrip antenna.
Technical background
For the mobile radio system of fast development, antenna is one of its imperative equipment.Utilize antenna, radio-frequency power can be coupled in the free space, and launch terminal is launched electromagnetic wave information, and receiving terminal is caught the electromagnetic wave information that incident comes.Antenna both can be a simple lead, also can be baroque active electronic equipment.The superior antenna of design can not only satisfy the demand of system and can improve the performance of whole system.The trend of portable terminal development now is more and more to light and handy, low consumption, portable and multifunctional direction development, so the performance of terminal antenna has also been proposed ask for something such as miniaturization, multiband, broadband and high-gain.And microstrip antenna is because its compact conformation, volume is little, in light weight and easily realize advantage such as two (many) frequency ranges work, can be good at satisfying mobile communication system for the terminal antenna performance demands, thereby in mobile communication system, obtained using very widely.The microstrip antenna of small design multiband has become one of the emphasis of current terminal antenna research and focus.
The scope of using along with microstrip antenna more and more widely, domestic and international many scholars and Application Engineer are also more and more deep to Study of Microstrip Antennas, have particularly obtained significant achievement at the aspects such as miniaturization, multifrequencyization, circular polarization and broadband technology of antenna.In order to satisfy the requirement on frequency, polarization, bandwidth and the integrated antenna volume, cooperating different feeding classifications and designed the different antenna of various structures.
Summary of the invention
The utility model is big in order to overcome prior art loss in WLAN (wireless local area network), and the low deficiency that gains provides the coplanar feed-type single-frequency of a kind of circle microstrip antenna.
In order to achieve the above object, the technical solution of the utility model is as follows:
Circular coplanar feed-type single-frequency microstrip antenna comprises substrate, circular radiation patch, little band connecting line, impedance matching input transmission line, metal ground plate; The surface of substrate is provided with circular radiation patch, little band connecting line, impedance matching input transmission line and metal ground plate, circular radiation patch is provided with semicircle slit, the bottom, center of circular radiation patch links to each other with little band connecting line one end, the other end of little band connecting line links to each other with impedance matching input transmission line, impedance matching input transmission line is provided with S shape slit, the distance of impedance matching input transmission line two ends 1mm～2mm is provided with two metal ground plates of symmetry, and the bottom of impedance matching input transmission line and metal ground plate is connected with the bottom of substrate.
Described substrate is the Tai Kangli material.The width of described substrate is 30mm～32mm, highly is 25mm～35mm.The radius of described circular radiation patch is 5mm～10mm.The exradius in described semicircle slit is 5mm～10mm, and gap width is 0.2mm～0.7mm.The length of described little band connecting line is 3mm～5mm, and micro belt line width is 1mm～2mm.The width of described impedance matching input transmission line is 4mm～5mm, and the microstrip line height is 15mm～20mm.The overall width in described S shape slit is 2mm～5mm, and total height is 5mm～10mm.The width of described metal ground plate is 15mm～20mm.
The little belt substrate of the utility model uses the Tai Kangli material, and it is low, simple in structure small-sized to have a cost, is convenient to integrated.
Description of drawings:
Fig. 1 is the structural front view of circular coplanar feed-type single-frequency microstrip antenna;
Fig. 2 is the insertion loss figure of circular coplanar feed-type single-frequency microstrip antenna;
Fig. 3 is the E surface radiation directional diagram of circular coplanar feed-type single-frequency microstrip antenna when 3.5GHz;
Fig. 4 is the H surface radiation directional diagram of circular coplanar feed-type single-frequency microstrip antenna when 3.5GHz.
Embodiment
As shown in Figure 1, circular coplanar feed-type single-frequency microstrip antenna comprises substrate 1, circular radiation patch 2, little band connecting line 4, impedance matching input transmission line 5, metal ground plate 7; The surface of substrate 1 is provided with circular radiation patch 2, little band connecting line 4, impedance matching input transmission line 5 and metal ground plate 7, circular radiation patch 2 is provided with semicircle slit 3, the bottom, center of circular radiation patch 2 links to each other with little band connecting line 4 one ends, the other end of little band connecting line 4 links to each other with impedance matching input transmission line 5, impedance matching input transmission line 5 is provided with S shape slit 6, the distance of impedance matching input transmission line 5 two ends 1mm～2mm is provided with two metal ground plates 7 of symmetry, and the bottom of impedance matching input transmission line 5 and metal ground plate 7 is connected with the bottom of substrate 1.
Described substrate 1 is the Tai Kangli material.The width of described substrate 1 is 30mm～32mm, highly is 25mm～35mm.The radius of described circular radiation patch 2 is 5mm～10mm.The exradius in described semicircle slit 3 is 5mm～10mm, and gap width is 0.2mm～0.7mm.The length of described little band connecting line 4 is 3mm～5mm, and micro belt line width is 1mm～2mm.The width of described impedance matching input transmission line 5 is 4mm～5mm, and the microstrip line height is 15mm～20mm.The overall width in described S shape slit 6 is 2mm～5mm, and total height is 5mm～10mm.The width of described metal ground plate 7 is 15mm～20mm.
Circular coplanar feed-type single-frequency microstrip antenna:
Selecting dielectric constant is that 2.65 Tai Kangli material is made little belt substrate, and thickness is 0.8mm.The width of substrate is 32mm, highly is 35mm.The radius of circular radiation patch is 8mm.The exradius in semicircle slit is 6mm. gap width is 0.6mm.The length of little band connecting line is 5mm, and micro belt line width is 1mm.The width of impedance matching input transmission line is 4.5mm, and the microstrip line height is 16.5mm.The overall width in S shape slit is 4.7mm, and total height is 8mm.The width of metal ground plate is 17.2mm.Every performance index of circular coplanar feed-type single-frequency microstrip antenna adopt CST software to test the insertion damage curve of gained such as accompanying drawing 2.As seen from the figure, the following working frequency range of-10dB is respectively 2.9867-4.9882GHz, Fig. 3-4 is depicted as circular coplanar feed-type single-frequency microstrip antenna the E face when 3.5GHz and H face directional diagram respectively, as seen from the figure, when frequency is 3.5GHz, gain is 2.7dBi, and the half power lobe width is 80.2 °.
Claims (9)
1. the coplanar feed-type single-frequency of a circle microstrip antenna is characterized in that comprising substrate (1), circular radiation patch (2), little band connecting line (4), impedance matching input transmission line (5), metal ground plate (7); The surface of substrate (1) is provided with circular radiation patch (2), little band connecting line (4), impedance matching input transmission line (5) and metal ground plate (7), circular radiation patch (2) is provided with semicircle slit (3), the bottom, center of circular radiation patch (2) links to each other with little band connecting line (4) one ends, the other end of little band connecting line (4) links to each other with impedance matching input transmission line (5), impedance matching input transmission line (5) is provided with S shape slit (6), the distance of impedance matching input transmission line (5) two ends 1mm～2mm is provided with two metal ground plates (7) of symmetry, and the bottom of impedance matching input transmission line (5) and metal ground plate (7) is connected with the bottom of substrate (1).
2. the coplanar feed-type single-frequency of a kind of circle as claimed in claim 1 microstrip antenna is characterized in that described substrate (1) is the Tai Kangli material.
3. the coplanar feed-type single-frequency of a kind of circle as claimed in claim 1 microstrip antenna, the width that it is characterized in that described substrate (1) is 30mm～32mm, highly is 25mm～35mm.
4. the coplanar feed-type single-frequency of a kind of circle as claimed in claim 1 microstrip antenna, the radius that it is characterized in that described circular radiation patch (2) is 5mm～10mm.
5. the coplanar feed-type single-frequency of a kind of circle as claimed in claim 1 microstrip antenna, the exradius that it is characterized in that described semicircle slit (3) is 5mm～10mm, gap width is 0.2mm～0.7mm.
6. the coplanar feed-type single-frequency of a kind of circle as claimed in claim 1 microstrip antenna, the length that it is characterized in that described little band connecting line (4) is 3mm～5mm, micro belt line width is 1mm～2mm.
7. the coplanar feed-type single-frequency of a kind of circle as claimed in claim 1 microstrip antenna is characterized in that the width of described impedance matching input transmission line (5) is 4mm～5mm, and the microstrip line height is 15mm～20mm.
8. the coplanar feed-type single-frequency of a kind of circle as claimed in claim 1 microstrip antenna, the overall width that it is characterized in that described S shape slit (6) is 2mm～5mm, total height is 5mm～10mm.
9. the coplanar feed-type single-frequency of a kind of circle as claimed in claim 1 microstrip antenna, the width that it is characterized in that described metal ground plate (7) is 15mm～20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320022858 CN203134968U (en) | 2013-01-14 | 2013-01-14 | Round coplanar feed single frequency microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320022858 CN203134968U (en) | 2013-01-14 | 2013-01-14 | Round coplanar feed single frequency microstrip antenna |
Publications (1)
| Publication Number | Publication Date |
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| CN203134968U true CN203134968U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320022858 Expired - Fee Related CN203134968U (en) | 2013-01-14 | 2013-01-14 | Round coplanar feed single frequency microstrip antenna |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762417A (en) * | 2013-12-31 | 2014-04-30 | 电子科技大学 | Three-frequency-band monopole antenna |
| CN104409836A (en) * | 2014-12-09 | 2015-03-11 | 成都国蓉科技有限公司 | Electromagnetic wave transmitter |
| WO2019069216A1 (en) * | 2017-10-02 | 2019-04-11 | Nokia Shanghai Bell Co., Ltd | Antenna and method of assembly of such antenna |
| CN109638453A (en) * | 2018-12-03 | 2019-04-16 | Oppo广东移动通信有限公司 | Antenna module and electronic equipment |
-
2013
- 2013-01-14 CN CN 201320022858 patent/CN203134968U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762417A (en) * | 2013-12-31 | 2014-04-30 | 电子科技大学 | Three-frequency-band monopole antenna |
| CN103762417B (en) * | 2013-12-31 | 2016-02-10 | 电子科技大学 | Three frequency range monopole antennas |
| CN104409836A (en) * | 2014-12-09 | 2015-03-11 | 成都国蓉科技有限公司 | Electromagnetic wave transmitter |
| WO2019069216A1 (en) * | 2017-10-02 | 2019-04-11 | Nokia Shanghai Bell Co., Ltd | Antenna and method of assembly of such antenna |
| US11258178B2 (en) | 2017-10-02 | 2022-02-22 | Nokia Shanghai Bell Co., Ltd. | Antenna and method of assembly of such antenna |
| CN109638453A (en) * | 2018-12-03 | 2019-04-16 | Oppo广东移动通信有限公司 | Antenna module and electronic equipment |
| CN109638453B (en) * | 2018-12-03 | 2021-04-02 | Oppo广东移动通信有限公司 | Antenna assembly and electronic equipment |
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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: 20130814 Termination date: 20140114 |