CN105846066A - Dual-frequency metal through hole stepped-impedance tri-polarized slot antenna - Google Patents
Dual-frequency metal through hole stepped-impedance tri-polarized slot antenna Download PDFInfo
- Publication number
- CN105846066A CN105846066A CN201610218389.6A CN201610218389A CN105846066A CN 105846066 A CN105846066 A CN 105846066A CN 201610218389 A CN201610218389 A CN 201610218389A CN 105846066 A CN105846066 A CN 105846066A
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- Prior art keywords
- rabbet joint
- line
- frequency
- antenna
- radiation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- 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
- H01Q13/106—Microstrip slot 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
- H01Q5/10—Resonant antennas
Abstract
The invention relates to a slot antenna and particularly relates to a dual-frequency metal through hole stepped-impedance tri-polarized slot antenna. The tri-polarized slot antenna comprises three single-polarized antennas (13) which are perpendicular to each other, each antenna (13) comprises a medium substrate (1), a metal ground (2) and a radiation slot (3) which are on the medium substrate (1), and a microstrip feeder (4), wherein the radiation slot (3) is on the metal ground (2), two ends of the radiation slot (3) are in short circuit, the middle portion of the radiation slot (3) are two rows of metallization through holes (7) which form a low resistance slot (8) in an array mode, the other portion of the radiation slot (3) is a high resistance slot (9), one end of the microstrip feeder (4) is an antenna port (10), and the other end of the microstrip feeder (4) is in open circuit, crosses the high resistance slot (9) and is connected with the ground metal (2) at the edge (11) through a short circuit needle (12). The tri-polarized slot antenna realizes multiband operation, can reduce the antenna dimension, cross polarization and shielding and improves isolation.
Description
Technical field
The present invention relates to a kind of slot antenna, the three polarization lines of rabbet joint of a kind of bi-frequency metal via Stepped Impedance
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 polarization line of rabbet joint skies of a kind of bi-frequency metal via Stepped Impedance
Line, this antenna has been possible not only to multiple working band, and multiple frequency band can regulate respectively；This antenna is permissible
Reduce length and the area on metal ground of the radiation line of rabbet joint, and there is suppression cross polarization, improvement isolation, reduce
The effect blocked.
Technical scheme: three polarization slot antennas of the bi-frequency metal via Stepped Impedance of the present invention include three mutually
The metallic vias Stepped Impedance antenna of the single polarization being disposed vertically；The metallic vias Stepped Impedance sky of each single polarization
The metal that line includes medium substrate, be arranged on medium substrate and the radiation line of rabbet joint, microstrip feed line；Medium substrate
One side be metal ground, the another side of medium substrate is the conduction band of microstrip feed line；Metal has the radiation line of rabbet joint on the ground,
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；Two terminal shortcircuits of the radiation line of rabbet joint；?
Radiation line of rabbet joint mid portion, two edges of its line of rabbet joint, there are two rows to metallize arrays of vias so that the radiation line of rabbet joint
The characteristic impedance step-down of mid portion, forms the low-resistance line of rabbet joint；The remainder of the radiation line of rabbet joint is the high resistant line of rabbet joint, high
The resistance line of rabbet joint constitutes the Stepped Impedance radiation line of rabbet joint together with the low-resistance line of rabbet joint, produces a relatively low low frequency operation frequency of frequency
The high-frequency work frequency band that band is higher with a frequency；Metallization via passes through medium substrate, one with metal ground phase
Even, other end is at the another side of medium substrate；Also being the ground plane of described microstrip feed line, micro-strip is presented metal
One end of line is the port of antenna, and the other end of the conduction band of microstrip feed line strides across the high resistant line of rabbet joint, at the high resistant line of rabbet joint
Edge, is connected by Shorted post and metal.
Change the thickness of medium substrate, pcrmeability 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 operating frequency of the low frequency operation frequency band of three polarization slot antennas of bi-frequency metal via Stepped Impedance and height
Frequently the operating frequency of working band is mainly determined by the resonant frequency of the radiation line of rabbet joint, but the size, micro-on metal ground
The operating frequency of antenna and matching degree can also be adjusted by ribbon feeder conduction band in the position of the radiation line of rabbet joint.By
There is again the high resistant line of rabbet joint in the radiation line of rabbet joint existing low-resistance line of rabbet joint, constitute the radiation line of rabbet joint of Stepped Impedance, not only make
Antenna miniaturization, reduces cross polarization, also reduces the size on metal ground, improves isolation and reduces metal
The occlusion effect on ground, but also so that antenna has multiple working band, and change the low-resistance line of rabbet joint and high resistant
The relative length of the line of rabbet joint and impedance, can adjust the position of two working bands respectively.
Beneficial effect: three polarization slot antennas of the bi-frequency metal via Stepped Impedance of the present invention provide the benefit that,
This antenna can reduce the electric size of whole antenna, realize miniaturization, and this antenna has been possible not only to multiple frequency simultaneously
Band, and multiple frequency band can regulate respectively, also has the cross polarization of suppression antenna, improves the interval of port
From, and reduce the effect blocked on metal ground.
Accompanying drawing explanation
Fig. 1 is three polarization slot antenna overall structure schematic diagrams of bi-frequency metal via Stepped Impedance.
Fig. 2 be bi-frequency metal via Stepped Impedance three polarization slot antennas in single polarization metallic vias step resistance
The structural representation of anti-antenna.
Figure has: medium substrate 1, metal ground 2, radiation the line of rabbet joint 3, microstrip feed line 4, conduction band 5, two ends 6,
Metallization via 7, the low-resistance line of rabbet joint 8, the high resistant line of rabbet joint 9, port 10, edge 11, Shorted post 12 and one pole
The metallic vias Stepped Impedance antenna 13 changed.
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 slot antennas of bi-frequency metal via Stepped Impedance include
Three metallic vias Stepped Impedance antennas 13 being mutually perpendicular to the single polarization placed；The metal mistake of each single polarization
Hole Stepped Impedance antenna 13 includes medium substrate 1, be arranged on medium substrate 1 metal ground 2 and radius
Seam 3, microstrip feed line 4；The one side of medium substrate 1 is metal ground 2, and the another side of medium substrate 1 is micro-strip
The conduction band 5 of feeder line 4；Having the radiation line of rabbet joint 3 on metal ground 2, the shape of the radiation line of rabbet joint 3 is rectangle, radius
Seam 3 is positioned at the center on metal ground 2；Two ends 6 short circuit of the radiation line of rabbet joint 3；At the radiation line of rabbet joint 3 mid portion,
Two edges of its line of rabbet joint, have two rows to metallize via 7 array so that the characteristic of the radiation line of rabbet joint 3 mid portion
Impedance step-down, forms the low-resistance line of rabbet joint 8；The remainder of the radiation line of rabbet joint 7 is the high resistant line of rabbet joint 9, the high resistant line of rabbet joint 9
Constitute the Stepped Impedance radiation line of rabbet joint 3 together with the low-resistance line of rabbet joint 8, produce the low frequency operation frequency band that a frequency is relatively low
The high-frequency work frequency band higher with a frequency；Metallization via 7 passes through medium substrate 1, one and metal ground
2 are connected, and other end is at the another side of medium substrate 1；Metal ground 2 is also the ground connection of described microstrip feed line 4
Face, one end of microstrip feed line 4 is the port 10 of antenna, and the other end of the conduction band 5 of microstrip feed line 4 strides across height
The resistance line of rabbet joint 9, at the edge 11 of the high resistant line of rabbet joint 9, is connected with metal ground 2 by Shorted post 12.
Change the thickness of medium substrate 1, pcrmeability 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 arrays of vias 7, change the spacing of adjacent metal via, the low-resistance line of rabbet joint 8 can be regulated
Characteristic impedance, changes the height impedance ratio of the Stepped Impedance radiation line of rabbet joint 3, and then changes the low frequency operation frequency of antenna
The operating frequency of 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 operating frequency of the low frequency operation frequency band of three polarization slot antennas of bi-frequency metal via Stepped Impedance and height
Frequently the operating frequency of working band is mainly determined by the resonant frequency of the radiation line of rabbet joint 3, but the size on metal ground 2,
The conduction band 5 of microstrip feed line 4 can also be to the operating frequency of antenna and coupling in the position of the radiation line of rabbet joint 3 and width
Degree is 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 step resistance
The anti-radiation line of rabbet joint 3, not only makes antenna miniaturization, reduces cross polarization, also reduces metal ground 2
Size, improves isolation and reduces the occlusion effect on metal ground 2, but also so that antenna has multiple work
Frequency band, and change the low-resistance line of rabbet joint 8 and the relative length of the high resistant line of rabbet joint 9, position and impedance, can adjust respectively
The position of whole two working bands.
In technique, three polarization slot antennas of bi-frequency metal via Stepped Impedance both can use common printing
Circuit board (PCB) technique, it would however also be possible to employ LTCC (LTCC) technique or CMOS, Si base
The integrated circuit technologies such as sheet realize.Wherein metallization via 7 can be hollow metal through hole can also be solid gold
Belonging to hole, the shape of metal throuth hole can be circular, it is also possible to is square or other shapes.On manufacturing,
The metallic vias Stepped Impedance antenna 13 of three single polarizations can be mutually perpendicular to be installed together by draw-in groove, or
Person 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 slot antennas of a bi-frequency metal via Stepped Impedance, it is characterised in that this antenna includes
Three metallic vias Stepped Impedance antenna (13) being mutually perpendicular to the single polarization placed；The metal of each single polarization
The metal ground that via Stepped Impedance antenna (13) includes medium substrate (1), is arranged on medium substrate (1)
(2) and radiation the line of rabbet joint (3), microstrip feed line (4)；The one side of medium substrate (1) is metal ground (2), is situated between
The another side of matter substrate (1) is the conduction band (5) of microstrip feed line (4)；The radiation line of rabbet joint is had on metal ground (2)
(3), the shape of the radiation line of rabbet joint (3) is rectangle, the center of the radiation line of rabbet joint (3) with being positioned at metal (2)；
Two ends (6) short circuit of the radiation line of rabbet joint (3)；On the radiation line of rabbet joint (3) mid portion, two limits of its line of rabbet joint
Edge, has two rows to metallize via (7) array so that the characteristic impedance step-down of the radiation line of rabbet joint (3) mid portion,
Form 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)
Constitute the Stepped Impedance radiation line of rabbet joint (3) together with the low-resistance line of rabbet joint (8), produce the low frequency work that a frequency is relatively low
Make frequency band and the higher high-frequency work frequency band of a frequency；Medium substrate (1) is passed through in metallization via (7),
One is connected with metal ground (2), and other end is at the another side of medium substrate (1)；Metal ground (2) is also
The ground plane of described microstrip feed line (4), one end of microstrip feed line (4) is the port (10) of antenna, micro-
The other end of the conduction band (5) of ribbon feeder (4) strides across the high resistant line of rabbet joint (9), at the edge of the high resistant line of rabbet joint (9)
(11), it is connected with metal ground (2) by Shorted post (12).
Three polarization slot antennas of a kind of bi-frequency metal via Stepped Impedance the most according to claim 1,
It is characterized in that changing thickness, pcrmeability and the dielectric constant of medium substrate (1), thus it is possible to vary the high resistant line of rabbet joint
And the characteristic impedance of the low-resistance line of rabbet joint (8) (9), the height impedance ratio of the Stepped Impedance radiation line of rabbet joint (3) is changed,
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 slot antennas of a kind of bi-frequency metal via Stepped Impedance the most according to claim 1,
It is characterized in that changing 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)
Put, the electrical length of the radiation line of rabbet joint (3) can be regulated, to realize antenna miniaturization in various degree, it is also possible to
Change operating frequency and the operating frequency of high-frequency work frequency band of the low frequency operation frequency band of antenna.
Three polarization slot antennas of a kind of bi-frequency metal via Stepped Impedance the most according to claim 1,
It is characterized in that metallizing in via (7) array, change the spacing of adjacent metal via (7), can adjust
The characteristic impedance of the joint low-resistance line of rabbet joint (8), changes 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 slot antennas of a kind of bi-frequency metal via Stepped Impedance the most according to claim 1,
It is characterized in that changing the width of the radiation line of rabbet joint (3), the low-resistance line of rabbet joint (8) and the high resistant line of rabbet joint (9) can be regulated
Characteristic impedance, change Stepped Impedance radiation the line of rabbet joint (3) height impedance ratio, and then change antenna low frequency
The operating frequency of working band and the operating frequency of high-frequency work frequency band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218389.6A CN105846066A (en) | 2016-04-08 | 2016-04-08 | Dual-frequency metal through hole stepped-impedance tri-polarized slot antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218389.6A CN105846066A (en) | 2016-04-08 | 2016-04-08 | Dual-frequency metal through hole stepped-impedance tri-polarized slot antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105846066A true CN105846066A (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610218389.6A Pending CN105846066A (en) | 2016-04-08 | 2016-04-08 | Dual-frequency metal through hole stepped-impedance tri-polarized slot antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105846066A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7123200B1 (en) * | 1990-05-02 | 2006-10-17 | Nortel Networks Limited | Sea surface antenna |
| CN104124527A (en) * | 2014-07-22 | 2014-10-29 | 南京邮电大学 | High-isolation slot antenna array |
-
2016
- 2016-04-08 CN CN201610218389.6A patent/CN105846066A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7123200B1 (en) * | 1990-05-02 | 2006-10-17 | Nortel Networks Limited | Sea surface antenna |
| CN104124527A (en) * | 2014-07-22 | 2014-10-29 | 南京邮电大学 | High-isolation slot antenna array |
Non-Patent Citations (1)
| Title |
|---|
| SHUNLI LI ET AL: "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: 20160810 |