CN203134974U - Coplanar waveguide type double-frequency microstrip antenna - Google Patents
Coplanar waveguide type double-frequency microstrip antenna Download PDFInfo
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- CN203134974U CN203134974U CN 201320048577 CN201320048577U CN203134974U CN 203134974 U CN203134974 U CN 203134974U CN 201320048577 CN201320048577 CN 201320048577 CN 201320048577 U CN201320048577 U CN 201320048577U CN 203134974 U CN203134974 U CN 203134974U
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Abstract
The utility model discloses a coplanar waveguide type double-frequency microstrip antenna. The antenna comprises a substrate, a radiation paster, a concave groove, an impedance match input transmission line and metal ground plates. The surface of the substrate is provided with the radiation paster, the impedance match input transmission line and the metal ground plates; the radiation paster is provided with the concave groove; the central bottom end of the rectangular radiation paster is connected to one end of the impedance match input transmission line, and the other end of the impedance match input transmission line is connected to the bottom end of the substrate; two ends of the impedance match input transmission line are provided with the metal ground plates; and bottom ends of the metal ground plates are connected with the bottom end of the substrate. The microstrip substrate disclosed by the utility model uses a glass fiber epoxy resin material, and has advantages of low cost, stable radiation characteristic, low loss, simple and miniature structure, and convenience for integration.
Description
Technical field
The utility model relates to antenna, relates in particular to a kind of co-planar waveguide formula double-frequency micro-strip antenna.
Background technology
Antenna is requisite assembly in any radio transceiver system, and its function is radiation or receives radio wave from free space.In emission system, the effect of antenna is that high-frequency current is converted into the electromagnetic wave of propagating in free space.And in receiving system, the effect of antenna is that the electromagnetic wave from free space that will receive is converted into high-frequency current.Along with mobile communication technology, space technology and development of electronic technology, various electronic equipments all develop towards miniaturization.In mobile communication, people press for the mobile terminal device of miniaturization, and this will little, the lightweight antenna of cube; In field of aerospace, because aircraft space is limited, section is low, size is little, lightweight antenna so press for; In addition, indoor short distance communication also all needs miniature antenna such as Bluetooth communication, radio-frequency (RF) identification, wireless mouse etc.Although traditional dipole antenna has transmission characteristic preferably, the size of dipole antenna can't adapt to the development trend of wireless electric device miniaturization.And microstrip antenna has that volume is little, quality is light, cost is low, make easily and can be directly and characteristics such as radio frequency microwave circuit is integrated, and therefore one have very big practical engineering application value.On the other hand, electronics miniaturization, microminiaturization and integrated development are had higher requirement to the miniaturization of communication equipment.Antenna is as the front end component of Wireless Telecom Equipment and radio transmission apparatus, and the size of whole communication system, communication quality, transfer of data etc. are played crucial effects.Therefore, the Miniaturization Research of microstrip antenna has become the popular domain in the antenna research.
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 a kind of co-planar waveguide formula double-frequency micro-strip antenna.
In order to achieve the above object, the technical solution of the utility model is as follows:
Co-planar waveguide formula double-frequency micro-strip antenna comprises substrate, radiation patch, Baltimore groove, impedance matching input transmission line, metal ground plate; The surface of substrate is provided with radiation patch, impedance matching input transmission line and metal ground plate, radiation patch is provided with Baltimore groove, the bottom, center of rectangular radiation patch is connected with impedance matching input transmission line one end, the other end of impedance matching input transmission line is connected with the bottom of substrate, impedance matching input transmission line two ends are provided with metal ground plate, and the bottom of metal ground plate is connected with the bottom of substrate.
Described substrate is the glass-epoxy material.The width of described substrate is 20mm～25mm, highly is 30mm～35mm.The width of described radiation patch is 20mm～25mm, highly is 20mm～22mm, and the length of corner cut is 5mm～8mm.The depth of groove of described Baltimore groove is 2mm～3mm, and width is 10mm～15mm, and the width of fluting is 0.5mm～1mm.The width of described impedance matching input transmission line is 2mm～3mm, and length is 12mm～15mm.The height of described metal ground plate is 12mm～15mm, and the width of importing transmission line apart from impedance matching is 0.5mm～1mm.
The little belt substrate of the utility model uses the glass-epoxy material, has the low and stable radiation characteristic of cost, and loss is low, and is simple in structure small-sized, is convenient to integrated.
Description of drawings:
Fig. 1 is the structural front view of co-planar waveguide formula double-frequency micro-strip antenna;
Fig. 2 is the insertion loss figure of co-planar waveguide formula double-frequency micro-strip antenna;
Fig. 3 is that co-planar waveguide formula double-frequency micro-strip antenna is at the E of 3.5GHz surface radiation directional diagram;
Fig. 4 is that co-planar waveguide formula double-frequency micro-strip antenna is at the H of 3.5GHz surface radiation directional diagram;
Fig. 5 is that co-planar waveguide formula double-frequency micro-strip antenna is at the E of 5.8GHz surface radiation directional diagram;
Fig. 6 is that co-planar waveguide formula double-frequency micro-strip antenna is at the H of 5.8GHz surface radiation directional diagram;
Embodiment
As shown in Figure 1, co-planar waveguide formula double-frequency micro-strip antenna comprises substrate 1, radiation patch 2, Baltimore groove 3, impedance matching input transmission line 4, metal ground plate 5; The surface of substrate 1 is provided with radiation patch 2, impedance matching input transmission line 4 and metal ground plate 5, radiation patch 2 is provided with Baltimore groove 3, the bottom, center of rectangular radiation patch 2 is connected with impedance matching input transmission line 4 one ends, the other end of impedance matching input transmission line 4 is connected with the bottom of substrate 1, impedance matching input transmission line 4 two ends are provided with metal ground plate 5, and the bottom of metal ground plate 5 is connected 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 30mm～35mm.The width of described radiation patch 2 is 20mm～25mm, highly is 20mm～22mm, and the length of corner cut is 5mm～8mm.The depth of groove of described Baltimore groove 3 is 2mm～3mm, and width is 10mm～15mm, and the width of fluting is 0.5mm～1mm.The width of described impedance matching input transmission line 4 is 2mm～3mm, and length is 12mm～15mm.The height of described metal ground plate 5 is 12mm～15mm, and the width of importing transmission line 4 apart from impedance matching is 0.5mm～1mm.
Co-planar waveguide formula double-frequency micro-strip antenna:
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 35mm.The width of radiation patch is 20mm, highly is 20mm, and the length of corner cut is 7.8mm.The depth of groove of Baltimore groove is 2.5mm, and width is 14mm, and the width of fluting is 0.5mm.The width of impedance matching input transmission line is 2mm, and length is 15mm.The height of metal ground plate is 14.5mm, and the width of importing transmission line apart from impedance matching is 0.5mm.Every performance index of co-planar waveguide formula double-frequency micro-strip antenna adopt CST software to test, and the insertion damage curve of gained as shown in Figure 2.As seen from the figure ,-the following working frequency range of 10dB is 2.6619-3.9969GHz and 4.8565-5.9859GHz.Fig. 3-6 is depicted as co-planar waveguide formula double-frequency micro-strip antenna the E face when 3.5GHz and 5.8GHz and H face directional diagram respectively, as seen from the figure, when frequency is 3.5GHz, gain is 2.6dBi, the half power lobe width is 78.8 °, when frequency was 5.8GHz, gaining was that 4.4dBi, half power lobe width are 63.3 °.
Claims (7)
1. a co-planar waveguide formula double-frequency micro-strip antenna is characterized in that comprising substrate (1), radiation patch (2), Baltimore groove (3), impedance matching input transmission line (4), metal ground plate (5); The surface of substrate (1) is provided with radiation patch (2), impedance matching input transmission line (4) and metal ground plate (5), radiation patch (2) is provided with Baltimore groove (3), the bottom, center of rectangular radiation patch (2) is connected with impedance matching input transmission line (4) one ends, the other end of impedance matching input transmission line (4) is connected with the bottom of substrate (1), impedance matching input transmission line (4) two ends are provided with metal ground plate (5), and the bottom of metal ground plate (5) is connected with the bottom of substrate (1).
2. a kind of co-planar waveguide formula double-frequency micro-strip antenna as claimed in claim 1 is characterized in that described substrate (1) is the glass-epoxy material.
3. a kind of co-planar waveguide formula double-frequency micro-strip antenna as claimed in claim 1, the width that it is characterized in that described substrate (1) is 20mm～25mm, highly is 30mm～35mm.
4. a kind of co-planar waveguide formula double-frequency micro-strip antenna as claimed in claim 1, the width that it is characterized in that described radiation patch (2) is 20mm～25mm, highly is 20mm～22mm, the length of corner cut is 5mm～8mm.
5. a kind of co-planar waveguide formula double-frequency micro-strip antenna as claimed in claim 1, the depth of groove that it is characterized in that described Baltimore groove (3) is 2mm～3mm, and width is 10mm～15mm, and the width of fluting is 0.5mm～1mm.
6. a kind of co-planar waveguide formula double-frequency micro-strip antenna as claimed in claim 1 is characterized in that the width of described impedance matching input transmission line (4) is 2mm～3mm, and length is 12mm～15mm.
7. a kind of co-planar waveguide formula double-frequency micro-strip antenna as claimed in claim 1, the height that it is characterized in that described metal ground plate (5) is 12mm～15mm, is 0.5mm～1mm apart from the width of impedance matching input transmission line (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320048577 CN203134974U (en) | 2013-01-23 | 2013-01-23 | Coplanar waveguide type double-frequency microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320048577 CN203134974U (en) | 2013-01-23 | 2013-01-23 | Coplanar waveguide type double-frequency microstrip antenna |
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| Publication Number | Publication Date |
|---|---|
| CN203134974U true CN203134974U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320048577 Expired - Fee Related CN203134974U (en) | 2013-01-23 | 2013-01-23 | Coplanar waveguide type double-frequency microstrip antenna |
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| CN (1) | CN203134974U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943950A (en) * | 2014-05-08 | 2014-07-23 | 华东交通大学 | Integrated ultra wide band antenna of fusion slot line ultra wide band filter unit |
| CN107453047A (en) * | 2016-05-06 | 2017-12-08 | 通用汽车环球科技运作有限责任公司 | Double frequency-band flexible antennas with segmented surface processing |
-
2013
- 2013-01-23 CN CN 201320048577 patent/CN203134974U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943950A (en) * | 2014-05-08 | 2014-07-23 | 华东交通大学 | Integrated ultra wide band antenna of fusion slot line ultra wide band filter unit |
| CN107453047A (en) * | 2016-05-06 | 2017-12-08 | 通用汽车环球科技运作有限责任公司 | Double frequency-band flexible antennas with segmented surface processing |
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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: 20140123 |