CN203398274U - A symmetric L-shaped coplanar microstrip antenna - Google Patents
A symmetric L-shaped coplanar microstrip antenna Download PDFInfo
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- CN203398274U CN203398274U CN201320520070.0U CN201320520070U CN203398274U CN 203398274 U CN203398274 U CN 203398274U CN 201320520070 U CN201320520070 U CN 201320520070U CN 203398274 U CN203398274 U CN 203398274U
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- ground plate
- transmission line
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- metal ground
- input transmission
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Abstract
The utility model discloses a symmetric L-shaped coplanar microstrip antenna comprising a substrate, a rectangular radiation paster, an impedance match input transmission line, a left-side rectangular metallic grounding board, and a right-side rectangular metallic grounding board. The rectangular radiation paster, the impedance match input transmission line, the left-side rectangular metallic grounding board, and the right-side rectangular metallic grounding board are disposed on the top surface of the substrate. Square grooves are disposed on the top left corner and the top right corner of the rectangular radiation paster. A rectangular groove is disposed on the center of the rectangular radiation paster and close to the top of the rectangular radiation paster. The left-side rectangular metallic grounding board and the right-side rectangular metallic grounding board are disposed at the two sides of the impedance match input transmission line symmetrically. One end of the impedance match input transmission line is connected with the rectangular radiation paster, while the other end of the impedance match input transmission line is connected with the bottom of the substrate. The bottom of the left-side rectangular metallic grounding board and the bottom of the right-side rectangular metallic grounding board are both connected with the bottom of the substrate. The symmetric L-shaped coplanar microstrip antenna has advantages of a good radiation characteristic, low loss, a wide frequency band range, simple structure, light weight, a small size, easy production, and easy integration.
Description
Technical field
The utility model relates to antenna, relates in particular to the coplanar formula microstrip antenna of a kind of symmetrical L-type.
Background technology
Nowadays, entire society is more and more higher to the requirement of radio communication, and this requirement is not only embodied in communication quality, be also to require the bandwidth of communication equipment broaden with and profile diminish.Antenna is the important component part of communication equipment, and the size of antenna has a significant impact the size of communication equipment, so the bandwidth of antenna is broadened and size decreases just seems particularly important.The implementation of transmission of wireless signals is electromagnetic wave, so the transmitting receiving course of general wireless signal is as follows: gave transmitting antenna by transmitter radio signal transmission before this, the carrier of this transmission is cable, then transmitting antenna these radiofrequency signals with electromagenetic wave radiation in space.A certain pointing out or a certain scope place in space, if there is reception antenna, will receive the electromagnetic wave that is delivered to this point or this scope so, and then reception antenna can pass to receiver by the signal receiving, and carrier is also cable certainly.Therefore, the effect in wireless transmitting and receiving course of antenna is particularly evident.
The classification of new antenna has a lot, and certainly microstrip antenna is also wherein a kind of, just has relevant theory as far back as 1953, but may consider do not have practice to be worth, and does not have people to pay close attention to.Until twentieth century stage casing, the people of concern is many a little a bit, the twentieth century middle and later periods is its gold period, because become more and more for its research etc.Nowadays, microstrip antenna has been widely used in radio communication, satellite communication, radar, radio altimeter, command and control system, portable set, environment measurement instrument and remote sensing etc. field.So research miniaturization, low-loss, it is significant that high-quality microstrip antenna more seems.
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 symmetrical L-type coplanar formula microstrip antenna.
In order to achieve the above object, the technical solution of the utility model is as follows:
The coplanar band antenna that declines of symmetrical L-type comprises substrate, rectangular radiation patch, impedance matching input transmission line, left side rectangular metal ground plate, right side rectangular metal ground plate; The upper surface of substrate is provided with rectangular radiation patch, impedance matching input transmission line, left side rectangular metal ground plate, right side rectangular metal ground plate; On the upper left corner of rectangular radiation patch and the upper right corner, be respectively equipped with square fluting, the middle upper position of rectangular radiation patch is provided with rectangle fluting; Left side rectangular metal ground plate and right side rectangular metal ground plate are symmetrically distributed in the both sides of impedance matching input transmission line; One end of impedance matching input transmission line is connected with rectangular radiation patch, and the impedance matching input other end of transmission line and the bottom of substrate are connected, and the bottom of left side rectangular metal ground plate and right side rectangular metal ground plate is all 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 described rectangular radiation patch is 32mm～33mm, and wide is 18mm～19mm.The length of described impedance matching input transmission line is 13mm～14mm, and wide is 4mm～5mm.Described left side rectangular metal ground plate is identical with the dimensional parameters of right side rectangular metal ground plate, and length is 16.5mm～17mm, and wide is 11.5mm～12mm.The spacing distance of described left side rectangular metal ground plate and right side rectangular metal ground plate and impedance matching input transmission line is 1mm～1.5mm.The length of side of described square fluting is 8mm～9mm.The length of described rectangle fluting is 14mm～15mm, and wide is 4mm～5mm, and rectangle fluting is 4mm～5mm apart from the spacing of rectangular radiation patch.
The utlity model has radiation characteristic good, loss is low, and frequency band range is wide, simple in structure, and quality is light, and volume is little, is easy to make, and is convenient to the advantages such as integrated.
Accompanying drawing explanation:
Fig. 1 is the structural representation of the coplanar formula microstrip antenna of symmetrical L-type;
Fig. 2 is the loss figure of the coplanar formula microstrip antenna of symmetrical L-type;
Fig. 3 is the E surface radiation directional diagram of the coplanar formula microstrip antenna of symmetrical L-type when 8.72GHz;
Fig. 4 is the H surface radiation directional diagram of the coplanar formula microstrip antenna of symmetrical L-type when 8.72GHz.
Embodiment
As shown in Figure 1, the coplanar band antenna that declines of symmetrical L-type comprises substrate 1, rectangular radiation patch 2, impedance matching input transmission line 3, left side rectangular metal ground plate 4, right side rectangular metal ground plate 5; The upper surface of substrate 1 is provided with rectangular radiation patch 2, impedance matching input transmission line 3, left side rectangular metal ground plate 4, right side rectangular metal ground plate 5; On the upper left corner of rectangular radiation patch 2 and the upper right corner, be respectively equipped with square fluting 6, the middle upper position of rectangular radiation patch 2 is provided with rectangle fluting 7; Left side rectangular metal ground plate 4 and right side rectangular metal ground plate 5 are symmetrically distributed in the both sides of impedance matching input transmission line 3; One end of impedance matching input transmission line 3 is connected with rectangular radiation patch 2, and the other end of impedance matching input transmission line 3 is connected with the bottom of substrate 1, and the bottom of left side rectangular metal ground plate 4 and right side rectangular metal ground plate 5 is all 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 described rectangular radiation patch 2 is 32mm～33mm, and wide is 18mm～19mm.The length of described impedance matching input transmission line 3 is 13mm～14mm, and wide is 4mm～5mm.Described left side rectangular metal ground plate 4 is identical with the dimensional parameters of right side rectangular metal ground plate 5, and length is 16.5mm～17mm, and wide is 11.5mm～12mm.Described left side rectangular metal ground plate 4 and right side rectangular metal ground plate 5 are 1mm～1.5mm with the spacing distance of impedance matching input transmission line 3.The length of side of described square fluting 6 is 8mm～9mm.The length of described rectangle fluting 7 is 14mm～15mm, and wide is 4mm～5mm, and rectangle fluting 7 spacing apart from rectangular radiation patch 2 are 4mm～5mm.
The coplanar formula microstrip antenna of symmetrical L-type:
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, and wide is 40mm.The length of rectangular radiation patch is 32mm, and wide is 18mm.The length of impedance matching input transmission line is 13mm, and wide is 4mm.Left side rectangular metal ground plate is identical with the dimensional parameters of right side rectangular metal ground plate, and length is 16.5mm, and wide is 11.5mm.The spacing distance of left side rectangular metal ground plate and right side rectangular metal ground plate and impedance matching input transmission line is 1.5mm.The length of side of square fluting is 8mm.The length of rectangle fluting is 14mm, and wide is 4mm, and rectangle fluting is 4mm apart from the spacing of rectangular radiation patch.The property indices of the coplanar formula microstrip antenna of symmetrical L-type adopts CST software to test, and the damage curve of gained as shown in Figure 2.As seen from the figure ,-working frequency range below 10dB is 7.6GHz～9.7GHz.Figure 3 shows that the E face directional diagram of the coplanar formula microstrip antenna of symmetrical L-type when 8.72GHz, Figure 4 shows that the H face directional diagram of the coplanar formula microstrip antenna of symmetrical L-type when 8.72GHz, as seen from the figure, when frequency is 8.72GHz, gain is 4.6dBi, and half power lobe width is 110.1 °.
Claims (8)
1. the coplanar formula microstrip antenna of symmetrical L-type, is characterized in that comprising substrate (1), rectangular radiation patch (2), impedance matching input transmission line (3), left side rectangular metal ground plate (4), right side rectangular metal ground plate (5); The upper surface of substrate (1) is provided with rectangular radiation patch (2), impedance matching input transmission line (3), left side rectangular metal ground plate (4), right side rectangular metal ground plate (5); On the upper left corner of rectangular radiation patch (2) and the upper right corner, be respectively equipped with square fluting (6), the middle upper position of rectangular radiation patch (2) is provided with rectangle fluting (7); Left side rectangular metal ground plate (4) and right side rectangular metal ground plate (5) are symmetrically distributed in the both sides of impedance matching input transmission line (3); One end of impedance matching input transmission line (3) is connected with rectangular radiation patch (2), the other end of impedance matching input transmission line (3) is connected with the bottom of substrate (1), and the bottom of left side rectangular metal ground plate (4) and right side rectangular metal ground plate (5) is all connected with the bottom of substrate (1).
2. the coplanar formula microstrip antenna of a kind of symmetrical L-type 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 coplanar formula microstrip antenna of a kind of symmetrical L-type as claimed in claim 1, is characterized in that the length of described rectangular radiation patch (2) is 32mm～33mm, and wide is 18mm～19mm.
4. the coplanar formula microstrip antenna of a kind of symmetrical L-type as claimed in claim 1, is characterized in that the length of described impedance matching input transmission line (3) is 13mm～14mm, and wide is 4mm～5mm.
5. the coplanar formula microstrip antenna of a kind of symmetrical L-type as claimed in claim 1, it is characterized in that described left side rectangular metal ground plate (4) is identical with the dimensional parameters of right side rectangular metal ground plate (5), length is 16.5mm～17mm, and wide is 11.5mm～12mm.
6. the coplanar formula microstrip antenna of a kind of symmetrical L-type as claimed in claim 1, is characterized in that described left side rectangular metal ground plate (4) and right side rectangular metal ground plate (5) and the spacing distance of impedance matching input transmission line (3) are 1mm～1.5mm.
7. the coplanar formula microstrip antenna of a kind of symmetrical L-type as claimed in claim 1, is characterized in that the length of side of described square fluting (6) is 8mm～9mm.
8. the coplanar formula microstrip antenna of a kind of symmetrical L-type as claimed in claim 1, the length that it is characterized in that described rectangle fluting (7) is 14mm～15mm, wide is 4mm～5mm, and rectangle fluting (7) is 4mm～5mm apart from the spacing of rectangular radiation patch (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520070.0U CN203398274U (en) | 2013-08-22 | 2013-08-22 | A symmetric L-shaped coplanar microstrip antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520070.0U CN203398274U (en) | 2013-08-22 | 2013-08-22 | A symmetric L-shaped coplanar microstrip antenna |
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| CN203398274U true CN203398274U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320520070.0U Expired - Fee Related CN203398274U (en) | 2013-08-22 | 2013-08-22 | A symmetric L-shaped coplanar microstrip antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768924A (en) * | 2020-12-31 | 2021-05-07 | 厦门大学 | Gradual change multistage rectangular close-packed frequency-broadening quasi-self-compensating antenna |
-
2013
- 2013-08-22 CN CN201320520070.0U patent/CN203398274U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768924A (en) * | 2020-12-31 | 2021-05-07 | 厦门大学 | Gradual change multistage rectangular close-packed frequency-broadening quasi-self-compensating antenna |
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| 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: 20140115 Termination date: 20140822 |
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| EXPY | Termination of patent right or utility model |