CN202585741U - Y-shaped ultra wideband microstrip antenna - Google Patents
Y-shaped ultra wideband microstrip antenna Download PDFInfo
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- CN202585741U CN202585741U CN2012202524525U CN201220252452U CN202585741U CN 202585741 U CN202585741 U CN 202585741U CN 2012202524525 U CN2012202524525 U CN 2012202524525U CN 201220252452 U CN201220252452 U CN 201220252452U CN 202585741 U CN202585741 U CN 202585741U
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- microstrip antenna
- microstrip
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Abstract
The utility model discloses a Y-shaped ultra wideband microstrip antenna. The Y-shaped ultra wideband microstrip antenna comprises a microstrip substrate, a half-moon-shaped radiation patch, an impedance matching input microstrip wire and a trapezoid groove metal earth plate; the half-moon-shaped radiation patch and the impedance matching input microstrip wire are arranged on the upper surface of the microstrip substrate; the bottom end of the half-moon-shaped radiation patch is connected with one end of the impedance matching input microstrip wire; the other end of the impedance matching input microstrip wire is connected with the bottom end of the microstrip substrate; the trapezoid groove metal earth plate is arranged on the lower surface of the microstrip substrate; and the bottom end of the trapezoid groove metal earth plate is connected with the bottom end of the microstrip substrate. The Y-shaped ultra wideband microstrip antenna has the stable radiation characteristic, low loss and low cost in the working band, has simple structure and is easy to manufacture.
Description
Technical field
The utility model relates to antenna, relates in particular to a kind of Y type ultra-wideband microstrip antenna.
Technical background
Wireless communication technology is used at communication, radar and military aspect to some extent.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 continuous development of wireless communication technology, ultra-wideband antenna obtains researchers' extensive concern.
In order to increase the impedance bandwidth of antenna, the most simply one of mode is exactly the size that increases entire antenna, but in order to make antenna compact as much as possible to satisfy system's miniaturization requirement.If want the bandwidth of operation of extended antenna under the situation that does not increase size, a kind of practical mode adopts grade formula structure or multistage ladder type structure exactly.Through adopting stepped construction to realize the multistage coupling, make entire antenna can obtain comparatively perfectly mate, thereby improve the bandwidth of operation of antenna.Owing to adopted multiple-rank arrangement, prolonged current path, also can reduce frequency simultaneously, make antenna miniaturization.
Summary of the invention
The utility model provides a kind of Y type ultra-wideband microstrip antenna in order to overcome the deficiency that prior art is narrow at the WLAN midband, loss is big.
In order to achieve the above object, the technical scheme of the utility model is following:
Y type ultra-wideband microstrip antenna comprises little belt substrate, semilune radiation patch, impedance matching input microstrip line and trapezoidal groove metal ground plate; Little belt substrate upper surface is provided with semilune radiation patch and impedance matching input microstrip line, and the bottom of semilune radiation patch links to each other with impedance matching input microstrip line one end, and the other end of impedance matching input microstrip line links to each other with the bottom of little belt substrate; Little belt substrate lower surface is provided with the trapezoidal groove metal ground plate, and the bottom of trapezoidal groove metal ground plate links to each other with the bottom of little belt substrate.
Described little belt substrate is the FR4 material.The length of described little belt substrate is 23mm～25mm, and wide is 24mm～26mm.The wide of described semilune radiation patch is 13mm～15mm.Described impedance matching input microstrip line adopts feed microstrip line to be connected with the semilune radiation patch, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line is 3mm～4mm.The upper base of described trapezoidal groove metal ground plate is long to be 10mm～12mm, the long 22mm～23mm that is that goes to the bottom, and height is 9mm～10mm.The groove of described trapezoidal groove metal ground plate is long to be 3mm～4mm, and groove is wide to be 1.8mm～2mm.
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 positive structure chart of Y type ultra-wideband microstrip antenna;
Fig. 2 is the structure chart at the Y type ultra-wideband microstrip antenna back side;
Fig. 3 is that Y type ultra-wideband microstrip antenna inserts damage curve figure;
Fig. 4 is the antenna pattern of Y type ultra-wideband microstrip antenna when 3.8GHz;
Fig. 5 is the antenna pattern of Y type ultra-wideband microstrip antenna when 5.8GHz;
Fig. 6 is the antenna pattern of Y type ultra-wideband microstrip antenna when 11GHz.
Embodiment
Y type ultra-wideband microstrip antenna comprises little belt substrate 1, semilune radiation patch 2, impedance matching input microstrip line 3 and trapezoidal groove metal ground plate 4; Little belt substrate 1 upper surface is provided with semilune radiation patch 2 and impedance matching input microstrip line 3, and the bottom of semilune radiation patch 2 links to each other with impedance matching input microstrip line 3 one ends, and the other end of impedance matching input microstrip line 3 links to each other with the bottom of little belt substrate 1; Little belt substrate 1 lower surface is provided with trapezoidal groove metal ground plate 4, and the bottom of trapezoidal groove metal ground plate 4 links to each other with the bottom of little belt substrate 1.
Described little belt substrate 1 is the FR4 material.1 length of described little belt substrate is 23mm～25mm, and wide is 24mm～26mm.The wide of described semilune radiation patch 2 is 13mm～15mm.Described impedance matching input microstrip line 3 adopts feed microstrip line to be connected with semilune radiation patch 2, and characteristic impedance is 50 Ω.The width of described impedance matching input microstrip line 3 is 3mm～4mm.The upper base of described trapezoidal groove metal ground plate 4 is long to be 10mm～12mm, the long 22mm～23mm that is that goes to the bottom, and height is 9mm～10mm.The groove of described trapezoidal groove metal ground plate 4 is long to be 3mm～4mm, and groove is wide to be 1.8mm～2mm.
Y type ultra-wideband microstrip antenna:
The selection dielectric constant is 4.4 the little belt substrate of FR4 material, and thickness is 1.6 mm.The length of little belt substrate is 24mm, and wide is 25mm.The semilune radiation patch is wide to be 14mm.Impedance matching input microstrip line adopts feed microstrip line to be connected with the semilune radiation patch, and characteristic impedance is 50 Ω.The width of impedance matching input microstrip line is 3mm.The upper base of trapezoidal groove metal ground plate is long to be 12mm, the long 22mm that is that goes to the bottom, and height is 10mm.The groove of trapezoidal groove metal ground plate 4 is long to be 4mm, and groove is wide to be 1.8mm.Utilization software has carried out insertion damage curve such as Fig. 3 of the Y type ultra-wideband microstrip antenna of simulated measurement gained to radiation characteristics such as the insertion damage curve of Y type ultra-wideband microstrip antenna and gains.Visible by Fig. 3,3.59 ~ 14.15GHz scope in the insertion loss less than-10dB, whole frequency range that fully can covering ultra wideband.Fig. 4-shown in Figure 6 is Y type ultra-wideband microstrip antenna antenna pattern and the antenna pattern when 3GHz, 5.8GHz, 11 GHz respectively; Gain when frequency is 3GHz is 2.5dBi; The half power lobe width is 86.1 °, is that 5.8 o'clock gain is 3.4dBi in frequency, and the half power lobe width is 84.7 °; Gain when frequency is 11GHz is 2.8dBi, and the half power lobe width is 50.7 °.
Claims (8)
1. a Y type ultra-wideband microstrip antenna is characterized in that comprising little belt substrate (1), semilune radiation patch (2), impedance matching input microstrip line (3) and trapezoidal groove metal ground plate (4); Little belt substrate (1) upper surface is provided with semilune radiation patch (2) and impedance matching input microstrip line (3); The bottom of semilune radiation patch (2) links to each other with impedance matching input microstrip line (3) one ends, and the other end of impedance matching input microstrip line (3) links to each other with the bottom of little belt substrate (1); Little belt substrate (1) lower surface is provided with trapezoidal groove metal ground plate (4), and the bottom of trapezoidal groove metal ground plate (4) links to each other with the bottom of little belt substrate (1).
2. a kind of Y type ultra-wideband microstrip antenna as claimed in claim 1 is characterized in that described little belt substrate (1) is the FR4 material.
3. a kind of Y type ultra-wideband microstrip antenna as claimed in claim 1, the length that it is characterized in that described little belt substrate (1) is 23mm～25mm, wide is 24mm～26mm.
4. a kind of Y type ultra-wideband microstrip antenna as claimed in claim 1, what it is characterized in that described semilune radiation patch (2) widely is 13mm～15mm.
5. a kind of Y type ultra-wideband microstrip antenna as claimed in claim 1 is characterized in that described impedance matching input microstrip line (3) and semilune radiation patch (2) adopt feed microstrip line to be connected, and characteristic impedance is 50 Ω.
6. a kind of Y type ultra-wideband microstrip antenna as claimed in claim 1 is characterized in that the width of described impedance matching input microstrip line (3) is 3mm～4mm.
7. a kind of Y type ultra-wideband microstrip antenna as claimed in claim 1 is characterized in that the upper base length of described trapezoidal groove metal ground plate (4) is 10mm～12mm, the long 22mm～23mm that is that goes to the bottom, and height is 9mm～10mm.
8. a kind of Y type ultra-wideband microstrip antenna as claimed in claim 1 is characterized in that the groove length of described trapezoidal groove metal ground plate (4) is 3mm～4mm, and groove is wide to be 1.8mm～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202524525U CN202585741U (en) | 2012-05-31 | 2012-05-31 | Y-shaped ultra wideband microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202524525U CN202585741U (en) | 2012-05-31 | 2012-05-31 | Y-shaped ultra wideband microstrip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202585741U true CN202585741U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202524525U Expired - Fee Related CN202585741U (en) | 2012-05-31 | 2012-05-31 | Y-shaped ultra wideband microstrip antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934703A (en) * | 2015-06-29 | 2015-09-23 | 天津大学 | Ultra-broadband antenna capable of shielding various narrowband signal interferences |
| CN108258408A (en) * | 2018-02-11 | 2018-07-06 | 上海健康医学院 | A kind of antenna for communication |
| CN110190396A (en) * | 2019-06-10 | 2019-08-30 | 天津大学 | A kind of new-type groove type super wide band microstrip slot antenna |
-
2012
- 2012-05-31 CN CN2012202524525U patent/CN202585741U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934703A (en) * | 2015-06-29 | 2015-09-23 | 天津大学 | Ultra-broadband antenna capable of shielding various narrowband signal interferences |
| CN108258408A (en) * | 2018-02-11 | 2018-07-06 | 上海健康医学院 | A kind of antenna for communication |
| CN110190396A (en) * | 2019-06-10 | 2019-08-30 | 天津大学 | A kind of new-type groove type super wide band microstrip slot antenna |
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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: 20121205 Termination date: 20130531 |