CN203134969U - Symmetric-type double-frequency printing monopole microstrip antenna - Google Patents
Symmetric-type double-frequency printing monopole microstrip antenna Download PDFInfo
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- CN203134969U CN203134969U CN2013200228682U CN201320022868U CN203134969U CN 203134969 U CN203134969 U CN 203134969U CN 2013200228682 U CN2013200228682 U CN 2013200228682U CN 201320022868 U CN201320022868 U CN 201320022868U CN 203134969 U CN203134969 U CN 203134969U
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Abstract
The utility model discloses a symmetric-type double-frequency printing monopole microstrip antenna, which includes a substrate, a stepped T-shaped radiation paster, a recessed double-wing radiation paster, an impedance matching input transmission line, a symmetric L-shaped transmission microstrip line, and a rectangular metal ground plate. The upper surface of the substrate is provided with the stepped T-shaped radiation paster, the recessed double-wing radiation paster, the impedance matching input transmission line, and the symmetric L-shaped transmission microstrip line. The lower surface of the substrate is provided with the rectangular metal ground plate. The bottom of the rectangular metal ground plate is connected with the bottom of the substrate. The microstrip substrate of the utility model adopts a glass fiber epoxy resin material, and is low in cost, good in radiation characteristics, simple in structure, small in size, and easy for integration.
Description
Technical field
The utility model relates to antenna, relates in particular to the sub-microstrip antenna of the double-band printed one pole of a kind of symmetrical expression.
Technical background
Be accompanied by the fast development of modern wireless telecommunication system and mobile communication, the demand of the dual-band antenna of novelty is increased gradually, the research for the double frequency that is applied to various wireless telecommunications and multifrequency antenna is simultaneously also increasing.For example, be operated in 5.51～5.35GHz, 5.725～5.825GHz is applicable to the WLAN (wireless local area network) of IEEE802.11b and IEEE802.11a standard.Therefore, the monopole antenna of some one-segment just is not suitable for this type of application.Also design has proposed new requirement to antenna in scientific and technological progress simultaneously, as ground section, low-loss, multiple-frequency operation and be easy to integrated etc.In antenna form miscellaneous, printed monopole antenna is little with its volume, cost is low, simple in structure, be easy to processing and be easy to realize that multiple-frequency operation lamp characteristics have obtained extensive use in field of wireless communication.
In recent years, at multifrequency and miniaturization a lot of research methods has appearred.The structure of paster fluting and employing double-layer paster is to realize two kinds of the most frequently used methods of double frequency.The method that adopts paster to load U-shaped groove and T type groove realizes double frequency, but patch size is bigger.Adopt paster to load cannelure, the method for feed microstrip line designs, and antenna size covers the frequency range (5.725～5.825GHz) that WLAN requires more greatly and not.Adopt the double-layer paster structure, do not had to cover (2.40～2.4835GHz) frequency ranges and increased the height of antenna; The method that antenna miniaturization is used always is to load short circuit face or grounding probe between ground plate and radiation patch.More than the requirement such as multifrequency, miniaturization that can solve antenna well of these methods, be that independent use can not effectively solve a plurality of problems in the reality.
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 double-band printed one pole of a kind of symmetrical expression microstrip antenna.
In order to achieve the above object, the technical solution of the utility model is as follows:
The sub-microstrip antenna of the double-band printed one pole of symmetrical expression comprises substrate, staged T shape radiation patch, groove type double-vane radiation patch, impedance matching input transmission line, symmetrical L shaped transmission microstrip line, rectangular metal ground plate; The upper surface of substrate is provided with staged T shape radiation patch, groove type double-vane radiation patch, anti-coupling input transmission line and symmetrical L shaped transmission microstrip line, the ladder top of staged T shape radiation patch is connected with the top of substrate, the bottom, ladder center of staged T shape radiation patch links to each other with the groove center of groove type double-vane radiation patch, one section of the bottom of groove type double-vane radiation patch and impedance matching input transmission line links to each other, the other end of impedance matching input transmission line links to each other with the bottom of substrate, the lower surface of substrate is provided with the rectangular metal ground plate, and the bottom of rectangular metal ground plate links to each other with the bottom of substrate.
Described substrate is the glass-epoxy material.The width of described substrate is 20mm～25mm, highly is 25mm～30mm.The exponent number of described staged T shape radiation patch is 3 rank, and overall width is 20mm～22mm, and ladder height is 4mm～5mm, and T shape total height is 14mm～15mm, and T shape bottom micro belt line width is 1mm～2mm.The depth of groove of described groove type double-vane radiation patch is 5mm～10mm, and recess width is for being 1mm～2mm, and double-vane is symmetrical ladder structure of right angle, and trapezoidal last base is elongated to be 1mm～2mm, and the bottom length of side is 4mm～5mm, and height is 5mm～6mm.The length of described impedance matching input transmission line is 10mm～12mm, and micro belt line width is 3mm～4mm.Two vertical edges appearance of the L shaped transmission microstrip line of described symmetry etc. are 4mm～5mm, and micro belt line width is 0.5mm～1mm.The length of described rectangular metal ground plate is 20mm～25mm, and width is 10mm～15mm.。
The little belt substrate of the utility model uses the glass-epoxy 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 the sub-microstrip antenna of the double-band printed one pole of symmetrical expression;
Fig. 2 is the structure rearview of the sub-microstrip antenna of the double-band printed one pole of symmetrical expression;
Fig. 3 is the insertion loss figure of the sub-microstrip antenna of the double-band printed one pole of symmetrical expression;
Fig. 4 is the E surface radiation directional diagram of the sub-microstrip antenna of the double-band printed one pole of symmetrical expression when 2.4GHz;
Fig. 5 is the H surface radiation directional diagram of the sub-microstrip antenna of the double-band printed one pole of symmetrical expression when 2.4GHz;
Fig. 6 is the E surface radiation directional diagram of the sub-microstrip antenna of the double-band printed one pole of symmetrical expression when 5.2GHz;
Fig. 7 is the H surface radiation directional diagram of the sub-microstrip antenna of the double-band printed one pole of symmetrical expression when 5.2GHz;
Fig. 8 is the E surface radiation directional diagram of the sub-microstrip antenna of the double-band printed one pole of symmetrical expression when 5.8GHz;
Fig. 9 is the H surface radiation directional diagram of the sub-microstrip antenna of the double-band printed one pole of symmetrical expression when 5.8GHz.
Embodiment
As shown in Figure 1, the sub-microstrip antenna of the double-band printed one pole of symmetrical expression comprises substrate 1, staged T shape radiation patch 2, groove type double-vane radiation patch 3, impedance matching input transmission line 4, symmetrical L shaped transmission microstrip line 6, rectangular metal ground plate 7; The upper surface of substrate 1 is provided with staged T shape radiation patch 2, groove type double-vane radiation patch 3, anti-coupling input transmission line 4 and symmetrical L shaped transmission microstrip line 6, the ladder top of staged T shape radiation patch 2 is connected with the top of substrate 1, the bottom, ladder center of staged T shape radiation patch 2 links to each other with the groove center of groove type double-vane radiation patch 3, one section of the bottom of groove type double-vane radiation patch 3 and impedance matching input transmission line 4 links to each other, the other end of impedance matching input transmission line 4 links to each other with the bottom of substrate 1, the lower surface of substrate 1 is provided with rectangular metal ground plate 7, and the bottom of rectangular metal ground plate 7 links to each other with the bottom of substrate 1.
Described substrate 1 is the glass-epoxy material.The width of described substrate 1 is 20mm～25mm, highly is 25mm～30mm.The exponent number of described staged T shape radiation patch 2 is 3 rank, and overall width is 20mm～22mm, and ladder height is 4mm～5mm, and T shape total height is 14mm～15mm, and T shape bottom micro belt line width is 1mm～2mm.The depth of groove of described groove type double-vane radiation patch 3 is 5mm～10mm, and recess width is for being 1mm～2mm, and double-vane is symmetrical ladder structure of right angle, and trapezoidal last base is elongated to be 1mm～2mm, and the bottom length of side is 4mm～5mm, and height is 5mm～6mm.The length of described impedance matching input transmission line 4 is 10mm～12mm, and micro belt line width is 3mm～4mm.Two vertical edges appearance of the L shaped transmission microstrip line 6 of described symmetry etc. are 4mm～5mm, and micro belt line width is 0.5mm～1mm.The length of described rectangular metal ground plate 7 is 20mm～25mm, and width is 10mm～15mm.
The sub-microstrip antenna of the double-band printed one pole of symmetrical expression:
Selecting dielectric constant is that 4.9 glass-epoxy material is made little belt substrate, and thickness is 1.6mm.The width of substrate is 20mm, highly is 26mm.The exponent number of staged T shape radiation patch is 3 rank, and overall width is 20mm, and ladder height is 4.5mm, and T shape total height is 15mm, and T shape bottom micro belt line width is 1mm.The depth of groove of groove type double-vane radiation patch is 8mm, and recess width is for being 2mm, and double-vane is symmetrical ladder structure of right angle, and trapezoidal last base is elongated to be 1mm, and the bottom length of side is 4mm, and height is 6mm.The length of impedance matching input transmission line is 11mm, and micro belt line width is 3.2mm.Two vertical edges appearance of the L shaped transmission microstrip line of symmetry etc. are 5mm, and micro belt line width is 0.5mm.The length of rectangular metal ground plate is 20mm, and width is 13.5mm.Every performance index of the sub-microstrip antenna of the double-band printed one pole of symmetrical expression adopt CST software to test the insertion damage curve of gained such as accompanying drawing 3.As seen from the figure, the following working frequency range of-10dB is respectively 2.40-2.64GHz and 4.37-6.99GHz, Fig. 4-9 is depicted as the sub-microstrip antenna of the double-band printed one pole of symmetrical expression the E face when 2.4GHz, 5.2GHz, 5.8GHz and H face directional diagram respectively, as seen from the figure, when frequency is 2.4GHz, gain is 2.1dBi, the half power lobe width is 88.4 °, when frequency is 5.2GHz, gain is 3.5dBi, and the half power lobe width is 77.8 °, when frequency is 5.8GHz, gain is 3.8dBi, and the half power lobe width is 72 °.
Claims (8)
1. sub-microstrip antenna of the double-band printed one pole of symmetrical expression, it is characterized in that comprising substrate (1), staged T shape radiation patch (2), groove type double-vane radiation patch (3), impedance matching input transmission line (4), symmetry L shaped transmission microstrip line (6), rectangular metal ground plate (7); The upper surface of substrate (1) is provided with staged T shape radiation patch (2), groove type double-vane radiation patch (3), anti-coupling input transmission line (4) and symmetrical L shaped transmission microstrip line (6), the ladder top of staged T shape radiation patch (2) is connected with the top of substrate (1), the bottom, ladder center of staged T shape radiation patch (2) links to each other with the groove center of groove type double-vane radiation patch (3), one section of the bottom of groove type double-vane radiation patch (3) and impedance matching input transmission line (4) links to each other, the other end of impedance matching input transmission line (4) links to each other with the bottom of substrate (1), the lower surface of substrate (1) is provided with rectangular metal ground plate (7), and the bottom of rectangular metal ground plate (7) links to each other with the bottom of substrate (1).
2. the sub-microstrip antenna of the double-band printed one pole of a kind of symmetrical expression as claimed in claim 1 is characterized in that described substrate (1) is the glass-epoxy material.
3. the sub-microstrip antenna of the double-band printed one pole of a kind of symmetrical expression as claimed in claim 1, the width that it is characterized in that described substrate (1) is 20mm～25mm, highly is 25mm～30mm.
4. the sub-microstrip antenna of the double-band printed one pole of a kind of symmetrical expression as claimed in claim 1, the exponent number that it is characterized in that described staged T shape radiation patch (2) is 3 rank, overall width is 20mm～22mm, ladder height is 4mm～5mm, T shape total height is 14mm～15mm, and T shape bottom micro belt line width is 1mm～2mm.
5. the sub-microstrip antenna of the double-band printed one pole of a kind of symmetrical expression as claimed in claim 1, the depth of groove that it is characterized in that described groove type double-vane radiation patch (3) is 5mm～10mm, recess width is for being 1mm～2mm, double-vane is symmetrical ladder structure of right angle, trapezoidal last base is elongated to be 1mm～2mm, the bottom length of side is 4mm～5mm, and height is 5mm～6mm.
6. the sub-microstrip antenna of the double-band printed one pole of a kind of symmetrical expression as claimed in claim 1 is characterized in that the length of described impedance matching input transmission line (4) is 10mm～12mm, and micro belt line width is 3mm～4mm.
7. the sub-microstrip antenna of the double-band printed one pole of a kind of symmetrical expression as claimed in claim 1 is characterized in that two vertical edges appearance of the L shaped transmission microstrip line of described symmetry (6) etc., is 4mm～5mm, and micro belt line width is 0.5mm～1mm.
8. the sub-microstrip antenna of the double-band printed one pole of a kind of symmetrical expression as claimed in claim 1, the length that it is characterized in that described rectangular metal ground plate (7) is 20mm～25mm, width is 10mm～15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200228682U CN203134969U (en) | 2013-01-14 | 2013-01-14 | Symmetric-type double-frequency printing monopole microstrip antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200228682U CN203134969U (en) | 2013-01-14 | 2013-01-14 | Symmetric-type double-frequency printing monopole microstrip antenna |
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| CN203134969U true CN203134969U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013200228682U Expired - Fee Related CN203134969U (en) | 2013-01-14 | 2013-01-14 | Symmetric-type double-frequency printing monopole microstrip antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375153A (en) * | 2014-11-18 | 2015-02-25 | 无锡悟莘科技有限公司 | Satellite positioning system based on nested type antenna |
| CN114094329A (en) * | 2021-11-22 | 2022-02-25 | 江苏科技大学 | Symmetrical top Peano fractal loaded microstrip patch antenna |
-
2013
- 2013-01-14 CN CN2013200228682U patent/CN203134969U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375153A (en) * | 2014-11-18 | 2015-02-25 | 无锡悟莘科技有限公司 | Satellite positioning system based on nested type antenna |
| CN114094329A (en) * | 2021-11-22 | 2022-02-25 | 江苏科技大学 | Symmetrical top Peano fractal loaded microstrip patch antenna |
| CN114094329B (en) * | 2021-11-22 | 2023-10-03 | 江苏科技大学 | Symmetrical top Peano fractal loaded microstrip patch antenna |
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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: 20130814 Termination date: 20140114 |