CN105846068A - Tri-polarization slot antenna formed by co-planar waveguide feeder lines and low resistance metal wall provided step impedance antennas - Google Patents
Tri-polarization slot antenna formed by co-planar waveguide feeder lines and low resistance metal wall provided step impedance antennas Download PDFInfo
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- CN105846068A CN105846068A CN201610218644.7A CN201610218644A CN105846068A CN 105846068 A CN105846068 A CN 105846068A CN 201610218644 A CN201610218644 A CN 201610218644A CN 105846068 A CN105846068 A CN 105846068A
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- rabbet joint
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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
- H01Q13/10—Resonant slot antennas
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- 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
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Abstract
The invention provides a tri-polarization slot antenna formed by co-planar waveguide feeder lines and low resistance metal wall provided step impedance antennas. The antenna is formed by three mono-polar antennas that are mutually perpendicular to each other. Each of the three antennas comprises a medium substrate (1), a metal ground (2) on the medium substrate (1), a radiation slot (3) and a co-planar waveguide feeder line (4). The radiation slot (3) is arranged on the metal ground (2). The two ends (6) of the radiation slot (3) are short circuited. In the middle of the radiation slot (3) is a low resistance slot (8) formed by two metalized side walls (7). The rest part of the radiation slot (3) is a high resistance slot (9). The external conductor (5) of the co-planar waveguide feeder line (4) is connected to the metal ground (2). The conductor (12) inside the end part crosses over the high resistance slot (9) at the edges (11) to get connected with the metal ground (2). The tri-polarization slot antenna works in multiple frequency bands. Its size is reduced. Interacted and blocked, an improved isolation effect can be achieved.
Description
Technical field
The present invention relates to a kind of slot antenna, the three of a kind of coplanar wave guide feedback low-resistance sidewall Stepped Impedance
Polarization 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 low-resistance sidewall Stepped Impedance
Changing 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 slot antennas of the coplanar wave guide feedback low-resistance sidewall Stepped Impedance of the present invention include
Three metal sidewall Stepped Impedance antennas being mutually perpendicular to the single polarization placed；The metal side scarcement 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；
Two terminal shortcircuits of the radiation line of rabbet joint；At radiation line of rabbet joint mid portion, two edges of its line of rabbet joint, there are two metallization
Sidewall so that the characteristic impedance step-down of radiation line of rabbet joint mid portion, forms the low-resistance line of rabbet joint；Remaining of the radiation line of rabbet joint
Part is the high resistant line of rabbet joint, and the high resistant line of rabbet joint constitutes the Stepped Impedance radiation line of rabbet joint together with the low-resistance line of rabbet joint, produces a frequency
Low frequency operation frequency band that rate is relatively low and the higher high-frequency work frequency band of a frequency；Metalized sidewall passes through medium base
Plate, one with metal be connected, other end is at the another side of medium substrate；One end of coplanar waveguide feeder line is sky
The port of line, 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 gold
Possession connects.
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.
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.
The work of the low frequency operation frequency band of three polarization slot antennas of coplanar wave guide feedback low-resistance sidewall 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 the size on metal ground, improve
Isolation and occlusion effect with reducing metal, but also so that antenna has multiple working band, Er Qiegai
Step-down hinders the line of rabbet joint and the relative length of the high resistant line of rabbet joint and impedance, can adjust the position of two working bands respectively.
Beneficial effect: having of three polarization slot antennas of the coplanar wave guide feedback low-resistance sidewall Stepped Impedance of the present invention
Benefit effect is that 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 slot antenna overall structure schematic diagrams of coplanar wave guide feedback low-resistance sidewall Stepped Impedance.
Fig. 2 be coplanar wave guide feedback low-resistance sidewall Stepped Impedance three polarization slot antennas in the metal side of single polarization
Scarcement jumps the structural representation of 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,
Two ends 6, metalized sidewall 7, the low-resistance line of rabbet joint 8, the high resistant line of rabbet joint 9, port 10, edge 11, conductor 12
Metal sidewall 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: the three polarization lines of rabbet joint of coplanar wave guide feedback low-resistance sidewall Stepped Impedance
Antenna includes three metal sidewall Stepped Impedance antennas 13 being mutually perpendicular to the single polarization placed；Each single polarization
Metal sidewall 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；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, there are two metalized sidewall 7 so that radius
Stitch the characteristic impedance step-down of 3 mid portions, form the low-resistance line of rabbet joint 8；The remainder of the radiation line of rabbet joint 7 is high resistant
The line of rabbet joint 9, the high resistant line of rabbet joint 9 constitutes the Stepped Impedance radiation line of rabbet joint 3 together with the low-resistance line of rabbet joint 8, produces a frequency
Relatively low low frequency operation frequency band and the higher high-frequency work frequency band of a frequency；Metalized sidewall 7 passes through medium base
Plate 1, one is connected with metal ground 2, and other end is at the another side of medium substrate 1；Coplanar waveguide feeder line 4
One end is the port 10 of antenna, and the conductor 12 of coplanar waveguide feeder line 4 other end strides across the high resistant line of rabbet joint 9, at height
The edge 11 of the resistance line of rabbet joint 9, is connected with metal ground 2.
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.
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.
The work of the low frequency operation frequency band of three polarization slot antennas of coplanar wave guide feedback low-resistance sidewall 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.
In technique, three polarization slot antennas of coplanar wave guide feedback low-resistance sidewall 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 metalized sidewall 7 can be that hollow metal sidewall can also be
Solid metal sidewall.On manufacturing, the metal sidewall Stepped Impedance antenna 13 of three single polarizations can be by card
Groove is mutually perpendicular to be installed together, or is mutually perpendicular to be bonded together by binding agent, or two kinds of methods one
Rise and use.
In accordance with the above, the present invention can just be realized.
Claims (4)
1. three polarization slot antennas of a coplanar wave guide feedback low-resistance sidewall Stepped Impedance, it is characterised in that should
Antenna includes three metal sidewall Stepped Impedance antenna (13) being mutually perpendicular to the single polarization placed；Each one pole
Metal sidewall 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)；Two ends (6) short circuit of the radiation line of rabbet joint (3)；In the radiation line of rabbet joint (3)
Mid portion, two edges of its line of rabbet joint, there are two metalized sidewall (7) so that in the radiation line of rabbet joint (3)
Between part characteristic impedance step-down, formed the low-resistance line of rabbet joint (8)；The remainder of the radiation line of rabbet joint (3) is high resistant
The line of rabbet joint (9), the high resistant line of rabbet joint (9) constitutes the Stepped Impedance radiation line of rabbet joint (3) together with the low-resistance line of rabbet joint (8), produces
Low frequency operation frequency band that a raw frequency is relatively low and the higher high-frequency work frequency band of a frequency；Metalized sidewall (7)
Passing through medium substrate (1), one is connected with metal ground (2), and other end is at the another side of medium substrate (1)；
One end of coplanar waveguide feeder line (4) is the port (10) of antenna, leading of coplanar waveguide feeder line (4) other end
Body (12) strides across the high resistant line of rabbet joint (9), at the edge (11) of the high resistant line of rabbet joint (9), with metal (2) even
Connect.
Three polarization grooves of a kind of coplanar wave guide feedback low-resistance sidewall Stepped Impedance the most according to claim 1
Seam antenna, it is characterised in that change thickness, pcrmeability 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 grooves of a kind of coplanar wave guide feedback low-resistance sidewall Stepped Impedance the most according to claim 1
Seam 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 grooves of a kind of coplanar wave guide feedback low-resistance sidewall Stepped Impedance the most according to claim 1
Seam 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 |
|---|---|---|---|
| CN201610218644.7A CN105846068A (en) | 2016-04-08 | 2016-04-08 | Tri-polarization slot antenna formed by co-planar waveguide feeder lines and low resistance metal wall provided step impedance antennas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218644.7A CN105846068A (en) | 2016-04-08 | 2016-04-08 | Tri-polarization slot antenna formed by co-planar waveguide feeder lines and low resistance metal wall provided step impedance antennas |
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| Publication Number | Publication Date |
|---|---|
| CN105846068A true CN105846068A (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610218644.7A Pending CN105846068A (en) | 2016-04-08 | 2016-04-08 | Tri-polarization slot antenna formed by co-planar waveguide feeder lines and low resistance metal wall provided step impedance antennas |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124527A (en) * | 2014-07-22 | 2014-10-29 | 南京邮电大学 | High-isolation slot antenna array |
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2016
- 2016-04-08 CN CN201610218644.7A patent/CN105846068A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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