CN204696241U - Ultra-wideband antenna - Google Patents
Ultra-wideband antenna Download PDFInfo
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- CN204696241U CN204696241U CN201520343617.3U CN201520343617U CN204696241U CN 204696241 U CN204696241 U CN 204696241U CN 201520343617 U CN201520343617 U CN 201520343617U CN 204696241 U CN204696241 U CN 204696241U
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Abstract
The utility model is applicable to communication field, provide a kind of ultra-wideband antenna, comprise substrate and be covered in the micro-band of radiation on this substrate, the micro-band of described radiation offers the gradual change wire casing, the feed wire casing harmony that are interconnected and to shake cavity, described gradual change wire casing is the trumpet type launching to both sides to be formed, and its narrow end is connected to described resonance chamber by described feed wire casing, the axis of symmetry of the relatively described gradual change wire casing of described feed wire casing is to a lateral buckling.Traditional Vivaldi antenna foundation improves the relative position of gradual change wire casing and resonance chamber, and the feed line of rabbet joint being provided with bending is communicated with gradual change wire casing and resonance chamber, eliminate the feed radiation zone that Chebyshev's band-like portions are set at substrate back, antenna area is reduced, simplify manufacture craft, reduce the cost.
Description
Technical field
The utility model belongs to the communications field, particularly relates to a kind of ultra-wideband antenna.
Background technology
Traditional Vivaldi antenna has multiple feed form, as coaxial line direct feed, coaxial outer conductor is directly connected on one side metal of the line of rabbet joint, and center feed is directly connected on other metal on one side, on the line of rabbet joint, just define electromagnetic field like this, thus the energy on coaxial line is delivered to aerial radiation part by the form of electromagnetic field.The advantage of this feeding classification is that structure is simple, and feed efficiency is higher, but this feed also exists certain discontinuous reaction at distributing point place, reflects larger.And coaxial feed may cause different because everyone welding position is different, like this with regard to bringing hidden danger to the consistency of antenna, be not suitable for a large amount of processings.
In addition, also have feed microstrip line, microstrip line by the mode of electromagnetic coupled Energy Coupling in the line of rabbet joint.The operation of this feeding classification is comparatively simple, but is coupled with the line of rabbet joint owing to will vacate quarter-wave microstrip line, and the form of feed determines the bandwidth of this feed structure can not be very wide.Meanwhile, be the mode of couple feed due to what take, the loss of energy is also unavoidable.
For the shortcoming of above-mentioned two kinds of feeding classifications, improve, as shown in Figure 1, microstrip line short-circuit end uses quarter-wave sector structure, the open end of the line of rabbet joint 21 uses quarter-wave circular configuration 22 (also can use quarter-wave sector structure), which reduce the dependence of frequency to quarter-wave microstrip line 20 and the line of rabbet joint 21, effectively increase the bandwidth of antenna.But bandwidth is still subject to the restriction of quarter-wave microstrip line 20 and the line of rabbet joint 21, needs larger area just can bring larger bandwidth, but also need to arrange corresponding fed microstrip 30 at the back side of base material 10, complex manufacturing process.
Utility model content
The object of the utility model embodiment is to provide a kind of ultra-wideband antenna, excessive to solve traditional Vivaldi antenna area, and the problem of complex manufacturing technology.
A kind of ultra-wideband antenna that the utility model provides comprises substrate and is covered in the micro-band of radiation on this substrate, the micro-band of described radiation offers the gradual change wire casing, the feed wire casing harmony that are interconnected and to shake cavity, described gradual change wire casing is the trumpet type launching to both sides to be formed, and its narrow end is connected to described resonance chamber by described feed wire casing, the axis of symmetry of the relatively described gradual change wire casing of described feed wire casing is to a lateral buckling.
Further, described gradual change wire casing is launch symmetrically towards both sides.
Further, described gradual change wire casing is expanded to the edge of the micro-band of described radiation symmetrically from the inside to the outside to both sides with exponential curve form.
Further, described resonance chamber is circular or fan-shaped.
Further, the micro-band of described radiation also offers many gaps in described gradual change wire casing both sides, and described gap is perpendicular to the axis of symmetry of described gradual change wire casing, and the relatively described axis of symmetry is symmetrical.
Further, described gap is positioned at the edge of described substrate.
Further, described gap is rectilinear slot.
Further, described substrate offers in position, described gap the groove running through described substrate.
Further, described ultra-wideband antenna adopts coaxial feeding, and distributing point is arranged on feed wire casing.
Further, also comprise conductive protecting layer, described conductive protecting layer is covered in the micro-band of described radiation.
Above-mentioned ultra-wideband antenna improves the relative position of gradual change wire casing and resonance chamber on traditional Vivaldi antenna foundation, and the feed line of rabbet joint being provided with bending is communicated with gradual change wire casing and resonance chamber, eliminate the feed radiation zone that substrate back again arranges Chebyshev's band-like portions, antenna area is reduced, simplify manufacture craft, reduce the cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional Vivaldi antenna;
The antenna structure view that Fig. 2 provides for the utility model first embodiment;
The antenna structure view that Fig. 3 provides for the utility model second embodiment;
The antenna emulation testing figure that Fig. 4 provides for the utility model first embodiment;
The antenna emulation testing figure that Fig. 5 provides for the utility model second embodiment.
Embodiment
In order to make the technical problems to be solved in the utility model, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that tool band embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
With reference to figure 1, ultra-wideband antenna comprises substrate 100 and is covered in the micro-band 200 of radiation on this substrate 100, the micro-band 200 of radiation offers the gradual change wire casing 201, feed wire casing 202 and the resonance chamber 203 that are interconnected, gradual change wire casing 201 is the trumpet type hollow out launching to both sides to be formed, and the narrow end of gradual change wire casing 201 is connected to resonance chamber 203 by feed wire casing 202, the axis of symmetry of the relative gradual change wire casing 201 of feed wire casing 202 is to a lateral buckling.Preferably, gradual change wire casing 201 is launch to form trumpet type hollow out symmetrically towards both sides.Be understandable that, this feed wire casing 202 can offset by the wherein lateral buckling in the axis of symmetry A-A ` both sides of gradual change wire casing 201.
In further embodiment, gradual change wire casing 201 is the edges being expanded to the micro-band 200 of radiation with exponential curve form symmetrically from the inside to the outside to both sides.Namely the both sides of the edge line of gradual change wire casing 201 is the curve of exponential function change, and the edge extending to the micro-band of radiation 200 is axisymmetrically formed horn-like.In a further embodiment, resonance chamber 203 is circular or fan-shaped.
So, traditional Vivaldi antenna foundation improves the relative position of gradual change wire casing 201 and resonance chamber 203, and the feed line of rabbet joint being provided with bending is communicated with gradual change wire casing 201 and resonance chamber 203, eliminate again the feed radiation (label 30 with reference in figure 1) that substrate 100 back side arranges Chebyshev's band-like portions, antenna area is made to reduce while ensure that antenna performance, and simplify manufacture craft, reduce the cost.As shown in Figure 4, voltage standing wave ratio emulation testing figure.
In a further embodiment, with reference to figure 3, the micro-band 200 of radiation also offers many gaps 204 in gradual change wire casing 201 both sides, and gap 204 is perpendicular to the axis of symmetry A-A ` of gradual change wire casing 201, and relative symmetry axis A-A ` is symmetrical.In the present embodiment, gap 204 is positioned at the edge of substrate 100, namely inwardly offers at the edge of substrate 100.Preferably, gap 204 is rectilinear slot 204.In addition, in a further embodiment, substrate 100 offers in position, gap 204 groove running through substrate 100 bottom surface.
In a further embodiment, ultra-wideband antenna also comprises conductive protecting layer, and conductive protecting layer is covered in the surface of the micro-band 200 of radiation.
So, with reference to the emulation testing figure of Fig. 5, offer the gap 204 of vertical symmetry in the both sides of gradual change wire casing 201 level, while the antenna performance shown in Fig. 2 can be ensure that, antenna area is reduced.
In the above-described embodiment, the distributing point of ultra-wideband antenna is arranged on feed wire casing 202, directly adopts coaxial line to carry out feed, welds at feed wire casing 202.It is worth mentioning that, coaxial line is consistent with antenna length direction, is convenient to practical set.
Below only described is preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. a ultra-wideband antenna, comprise substrate and be covered in the micro-band of radiation on this substrate, it is characterized in that, the micro-band of described radiation offers the gradual change wire casing, the feed wire casing harmony that are interconnected and to shake cavity, described gradual change wire casing is the trumpet type launching to both sides to be formed, and its narrow end is connected to described resonance chamber by described feed wire casing, the axis of symmetry of the relatively described gradual change wire casing of described feed wire casing is to a lateral buckling.
2. ultra-wideband antenna as claimed in claim 1, it is characterized in that, described gradual change wire casing is launch symmetrically towards both sides.
3. ultra-wideband antenna as claimed in claim 1 or 2, it is characterized in that, described gradual change wire casing is expanded to the edge of the micro-band of described radiation symmetrically from the inside to the outside to both sides with exponential curve form.
4. ultra-wideband antenna as claimed in claim 1 or 2, is characterized in that, described resonance chamber is circular or fan-shaped.
5. ultra-wideband antenna as claimed in claim 1, it is characterized in that, the micro-band of described radiation also offers many gaps in described gradual change wire casing both sides, and described gap is perpendicular to the axis of symmetry of described gradual change wire casing, and the relatively described axis of symmetry is symmetrical.
6. ultra-wideband antenna as claimed in claim 5, it is characterized in that, described gap is positioned at the edge of described substrate.
7. the ultra-wideband antenna as described in claim 5 or 6, is characterized in that, described gap is rectilinear slot.
8. the ultra-wideband antenna as described in claim 5 or 6, is characterized in that, described substrate offers in position, described gap the groove running through described substrate.
9. ultra-wideband antenna as claimed in claim 1, is characterized in that, described ultra-wideband antenna adopts coaxial feeding, and distributing point is arranged on feed wire casing.
10. ultra-wideband antenna as claimed in claim 1, it is characterized in that, also comprise conductive protecting layer, described conductive protecting layer is covered in the surface of the micro-band of described radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520343617.3U CN204696241U (en) | 2015-05-25 | 2015-05-25 | Ultra-wideband antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520343617.3U CN204696241U (en) | 2015-05-25 | 2015-05-25 | Ultra-wideband antenna |
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| Publication Number | Publication Date |
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| CN204696241U true CN204696241U (en) | 2015-10-07 |
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| CN201520343617.3U Active CN204696241U (en) | 2015-05-25 | 2015-05-25 | Ultra-wideband antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736147A (en) * | 2018-06-06 | 2018-11-02 | 合肥工业大学 | A kind of ultra wide band Vivaldi circular polarisation phased array antenna units |
| CN110268581A (en) * | 2016-12-15 | 2019-09-20 | 阿瑞利斯控股有限公司 | Tunable Waveguide transitions |
| CN110492231A (en) * | 2019-07-08 | 2019-11-22 | 江苏携尔泰智能设备科技有限公司 | A kind of broadband RFID antenna |
| CN110767978A (en) * | 2019-09-29 | 2020-02-07 | 西北核技术研究院 | Ultra-wide spectrum electromagnetic pulse radiation antenna |
| CN111262034A (en) * | 2018-11-30 | 2020-06-09 | 深圳市通用测试***有限公司 | Antenna structure |
| CN114243304A (en) * | 2021-12-03 | 2022-03-25 | 西北工业大学 | Two-unit all-metal Vivaldi circularly polarized antenna |
-
2015
- 2015-05-25 CN CN201520343617.3U patent/CN204696241U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110268581A (en) * | 2016-12-15 | 2019-09-20 | 阿瑞利斯控股有限公司 | Tunable Waveguide transitions |
| CN108736147A (en) * | 2018-06-06 | 2018-11-02 | 合肥工业大学 | A kind of ultra wide band Vivaldi circular polarisation phased array antenna units |
| CN111262034A (en) * | 2018-11-30 | 2020-06-09 | 深圳市通用测试***有限公司 | Antenna structure |
| CN110492231A (en) * | 2019-07-08 | 2019-11-22 | 江苏携尔泰智能设备科技有限公司 | A kind of broadband RFID antenna |
| CN110767978A (en) * | 2019-09-29 | 2020-02-07 | 西北核技术研究院 | Ultra-wide spectrum electromagnetic pulse radiation antenna |
| CN114243304A (en) * | 2021-12-03 | 2022-03-25 | 西北工业大学 | Two-unit all-metal Vivaldi circularly polarized antenna |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Effective date of registration: 20160331 Address after: 518057 Guangdong City, Nanshan District province high tech Zone in the middle of a high tech building, building No. 2, No. 9, building Patentee after: Shenzhen Guangqi Innovative Technology Co., Ltd. Address before: 518057 Nanshan District City, Guangdong province high tech Zone in the middle of a high tech building, No. 9 software building Patentee before: Shenzhen Kuang-Chi Institute of Advanced Technology Patentee before: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. |