CN203423257U - Series-connected T-shaped microstrip antenna - Google Patents
Series-connected T-shaped microstrip antenna Download PDFInfo
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- CN203423257U CN203423257U CN201320520096.5U CN201320520096U CN203423257U CN 203423257 U CN203423257 U CN 203423257U CN 201320520096 U CN201320520096 U CN 201320520096U CN 203423257 U CN203423257 U CN 203423257U
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Abstract
The utility model discloses a series-connected T-shaped microstrip antenna, which comprises a substrate, a rectangular slotted radiation patch, a metal piece, a impedance matching input transmission line and a metal grounding plate, wherein the upper surface of the substrate is provided with the rectangular slotted radiation patch, the metal piece and the impedance matching input transmission line; the center of the rectangular slotted radiation patch is provided with a circular ring shaped slot and a circular slot; the rectangular slotted radiation patch is connected with the impedance matching input transmission line through the metal piece; the lower surface of the substrate is provided with the metal grounding plate; one end of the impedance matching input transmission line is connected with the metal piece, the other end of the impedance matching input transmission line is connected with the bottom end of the substrate, and the bottom end of the metal grounding plate is connected with the bottom end of the substrate. The series-connected T-shaped microstrip antenna has the advantages of low loss, good radiation characteristic, low cost, small size, easiness in manufacture, convenient integration and the like.
Description
Technical field
The utility model relates to antenna, relates in particular to the T-shaped microstrip antenna of a kind of serial connection.
Background technology
Microstrip antenna is compared and is had performance variation with conventional microwave antenna, can and active device, circuit be integrated into unified assembly, volume is little, low section, can with the plurality of advantages such as carrier (as aircraft) is conformal; Microstrip antenna has its unique advantage, and some shortcomings are also in research overcomes.For example, the narrower major defect that is generally considered to be microstrip antenna of relative bandwidth, but had now some to improve one's methods.In general, it in good location, can be used for radio communication, environment measuring equipment etc. in carry-on application.The application of microstrip antenna on ground installation also has the various civil equipment of its advantage, particularly lower-wattage, such as medical probe etc., because microstrip antenna can be integrated, makes it more obvious in the advantage of millimere-wave band.
In technical field of radio, for the transmission of information, the effect of antenna is indispensable.Along with social development and progress, also more and more higher to the requirement of communication, so the development of antenna is in the ascendant.Because the advantage of microstrip antenna has: low section, low cost also can be made into antenna multi-functional, can be conformal; Can be integrated into wireless device inside, can be used for indoorly, also can be used for outdoor; Its size is changeable, and its length and width of large microstrip antenna can arrive tens meters, and a secondary integrated broadband microstrip antenna in inside for PCs, its size is 15mm x15mm x1.5mm.Obviously, its advantage is obvious.At present, microstrip antenna, in space technology, is widely used in moving communication satellite and handheld portable communication equipment.So it is significant to study the high-quality microstrip antenna of miniaturization low-loss.
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 serial connection T-shaped microstrip antenna.
In order to achieve the above object, the technical solution of the utility model is as follows:
Be connected in series T-shaped microstrip antenna and comprise substrate, the shaped grooved radiation patch of rectangle, sheet metal, impedance matching input transmission line, metal ground plate; The upper surface of substrate is provided with the shaped grooved radiation patch of rectangle, sheet metal, impedance matching input transmission line; The center of the shaped grooved radiation patch of rectangle is provided with circular ring type fluting and rounded groove; The shaped grooved radiation patch of rectangle is connected by sheet metal with impedance matching input transmission line; The lower surface of substrate is provided with metal ground plate; One end of impedance matching input transmission line is connected with sheet metal, and the impedance matching input other end of transmission line and the bottom of substrate are connected, and the bottom of metal ground plate is connected with the bottom of substrate.
Described substrate is glass-epoxy material, and the length of substrate is 40mm～42mm, and wide is 40mm～42mm.The length of the described shaped grooved radiation patch of rectangle is 24mm～26mm, and wide is 12mm～13mm.The length of described sheet metal is 12mm～13mm, and wide is 4mm～5mm.The length of described impedance matching input transmission line is 14mm～15mm, and wide is 4mm～5mm.The outer radius of described circular ring type fluting is 5mm～6mm, and inside radius is 4mm～5mm.The radius of described rounded groove is 2mm～3mm.The length of described metal ground plate is 40mm～42mm, and wide is 19mm～19.5mm.
The utlity model has loss low, radiation characteristic is good, and cost is low, and size is little, is easy to make, and is convenient to the advantages such as integrated.
Accompanying drawing explanation:
Fig. 1 is the Facad structure figure of the T-shaped microstrip antenna of serial connection;
Fig. 2 is the structure figure of the T-shaped microstrip antenna of serial connection;
Fig. 3 is the loss figure of the T-shaped microstrip antenna of serial connection;
Fig. 4 is the E surface radiation directional diagram of the T-shaped microstrip antenna of serial connection when 14.05GHz;
Fig. 5 is the H surface radiation directional diagram of the T-shaped microstrip antenna of serial connection when 14.05GHz.
Embodiment
As shown in Fig. 1～2, be connected in series T-shaped microstrip antenna and comprise substrate 1, the shaped grooved radiation patch 2 of rectangle, sheet metal 3, impedance matching input transmission line 4, metal ground plate 7; The upper surface of substrate 1 is provided with the shaped grooved radiation patch 2 of rectangle, sheet metal 3, impedance matching input transmission line 4; The center of the shaped grooved radiation patch 2 of rectangle is provided with circular ring type fluting 5 and rounded groove 6; The shaped grooved radiation patch 2 of rectangle is connected by sheet metal 3 with impedance matching input transmission line 4; The lower surface of substrate 1 is provided with metal ground plate 7; One end of impedance matching input transmission line 4 is connected with sheet metal 3, and the other end of impedance matching input transmission line 4 is connected with the bottom of substrate 1, and the bottom of metal ground plate 7 is connected with the bottom of substrate 1.
Described substrate 1 is glass-epoxy material, and the length of substrate 1 is 40mm～42mm, and wide is 40mm～42mm.The length of the shaped grooved radiation patch 2 of described rectangle is 24mm～26mm, and wide is 12mm～13mm.The length of described sheet metal 3 is 12mm～13mm, and wide is 4mm～5mm.The length of described impedance matching input transmission line 4 is 14mm～15mm, and wide is 4mm～5mm.The outer radius of described circular ring type fluting 5 is 5mm～6mm, and inside radius is 4mm～5mm.The radius of described rounded groove 6 is 2mm～3mm.The length of described metal ground plate 7 is 40mm～42mm, and wide is 19mm～19.5mm.
Be connected in series T-shaped microstrip antenna:
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 40mm～42mm, and wide is 40mm～42mm.The length of the shaped grooved radiation patch of rectangle is 24mm～26mm, and wide is 12mm～13mm.The length of sheet metal is 12mm～13mm, and wide is 4mm～5mm.The length of impedance matching input transmission line is 14mm～15mm, and wide is 4mm～5mm.The outer radius of circular ring type fluting is 5mm～6mm, and inside radius is 4mm～5mm.The radius of rounded groove is 2mm～3mm.The length of metal ground plate is 40mm～42mm, and wide is 19mm～19.5mm.The property indices that is connected in series T-shaped microstrip antenna adopts CST software to test, and the damage curve of gained as shown in Figure 3.As seen from the figure ,-working frequency range below 10dB is 12.5GHz～14.92GHz.Fig. 4-5 are depicted as E face and the H face directional diagram of the T-shaped microstrip antenna of serial connection when 14.05GHz, as seen from the figure, when frequency is 14.05GHz, gain as 3.7dBi, and half power lobe width is 35.4 °.
Claims (8)
1. the T-shaped microstrip antenna of serial connection, is characterized in that comprising substrate (1), the shaped grooved radiation patch of rectangle (2), sheet metal (3), impedance matching input transmission line (4), metal ground plate (7); The upper surface of substrate (1) is provided with the shaped grooved radiation patch of rectangle (2), sheet metal (3), impedance matching input transmission line (4); The center of the shaped grooved radiation patch of rectangle (2) is provided with circular ring type fluting (5) and rounded groove (6); The shaped grooved radiation patch of rectangle (2) is connected by sheet metal (3) with impedance matching input transmission line (4); The lower surface of substrate (1) is provided with metal ground plate (7); One end of impedance matching input transmission line (4) is connected with sheet metal (3), the other end of impedance matching input transmission line (4) is connected with the bottom of substrate (1), and the bottom of metal ground plate (7) is connected with the bottom of substrate (1).
2. the T-shaped microstrip antenna of a kind of serial connection as claimed in claim 1, is characterized in that described substrate (1) is glass-epoxy material, and the length of substrate (1) is 40mm～42mm, and wide is 40mm～42mm.
3. the T-shaped microstrip antenna of a kind of serial connection as claimed in claim 1, is characterized in that the length of the described shaped grooved radiation patch of rectangle (2) is 24mm～26mm, and wide is 12mm～13mm.
4. the T-shaped microstrip antenna of a kind of serial connection as claimed in claim 1, is characterized in that the length of described sheet metal (3) is 12mm～13mm, and wide is 4mm～5mm.
5. the T-shaped microstrip antenna of a kind of serial connection as claimed in claim 1, is characterized in that the length of described impedance matching input transmission line (4) is 14mm～15mm, and wide is 4mm～5mm.
6. the T-shaped microstrip antenna of a kind of serial connection as claimed in claim 1, is characterized in that the outer radius of described circular ring type fluting (5) is 5mm～6mm, and inside radius is 4mm～5mm.
7. the T-shaped microstrip antenna of a kind of serial connection as claimed in claim 1, is characterized in that the radius of described rounded groove (6) is 2mm～3mm.
8. the T-shaped microstrip antenna of a kind of serial connection as claimed in claim 1, is characterized in that the length of described metal ground plate (7) is 40mm～42mm, and wide is 19mm～19.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520096.5U CN203423257U (en) | 2013-08-22 | 2013-08-22 | Series-connected T-shaped microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520096.5U CN203423257U (en) | 2013-08-22 | 2013-08-22 | Series-connected T-shaped microstrip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203423257U true CN203423257U (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320520096.5U Expired - Fee Related CN203423257U (en) | 2013-08-22 | 2013-08-22 | Series-connected T-shaped microstrip antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203423257U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466381A (en) * | 2014-12-19 | 2015-03-25 | 郑召文 | Step-shaped slotted ultra-wideband microstrip antenna |
| CN104659480A (en) * | 2015-02-13 | 2015-05-27 | 深圳市大疆创新科技有限公司 | Impedance matching structure, antenna assembly and aircraft as well as impedance matching method of aircraft |
| CN105900283A (en) * | 2014-11-27 | 2016-08-24 | 华为技术有限公司 | Antenna assembly, antenna, and small-cell base station |
-
2013
- 2013-08-22 CN CN201320520096.5U patent/CN203423257U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105900283A (en) * | 2014-11-27 | 2016-08-24 | 华为技术有限公司 | Antenna assembly, antenna, and small-cell base station |
| CN104466381A (en) * | 2014-12-19 | 2015-03-25 | 郑召文 | Step-shaped slotted ultra-wideband microstrip antenna |
| CN104659480A (en) * | 2015-02-13 | 2015-05-27 | 深圳市大疆创新科技有限公司 | Impedance matching structure, antenna assembly and aircraft as well as impedance matching method of aircraft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140205 Termination date: 20140822 |
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| EXPY | Termination of patent right or utility model |