CN106549220A - Ultra-wideband antenna with double trap features - Google Patents
Ultra-wideband antenna with double trap features Download PDFInfo
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- CN106549220A CN106549220A CN201510609197.3A CN201510609197A CN106549220A CN 106549220 A CN106549220 A CN 106549220A CN 201510609197 A CN201510609197 A CN 201510609197A CN 106549220 A CN106549220 A CN 106549220A
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- 238000005516 engineering process Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
Stable performance in a kind of wide aerial band, high gain, band limits is provided and is easy to the integrated ultra-wideband antenna with double trap features.Including medium substrate, the lower surface of the medium substrate is provided with earth plate, the microstrip-fed line that the upper surface of the medium substrate is provided with radiating element and is connected with radiating element, the radiating element includes the first S-shaped line of rabbet joint, the microstrip-fed line includes the second inverted U-shaped line of rabbet joint and distributing point, the each several part is arranged into axial symmetry along the ordinate centrage of medium substrate, the center frequency point of trap can be changed by the length for adjusting each line of rabbet joint, and another trap frequency is substantially unaffected when one of change adjustment, so this antenna trap function is relatively stable, the function of wave filter is instead of effectively, in addition this antenna size is less, it is easy to integrated.
Description
Technical field
The present invention relates to radio communication uses antenna technical field, more particularly to a kind of aerial band is wide, in high gain, band limits stable performance be easy to the integrated ultra-wideband antenna with double trap features.
Background technology
Wireless communication system is widely used to every field in recent years, when people enjoy a variety of facilities and the enjoyment that Modern wireless communication is brought to the full, available frequency spectrum resource but be becoming tight by day, original radio spectrum becomes very crowded, people need a kind of new technique to open up a piece of new world, ultra broadband for radio communication（Ultra-Wideband, UWB）Technology has the potentiality for solving this problem just.The Technology of Ultra has that simple structure, message transmission rate are high, low in energy consumption, security performance is high, multi-path resolved ability is strong etc. a little.The most important link of super-broadband tech is exactly the design of ultra-wideband antenna, can design meet requirement of engineering antenna be realize the technology core be located.Ultra-wideband antenna structure and processing technology are relatively easy, input cost is low, excellent performance, its many merits become Chinese scholars research and the favorite for discussing, used as a kind of science and technology with broad prospect of application, its research is that very have far-reaching significance.
But in broadband, there are some occupied frequency ranges, such as microwave interconnecting net（WiMAX3.35-3.75GHz）With WLAN WLAN（5.15-5.85GHz）, in order to exclude these frequency ranges, the trap feature of antenna becomes the focus of people's research.Therefore the ultra-wideband antenna for requiring is met it is important that designing, and satisfaction mentioned here requires just to refer to that the performance indications such as bandwidth, the gain of antenna should meet the standard of ultra-wideband antenna, and also require which has preferable stability in frequency band range.When design meets the ultra-wideband antenna for requiring, maximum problem is exactly should to make the bandwidth of antenna as far as possible big, make which have higher gain again.
The content of the invention
It is an object of the invention to overcome the problems of the prior art, there is provided a kind of antenna broadband is big, high gain, band limits internal stability are easy to well the integrated ultra-wideband antenna with double trap features.
To realize above-mentioned technical problem, the present invention is employed the following technical solutions：
Ultra-wideband antenna with double trap features, it is characterized in that, including medium substrate, the lower surface of the medium substrate is provided with earth plate, the microstrip-fed line that the upper surface of the medium substrate is provided with radiating element and is connected with radiating element, the radiating element includes the first S-shaped line of rabbet joint, and the microstrip-fed line includes the first inverted U-shaped line of rabbet joint and distributing point, and each several part is arranged into axial symmetry along the ordinate centrage of medium substrate.
It is further that the first S-shaped line of rabbet joint includes the first revers turn part, the second revers turn part, the 4th revers turn part of the 3rd revers turn part and the 5th revers turn part, its trap frequency is 3.35GHz-3.75GHz, the first S-shaped line of rabbet joint has four knuckles.
It is further that the first revers turn part is vertical with the second revers turn part, the second revers turn part is vertical with the 3rd revers turn part, and the 3rd revers turn part is vertical with the 4th revers turn part, and the 4th revers turn part is vertical with the 5th revers turn part, i.e. the inflection angle of the first S-shaped line of rabbet joint is 90 degree.
The first S-shaped line of rabbet joint width 116 is 0.3mm, first revers turn part length is 8mm, the second revers turn part length is 9mm, the 3rd revers turn part length is 8mm, the 4th revers turn part length is 9mm and the 5th revers turn part length is 8mm, and the first S-shaped line of rabbet joint is 14mm away from medium substrate distance from bottom.
It is further, the ultra-wideband antenna with double trap features, it is characterised in that the inverted U-shaped line of rabbet joint includes the 6th revers turn part, the 7th revers turn part and the 8th revers turn part that its trap frequency is 5.15GHz-5.85GHz, and the first inverted U-shaped line of rabbet joint has two knuckles.
6th revers turn part is vertical with the 7th revers turn part, and the 7th revers turn part and the 8th revers turn part are vertical, i.e., the inflection angle of the first inverted U-shaped line of rabbet joint is 90 degree.
It is further that the first inverted U-channel wire casing line width is 0.3mm, the 6th revers turn part length is 6mm, the 7th revers turn part length is 2mm, the 8th revers turn part length is 6mm, and the first inverted U-channel line-spacing medium substrate distance from bottom is 10mm.
It is further, the described ultra-wideband antenna with double trap features, it is characterised in that the microstrip-fed line being connected with radiating element is rectangular configuration, and microstrip-fed line length is 11.5mm, a width of 3mm.
It is further, the described ultra-wideband antenna with double trap features, it is characterised in that the earth plate top edge mid portion adopts arc-shaped structure.
It is further, the described ultra-wideband antenna with double trap features, it is characterized in that, ultra-wideband antenna with double trap features is square, ultra-wideband antenna side length with double trap features is 30mm, the radiating element of medium substrate upper surface is that the circle with length 18mm as radius is covered on medium substrate with medium substrate top midpoint as the center of circle.
It is further, the described ultra-wideband antenna with double trap features, it is characterised in that frequency range covers the ultra wideband frequency of the 3.1GHz-10.6GHz in addition to 3.35GHz-3.75GHz, 5.15GHz-5.85GHz, two trap frequencies.
The beneficial effects of the present invention is：By using ultra-wideband antenna of the slot line structure design with double trap features, the reason for slot line structure produces trap can be according to transmission line principle equivalent analysis, the line structure more than quarter-wave length groove is added in antennas, during so that antenna working in respective frequencies, short-circuit minor matters it is equivalent to during antenna loop be in open-circuit condition, larger reflection coefficient is formed, and trap is formed at the frequency range.The antenna of this pair of trap feature each adds the quarter-wave line of rabbet joint of correspondence frequency in 3.5Ghz and 5.5Ghz frequencies, and the center frequency point of trap can be changed by the length for adjusting each line of rabbet joint, and other trap frequencies are substantially unaffected when one of change adjustment, so this antenna trap function is relatively stable, the function of wave filter is instead of effectively, in addition this antenna size is less, is easy to integrated.
Description of the drawings
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, accompanying drawing to be used needed for describing to embodiment below is briefly described, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.Wherein：
Fig. 1 is the front view of the ultra-wideband antenna that the present invention has double trap features；
Fig. 2 is the scale diagrams of the ultra-wideband antenna that the present invention has double trap features；
Fig. 3 is the rearview of the ultra-wideband antenna that the present invention has double trap features；
Fig. 4 is the upward view of the ultra-wideband antenna that the present invention has double trap features；
Structure tag in figure：Medium substrate 1, radiating element 2, earth plate 3, microstrip-fed line 4, distributing point 5.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment obtained under the premise of performing creative labour is not made by those of ordinary skill in the art belongs to the scope of protection of the invention.
Refer to shown in Fig. 1,3,4, this has the ultra-wideband antenna of double trap features, it is characterized in that, including medium substrate 1, the lower surface of the medium substrate 1 is provided with earth plate 3, and the microstrip-fed line 4 that the upper surface of the medium substrate 1 is provided with radiating element 2 and is connected with radiating element 2, the radiating element bag 2 contain the first S-shaped line of rabbet joint 11, the microstrip-fed line 4 includes the first inverted U-shaped line of rabbet joint 12 and distributing point 5, and each several part is arranged into axial symmetry along the ordinate centrage of medium substrate 1.
It is shown in Figure 2, the first S-shaped line of rabbet joint 11 includes the first revers turn part 111, the second revers turn part 112, the 3rd revers turn part 113, the 4th revers turn part 114 and the 5th revers turn part 115, the first S-shaped line of rabbet joint 11 is 116 away from 1 distance from bottom of medium substrate, its trap frequency is 3.35GHz-3.75GHz, and the first S-shaped line of rabbet joint 11 has four knuckles.First revers turn part 111 is vertical with the second revers turn part 112, second revers turn part 112 and the 3rd revers turn part 113 are vertical, 3rd revers turn part 113 is vertical with the 4th revers turn part 114, and the 4th revers turn part 114 and the 5th revers turn part 115 are vertical, i.e. the inflection angle of the first S-shaped line of rabbet joint 11 is 90 degree.
Preferably, the first S-shaped line of rabbet joint line of rabbet joint, 11 width 116 is 0.3mm, first revers turn part, 111 length is 8mm, 112 length of the second revers turn part is 9mm, 113 length of the 3rd revers turn part is 8mm, 114 length of the 4th revers turn part is 9mm and 115 length of the 5th revers turn part is 8mm, and the first S-shaped line of rabbet joint 11 is 14mm away from 1 distance from bottom of medium substrate.
The inverted U-shaped line of rabbet joint 12 includes the 6th revers turn part 121, the 7th revers turn part 122 and the 8th revers turn part 123, and its trap frequency is 5.15GHz-5.85GHz, and the first inverted U-shaped line of rabbet joint 12 has two knuckles.6th revers turn part 121 is vertical with the 7th revers turn part 122, and the 7th revers turn part 122 and the 8th revers turn part 123 are vertical, i.e., the inflection angle of the first inverted U-shaped line of rabbet joint 12 is 90 degree.
Preferably, the first inverted U-shaped line of rabbet joint, 12 line of rabbet joint width 124 is 0.3mm, and the 6th revers turn part length 121 is 6mm, 122 length of the 7th revers turn part is 2mm, 123 length of the 8th revers turn part is 6mm, and the first inverted U-shaped line of rabbet joint 12 is 10mm away from 1 distance from bottom of medium substrate.
The described ultra-wideband antenna with double trap features, it is characterised in that the microstrip-fed line being connected with radiating element is rectangular configuration, and microstrip-fed line length is 11.5mm, a width of 3mm.
The described ultra-wideband antenna with double trap features, it is characterised in that the earth plate 3 covers copper part positioned at 1 lower surface of medium substrate, symmetrical with longitudinal centre line.The earth plate 3 includes the first broken line 311, the second broken line 312, third fold line 313, the 4th camber line 314, the 5th broken line 315, the 6th broken line 316, and earth plate 3 includes 6 knuckles altogether.First broken line 311 and the second broken line 312 are vertical, and the second broken line 312 and third fold line 313 are vertical, and the 5th broken line 315 and the 6th broken line 316 are vertical, and the 6th broken line 316 and the first broken line 311 are vertical, i.e. the inflection angle of earth plate 3 is 90 degree.
Preferably, the length that the length of 3 first broken line 311 of earth plate is 30mm, the length of the second broken line 312 is 12mm, the length of third fold line 313 is 10.7mm, the length of the 4th camber line 314 is 8.6mm, the 5th broken line 315 is 12mm for the length of 10.7mm and the 6th broken line 316.
Wherein, ultra-wideband antenna with double trap features is square, ultra-wideband antenna length of side L length with double trap features is 30mm, and the radiating element 2 of 1 upper surface of medium substrate is, with 1 top midpoint of medium substrate as the center of circle, to be covered on medium substrate 1 by the circle of radius R of length 18mm.
The ultra-wideband antenna with double trap features is designed by using slot line structure, the reason for slot line structure produces trap can be according to transmission line principle equivalent analysis, the line structure more than quarter-wave length groove is added in antennas, during so that antenna working in respective frequencies, short-circuit minor matters it is equivalent to during antenna loop be in open-circuit condition, larger reflection coefficient is formed, and trap is formed at the frequency range.The antenna of this pair of trap feature each adds the quarter-wave line of rabbet joint of correspondence frequency in 3.5Ghz and 5.5Ghz frequencies, and the center frequency point of trap can be changed by the length for adjusting the first S-shaped line of rabbet joint 11 and the first inverted U-shaped line of rabbet joint 12, and other trap frequencies are substantially unaffected when one of change adjustment, so this antenna trap function is relatively stable, the function of wave filter is instead of effectively, in addition this antenna size is less, is easy to integrated.
The present embodiment is illustrated with the ultra wideband frequency that trap frequency covers 3.1GHz-10.6GHz.
In the present embodiment, medium substrate 1 adopt dielectric constant for 4.4 FR4, its thickness be 1.6mm.
In the present embodiment, the characteristic impedance of microstrip-fed line is 50 ohm.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; equivalent structure or equivalent flow conversion that every utilization description of the invention and accompanying drawing content are made; or other related technical fields are directly or indirectly used in, it is included within the scope of the present invention.
Claims (8)
1. there is the ultra-wideband antenna of double trap features, it is characterized in that, including medium substrate, the lower surface of the medium substrate is provided with earth plate, the microstrip-fed line that the upper surface of the medium substrate is provided with radiating element and is connected with radiating element, the radiating element includes the first S-shaped line of rabbet joint, and the microstrip-fed line includes the first inverted U-shaped line of rabbet joint and distributing point, and each several part is arranged into axial symmetry along the ordinate centrage of medium substrate.
2. the ultra-wideband antenna with double trap features according to claim 1, it is characterized in that, the first S-shaped line of rabbet joint includes the first revers turn part, the second revers turn part, the 3rd revers turn part, the 4th revers turn part and the 5th revers turn part, its trap frequency is 3.35GHz-3.75GHz, the first S-shaped line of rabbet joint has four knuckles, first revers turn part is vertical with the second revers turn part, second revers turn part and the 3rd revers turn part are vertical, 3rd revers turn part is vertical with the 4th revers turn part, 4th revers turn part and the 5th revers turn part are vertical, i.e. the inflection angle of the first S-shaped line of rabbet joint is 90 degree；First S-shaped line of rabbet joint line of rabbet joint width is 0.3mm, first revers turn part length is 8mm, the second revers turn part length is 9mm, the 3rd revers turn part length is 8mm, the 4th revers turn part length is 9mm and the 5th revers turn part length is 8mm, and the first S-shaped line of rabbet joint is 24mm away from medium substrate distance from bottom.
3. the ultra-wideband antenna with double trap features according to claim 1, it is characterized in that, the inverted U-shaped line of rabbet joint includes the 6th revers turn part, the 7th revers turn part and the 8th revers turn part, and its trap frequency is 5.15GHz-5.85GHz, and the first inverted U-shaped line of rabbet joint has two knuckles；6th revers turn part is vertical with the 7th revers turn part, and the 7th revers turn part and the 8th revers turn part are vertical, i.e., the inflection angle of the first inverted U-shaped line of rabbet joint is 90 degree；First inverted U-channel wire casing line width is 0.3mm, and the 6th revers turn part length is 6mm, the 7th revers turn part length is 2mm, the 8th revers turn part length is 6mm, and the first inverted U-channel line-spacing medium substrate distance from bottom is 10mm.
4. the ultra-wideband antenna with double trap features according to claim 1, it is characterised in that the earth plate medium substrate lower surface covers copper part, symmetrical with longitudinal centre line；The earth plate Part I includes the first broken line, the second broken line, third fold line, the 4th camber line, the 5th broken line, the 6th broken line, and earth plate includes 6 knuckles altogether；First broken line and the second broken line are vertical, second broken line is vertical with third fold line, 5th broken line and the 6th broken line are vertical, 6th broken line and the first broken line are vertical, that is the inflection angle of earth plate is 90 degree, the length of the first broken line of earth plate be 30mm, the length of the second broken line be 12mm, the length of third fold line be 10.7mm, the length of the 4th camber line be 8.6mm, the length of the 5th broken line is 10.7mm and the length of the 6th broken line is 12mm.
5. the ultra-wideband antenna with double trap features according to claim 1, it is characterised in that the microstrip-fed line being connected with radiating element is rectangular configuration, and microstrip-fed line length is 11.5mm, a width of 3mm.
6. the ultra-wideband antenna with double trap features according to claim 1, it is characterized in that, ultra-wideband antenna with double trap features is square, the ultra-wideband antenna length of side with double trap features is 30mm, the radiating element of medium substrate upper surface is that, with medium substrate top midpoint as the center of circle, radius is covered on medium substrate for the circle of 18mm.
7. the ultra-wideband antenna with double trap features according to claim 1, it is characterised in that the earth plate top edge mid portion adopts arc-shaped structure.
8. the ultra-wideband antenna with double trap features according to claim 1, it is characterised in that frequency range covers the ultra wideband frequency of the 3.1GHz-10.6GHz in addition to 3.35GHz-3.75GHz, 5.15GHz-5.85GHz, two trap frequencies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510609197.3A CN106549220A (en) | 2015-09-23 | 2015-09-23 | Ultra-wideband antenna with double trap features |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510609197.3A CN106549220A (en) | 2015-09-23 | 2015-09-23 | Ultra-wideband antenna with double trap features |
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| Publication Number | Publication Date |
|---|---|
| CN106549220A true CN106549220A (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510609197.3A Pending CN106549220A (en) | 2015-09-23 | 2015-09-23 | Ultra-wideband antenna with double trap features |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7061442B1 (en) * | 2005-02-05 | 2006-06-13 | Industrial Technology Research Institute | Ultra-wideband antenna |
| CN202373694U (en) * | 2011-10-26 | 2012-08-08 | 天津职业技术师范大学 | Ultra wideband antenna with double-trapped wave characteristic |
| CN102723601A (en) * | 2012-06-19 | 2012-10-10 | 北京航空航天大学 | Ultra-wide-band dual-notch paster antenna adopting wide-attenuation-band electromagnetic band gap structure |
| CN103730722A (en) * | 2014-01-06 | 2014-04-16 | 北京邮电大学 | Small ultra-wide-band antenna with dual-band trapped waves |
-
2015
- 2015-09-23 CN CN201510609197.3A patent/CN106549220A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7061442B1 (en) * | 2005-02-05 | 2006-06-13 | Industrial Technology Research Institute | Ultra-wideband antenna |
| CN202373694U (en) * | 2011-10-26 | 2012-08-08 | 天津职业技术师范大学 | Ultra wideband antenna with double-trapped wave characteristic |
| CN102723601A (en) * | 2012-06-19 | 2012-10-10 | 北京航空航天大学 | Ultra-wide-band dual-notch paster antenna adopting wide-attenuation-band electromagnetic band gap structure |
| CN103730722A (en) * | 2014-01-06 | 2014-04-16 | 北京邮电大学 | Small ultra-wide-band antenna with dual-band trapped waves |
Non-Patent Citations (1)
| Title |
|---|
| 韩雷;焦永昌;赵钢;倪涛;: "一种新型具有双陷波特性的超宽带天线设计" * |
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Application publication date: 20170329 |