CN202662797U - C type coplanar ultra-wideband microstrip antenna with single band elimination characteristic - Google Patents
C type coplanar ultra-wideband microstrip antenna with single band elimination characteristic Download PDFInfo
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- CN202662797U CN202662797U CN 201220298604 CN201220298604U CN202662797U CN 202662797 U CN202662797 U CN 202662797U CN 201220298604 CN201220298604 CN 201220298604 CN 201220298604 U CN201220298604 U CN 201220298604U CN 202662797 U CN202662797 U CN 202662797U
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Abstract
The utility model discloses a C type coplanar ultra-wideband microstrip antenna with a single band elimination characteristic. The C type coplanar ultra-wideband microstrip antenna comprises a microstrip substrate, a C type radiation patch, a microstrip connecting line, rectangular radiation metal plates and an impedance matching input microstrip line, wherein the upper surface of the microstrip substrate is provided with the C type radiation patch, the microstrip connecting line, the rectangular radiation metal plates and the impedance matching input microstrip line; the microstrip connecting line is arranged in the C type radiation patch; the bottom end of the radiation patch is connected with one end of the impedance matching input microstrip line; the other end of the impedance matching input microstrip line is connected with the bottom end of the microstrip substrate; the rectangular radiation metal plates are arranged at parts which are 0.2-0.3 mm away from the two sides of the impedance matching input microstrip line respectively; and the bottom ends of the rectangular radiation metal plates are connected with the bottom end of the microstrip substrate. The C type coplanar ultra-wideband microstrip antenna has the advantages of stable radiation characteristic, low loss, low cost, simple structure and easiness in manufacturing in a working frequency band.
Description
Technical field
The utility model relates to antenna, relates in particular to a kind of coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic.
Technical background
Wireless communication technology is used to some extent at communication, radar and military aspect.FCC in 2004 with the 3.1-10.6GHz frequency range be applied to civilian after, wireless communication technology is used widely in measuring system and Vehicular radar system.Along with the development of wireless communication technology, ultra-wideband antenna obtains researchers' extensive concern.
In order to increase the impedance bandwidth of antenna, one of the simplest mode is exactly the size that increases whole antenna, but in order to make antenna compact to satisfy system's miniaturization requirement as much as possible.If want the bandwidth of operation of extended antenna in the situation that does not increase size, a kind of practical mode adopts grade formula structure or multistage ladder type structure exactly.By adopting stepped construction to realize the multistage coupling, make whole antenna can obtain comparatively perfectly mate, thereby improve the bandwidth of operation of antenna.Owing to adopted multiple-rank arrangement, prolonged current path, also reducing work frequency simultaneously makes antenna miniaturization.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency that prior art is narrow at the WLAN (wireless local area network) midband, loss is large, a kind of coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic to be provided.
In order to achieve the above object, the technical solution of the utility model is as follows:
The coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic comprises little belt substrate, C type radiation patch, little band connecting line, rectangular radiation metallic plate, impedance matching input microstrip line; Little belt substrate upper surface is provided with C type radiation patch, little band connecting line, rectangular radiation metallic plate and impedance matching input microstrip line, C type radiation patch inside is provided with little band connecting line, the bottom of radiation patch links to each other with impedance matching input microstrip line one end, the impedance matching input microstrip line other end links to each other with the bottom of little belt substrate, be respectively equipped with the rectangular metal radiant panel from impedance matching input microstrip line both sides 0.2mm～0.3mm distance, rectangular metal radiant panel bottom links to each other with little belt substrate bottom.
Described little belt substrate is the FR4 material.The length of described little belt substrate is 21mm～23mm, and wide is 28mm～30mm.The outer radius of described C type radiation patch is 9mm～10mm, and inside radius is 8mm～9mm.Described little width with connecting line is 1.5mm～3mm, and the distance of the bottom of bottom distance C type radiation patch is 7mm～8mm.Described impedance matching input microstrip line adopts feed microstrip line to be connected with C type radiation patch, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line is 1.2mm～2mm.The length of described rectangular radiation metallic plate is 8mm～10mm, and wide is 7mm～9mm.
Have stable radiation characteristic in the utility model working band, loss is low, cost is low, and is simple in structure, be easy to make.
Description of drawings:
Fig. 1 is the structural representation with coplanar ultra-wideband microstrip antenna of C type of single band resistance characteristic;
Fig. 2 is the coplanar ultra-wideband microstrip antenna insertion loss of the C type curve chart with single band resistance characteristic;
Fig. 3 is the antenna pattern of the coplanar ultra-wideband microstrip antenna of C type when 3.5GHz with single band resistance characteristic;
Fig. 4 is the antenna pattern of the coplanar ultra-wideband microstrip antenna of C type when 7.6GHz with single band resistance characteristic;
Fig. 5 is the antenna pattern of the coplanar ultra-wideband microstrip antenna of C type when 10.0GHz with single band resistance characteristic.
Embodiment
The coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic comprises little belt substrate 1, C type radiation patch 2, little band connecting line 3, rectangular radiation metallic plate 4, impedance matching input microstrip line 5; Little belt substrate 1 upper surface is provided with C type radiation patch 2, little band connecting line 3, rectangular radiation metallic plate 4 and impedance matching input microstrip line 5, C type radiation patch 2 inside are provided with little band connecting line 3, the bottom of radiation patch 2 links to each other with impedance matching input microstrip line 5 one ends, impedance matching input microstrip line 5 other ends link to each other with the bottom of little belt substrate 1, be respectively equipped with rectangular metal radiant panel 4 from impedance matching input microstrip line 5 both sides 0.2mm～0.3mm distance, rectangular metal radiant panel 4 bottoms link to each other with little belt substrate 1 bottom.
Described little belt substrate 1 is the FR4 material.The length of described little belt substrate 1 is 21mm～23mm, and wide is 28mm～30mm.The outer radius of described C type radiation patch 2 is 9mm～10mm, and inside radius is 8mm～9mm.Described little width with connecting line 3 is 1.5mm～3mm, and the distance of the bottom of bottom distance C type radiation patch 2 is 7mm～8mm.Described impedance matching input microstrip line 5 adopts feed microstrip line to be connected with C type radiation patch 2, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line 5 is 1.2mm～2mm.The length of described rectangular radiation metallic plate 4 is 8mm～10mm, and wide is 7mm～9mm.
The coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic:
Selecting dielectric constant is that 4.4 FR4 material is made little belt substrate, and thickness is 0.5mm.The length of little belt substrate is 22mm, and wide is 29mm.The outer radius of C type radiation patch is 10mm, and inside radius is 8.5mm.The width of class rectangular radiation patch is 1.5mm, and the distance of the bottom of bottom distance C type radiation patch is 7.75mm.Impedance matching input microstrip line adopts feed microstrip line to be connected with radiation patch, and characteristic impedance is 50 Ω.The width of impedance matching input microstrip line is 1.5mm.The length of rectangular radiation metallic plate is 10mm, and wide is 8mm.The spacing of rectangular radiation metallic plate and impedance matching input microstrip line is 0.25mm.Use software that the radiation characteristics such as the insertion loss curve of the coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic and gain have been carried out simulated measurement, insertion loss curve such as Fig. 2 of the coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic of gained.As seen from Figure 2, in the frequency range of 3.1 ~ 10.6GHz scope, has the stopband of 3.8 ~ 5.9GHz.The coplanar ultra-wideband microstrip antenna of C type that Fig. 3-Figure 5 shows that has single band resistance characteristic is antenna pattern and the antenna pattern when 3.5GHz, 7.6GHz, 10GHz respectively, gain when frequency is 3.5GHz is 2.1dBi, the half power lobe width is 90.1 °, gain when frequency is 7.6 GHz is 2.9dBi, the half power lobe width is 80.9 °, gain when frequency is 10 GHz is 2.2dBi, and the half power lobe width is 69.1 °.
Claims (8)
1. the coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic is characterized in that comprising little belt substrate (1), C type radiation patch (2), little band connecting line (3), rectangular radiation metallic plate (4), impedance matching input microstrip line (5); Little belt substrate (1) upper surface is provided with C type radiation patch (2), little band connecting line (3), rectangular radiation metallic plate (4) and impedance matching input microstrip line (5), C type radiation patch (2) inside is provided with little band connecting line (3), the bottom of radiation patch (2) links to each other with impedance matching input microstrip line (5) one ends, impedance matching input microstrip line (5) other end links to each other with the bottom of little belt substrate (1), be respectively equipped with rectangular metal radiant panel (4) from impedance matching input microstrip line (5) both sides 0.2mm～0.3mm distance, rectangular metal radiant panel (4) bottom links to each other with little belt substrate (1) bottom.
2. a kind of coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic as claimed in claim 1 is characterized in that described little belt substrate (1) is the FR4 material.
3. a kind of coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic as claimed in claim 1, the length that it is characterized in that described little belt substrate (1) is 21mm～23mm, wide is 28mm～30mm.
4. a kind of coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic as claimed in claim 1, the outer radius that it is characterized in that described C type radiation patch (2) is 9mm～10mm, inside radius is 8mm～9mm.
5. a kind of coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic as claimed in claim 1, the width that it is characterized in that described little band connecting line (3) is 1.5mm～3mm, the distance of the bottom of bottom distance C type radiation patch (2) is 7mm～8mm.
6. a kind of coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic as claimed in claim 1 is characterized in that described impedance matching input microstrip line (5) and C type radiation patch (2) adopt feed microstrip line to be connected, and characteristic impedance is 50 Ω.
7. a kind of coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic as claimed in claim 1 is characterized in that the width of described impedance matching input microstrip line (5) is 1.2mm～2mm.
8. a kind of coplanar ultra-wideband microstrip antenna of C type with single band resistance characteristic as claimed in claim 1, the length that it is characterized in that described rectangular radiation metallic plate (4) is 8mm～10mm, wide is 7mm～9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298604 CN202662797U (en) | 2012-06-25 | 2012-06-25 | C type coplanar ultra-wideband microstrip antenna with single band elimination characteristic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298604 CN202662797U (en) | 2012-06-25 | 2012-06-25 | C type coplanar ultra-wideband microstrip antenna with single band elimination characteristic |
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| Publication Number | Publication Date |
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| CN202662797U true CN202662797U (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220298604 Expired - Fee Related CN202662797U (en) | 2012-06-25 | 2012-06-25 | C type coplanar ultra-wideband microstrip antenna with single band elimination characteristic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816701A (en) * | 2017-01-16 | 2017-06-09 | 西安电子科技大学 | Double frequency round polarized microstrip antenna |
-
2012
- 2012-06-25 CN CN 201220298604 patent/CN202662797U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816701A (en) * | 2017-01-16 | 2017-06-09 | 西安电子科技大学 | Double frequency round polarized microstrip 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: 20130109 Termination date: 20130625 |