CN106299709A - The broadband TEM electromagnetic horn of compact high directionality - Google Patents
The broadband TEM electromagnetic horn of compact high directionality Download PDFInfo
- Publication number
- CN106299709A CN106299709A CN201610642982.3A CN201610642982A CN106299709A CN 106299709 A CN106299709 A CN 106299709A CN 201610642982 A CN201610642982 A CN 201610642982A CN 106299709 A CN106299709 A CN 106299709A
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- Prior art keywords
- electromagnetic horn
- floor
- single armed
- feed port
- compact high
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
- H01Q5/55—Feeding or matching arrangements for broad-band or multi-band operation for horn or waveguide antennas
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- Waveguide Aerials (AREA)
Abstract
The invention provides the broadband TEM electromagnetic horn of a kind of compact high directionality, including: TEM electromagnetic horn and feed port.Described TEM electromagnetic horn includes the short-circuit backboard of tradition TEM antenna two-arm and low-frequency compensation, and the inner core of feed port and outer conductor two-arm with TEM loudspeaker respectively is connected.Present configuration is simple, and cost of manufacture is low, is capable of the widest working frequency range and stable directed radiation on the premise of ensureing size, it is possible to meets the demand of the GPR demand under different condition and system compact, has a extensive future.
Description
Technical field
The present invention relates to TEM electromagnetic horn, in particular it relates to the broadband TEM electromagnetic horn of compact high directionality, especially
It is the wideband directional TEM electromagnetic horn of a kind of low-frequency compensation, works in VHF/UHF frequency range, there is stable directional diagram, can apply
In GPR field.
Background technology
In prior art, using such as the doublet antennas such as teledish at GPR, this type of antenna general size is
/ 2nd of wavelength, simultaneously need to add back of the body chamber to ensure antenna direction radiation, this kind of beamwidth of antenna is limited.Also there is employing standard
Electromagnetic horn or TEM loudspeaker, but size can be compared with wavelength, and overall antennas is long-pending the biggest.
Finding by literature search, number of patent application 201020599359.2, patent name is: a kind of ultra broadband curved surface TEM
Electromagnetic horn, patent publication No. CN201956462U, this antenna applications, in ultra wideband radar system, uses TEM antenna form work
Make more than bandwidth 1:10, but size is still TEM loudspeaker stock size, simultaneously because TEM two-arm Curve Machining required precision
Higher, the most sensitive to deformation.
Also finding in retrieval, Te Nigeer in 2014 et al. delivered in " science and technology and engineering " periodical the 8th phase of volume 14
" research of low-frequency compensation ultra broadband TEM electromagnetic horn and design ", by low-frequency compensation, can dare not become large-sized
Make operating frequency drop under part lower, but but it cannot be guaranteed that low frequency part realizes stable directed radiation, be unsuitable for actual spy
Ground radar system work requirements.
Summary of the invention
For defect of the prior art, it is an object of the invention to provide the broadband TEM loudspeaker of a kind of compact high directionality
Antenna.The present invention is to improve the ground exploring radar antenna in broadband, many ensureing to make it on the basis of compact in size to work in
Plant frequency range, and ensure stable directed radiation.
According to the broadband TEM electromagnetic horn of a kind of compact high directionality that the present invention provides, including the first electromagnetic horn
Single armed, the second electromagnetic horn single armed, the first floor, side, the second floor, side, compensation floor, the back side, coaxial feed port；
The upper end of the first floor, side connects the upper end of the first electromagnetic horn single armed, and the lower end on the first floor, side connects mends
Repay floor, the back side；The lower end of the first electromagnetic horn single armed connects the inner wire of coaxial feed port；
The upper end of the second floor, side connects the upper end of the second electromagnetic horn single armed, and the lower end on the second floor, side connects mends
Repay floor, the back side；The lower end of the first electromagnetic horn single armed connects the outer conductor of coaxial feed port；
The first vertical face that first floor, side, the second floor, side all include being sequentially connected with, the first horizontal face, second erect
To face, the second horizontal face, the 3rd vertical face, the 3rd horizontal face, inclined-plane；
The first horizontal face is extended in the lower end of the first vertical face to inner side；
The second vertical face is extended in the inner in the first horizontal face to upside；
The upper end of the second vertical face extends the second horizontal face laterally；
The 3rd vertical face is extended in the outer end in the second horizontal face to upside；
The 3rd horizontal face is extended in the upper end of the 3rd vertical face to inner side；
Inclined-plane is connected to the inner in the 3rd horizontal face and compensates between floor, the back side.
Preferably, it is symmetrical arranged between the first electromagnetic horn single armed, the second electromagnetic horn single armed；First floor, side,
Two side faces is symmetrical arranged between floor.
Preferably, coaxial feed port is extended through to lower section by the top compensating floor, the back side；Coaxial feed port
Outer conductor connects compensation floor, the back side.
Preferably, the first electromagnetic horn single armed, the second electromagnetic horn single armed are exponential curve in forward, lateral projection
Form.
Preferably, the first electromagnetic horn single armed at forward, lateral be projected as different exponential curve forms；
Second electromagnetic horn single armed at forward, lateral be projected as different exponential curve forms.
Preferably, the inclined-plane on the first floor, side, the inclined-plane on the second floor, side are down isosceles trapezoid, wherein, fall
The trapezoidal top margin length of waist is more than base length.
Preferably, coaxial feed port is for coaxially turning waveguide form.
Preferably, coaxial feed port is embedded in compensation floor, the back side in rounded groove, rounded groove and coaxial feed end
Gap between Kou is filled with FR4 material as Supporting Media.
Compared with prior art, the present invention has a following beneficial effect:
The present invention is because adding low-frequency compensation short circuit backboard so that antenna can be more on the premise of ensureing not increase size
Low band operation, and overall structure can be made more stable, the two-arm of TEM loudspeaker can be prevented because being produced shape by external force
Become；Low-frequency compensation circuity part concentrates on loudspeaker two-arm opening simultaneously, makes present configuration compact, and volume is little, and can guarantee that
Stable directed radiation.
Accompanying drawing explanation
By the detailed description non-limiting example made with reference to the following drawings of reading, the further feature of the present invention,
Purpose and advantage will become more apparent upon:
Fig. 1 is the forward structure schematic diagram of the broadband TEM electromagnetic horn of the compact high directionality that the present invention provides.
Fig. 2 be the compact high directionality that the present invention provides broadband TEM electromagnetic horn in the portion of falling isosceles trapezoid lateral
Structural representation.
Fig. 3 is the bowing to structural representation of the broadband TEM electromagnetic horn of the compact high directionality that the present invention provides.
Fig. 4 is present invention E face directional diagram result at 0.12GHz.
Fig. 5 is present invention E face directional diagram result at 0.6GHz.
Fig. 6 is present invention E face directional diagram result at 1.2GHz.
In figure:
101-the first electromagnetic horn single armed
102-the second electromagnetic horn single armed
Floor, 21-the first side
Floor, 22-the second side
201-the first vertical face
The horizontal face of 202-first
203-the second vertical face
The horizontal face of 204-second
205-the 3rd vertical face
The horizontal face of 206-the 3rd
207-inclined-plane
3-compensates floor, the back side
4-coaxial feed port
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in the technology of this area
Personnel are further appreciated by the present invention, but limit the present invention the most in any form.It should be pointed out that, the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, it is also possible to make some changes and improvements.These broadly fall into the present invention
Protection domain.
The invention provides the broadband TEM electromagnetic horn of a kind of compact high directionality, including: TEM electromagnetic horn and feedback
Electricity port.Described TEM electromagnetic horn includes the short-circuit backboard of TEM antenna two-arm and low-frequency compensation, the inner core of feed port and
Outer conductor two-arm with TEM loudspeaker respectively is connected.Present configuration is simple, and cost of manufacture is low, energy on the premise of ensureing size
Enough realize the widest working frequency range and stable directed radiation, it is possible to meet the GPR demand under different condition and system
The demand of miniaturization, has a extensive future.
As shown in Figure 1, Figure 2, Figure 3 shows, be shown respectively orthogonal forward, lateral, bow to structural representation.According to this
The broadband TEM electromagnetic horn of a kind of compact high directionality that invention provides, including first electromagnetic horn single armed the 101, second loudspeaker
The 21, second floor, side 22, antenna single armed the 102, first floor, side, compensation floor, the back side 3, coaxial feed port 4.
The upper end of the first floor, side 601 connects the upper end of the first electromagnetic horn single armed 101, the first floor, side 601
Lower end connects compensation floor, the back side 2；The lower end of the first electromagnetic horn single armed 101 connects the inner wire of coaxial feed port 5；Second
The upper end on floor, side 602 connects the upper end of the second electromagnetic horn single armed 102, and the lower end on the second floor, side 602 connects compensation
Floor, the back side 2；The lower end of the first electromagnetic horn single armed 101 connects the outer conductor of coaxial feed port 5；
First the 21, second floor, side 22, floor, side all includes the first horizontal face of vertical face 201, first being sequentially connected with
202, the second horizontal face 206 of vertical face the 205, the 3rd, vertical face 203, second horizontal face the 204, the 3rd, inclined-plane 207.First is vertical
Vertical face the 205, the 3rd horizontal face 206,202, second vertical face the 203, second horizontal face the 204, the 3rd, horizontal face, face 201, first structure
Become roundabout broken line part；Inclined-plane 207 constitutes the part of falling isosceles trapezoid, as in figure 2 it is shown, for ensureing directional diagram directionality, above go to the bottom
Size difference is not the biggest.
The first horizontal face 202 is extended in the lower end of the first vertical face 201 to inner side；The inner in the first horizontal face 202 is upwards
The second vertical face 203 is extended in side；The upper end of the second vertical face 203 extends the second horizontal face 204 laterally；Second horizontal face
The 3rd vertical face 205 is extended in the outer end of 204 to upside；The 3rd horizontal face is extended in the upper end of the 3rd vertical face 205 to inner side
206；Inclined-plane 207 is connected to the inner in the 3rd horizontal face 206 and compensates between floor, the back side 3.
It is symmetrical arranged between first electromagnetic horn single armed the 101, second electromagnetic horn single armed 102；First floor, side 601,
It is symmetrical arranged between second floor, side 602.Coaxial feed port 5 is extended through to lower section by the top compensating floor, the back side 2；
The outer conductor of coaxial feed port 5 connects compensation floor, the back side 2.First electromagnetic horn single armed the 101, second electromagnetic horn single armed
102 are exponential curve form in forward, lateral projection, and the first electromagnetic horn single armed 101 is in forward, lateral projection
For different exponential curve forms, the second electromagnetic horn single armed 102 at forward, lateral be projected as different exponential curve shapes
Formula.
The inclined-plane 207 on 207, second floor, side 602, inclined-plane of the first floor, side 601 is down isosceles trapezoid, wherein,
The top margin length of isosceles trapezoid is more than base length.Coaxial feed port 5 is for coaxially turning waveguide form.Coaxial feed port 5
Being embedded in compensation floor, the back side 2 in rounded groove, the gap between rounded groove and coaxial feed port 5 is filled with FR4
Material is as Supporting Media.
Middle impedance mapping mode of the present invention is to change to free space 377 Ω from 50 Ω of coaxial line, and variation is taked
Exponential curve form, the impedance transformation being is gradual change and not mutated.This low-frequency compensation TEM electromagnetic horn finally realizes carrying a width of:
0.12-1.8GHz, simultaneously in working frequency range, particularly low frequency, it is achieved stable directed radiation.In lowest frequency 120MHz, with
And the E face directional diagram at 0.6GHz and 1.2GHz is as Figure 4-Figure 6.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or revise, this not shadow
Ring the flesh and blood of the present invention.In the case of not conflicting, the feature in embodiments herein and embodiment can any phase
Combination mutually.
Claims (9)
1. the broadband TEM electromagnetic horn of a compact high directionality, it is characterised in that include the first electromagnetic horn single armed
(101), the second electromagnetic horn single armed (102), the first floor, side (21), the second floor, side (22), compensation floor, the back side
(3), coaxial feed port (4)；
The upper end of the first floor, side (601) connects the upper end of the first electromagnetic horn single armed (101), the first floor, side (601)
Lower end connect compensate floor, the back side (2)；The lower end of the first electromagnetic horn single armed (101) connects the interior of coaxial feed port (5)
Conductor；
The upper end of the second floor, side (602) connects the upper end of the second electromagnetic horn single armed (102), the second floor, side (602)
Lower end connect compensate floor, the back side (2)；The lower end of the first electromagnetic horn single armed (101) connects outside coaxial feed port (5)
Conductor；
The first vertical face (201) that first floor, side (21), the second floor, side (22) all include being sequentially connected with, first horizontal
Face (202), the second vertical face (203), the second horizontal face (204), the 3rd vertical face (205), the 3rd horizontal face (206), inclined-plane
(207)；
The first horizontal face (202) is extended in the lower end of the first vertical face (201) to inner side；
The second vertical face (203) is extended in the inner of first horizontal face (202) to upside；
The upper end of the second vertical face (203) extends the second horizontal face (204) laterally；
The 3rd vertical face (205) is extended in the outer end of the second horizontal face (204) to upside；
The 3rd horizontal face (206) is extended in the upper end of the 3rd vertical face (205) to inner side；
Inclined-plane (207) is connected to the inner of the 3rd horizontal face (206) and compensates between floor, the back side (3).
The broadband TEM electromagnetic horn of compact high directionality the most according to claim 1, it is characterised in that the first loudspeaker
It is symmetrical arranged between antenna single armed (101), the second electromagnetic horn single armed (102)；First floor, side (601), second laterally
Plate is symmetrical arranged between (602).
The broadband TEM electromagnetic horn of compact high directionality the most according to claim 1, it is characterised in that coaxial feed
Port (5) is extended through to lower section by the top compensating floor, the back side (2)；The outer conductor of coaxial feed port (5) connects compensation
Floor, the back side (2).
The broadband TEM electromagnetic horn of compact high directionality the most according to claim 1, it is characterised in that the first loudspeaker
Antenna single armed (101), the second electromagnetic horn single armed (102) are exponential curve form in forward, lateral projection.
The broadband TEM electromagnetic horn of compact high directionality the most according to claim 1, it is characterised in that
First electromagnetic horn single armed (101) at forward, lateral be projected as different exponential curve forms；
Second electromagnetic horn single armed (102) at forward, lateral be projected as different exponential curve forms.
The broadband TEM electromagnetic horn of compact high directionality the most according to claim 2, it is characterised in that the first side
The inclined-plane (207) on floor (601), the inclined-plane (207) on the second floor, side (602) are down isosceles trapezoid, wherein, and the ladder of falling isosceles
The top margin length of shape is more than base length.
The broadband TEM electromagnetic horn of compact high directionality the most according to claim 1, it is characterised in that first medium
(401), the material that second medium (402) uses be relative dielectric constant be the FR4 of 4.3.
The broadband TEM electromagnetic horn of compact high directionality the most according to claim 1, it is characterised in that coaxial feed
Port (5) is for coaxially turning waveguide form.
The broadband TEM electromagnetic horn of compact high directionality the most according to claim 1, it is characterised in that coaxial feed
Port (5) is embedded in compensation floor, the back side (2) in rounded groove, the space part between rounded groove and coaxial feed port (5)
Divide and be filled with FR4 material as Supporting Media.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610642982.3A CN106299709B (en) | 2016-08-08 | 2016-08-08 | The broadband TEM electromagnetic horn of compact high directionality |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610642982.3A CN106299709B (en) | 2016-08-08 | 2016-08-08 | The broadband TEM electromagnetic horn of compact high directionality |
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| Publication Number | Publication Date |
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| CN106299709A true CN106299709A (en) | 2017-01-04 |
| CN106299709B CN106299709B (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610642982.3A Active CN106299709B (en) | 2016-08-08 | 2016-08-08 | The broadband TEM electromagnetic horn of compact high directionality |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666744A (en) * | 2018-04-20 | 2018-10-16 | 摩比天线技术（深圳）有限公司 | A kind of broadband electromagnetic horn |
| CN109324245A (en) * | 2018-09-27 | 2019-02-12 | 西北核技术研究所 | A kind of packaged type electromagnetic impulse radiation wave simulation device based on TEM loudspeaker |
| CN109980337A (en) * | 2019-04-04 | 2019-07-05 | 徐炯� | A kind of low-frequency small-sized M shape ultra-wideband antenna |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201956462U (en) * | 2010-11-10 | 2011-08-31 | 中国电子科技集团公司第十四研究所 | UWB curved TEM horn |
| CN104218322A (en) * | 2014-08-15 | 2014-12-17 | 中国人民解放军63655部队 | Receiving antenna for high-power microwave radiation field measuring system |
-
2016
- 2016-08-08 CN CN201610642982.3A patent/CN106299709B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201956462U (en) * | 2010-11-10 | 2011-08-31 | 中国电子科技集团公司第十四研究所 | UWB curved TEM horn |
| CN104218322A (en) * | 2014-08-15 | 2014-12-17 | 中国人民解放军63655部队 | Receiving antenna for high-power microwave radiation field measuring system |
Non-Patent Citations (4)
| Title |
|---|
| AHMED ABBAS H: "Study About TEM Horn Size Reduction for Ultra-Wideband Radar Application", 《PROCEEDINGS OF THE 6TH GERMAN MICROWAVE CONFERENCE》 * |
| ALI MEHRDADIAN: "Design of a Combined Antenna for Ultra Wide-Band High-Power Applications", 《6"TH INTERNATIONAL SYMPOSIUM ON TELECOMMUNICATIONS》 * |
| 张扬: "变阻抗TEM 喇叭天线设计中末端端口阻抗问题的研究", 《现代电子技术》 * |
| 朱四桃: "TEM喇叭天线末端加载设计及实验", 《现代应用物理》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666744A (en) * | 2018-04-20 | 2018-10-16 | 摩比天线技术（深圳）有限公司 | A kind of broadband electromagnetic horn |
| CN108666744B (en) * | 2018-04-20 | 2024-05-28 | 摩比天线技术（深圳）有限公司 | Broadband horn antenna |
| CN109324245A (en) * | 2018-09-27 | 2019-02-12 | 西北核技术研究所 | A kind of packaged type electromagnetic impulse radiation wave simulation device based on TEM loudspeaker |
| CN109324245B (en) * | 2018-09-27 | 2021-01-05 | 西北核技术研究所 | Movable electromagnetic pulse radiation wave simulator based on TEM horn |
| CN109980337A (en) * | 2019-04-04 | 2019-07-05 | 徐炯� | A kind of low-frequency small-sized M shape ultra-wideband antenna |
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| Publication number | Publication date |
|---|---|
| CN106299709B (en) | 2019-05-24 |
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