CN110233325A - The sub- slot antenna manufacture of substrates of bowtie dipole and the sub- slot antenna of bowtie dipole - Google Patents
The sub- slot antenna manufacture of substrates of bowtie dipole and the sub- slot antenna of bowtie dipole Download PDFInfo
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- CN110233325A CN110233325A CN201910444372.6A CN201910444372A CN110233325A CN 110233325 A CN110233325 A CN 110233325A CN 201910444372 A CN201910444372 A CN 201910444372A CN 110233325 A CN110233325 A CN 110233325A
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- bowtie dipole
- slot antenna
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- dipole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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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
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
-
- 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
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
- H01Q1/368—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor using carbon or carbon composite
-
- 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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/526—Electromagnetic shields
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
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- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
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- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The present invention relates to a kind of radio frequencies and Geophysical technique field, it is a kind of sub- slot antenna manufacture of substrates of bowtie dipole and the sub- slot antenna of bowtie dipole, the former is the following steps are included: obtain plane bowtie dipole sub-antenna substrate, and wherein plane bowtie dipole sub-antenna includes first part and the second part of bilateral symmetry distribution；Gap processing is carried out to plane bowtie dipole sub-antenna substrate；Absorbing medium is filled in each arc groove and forms the sub- slot antenna substrate of bowtie dipole, and wherein absorbing medium includes carbon slurry, ferrite magnetic material and nano-silver powder.The present invention is in such a way that gap loads, electromagnetic wave conduct by the absorbing medium in arc groove and gradually gently be absorbed in antenna surface traveling process, increase the traveling wave performance of antenna, keep frequency band internal antenna impedance variations slow, it is matched conducive to transmitter, receiver, so that finally formed ground penetrating radar system hangover oscillation is small, it is conducive to data and explains.
Description
Technical field
The present invention relates to a kind of radio frequencies and Geophysical technique field, are a kind of sub- slot antenna substrate manufactures of bowtie dipole
Method and the sub- slot antenna of bowtie dipole.
Background technique
Ground Penetrating Radar is used as a kind of effective lossless detection means more and more application project physical prospectings field
Range is more and more wider.With the use of Ground Penetrating Radar and the development of technology, ground exploring radar antenna is also towards broader frequency band, more preferably
Medium matching, many-sided development such as bigger efficiency, smaller volume.Traditional resistance end load or substep resistor loaded
Although the antenna of formation can satisfy the bandwidth that antenna uses by load, there are inefficiency, bandwidth internal resistances for antenna system
Anti- flatness is bad, and Antenna+Transmitter, receiver matching performance are poor, in actual detection, due to resistance end load and
Phenomena such as inhomogeneities of substep load, the hangover of ground penetrating radar system, oscillation, ring, is serious, these factors seriously constrain
The use and data processing of Ground Penetrating Radar, constrain the development of ground penetrating radar exploration.
Summary of the invention
The present invention provides a kind of sub- slot antenna manufacture of substrates of bowtie dipole and the sub- slot antenna of bowtie dipole, gram
The deficiency for having taken the above-mentioned prior art can effectively solve existing for the traditional load of resistance end or substep resistor loaded antenna
Traveling wave performance is poor, is unfavorable for the problem of matching with transmitter, receiver.
Technical solution of the present invention first is that being realized by following measures: a kind of sub- slot antenna substrate of bowtie dipole
Manufacturing method, comprising the following steps:
Plane bowtie dipole sub-antenna substrate is obtained, wherein plane bowtie dipole sub-antenna includes the of bilateral symmetry distribution
The length of a part and second part, first part and second part is L；
Gap processing is carried out to plane bowtie dipole sub-antenna substrate, i.e., over the first portion using its feeding point as the center of circle,
Respectively withL-l is that radius opens up arc groove, wherein the width of each arc groove is l, each arc
The length of slot is respective radiusThe depth of each arc groove is d, and second part is identical as first part's structure；
Absorbing medium is filled in each arc groove and forms the sub- slot antenna substrate of bowtie dipole, and wherein absorbing medium includes
Carbon slurry, ferrite magnetic material and nano-silver powder.
Here is the further optimization and/or improvements to invention technology described above scheme:
The outer edge of above-mentioned first part can be using first part's feeding point as the center of circle, using the long L of first part as radius
Circular arc, make the perpendicular bisector of L, first part is divided into left halfbody and right halfbody by perpendicular bisector, is become to left halfbody
Shape intersects the upper edge of left halfbody and lower edge a bit with perpendicular bisector and right halfbody respectively, and the top of left halfbody
Edge and lower edge are parallel with L respectively, and second part is identical as first part's bilateral symmetry distribution and structure.
The length of above-mentioned first part can be the length of left halfbody and the sum of the length of right halfbody, as L=L1+L2, whereinλmFor the central wavelength of antenna.
The angle R of above-mentioned first part and second part can be 60 degree, first part's feeding point and second part feed
Spacing between point can be 4 millimeters.
The thickness of above-mentioned plane bowtie dipole sub-antenna substrate can be greater than 2.5 millimeters.
Above-mentioned absorbing medium may include carbon slurry, ferrite magnetic material and nano-silver powder, and its ratio be carbon slurry 73%, iron oxygen
Body magnetic powder 14%, nano-silver powder 13%.
Above-mentioned absorbing medium of filling in each arc groove forms the sub- slot antenna substrate of bowtie dipole, can pass through after drying
Vector network analyzer is tested, and test forms the sub- slot antenna substrate of final bowtie dipole after passing through.
Technical solution of the present invention second is that being realized by following measures: a kind of sub- slot antenna of bowtie dipole, packet
Include bowtie dipole described in any one of support member, hollow and upper end opening metal shielding and the claims 1 to 7
The sub- slot antenna substrate of bowtie dipole of sub- slot antenna manufacture of substrates manufacture is equipped with metal at the middle part of metal shielding
Metal shielding inner cavity is divided into left chamber and right chamber by partition, metal partion (metp), is equipped with support member, branch at the middle part of left chamber
Support lower is installed together with metal partion (metp) bottom, and the sub- slot antenna substrate of bowtie dipole is equipped at the top of support member,
And the sub- slot antenna substrate of bowtie dipole is installed together with metal shielding upper end, in the left chamber on the outside of corresponding support member
Filled with absorbing material, right chamber is identical with the structure of left chamber.
Here is the further optimization and/or improvements to invention technology described above scheme:
Above-mentioned support member can be nylon support member, and nylon support member is in the form of a column hollow structure.
Above-mentioned absorbing material can be flexible sponge absorbing material.
The present invention fills absorbing medium and forms butterfly idol by opening up arc groove in plane bowtie dipole sub-antenna substrate
Extremely sub- slot antenna substrate, compared to the load of traditional resistor end and substep loaded antenna, the side that the present invention is loaded by gap
Formula, electromagnetic wave conduct by the absorbing medium in arc groove and gradually gently be absorbed, increase in antenna surface traveling process
The traveling wave performance for having added antenna keeps frequency band internal antenna impedance variations slow, is conducive to and transmitter, receiver match, so that finally
The ground penetrating radar system hangover oscillation of formation is small, and antenna efficiency is high, is conducive to data and explains.
Detailed description of the invention
Attached drawing 1 is the flow chart of the embodiment of the present invention 1.
Attached drawing 2 is the floor map of plane bowtie dipole sub-antenna substrate in the embodiment of the present invention 1.
Attached drawing 3 is the floor map of the sub- slot antenna substrate of bowtie dipole in the embodiment of the present invention 1.
Attached drawing 4 is the overlooking structure diagram of the sub- slot antenna of 2 bowtie dipole of the embodiment of the present invention.
Attached drawing 5 is the schematic cross-sectional view of A-A in attached drawing 4.
Coding in attached drawing is respectively as follows: 1 for plane bowtie dipole sub-antenna substrate, and 2 be first part, and 3 be second part,
4 be feeding point, and 5 be arc groove, and 6 be metal shielding, and 7 be support member, and 8 be metal partion (metp), and 9 be the sub- gap day of bowtie dipole
Line substrate, 10 be absorbing material, and 11 be screw.
Specific embodiment
The present invention is not limited by the following examples, can determine according to the technique and scheme of the present invention with actual conditions specific
Embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to Figure of description
5 Butut mode is described, such as: front, rear, top, and bottom, left and right positional relationship be the cloth according to Figure of description
Figure direction determines.
Below with reference to examples and drawings, the invention will be further described:
Embodiment 1: as shown in attached drawing 1,2,3, the sub- slot antenna manufacture of substrates of the bowtie dipole, including following step
It is rapid:
S1 obtains plane bowtie dipole sub-antenna substrate 1, and wherein plane bowtie dipole sub-antenna includes that bilateral symmetry is distributed
First part 2 and second part 3, the length of first part 2 and second part 3 is L；
S2 carries out gap processing to plane bowtie dipole sub-antenna substrate 1, i.e., is with its feeding point 4 in first part 2
The center of circle, respectively withL-l is that radius opens up arc groove 5, wherein the width of each arc groove 5 is l, often
The length of a arc groove 5 is respective radiusThe depth of each arc groove 5 is d, second part 3 and 2 structure of first part
It is identical；
S3 fills absorbing medium in each arc groove 5 and forms the sub- slot antenna substrate 9 of bowtie dipole, is situated between wherein absorbing
Matter includes carbon slurry, ferrite magnetic material and nano-silver powder.
Above-mentioned plane bowtie dipole sub-antenna substrate 1 is existing well-known technique, and plane bowtie dipole sub-antenna substrate 1 can be adopted
It is process with RF-4 polyfluortetraethylene plate, the plane bowtie dipole sub-antenna on plane bowtie dipole sub-antenna substrate 1 is deposited
The thickness of copper circuit, plane bowtie dipole sub-antenna substrate 1 is set according to actual needs, and the present invention can be greater than 2.5 millimeters, is such as schemed
The sub-antenna of plane bowtie dipole shown in 1 substrate 1 includes first part 2 and the second part 3 of bilateral symmetry distribution, first part 2
Angle R with second part 3 can be 60 degree, and the spacing between 3 feeding point 4 of 2 feeding point 4 of first part and second part can
It is 4 millimeters.
The present invention is in first part 2 with its feedback when carrying out gap processing to plane bowtie dipole sub-antenna substrate 1
Electricity point 4 be the center of circle, respectively withL-l is that radius opens up arc groove 5, and second part 3 and first part 2 are left
Right symmetrical and structure is identical；Here outermost arc groove 5 is opened up by radius of L-l, can guarantee open up it is complete outermost
Side arc groove 5；The width l of each arc groove 5 is set according to actual conditions, and can be 3 millimeters, the length of each arc groove 5 is pair
Answer radiusThe depth d of each arc groove 5, is set according to actual conditions, and can be 1.5 millimeters.
The present invention fills absorbing medium and forms butterfly by opening up arc groove 5 in plane bowtie dipole sub-antenna substrate 1
Dipole slot antenna substrate 9 is loaded compared to the load of traditional resistor end and substep loaded antenna, the present invention by gap
Mode, electromagnetic wave conduct by the absorbing medium in arc groove 5 and gradually gently be absorbed in antenna surface traveling process,
The traveling wave performance for increasing antenna keeps frequency band internal antenna impedance variations slow, is conducive to and transmitter, receiver match, so that most
End form at ground penetrating radar system hangover oscillation it is small, antenna efficiency is high, is conducive to data and explains.
Here is the further optimization and/or improvements to invention technology described above scheme:
As shown in attached drawing 1,2,3, it is the center of circle that the outer edge of the first part 2, which is with 2 feeding point 4 of first part, with the
The long L of a part 2 is the circular arc of radius, makees the perpendicular bisector of L, perpendicular bisector divides first part 2 for left halfbody and the right side
Halfbody deforms left halfbody, intersects the upper edge of left halfbody and lower edge with perpendicular bisector and right halfbody respectively
A bit, and the upper edge of left halfbody and lower edge are parallel with L respectively, second part 3 and first part 2 be symmetrically distributed and
Structure is identical.
Here the outer edge of first part 2 and second part 3 uses cambered design, is avoided that current break.Simultaneously to the
The left halfbody of a part 2 and the right halfbody of second part 3 carry out deformation design, can reduce the size of antenna.
As shown in attached drawing 1,3, the length of a length of left halfbody of the first part 2 and the sum of the length of right halfbody, as L=
L1+L2, whereinλmFor the central wavelength of antenna.
As shown in attached drawing 1,3, the absorbing medium includes carbon slurry, ferrite magnetic material and nano-silver powder, its ratio be
Carbon slurry 73%, ferromagnetic oxide powder 14%, nano-silver powder 13%.Wherein ten ink conduction CH- of JELCON Japan can be used in carbon slurry
8 (MOD2) conductive carbon pastes.
As shown in Fig. 1, absorbing medium is filled in each arc groove 5 and form the sub- slot antenna substrate 9 of bowtie dipole, dry in the air
It is tested after dry by vector network analyzer, test forms the sub- slot antenna substrate 9 of final bowtie dipole after passing through.
Embodiment 2: as shown in attached drawing 3,4,5, the sub- slot antenna of the bowtie dipole, including support member 7, hollow and upper end
The sub- slot antenna substrate 9 of the metal shielding 6 and bowtie dipole of opening is equipped with metal partion (metp) 8 at the middle part of metal shielding 6,
6 inner cavity of metal shielding is divided into left chamber and right chamber by metal partion (metp) 8, is equipped with support member 7, support at the middle part of left chamber
7 lower end of component is installed together with 8 bottom of metal partion (metp), and the sub- slot antenna substrate of bowtie dipole is equipped at the top of support member 7
9, and the sub- slot antenna substrate 9 of bowtie dipole is installed together with 6 upper end of metal shielding, the left side in corresponding 7 outside of support member
Absorbing material 10 is filled in chamber, right chamber is identical with the structure of left chamber.
6 inner cavity of metal shielding is divided into left chamber and right chamber by above-mentioned metal partion (metp) 8, in the branch of left chamber and right chamber
It is respectively equipped with the sub- slot antenna substrate 9 of bowtie dipole at the top of support part part 7, makes one as transmitting antenna, one as reception
Antenna.
Above-mentioned support member 7 and metal shielding 6 can flush, while fill out in the left chamber in corresponding 7 outside of support member
When filling wave material 10, it also can guarantee that absorbing material 10 is flushed with metal shielding 6, to guarantee antenna after the assembly is completed not
Biggish deformation occurs.Between above-mentioned support member 7 and metal shielding 6, the sub- slot antenna substrate 9 of bowtie dipole and metal screen
Covering can be fixed between shell 6 by screw 11, to guarantee the stability of the sub- slot antenna substrate 9 of bowtie dipole.
Glass fiber reinforced plastic flange can be selected in above-mentioned support member 7.
Here is the further optimization and/or improvements to invention technology described above scheme:
As needed, the support member 7 is nylon support member, and nylon support member is in the form of a column hollow structure.
As needed, the absorbing material 10 is flexible sponge absorbing material.
The above technical characteristic constitutes highly preferred embodiment of the present invention, with stronger adaptability and best implementation effect
Fruit can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Claims (10)
1. a kind of sub- slot antenna manufacture of substrates of bowtie dipole, which comprises the following steps:
Plane bowtie dipole sub-antenna substrate is obtained, wherein plane bowtie dipole sub-antenna includes first of bilateral symmetry distribution
Point and second part, the length of first part and second part is L；
Gap processing is carried out to plane bowtie dipole sub-antenna substrate, i.e., over the first portion using its feeding point as the center of circle, respectively
WithL-l is that radius opens up arc groove, wherein the width of each arc groove is l, each arc groove
Length is respective radiusThe depth of each arc groove is d, and second part is identical as first part's structure；
Absorbing medium is filled in each arc groove and forms the sub- slot antenna substrate of bowtie dipole, and wherein absorbing medium includes carbon
Slurry, ferrite magnetic material and nano-silver powder.
2. the sub- slot antenna manufacture of substrates of bowtie dipole according to claim 1, which is characterized in that described first
The outer edge divided is, using the long L of first part as the circular arc of radius, to make vertically dividing equally for L using first part's feeding point as the center of circle
First part is divided into left halfbody and right halfbody by line, perpendicular bisector, is deformed to left halfbody, make left halfbody upper edge and
Lower edge intersects a bit with perpendicular bisector and right halfbody respectively, and the upper edge of left halfbody and lower edge are equal with L respectively
Row, second part are identical as first part's bilateral symmetry distribution and structure.
3. the sub- slot antenna manufacture of substrates of bowtie dipole according to claim 2, which is characterized in that described first
The length of a length of left halfbody divided and the sum of the length of right halfbody, as L=L1+L2, whereinλmFor the center of antenna
Wavelength.
4. the sub- slot antenna manufacture of substrates of bowtie dipole according to claim 1, which is characterized in that described first
Divide and the angle R of second part is 60 degree, the spacing between first part's feeding point and second part feeding point is 4 millimeters.
5. the sub- slot antenna manufacture of substrates of bowtie dipole according to claim 1, which is characterized in that the plane butterfly
The thickness of shape dipole antenna substrate is greater than 2.5 millimeters.
6. the sub- slot antenna manufacture of substrates of bowtie dipole described according to claim 1 or 2 or 3 or 4 or 5, feature exist
In the absorbing medium includes carbon slurry, ferrite magnetic material and nano-silver powder, and its ratio be carbon slurry 73%, ferromagnetic oxide powders
14%, nano-silver powder 13%.
7. the sub- slot antenna manufacture of substrates of bowtie dipole described according to claim 1 or 2 or 3 or 4 or 5, feature exist
In filling absorbing medium forms the sub- slot antenna substrate of bowtie dipole in each arc groove, passes through vector network point after drying
Analyzer is tested, and test forms the sub- slot antenna substrate of final bowtie dipole after passing through.
8. a kind of sub- slot antenna of bowtie dipole, which is characterized in that including support member, hollow and upper end opening metallic shield
The butterfly of the sub- slot antenna manufacture of substrates manufacture of bowtie dipole described in any one of shell and the claims 1 to 7 is even
Extremely sub- slot antenna substrate is equipped with metal partion (metp) at the middle part of metal shielding, and metal shielding inner cavity is divided by metal partion (metp)
Left chamber and right chamber are equipped with support member at the middle part of left chamber, and support member lower end and metal partion (metp) bottom are mounted on one
It rises, the sub- slot antenna substrate of bowtie dipole, and the sub- slot antenna substrate of bowtie dipole and metal screen is equipped at the top of support member
Shell upper end is covered to be installed together, filled with absorbing material in the left chamber on the outside of corresponding support member, right chamber and left chamber
Structure is identical.
9. the sub- slot antenna of bowtie dipole according to claim 8, which is characterized in that the support member is nylon support
Component, nylon support member are in the form of a column hollow structure.
10. the sub- slot antenna of bowtie dipole according to claim 8 or claim 9, which is characterized in that the absorbing material is flexibility
Sponge absorbing material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910444372.6A CN110233325B (en) | 2019-05-27 | 2019-05-27 | Butterfly dipole slot antenna substrate manufacturing method and butterfly dipole slot antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910444372.6A CN110233325B (en) | 2019-05-27 | 2019-05-27 | Butterfly dipole slot antenna substrate manufacturing method and butterfly dipole slot antenna |
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| CN110233325A true CN110233325A (en) | 2019-09-13 |
| CN110233325B CN110233325B (en) | 2021-07-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116995434A (en) * | 2023-08-22 | 2023-11-03 | 中铁隧道局集团有限公司 | Ultra-wideband antenna of ground penetrating radar |
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| CN110233325B (en) | 2021-07-16 |
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