CN107895840B - A kind of paraboloid cone ultra-wideband antenna of edge feed - Google Patents
A kind of paraboloid cone ultra-wideband antenna of edge feed Download PDFInfo
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- CN107895840B CN107895840B CN201711068807.9A CN201711068807A CN107895840B CN 107895840 B CN107895840 B CN 107895840B CN 201711068807 A CN201711068807 A CN 201711068807A CN 107895840 B CN107895840 B CN 107895840B
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- bottom plate
- paraboloid
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- lateral reflection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/104—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas
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- Aerials With Secondary Devices (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention discloses a kind of paraboloid cone ultra-wideband antennas of edge feed, including the lateral reflection plate and bottom plate being arranged in a mutually vertical manner, main radiator is provided between lateral reflection plate and bottom plate, main radiator includes top paraboloid and bottom plane, bottom plane is parallel with the surface of lateral reflection plate, bottom plane is connected to the surface of lateral reflection plate by supporting rod, is embedded in bottom plate and is provided with feeder equipment, and feeder equipment is close at the edge of main radiator.It solves the problems, such as above-mentioned not taking into account that antenna standing wave on entire working frequency range is small, gain is big, directionality is good simultaneously in the prior art.
Description
【Technical field】
The invention belongs to radio-frequency antenna technical fields, and in particular to a kind of paraboloid cone ultra wide band day of edge feed
Line.
【Background technology】
Antenna is the device of radio frequency and microwave telecommunication system indispensability, the quality of performance directly influence communication quality and
The design of whole system, its gain of the antenna of excellent in design is big, impedance matching is good.Ultra-wideband communication system has more logical than generally
The excellent characteristic of letter system, such as spectral density it is low, be not easy to be trapped, the big various advantages of transport information capacity.Certainly, surpass
Broadband system has very big difference with general Communication System Design method, all dramatically different from antenna to transceiver architecture.Wherein,
For the design of antenna, more stringent requirements are proposed, it is desirable that the antenna of design standing wave on entire working frequency range is small, gain is big, side
Tropism is good etc..The design method of ultra-wideband antenna has based on microstrip line construction, based on conical structure, logarithm period day
Line, existing ultra-wideband antenna are difficult all to be taken into account in these indexs, and often some index is good and other indexs reduce very
To deterioration.
Such as patent CN103151610B, bandwidth of operation is larger but its maximum gain is very poor, cause practical communication efficiency compared with
Difference；Its wave beam of patent CN102891353B is very wide, and directionality is poor.The ultra-wideband antenna of some other planar structure, due to restricted
Influence in design space, it is also difficult to good compromise is obtained in these indexs, as designed by patent CN102969564B
Antenna.Fig. 1 show existing circular cone ultra-wideband antenna schematic diagram, and the antenna involved by the insides document 1-3 is all based on such
Structure and its improvement.Fig. 2 is the far-field pattern of such circular cone ultra-wideband antenna.Document 1：Zhang Xin, UWB conical antenna and its battle array
The research Maritime Affairs University Of Dalian master thesis .2013.6 of row；Document 2:Liu Sihao, time domain ultra-wideband antenna is in long-range UWB
Application study University of Electronic Science and Technology master thesis .2016.6 in positioning system；Document 3：Cui Yuanshan, based in the rooms UWB
The time-domain antenna research University of Electronic Science and Technology master thesis .2015.6 of positioning system.This kind of circular cone ultra-wideband antenna is total to
Property to carry out feed point between the vertex of circular cone and a big reflecting surface, the broader bandwidth of such circular cone ultra-wideband antenna is full
The requirement of foot ultra wide band work.But the antenna pattern of such circular cone ultra-wideband antenna is omnidirectional in the horizontal direction, is being hung down
Similar quarter-wave monopole in the poincare half plane of straight plane, it is specific as shown in Fig. 2, not having directional gain, no
The scene that can be required with directional, such as beam system and the more demanding radar system of directional.
【Invention content】
The object of the present invention is to provide a kind of paraboloid cone ultra-wideband antennas of edge feed, to solve above-mentioned existing skill
The antenna problem that standing wave is small on entire working frequency range, gain is big, directionality is good can not be taken into account in art simultaneously.
The present invention uses following technical scheme：A kind of paraboloid cone ultra-wideband antenna of edge feed, including mutually hang down
The lateral reflection plate and bottom plate being directly arranged, are provided with main radiator between lateral reflection plate and bottom plate, and main radiator includes that top is thrown
Object plane and bottom plane, bottom plane is parallel with the surface of lateral reflection plate, and bottom plane is connected to lateral reflection plate by supporting rod
Surface, be embedded in bottom plate and be provided with feeder equipment, feeder equipment is close at the edge of main radiator；
If the paraboloidal radius of main radiator is R, focal length D；The length of bottom plate is H1, width H2；Lateral reflection plate
Height is V1, width V2；The centre distance bottom plate of feeder equipment 4 is F1 at a distance from lateral reflection plate junction, then these are joined
The conditional relationship that number meets is as follows：
D=2R, F1=R/2, H1=V1 >=3R, H2=V2 >=2R.
Further, feeder equipment includes copper probe, and the polytetrafluoroethylene (PTFE) that hollow cylinder structure is set with outside copper probe is exhausted
Edge body, teflon insulators insertion is in the plate body of bottom plate.
Further, a diameter of 3mm of teflon insulators, length 2mm, a diameter of 1mm of copper probe, length
For 3.2mm, the top surface of teflon insulators and the flush of bottom plate, the top of copper probe are more than the surface of bottom plate
0.2mm, the top of copper probe and the edge of main radiator contact with each other to current lead-through.
The beneficial effects of the invention are as follows：The present invention takes full advantage of space structure, using paraboloid cone as primary radiation
Body, main radiator not only there is very wide bandwidth of operation to also have stronger directionality in the case where edge is fed and has bottom plate.
Further, its directionality and gain are strengthened by rationally designing lateral reflection plate and bottom plate.The antenna maximum gain of the present invention can
To reach about 11.2dBi@6.8GHz, about 28.3 ° of@6.8GHz of main lobe width minimum, and frequency coverage 3.1GHz-19GHz, it stays
Wave is less than 2.5.The antenna of the present invention can be widely applied to ultra-wideband communication system, radar detection and imaging system etc., special
Not Shi He narrow beam high-gain application scenarios, significantly improved than existing similar antenna directivity.
【Description of the drawings】
Fig. 1 is the circular cone ultra-wideband antenna structural schematic diagram in background of invention；
Fig. 2 is the analogous diagram of the circular cone ultra-wideband antenna in background of invention；
Fig. 3 is a kind of structural schematic diagram of the paraboloid cone ultra-wideband antenna of edge feed of the present invention；
Fig. 4 is a kind of front view of the paraboloid cone ultra-wideband antenna of edge feed of the present invention；
Fig. 5 is a kind of vertical view of the bottom plate of the paraboloid cone ultra-wideband antenna of edge feed of the present invention；
Fig. 6 is a kind of right view of the lateral reflection plate of the paraboloid cone ultra-wideband antenna of edge feed of the present invention；
Fig. 7 is a kind of feeder equipment schematic diagram of the paraboloid cone ultra-wideband antenna of edge feed of the present invention；
Fig. 8 is a kind of VSWR analogous diagrams of the paraboloid cone ultra-wideband antenna embodiment antenna of edge feed of the present invention；
Fig. 9 is that a kind of frequency of the paraboloid cone ultra-wideband antenna embodiment antenna of edge feed of the present invention is 6.8GHz
When far field analogous diagram；
Figure 10 be a kind of paraboloid cone ultra-wideband antenna embodiment antenna of edge of present invention feed frequency be 5GHz,
Far field analogous diagram when 8GHz and 10GHz.
Wherein, 1. lateral reflection plate, 2. supporting rods, 3. main radiators, 4. feeder equipments, 5. bottom plates, 41. polytetrafluoroethylene (PTFE) are exhausted
Edge body, 42. bronze medal probes.
【Specific implementation mode】
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
The present invention provides a kind of paraboloid cone ultra-wideband antennas of edge feed, as shown in figure 3, including being mutually perpendicular to
The lateral reflection plate 1 and bottom plate 5 of setting, are provided with main radiator 3 between lateral reflection plate 1 and bottom plate 5, and main radiator 3 includes top
Portion's paraboloid and bottom plane, bottom plane is parallel with the surface of lateral reflection plate 1, and bottom plane is connected to side by supporting rod 2
The surface of reflecting plate 1 is embedded in bottom plate 2 and is provided with feeder equipment 4, and feeder equipment 4 is close at the edge of main radiator 3.
As shown in Figures 4 to 6, if 3 paraboloidal radius of main radiator is R, focal length D；The length of bottom plate 5 is H1, wide
Degree is H2；The height of lateral reflection plate 1 is V1, width V2；Distance of the place-centric of feeder equipment apart from 5 broadside of bottom plate be
F1, the then conditional relationship that these parameters meet are as follows：
D=2R, F1=R/2, H1=V1 >=3R, H2=V2 >=2R.
Wherein, as shown in fig. 7, feeder equipment 4 includes the copper probe 42 of cylindrical structure, open tubular column is set with outside copper probe 42
The teflon insulators 41 of body structure, the insertion of teflon insulators 41 are mounted in bottom plate 5, teflon insulation
Body 41 is interference fitted with bottom plate 5, is interference fitted between copper probe 42 and teflon insulators 41.
The diameter of teflon insulators 41 is set as 3mm, and length is set as 2mm, and the diameter of copper probe 42 is set as
1mm, length are set as 3.2mm, the flush of the top surface and bottom plate 5 of the teflon insulators 41 of embedded bottom plate 5, and copper is visited
The top of needle 42 is more than the surface 0.2mm of bottom plate 5 and contacts with each other to current lead-through with the edge of main radiator.
A kind of paraboloid cone ultra-wideband antenna of edge feed of the present invention includes main radiator 3, bottom plate 5, lateral reflection
Plate 1, supporting rod 2 and feeder equipment 4 form；Main radiator 3 be paraboloid cone structure, paraboloidal radius be R, focal length D,
Material is copper；Bottom plate 5 is that length is H1, and broadband H2, thickness is the copper coin of 1mm；Side radiant panel 1 is that height is V1, and broadband is
V2, thickness are the copper coin of 1mm；A diameter of D2, the length L2 of supporting rod 2, material are polytetrafluoroethylene (PTFE)；Supporting rod 2 is side
Reflecting plate 1 is with 3 glue of main radiator and together；The center position bottom plate 5 of feed plantation 4 and 1 junction of lateral reflection plate
Distance is F1, and the distance apart from 5 another side of bottom plate is F2, a diameter of 3mm of trepanning on bottom plate 5.Feeder equipment 4 includes poly-
Tetrafluoroethene insulator 41 and copper probe 42；Wherein, a diameter of 3mm of teflon insulators, length 2.0mm；Copper probe
42 a diameter of 1mm, length 3.2mm；Copper probe 42 is in close contact together with main radiator 3, teflon insulators
41 with bottom plate 5 be interference fit；External signal is loaded by copper probe 42 above antenna, and the design impedance of antenna is 50 Europe.
Embodiment：
Make a kind of paraboloid cone ultra-wideband antenna of edge feed, main radiator 3 radius R=20mm, focal length D=
40mm；Bottom plate 5 length H1=60mm, width H2=40mm；Lateral reflection plate 1 height V1=60mm, width V2=40mm；Feed dress
Set that be located at 5 position of bottom plate at 4 be H1=10mm, at H2=10mm, a diameter of 3mm of power feed hole on bottom plate 5；Lateral reflection plate 1 is high
Spend V1=60mm, width V2=20mm.
The antenna of the embodiment is tested, it is as a result as follows：
Fig. 8 show a kind of voltage standing wave ratio of the paraboloid cone ultra-wideband antenna of edge feed of the present embodiment,
It is less than 2.5 in 3.1GHz to 19GHz range standing internal waves, standing wave is less than 2 near 4.8GHz to 9.2GHz, it is seen then that its application frequency
Section span has reached 15.9G.
Fig. 9 is that the paraboloid cone ultra-wideband antenna that a kind of edge of the present embodiment is fed is imitative in the far field of 6.8GHz frequencies
True figure, maximum gain have reached 11.2dBi, and main lobe width is only 28.3 °.As it can be seen that its gain is good and directionality is very excellent
It is different.
Figure 10 is a kind of paraboloid cone ultra-wideband antenna of edge feed of the present embodiment in 5GHz, 8GHz, 10GHz
Far field analogous diagram, it is seen then that although its gain is declined but still well, while directionality index is also good.
The design method of existing ultra-wideband antenna has based on microstrip line construction, based on conical structure, logarithm period day
Line, existing ultra-wideband antenna are difficult all to be taken into account in these indexs, and often some index is good and other indexs reduce very
To deterioration.Such as patent CN103151610B, bandwidth of operation is larger but its maximum gain is very poor, cause practical communication efficiency compared with
Difference；Its wave beam of patent CN102891353B is very wide, and directionality is poor.The ultra-wideband antenna of some other planar structure, due to restricted
Influence in design space, it is also difficult to good compromise is obtained in these indexs, as designed by patent CN102969564B
Antenna.Fig. 1 show existing circular cone ultra-wideband antenna schematic diagram.The general character of this kind of antenna is in the prior art：In circular cone
Feed point is carried out between vertex and a big reflecting surface.Its broader bandwidth of such antenna meets the requirement of ultra wide band work.But
Its antenna pattern of such antenna is omnidirectional in the horizontal direction, the similar quarter-wave in the poincare half plane of vertical plane
Long unipole antenna, it is specific as shown in Figure 2.Fig. 2 is the analogous diagram of circular cone ultra-wideband antenna in background technology, reflecting surface diameter
80mm, cone diameter 40mm, cone and reflection interplanar distance 0.3mm.From Figure 2 it can be seen that its far field field strength of traditional ultra-wideband antenna
It is in the horizontal direction omnidirectional, is split into 2 lobes in vertical process, each lobe gain is in 6dBi or so, it is seen that it is not bright
Aobvious directionality does not have directional gain, the scene that cannot be required with directional.Such as beam system and to direction
The more demanding radar system of property.Comparison diagram 2 is as it can be seen that using a kind of paraboloid cone ultra-wideband antenna of edge feed of the present invention
Constructional device and feeding classification, directionality greatly enhance.
Do not have directional problems for the antenna designed by background technology Literature 1-3, the present invention devises a kind of side
The paraboloid cone ultra wide band High-directivity antenna of edge feed.Specifically design method is：Design a kind of paraboloid cone structure simultaneously
This structure is stood on into a big reflecting surface, is fed at the edge of paraboloid cone.This structure is with ultra-wide
While band bandwidth of operation, also there is significant directional gain.Further, it is arranged in the parallel surface of paraboloid cone one big
Reflecting surface, so that the directionality of antenna is reinforced again.Simulation analysis shows that the maximum gain of the antenna reaches about 11.2dBi@
6.8GHz, about 28.3 ° of@6.8GHz of main lobe width minimum, and frequency coverage 3.1GHz-19GHz, standing wave are less than 2.5.It is designed
Antenna can be widely applied to ultra-wideband communication system, radar detection and imaging system etc., be particularly suitable for narrow beam height and increase
The application scenarios of benefit, significantly improve than existing similar antenna directivity.
Claims (3)
1. a kind of paraboloid cone ultra-wideband antenna of edge feed, which is characterized in that including the lateral reflection being arranged in a mutually vertical manner
Plate (1) and bottom plate (5) are provided with main radiator (3), the main radiator between the lateral reflection plate (1) and bottom plate (5)
(3) include top paraboloid and bottom plane, the bottom plane is parallel with the surface of the lateral reflection plate (1), the bottom
Plane is connected to the surface of the lateral reflection plate (1) by supporting rod (2), is embedded in the bottom plate (5) and is provided with feed dress
It sets (4), the feeder equipment (4) is close at the edge of the main radiator (3)；
If the paraboloidal radius of the main radiator (3) is R, focal length D；The length of bottom plate (5) is H1, width H2；Side is anti-
The height for penetrating plate (1) is V1, width V2；The centre distance bottom plate (5) of feeder equipment (4) and lateral reflection plate (1) junction
Distance be F1, then these parameters meet conditional relationship it is as follows：D=2R, F1=R/2, H1=V1 >=3R, H2=V2 >=2R.
2. a kind of paraboloid cone ultra-wideband antenna of edge feed as described in claim 1, which is characterized in that the feed
Device (4) includes copper probe (42), and the teflon insulators of hollow cylinder structure are set with outside the copper probe (42)
(41), the teflon insulators (41) are embedded in the plate body of the bottom plate (5).
3. a kind of paraboloid cone ultra-wideband antenna of edge feed as claimed in claim 2, which is characterized in that described poly- four
A diameter of 3mm of vinyl fluoride insulator (41), length 2mm, a diameter of 1mm, the length 3.2mm of the copper probe (42),
The top of the flush of the top surface and the bottom plate (5) of the teflon insulators (41), the copper probe (42) is super
Cross the surface 0.2mm of the bottom plate (5), the top of the copper probe (42) and the edge of the main radiator contact with each other to
Current lead-through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711068807.9A CN107895840B (en) | 2017-11-03 | 2017-11-03 | A kind of paraboloid cone ultra-wideband antenna of edge feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711068807.9A CN107895840B (en) | 2017-11-03 | 2017-11-03 | A kind of paraboloid cone ultra-wideband antenna of edge feed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107895840A CN107895840A (en) | 2018-04-10 |
| CN107895840B true CN107895840B (en) | 2018-09-18 |
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| CN201711068807.9A Expired - Fee Related CN107895840B (en) | 2017-11-03 | 2017-11-03 | A kind of paraboloid cone ultra-wideband antenna of edge feed |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1542314A1 (en) * | 2003-12-11 | 2005-06-15 | Sony International (Europe) GmbH | Three-dimensional omni-directional monopole antenna designs for ultra- wideband applications |
| CN101013772B (en) * | 2006-09-13 | 2011-09-07 | 北京航空航天大学 | Low-frequency ultra-wideband compact feed |
| RU2448395C1 (en) * | 2010-12-22 | 2012-04-20 | Государственное образовательное учреждение высшего профессионального образования "Военная академия связи имени С.М. Буденного" Министерства обороны Российской Федерации | Conical asymmetric vibrator |
| CN102969557B (en) * | 2012-09-29 | 2015-04-22 | 电子科技大学 | Vivaldi antenna array |
| CN104953297B (en) * | 2015-07-14 | 2017-11-03 | 哈尔滨工业大学 | The small three frequencies multimode antenna of electricity |
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2017
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