CN105896068A - Three-polarization semi-slot antenna with coplanar waveguide feed metal via hole step impedance - Google Patents
Three-polarization semi-slot antenna with coplanar waveguide feed metal via hole step impedance Download PDFInfo
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- CN105896068A CN105896068A CN201610219437.3A CN201610219437A CN105896068A CN 105896068 A CN105896068 A CN 105896068A CN 201610219437 A CN201610219437 A CN 201610219437A CN 105896068 A CN105896068 A CN 105896068A
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- rabbet joint
- line
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- frequency
- low
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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
- H01Q1/38—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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- 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
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
-
- 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
- H01Q5/10—Resonant antennas
-
- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
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Abstract
The invention discloses a three-polarization semi-slot antenna with coplanar waveguide feed metal via hole step impedance, which relates to a slot antenna. The antenna is composed of three single-polarization antennas (13) placed vertically mutually. Each antenna (13) comprises a dielectric substrate (1), a metal ground (2) and a radiation slot (3) on the dielectric substrate (1) and a coplanar waveguide feed line (4), wherein the metal ground (2) is provided with the radiation slot (3); one end of the radiation slot (3) is short-circuited and the other end (6) is open-circuited; the part, close to the open-circuited end, of the radiation slot (3) is provided with an array of two rows of metal via holes (7) to form a low-impedance slot (8); the rest part of the radiation slot (3) is a high-impedance slot (9); an outer conductor (5) of the coplanar waveguide feed line (4) is connected with the metal ground (2), and the tail inner conductor (12) passes across the high-impedance slot (9) to be connected with the metal ground (2) at the edge (11). The antenna works under multiple frequency bands, the antenna size, cross polarization, and shielding are reduced, and isolation is improved.
Description
Technical field
The present invention relates to a kind of slot antenna, the three of a kind of coplanar wave guide feedback metallic vias Stepped Impedance
Polarize half slot antenna.
Background technology
Slot antenna is the antithesis antenna of element antenna, has a wide range of applications.But, common slot antenna
Not only the length of the radiation line of rabbet joint itself to have 1/2nd wavelength, and radiate and also need to bigger gold around the line of rabbet joint
Possession area, length 1/2nd wavelength bigger than the length of the line of rabbet joint on usual metal ground, the width ratio groove on metal ground
Big 1/2nd wavelength of width of seam.Multipolarization MIMO can effectively improve spectrum efficiency and channel capacity,
In order to MIMO technology being may apply to the terminal that volume is little, need co-located for the most like-polarized antenna placement.
Bigger metal ground can produce occlusion effect to the radiation of antenna so that it is many that slot antenna is not suitable for co-located multi input
Output (MIMO) application, when using in particular as multi-polarization antenna, big metal ground will cause antenna
Isolation between cross polarization variation, antenna port is deteriorated, and these all will cause spectrum efficiency and channel capacity
Decline.The impedance of the line of rabbet joint simultaneously is very big, and the impedance matching also making slot antenna feeding transmission line is relatively difficult.
The development of modern communications simultaneously also requires that antenna can regulate respectively with multiband operation and two frequency bands.
Summary of the invention
Technical problem: the purpose of the present invention is to propose to three poles of a kind of coplanar wave guide feedback metallic vias Stepped Impedance
Changing half slot antenna, this antenna has been possible not only to multiple working band, and multiple frequency band can regulate respectively；Should
Antenna can reduce the radiation length of the line of rabbet joint and the area on metal ground, and have suppression cross polarization, improve every
From, reduce the effect blocked.
Technical scheme: three polarization half slot antennas of the coplanar wave guide feedback metallic vias Stepped Impedance of the present invention include
Three metallic vias Stepped Impedance antennas being mutually perpendicular to the single polarization placed；The metallic vias rank of each single polarization
The metal that the impedance antenna that jumps includes medium substrate, be arranged on medium substrate and the radiation line of rabbet joint, co-planar waveguide feedback
Line；The one side of medium substrate be metal and coplanar waveguide feeder line, the ground plane of coplanar waveguide feeder line is exactly metal
Ground；Metal has the radiation line of rabbet joint on the ground, and the shape of the radiation line of rabbet joint is rectangle, and the radiation line of rabbet joint is positioned at the center on metal ground；
The short at one end of the radiation line of rabbet joint, the other end is opened a way；Radiating the line of rabbet joint part near open end, the two of its line of rabbet joint
Individual edge, has two rows to metallize arrays of vias so that the radiation line of rabbet joint becomes near the characteristic impedance of the part of open end
Low, form the low-resistance line of rabbet joint；The remainder of the radiation line of rabbet joint is the high resistant line of rabbet joint, and the high resistant line of rabbet joint is together with the low-resistance line of rabbet joint
Constitute the Stepped Impedance radiation line of rabbet joint, produce a relatively low low frequency operation frequency band of frequency and the higher height of a frequency
Frequently working band；Metallization via pass through medium substrate, one with metal be connected, other end is at medium substrate
Another side；One end of coplanar waveguide feeder line is the port of antenna, and the conductor of the coplanar waveguide feeder line other end strides across
The high resistant line of rabbet joint, at the edge of the high resistant line of rabbet joint, with metal be connected.
Change the thickness of medium substrate, magnetic conductivity and dielectric constant, thus it is possible to vary the high resistant line of rabbet joint and the low-resistance line of rabbet joint
Characteristic impedance, changes the height impedance ratio of the Stepped Impedance radiation line of rabbet joint, and then changes the low frequency operation frequency band of antenna
Operating frequency and the operating frequency of high-frequency work frequency band.
Change the length of the low-resistance line of rabbet joint, low-resistance line of rabbet joint position in the radiation line of rabbet joint, the radiation line of rabbet joint can be regulated
Electrical length, to realize antenna miniaturization in various degree, it is also possible to change the work of the low frequency operation frequency band of antenna
Frequency and the operating frequency of high-frequency work frequency band.
In metallization arrays of vias, change the spacing of adjacent metal via, the characteristic of the low-resistance line of rabbet joint can be regulated
Impedance, changes the height impedance ratio of the Stepped Impedance radiation line of rabbet joint, and then changes the work of the low frequency operation frequency band of antenna
Working frequency and the operating frequency of high-frequency work frequency band.
Change the width of the radiation line of rabbet joint, the low-resistance line of rabbet joint and the characteristic impedance of the high resistant line of rabbet joint can be regulated, change step
The height impedance ratio of the impedance radiation line of rabbet joint, and then change operating frequency and the high frequency work of the low frequency operation frequency band of antenna
Make the operating frequency of frequency band.
In metallization arrays of vias, the spacing of adjacent metal via is less than 1/10th wavelength.
The work of the low frequency operation frequency band of three polarization half slot antennas of coplanar wave guide feedback metallic vias Stepped Impedance
The operating frequency of frequency and high-frequency work frequency band is mainly determined by the resonant frequency of the radiation line of rabbet joint, but metal ground
The position that size, coplanar waveguide feeder line conductor are connected with the radiation line of rabbet joint can also be to the operating frequency of antenna and coupling
Degree is adjusted.Owing to the radiation line of rabbet joint existing low-resistance line of rabbet joint has again the high resistant line of rabbet joint, constitute the spoke of Stepped Impedance
Penetrate the line of rabbet joint, not only make antenna miniaturization, reduce cross polarization, also reduce metal ground size, change
Kind isolation and occlusion effect with reducing metal, but also so that antenna has multiple working band, and
Change the low-resistance line of rabbet joint and the relative length of the high resistant line of rabbet joint and impedance, the position of two working bands can be adjusted respectively.
Owing to the radiation line of rabbet joint 3 is quarter-wave resonance structure, than 1/2nd wavelength of usual two terminal shortcircuits
Radiation slot length is half as large, and therefore the overall dimensions of antenna reduces the most accordingly, and occlusion effect reduces further.
Beneficial effect: having of three polarization half slot antennas of the coplanar wave guide feedback metallic vias Stepped Impedance of the present invention
Benefit effect is, this antenna can reduce the electric size of whole antenna, realize miniaturization, and this antenna not only may be used simultaneously
There to be multiple frequency band, and multiple frequency band can regulate respectively, also has the suppression cross polarization of antenna, improvement
Isolate between port, and reduce the effect blocked on metal ground.
Accompanying drawing explanation
Fig. 1 is three polarization half slot antenna overall structure schematic diagrames of coplanar wave guide feedback metallic vias Stepped Impedance.
Fig. 2 be coplanar wave guide feedback metallic vias Stepped Impedance three polarization half slot antennas in the metal mistake of single polarization
The structural representation of hole Stepped Impedance antenna.
Figure has: medium substrate 1, metal ground 2, radiation the line of rabbet joint 3, coplanar waveguide feeder line 4, ground plane 5,
The other end 6, metallization via 7, the low-resistance line of rabbet joint 8, the high resistant line of rabbet joint 9, port 10, edge 11, conductor 12
Metallic vias Stepped Impedance antenna 13 with single polarization.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment of the present invention is: three polarization half grooves of coplanar wave guide feedback metallic vias Stepped Impedance
Antenna includes three metallic vias Stepped Impedance antennas 13 being mutually perpendicular to the single polarization placed；Each single polarization
Metallic vias Stepped Impedance antenna 13 include medium substrate 1, the metal that is arranged on medium substrate 1 ground 2
With the radiation line of rabbet joint 3, coplanar waveguide feeder line 4；The one side of medium substrate 1 is metal ground 2 and coplanar waveguide feeder line
4, the ground plane 5 of coplanar waveguide feeder line 4 is exactly metal ground 2；The radiation line of rabbet joint 3, radius is had on metal ground 2
The shape of seam 3 is rectangle, and the radiation line of rabbet joint 3 is positioned at the center on metal ground 2；The short at one end of the radiation line of rabbet joint 3,
The other end 6 is opened a way；Radiate the line of rabbet joint 3 part near open end, two edges of its line of rabbet joint, have two rows' gold
Genusization via 7 array so that the radiation line of rabbet joint 3, near the characteristic impedance step-down of the part of open end, forms low-resistance
The line of rabbet joint 8；The remainder of the radiation line of rabbet joint 7 is the high resistant line of rabbet joint 9, and the high resistant line of rabbet joint 9 is structure together with the low-resistance line of rabbet joint 8
Become the Stepped Impedance radiation line of rabbet joint 3, produce a relatively low low frequency operation frequency band of frequency and the higher height of a frequency
Frequently working band；Metallization via 7 passes through medium substrate 1, and one is connected with metal ground 2, and other end is being situated between
The another side of matter substrate 1；One end of coplanar waveguide feeder line 4 is the port 10 of antenna, coplanar waveguide feeder line 4
The conductor 12 of the other end strides across the high resistant line of rabbet joint 9, at the edge 11 of the high resistant line of rabbet joint 9, is connected with metal ground 2.
Change the thickness of medium substrate 1, magnetic conductivity and dielectric constant, thus it is possible to vary the high resistant line of rabbet joint 9 and low-resistance groove
The characteristic impedance of seam 8, changes the height impedance ratio of the Stepped Impedance radiation line of rabbet joint 3, and then changes the low frequency of antenna
The operating frequency of working band and the operating frequency of high-frequency work frequency band.
Change the length of the low-resistance line of rabbet joint 8, the low-resistance line of rabbet joint 8 position in the radiation line of rabbet joint 3, radiation can be regulated
The electrical length of the line of rabbet joint 3, to realize antenna miniaturization in various degree, it is also possible to changes the low frequency operation frequency of antenna
The operating frequency of band and the operating frequency of high-frequency work frequency band.
In metallization via 7 array, change the spacing of adjacent metal via 7, the low-resistance line of rabbet joint 8 can be regulated
Characteristic impedance, change Stepped Impedance radiation the line of rabbet joint 3 height impedance ratio, and then change antenna low frequency operation
The operating frequency of frequency band and the operating frequency of high-frequency work frequency band.
Change the width of the radiation line of rabbet joint 3, the low-resistance line of rabbet joint 8 and the characteristic impedance of the high resistant line of rabbet joint 9 can be regulated, change
Become the height impedance ratio of the Stepped Impedance radiation line of rabbet joint 3, and then change the operating frequency of the low frequency operation frequency band of antenna
Operating frequency with high-frequency work frequency band.
In metallization via 7 array, the spacing of adjacent metal via 7 is less than 1/10th wavelength.
The work of the low frequency operation frequency band of three polarization half slot antennas of coplanar wave guide feedback metallic vias Stepped Impedance
The operating frequency of frequency and high-frequency work frequency band is mainly determined by the resonant frequency of the radiation line of rabbet joint 3, but metal ground
The position that the size of 2, coplanar waveguide feeder line 4 conductor 12 are connected with the radiation line of rabbet joint 3 can also be to the work of antenna
Working frequency and matching degree are adjusted.Owing to the radiation line of rabbet joint 3 existing low-resistance line of rabbet joint 8 has again the high resistant line of rabbet joint 9,
Constitute the radiation line of rabbet joint 3 of Stepped Impedance, not only make antenna miniaturization, reduce cross polarization, also reduce
The size on metal ground 2, improves isolation and reduces the occlusion effect on metal ground 2, but also so that sky
Line has multiple working band, and changes the low-resistance line of rabbet joint 8 and the relative length of the high resistant line of rabbet joint 9, position and impedance,
The position of two working bands can be adjusted respectively.Owing to the radiation line of rabbet joint 3 is quarter-wave resonance structure,
More half as large than the radiation slot length of 1/2nd wavelength of usual two terminal shortcircuits, the therefore overall dimensions of antenna
Reducing the most accordingly, occlusion effect reduces further.
In technique, three polarization half slot antennas of coplanar wave guide feedback metallic vias Stepped Impedance both can use general
Logical printed circuit board (PCB) (PCB) technique, it would however also be possible to employ LTCC (LTCC) technique or CMOS,
The integrated circuit technologies such as Si substrate realize.Wherein metallization via 7 can be hollow metal through hole can also be real
Heart metal aperture, the shape of metal throuth hole can be circular, it is also possible to is square or other shapes.Manufacturing
On, the metallic vias Stepped Impedance antenna 13 of three single polarizations can be mutually perpendicular to be installed together by draw-in groove,
Or it is mutually perpendicular to be bonded together by binding agent, or two kinds of methods are used together.
In accordance with the above, the present invention can just be realized.
Claims (5)
1. three polarization half slot antennas of a coplanar wave guide feedback metallic vias Stepped Impedance, it is characterised in that should
Antenna includes three metallic vias Stepped Impedance antenna (13) being mutually perpendicular to the single polarization placed；Each one pole
Metallic vias Stepped Impedance antenna (13) changed includes medium substrate (1), is arranged on medium substrate (1)
Metal ground (2) and radiate the line of rabbet joint (3), coplanar waveguide feeder line (4)；The one side of medium substrate (1) is gold
Possession (2) and coplanar waveguide feeder line (4), the ground plane (5) of coplanar waveguide feeder line (4) is exactly metal ground
(2)；Having the radiation line of rabbet joint (3) on metal ground (2), the shape of the radiation line of rabbet joint (3) is rectangle, radiates the line of rabbet joint
(3) center of with being positioned at metal (2)；The short at one end of the radiation line of rabbet joint (3), the other end (6) is opened a way；
In the radiation line of rabbet joint (3) near the part of open end, two edges of its line of rabbet joint, two rows are had to metallize via (7)
Array so that the radiation line of rabbet joint (3), near the characteristic impedance step-down of the part of open end, forms the low-resistance line of rabbet joint (8)；
The remainder of the radiation line of rabbet joint (3) is the high resistant line of rabbet joint (9), the high resistant line of rabbet joint (9) and the low-resistance line of rabbet joint (8)
Rise and constitute the Stepped Impedance radiation line of rabbet joint (3), produce a relatively low low frequency operation frequency band of frequency and a frequency relatively
High high-frequency work frequency band；Medium substrate (1) is passed through in metallization via (7), one with metal ground (2) phase
Even, other end is at the another side of medium substrate (1)；One end of coplanar waveguide feeder line (4) is the port of antenna
(10), the conductor (12) of coplanar waveguide feeder line (4) other end strides across the high resistant line of rabbet joint (9), at the high resistant line of rabbet joint
(9) edge (11), with metal (2) be connected.
Three polarization half of a kind of coplanar wave guide feedback metallic vias Stepped Impedance the most according to claim 1
Slot antenna, it is characterised in that change thickness, magnetic conductivity and the dielectric constant of medium substrate (1), thus it is possible to vary
The high resistant line of rabbet joint (9) and the characteristic impedance of the low-resistance line of rabbet joint (8), change the height of the Stepped Impedance radiation line of rabbet joint (3)
Low ESR ratio, and then change operating frequency and the operating frequency of high-frequency work frequency band of the low frequency operation frequency band of antenna.
Three polarization half of a kind of coplanar wave guide feedback metallic vias Stepped Impedance the most according to claim 1
Slot antenna, it is characterised in that change the length of the low-resistance line of rabbet joint (8), the low-resistance line of rabbet joint (8) in the radiation line of rabbet joint (3)
In position, the electrical length of the radiation line of rabbet joint (3) can be regulated, to realize antenna miniaturization in various degree,
Operating frequency and the operating frequency of high-frequency work frequency band of the low frequency operation frequency band of antenna can also be changed.
Three polarization half of a kind of coplanar wave guide feedback metallic vias Stepped Impedance the most according to claim 1
Slot antenna, it is characterised in that in metallization via (7) array, change the spacing of adjacent metal via (7),
The characteristic impedance of the low-resistance line of rabbet joint (8) can be regulated, change the height impedance ratio of the Stepped Impedance radiation line of rabbet joint (3),
And then change operating frequency and the operating frequency of high-frequency work frequency band of the low frequency operation frequency band of antenna.
Three polarization half of a kind of coplanar wave guide feedback metallic vias Stepped Impedance the most according to claim 1
Slot antenna, it is characterised in that change the width of the radiation line of rabbet joint (3), the low-resistance line of rabbet joint (8) and high resistant can be regulated
The characteristic impedance of the line of rabbet joint (9), changes the height impedance ratio of the Stepped Impedance radiation line of rabbet joint (3), and then changes sky
The operating frequency of the low frequency operation frequency band of line and the operating frequency of high-frequency work frequency band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219437.3A CN105896068A (en) | 2016-04-08 | 2016-04-08 | Three-polarization semi-slot antenna with coplanar waveguide feed metal via hole step impedance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219437.3A CN105896068A (en) | 2016-04-08 | 2016-04-08 | Three-polarization semi-slot antenna with coplanar waveguide feed metal via hole step impedance |
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| Publication Number | Publication Date |
|---|---|
| CN105896068A true CN105896068A (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610219437.3A Pending CN105896068A (en) | 2016-04-08 | 2016-04-08 | Three-polarization semi-slot antenna with coplanar waveguide feed metal via hole step impedance |
Country Status (1)
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| CN (1) | CN105896068A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134871A (en) * | 2014-07-22 | 2014-11-05 | 南京邮电大学 | High-isolation semi-groove slot antenna array |
-
2016
- 2016-04-08 CN CN201610219437.3A patent/CN105896068A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134871A (en) * | 2014-07-22 | 2014-11-05 | 南京邮电大学 | High-isolation semi-groove slot antenna array |
Non-Patent Citations (1)
| Title |
|---|
| SHUNLI LI等: ""Postwall Slotline and Its Application in Design of Short-Pulse Tapered Slot Antennas"", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》 * |
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Application publication date: 20160824 |