CN105846091A - Gate slot ground coplanar waveguide feed low resistance sidewall stepped-impedance semi-slot antenna - Google Patents
Gate slot ground coplanar waveguide feed low resistance sidewall stepped-impedance semi-slot antenna Download PDFInfo
- Publication number
- CN105846091A CN105846091A CN201610218380.5A CN201610218380A CN105846091A CN 105846091 A CN105846091 A CN 105846091A CN 201610218380 A CN201610218380 A CN 201610218380A CN 105846091 A CN105846091 A CN 105846091A
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- rabbet joint
- line
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- antenna
- radiation
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
-
- 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
- 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
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/328—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground
-
- 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
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
Abstract
The invention relates to a slot antenna and particularly relates to a gate slot ground coplanar waveguide feed low resistance sidewall stepped-impedance semi-slot antenna. The semi-slot antenna comprises a medium substrate (1), and a metal ground (2) and a radiation slot (3) which are on the medium substrate (1), and a coplanar waveguide feeder (4), wherein the radiation slot (3) and multiple parallel gate slots (6) are on the metal ground (2), one end of the radiation slot (3) is in short circuit, the other end of the radiation slot (3) is in open circuit, the portion of the radiation slot (3) close to the open circuit end is provided with two metalized side walls (7) which form a low-resistance slot (8), the other portion of the radiation slot (3) is a high-resistance slot (9), an outer conductor (5) of the coplanar waveguide feeder (4) is connected with the metal ground (2), and an inner conductor (12) at the tail end of the coplanar waveguide feeder (4) crosses the high-resistance slot (9) and is connected with the metal ground (2) at an edge (11). The tri-polarized semi-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 half of a kind of grid seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance
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 spoke
Penetrate the length of the line of rabbet joint itself and to have 1/2nd wavelength, and radiate and also need to bigger Metal ground around the line of rabbet joint and amass, logical
Often length 1/2nd wavelength bigger than the length of the line of rabbet joint on metal ground, the width big 1/2nd of the width ratio line of rabbet joint on metal ground
Wavelength.Bigger metal ground can make slot antenna be not suitable for multiple-input and multiple-output (MIMO) application, causes antenna
Cross polarization is deteriorated, and these all will cause the decline of spectrum efficiency and channel capacity.The impedance of the line of rabbet joint simultaneously is very big, also makes
The impedance matching obtaining slot antenna feeding transmission line is relatively difficult.The development of modern communications simultaneously also requires that antenna can be with multifrequency
Band work and two frequency bands can regulate respectively.
Summary of the invention
Technical problem: the purpose of the present invention is to propose to half groove of a kind of grid seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance
Antenna, this antenna has been possible not only to multiple working band, and multiple frequency band can regulate respectively；This antenna can reduce
The length of the radiation line of rabbet joint and the area on metal ground, and there is the cross-polarized effect of suppression.
Technical scheme: half slot antenna of the grid seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance of the present invention includes medium base
Plate, the metal being arranged on medium substrate and radiation the line of rabbet joint, coplanar waveguide feeder line；The one side of medium substrate is metal ground
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, radiates the line of rabbet joint
Shape be rectangle, radiation the line of rabbet joint be positioned at metal ground center；The metal grid seam that a plurality of parallel gate seam is constituted on the ground, grid stitch
Shape be rectangle, grid seam be positioned at radiation the line of rabbet joint surrounding, grid seam with radiate the line of rabbet joint be mutually perpendicular to；The short at one end of grid seam；
The other end open circuit of grid seam, is positioned at the edge of medium substrate；The short at one end of the radiation line of rabbet joint, the other end is opened a way；In radiation
The line of rabbet joint, near the part of open end, two edges of its line of rabbet joint, has two metalized sidewall so that the radiation line of rabbet joint is near opening
The characteristic impedance step-down of the part of terminal, 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 resistant groove
Seam 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 band of frequency and a frequency
The high-frequency work frequency band that rate is higher；Metalized sidewall passes through medium substrate, one with metal be connected, other end is at medium
The another side of substrate；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 height
Resistance the 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, pcrmeability and dielectric constant, thus it is possible to vary the characteristic resistance of the high resistant line of rabbet joint and the low-resistance line of rabbet joint
Anti-, change the height impedance ratio of the Stepped Impedance radiation line of rabbet joint, and then change 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 electrical length of the radiation line of rabbet joint can be regulated,
To realize antenna miniaturization in various degree, it is also possible to change operating frequency and the high-frequency work of the low frequency operation frequency band of antenna
The operating frequency of frequency band.
Change grid seam in adjacent gate seam spacing, grid seam width, grid seam short-circuit end from radiation the line of rabbet joint distance, Ke Yigai
The change of weather operating frequency of line, the width of working band and the electrical length of the radiation line of rabbet joint.
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 Stepped Impedance spoke
Penetrate the height impedance ratio of the line of rabbet joint, and then change operating frequency and the work of high-frequency work frequency band of the low frequency operation frequency band of antenna
Frequency.
The electrical length of grid seam should not be taken at 1/4th, to avoid causing resonance radiation, causes cross-polarized rising.
Grid seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance half slot antenna low frequency operation frequency band operating frequency and
The operating frequency of high-frequency work frequency band is mainly determined by the resonant frequency of the radiation line of rabbet joint, but the size on metal ground, coplanar ripple
Lead feeder conductor can also the operating frequency of antenna and matching degree be adjusted with the position that is connected of the radiation line of rabbet joint.Due to
The radiation line of rabbet joint existing low-resistance line of rabbet joint has again the high resistant line of rabbet joint, constitutes the radiation line of rabbet joint of Stepped Impedance, not only makes antenna small-sized
Change, reduce cross polarization, also reduce the size on metal ground, 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.
Metal grid seam on the ground becomes periodically loading to radius slit, makes again to radiate the line of rabbet joint and becomes periodic slow-wave structure,
Further reduce the electric size of antenna；Simultaneously because the direction of grid seam is vertical with the direction of the radiation line of rabbet joint, it is suppressed that metal
On the ground along the electric current in radiation line of rabbet joint direction, and make the more concentration along the remaining CURRENT DISTRIBUTION radiating line of rabbet joint direction, from
And reduce cross-polarized radiation, also reduce the size on metal ground.Owing to the radiation line of rabbet joint is quarter-wave humorous
Shake structure, more half as large than the radiation slot length of 1/2nd wavelength of usual two terminal shortcircuits, the therefore overall chi of antenna
Very little reducing the most accordingly, occlusion effect reduces further.
Beneficial effect: the beneficial effect of half slot antenna of the grid seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance of the present invention
It is that this antenna can reduce the electric size of whole antenna, realize miniaturization, and this antenna has been possible not only to multiple frequency band simultaneously,
And multiple frequency band can regulate respectively, also there is the cross polarization effect of suppression antenna.
Accompanying drawing explanation
Fig. 1 is half slot antenna structural representation of grid seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance.
Figure has: medium substrate 1, metal ground 2, radiation the line of rabbet joint 3, coplanar waveguide feeder line 4, ground plane 5, grid seam 6,
The grid seam of 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 and single polarization
Ground metal sidewall Stepped Impedance antenna 13.
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: half slot antenna bag of grid seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance
The metal ground 2 include medium substrate 1, being arranged on medium substrate 1 and the radiation line of rabbet joint 3, coplanar waveguide feeder line 4；Medium base
The one side of plate 1 is metal ground 2 and coplanar waveguide feeder line 4, and 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, and the radiation line of rabbet joint 3 is positioned at the center on metal ground 2；
The grid seam 6 of a plurality of parallel gate seam 6 composition on metal ground 2, the shape of grid seam 6 is rectangle, and grid seam is positioned at the radiation line of rabbet joint 3
Surrounding, grid seam 6 with radiate the line of rabbet joint 3 be mutually perpendicular to；The short at one end of grid seam 6；The other end open circuit of grid seam 6, position
Edge in medium substrate 1；The short at one end of the radiation line of rabbet joint 3, the other end is opened a way；At the radiation line of rabbet joint 3 near open end
Part, two edges of its line of rabbet joint, have two metalized sidewall 7 so that the radiation line of rabbet joint 3 is near the part of open end
Characteristic impedance step-down, formed 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 a relatively low low frequency operation frequency band of frequency and one
The high-frequency work frequency band that frequency is higher；Metalized sidewall 7 passes through medium substrate 1, and one is connected with metal ground 2, another
Head is at the another side of medium 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, pcrmeability and dielectric constant, thus it is possible to vary the high resistant line of rabbet joint 9 and the low-resistance line of rabbet joint 8
Characteristic impedance, changes the height impedance ratio of the Stepped Impedance radiation line of rabbet joint 3, 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 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, the radiation line of rabbet joint 3 can be regulated
Electrical length, to realize antenna miniaturization in various degree, it is also possible to change the operating frequency of the low frequency operation frequency band of antenna
Operating frequency with high-frequency work frequency band.
Change grid seam 6 in adjacent gate seam 6 spacing, grid seam 6 width, grid stitch 6 short-circuit ends from radiation the line of rabbet joint 3 away from
From, thus it is possible to vary the operating frequency of antenna, the width of working band and the electrical length of the radiation line of rabbet joint 3.
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 step
The height impedance ratio of the impedance radiation line of rabbet joint 3, and then change operating frequency and the high-frequency work frequency of the low frequency operation frequency band of antenna
The operating frequency of band.
The electrical length of grid seam 6 should not be taken at 1/4th, to avoid causing resonance radiation, causes cross-polarized rising.
Grid seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance half slot antenna low frequency operation frequency band operating frequency and
The operating frequency of high-frequency work frequency band is mainly determined by the resonant frequency of the radiation line of rabbet joint 3, but the size on metal ground 2, altogether
The operating frequency of antenna and matching degree can also be entered by the position that face waveguide feeder 4 conductor 12 is connected with the radiation line of rabbet joint 3
Row regulation.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 of Stepped Impedance
3, not only make antenna miniaturization, reduce cross polarization, also reduce the size on metal ground 2, but also can make
Obtain antenna and have multiple working 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,
The position of two working bands can be adjusted respectively.The radiation line of rabbet joint 3 is formed and periodically adds by the grid seam 6 on metal ground 2
Carry, make again to radiate the line of rabbet joint 3 and become periodic slow-wave structure, further reduce the electric size of antenna；Simultaneously because
The direction of grid seam 6 is vertical with the direction of the radiation line of rabbet joint 3, it is suppressed that along the electric current in the radiation line of rabbet joint 3 direction on metal ground 2,
And make the more concentration along the remaining CURRENT DISTRIBUTION radiating the line of rabbet joint 3 direction, thus reduce cross-polarized radiation,
Also reduce the size on metal ground 2.Owing to the radiation line of rabbet joint 3 is quarter-wave resonance structure, shorter than usual two ends
The radiation slot length of 1/2nd wavelength on road is half as large, and therefore the overall dimensions of antenna reduces the most accordingly, blocks effect
Should reduce further.
In technique, half slot antenna of grid seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance both can use common print
Printed circuit board (PCB) technique, it would however also be possible to employ LTCC (LTCC) technique or CMOS, Si substrate etc. collect
Circuit technology is become to realize.Wherein metalized sidewall 7 can be hollow metal sidewall can also be solid metal sidewall.
In accordance with the above, the present invention can just be realized.
Claims (5)
1. half slot antenna of a grid seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance, it is characterised in that this antenna bag
Metal ground (2) include medium substrate (1), being arranged on medium substrate (1) and the radiation line of rabbet joint (3), co-planar waveguide feedback
Line (4)；The one side of medium substrate (1) is metal ground (2) and coplanar waveguide feeder line (4), coplanar waveguide feeder line (4)
Ground plane (5) be exactly metal ground (2)；The radiation line of rabbet joint (3), the shape of the radiation line of rabbet joint (3) is had on metal ground (2)
Shape is rectangle, the center of the radiation line of rabbet joint (3) with being positioned at metal (2)；Upper a plurality of parallel gate seam (6) of metal ground (2)
Grid seam (6) constituted, the shape of grid seam (6) is rectangle, and grid seam is positioned at the surrounding of the radiation line of rabbet joint (3), grid seam (6)
It is mutually perpendicular to the radiation line of rabbet joint (3)；The short at one end of grid seam (6)；The other end open circuit of grid seam (6), is positioned at Jie
The edge of matter substrate (1)；The short at one end of the radiation line of rabbet joint (3), the other end is opened a way；Close in the radiation line of rabbet joint (3)
The part of open end, two edges of its line of rabbet joint, there are two metalized sidewall (7) so that the radiation line of rabbet joint (3) is close
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 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 one
Low frequency operation frequency band that frequency is relatively low and the higher high-frequency work frequency band of a frequency；Metalized sidewall (7) passes through medium
Substrate (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 high resistant groove
Seam (9), at the edge (11) of the high resistant line of rabbet joint (9), with metal (2) be connected.
Half slot antenna of a kind of grid the most according to claim 1 seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance,
It is characterized in that change medium substrate (1) thickness, pcrmeability and dielectric constant, 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), changes the height impedance ratio of the Stepped Impedance radiation line of rabbet joint (3), and then changes antenna
The operating frequency of low frequency operation frequency band and the operating frequency of high-frequency work frequency band.
Half slot antenna of a kind of grid the most according to claim 1 seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance,
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), can
With the electrical length of the regulation radiation line of rabbet joint (3), to realize antenna miniaturization in various degree, it is also possible to change the low of antenna
Frequently the operating frequency of working band and the operating frequency of high-frequency work frequency band.
Half slot antenna of a kind of grid the most according to claim 1 seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance,
It is characterized in that changing the adjacent gate seam spacing of (6) in grid seam (6), the grid seam width of (6), grid seam (6) short circuit
Hold the distance from the radiation line of rabbet joint (3), thus it is possible to vary the operating frequency of antenna, the width of working band and the radiation line of rabbet joint (3)
Electrical length.
Half slot antenna of a kind of grid the most according to claim 1 seam ground coplanar wave guide feedback low-resistance sidewall Stepped Impedance,
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 spy of the high resistant line of rabbet joint (9) can be regulated
Property impedance, change the height impedance ratio of the Stepped Impedance radiation line of rabbet joint (3), and then change the low frequency operation frequency band of antenna
Operating frequency and the operating frequency of high-frequency work frequency band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218380.5A CN105846091A (en) | 2016-04-08 | 2016-04-08 | Gate slot ground coplanar waveguide feed low resistance sidewall stepped-impedance semi-slot antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218380.5A CN105846091A (en) | 2016-04-08 | 2016-04-08 | Gate slot ground coplanar waveguide feed low resistance sidewall stepped-impedance semi-slot antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105846091A true CN105846091A (en) | 2016-08-10 |
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ID=56597029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610218380.5A Pending CN105846091A (en) | 2016-04-08 | 2016-04-08 | Gate slot ground coplanar waveguide feed low resistance sidewall stepped-impedance semi-slot antenna |
Country Status (1)
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| CN (1) | CN105846091A (en) |
Citations (4)
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|---|---|---|---|---|
| CN201638940U (en) * | 2010-04-29 | 2010-11-17 | 东南大学 | Quadruple frequency interval printed antenna using travelling wave feeding structure |
| CN102570020A (en) * | 2012-01-18 | 2012-07-11 | 华南理工大学 | Ultra-wideband trapped wave antenna with good rectangular degree and controllable stop band bandwidth |
| CN102664307A (en) * | 2012-05-18 | 2012-09-12 | 哈尔滨工业大学 | Slot-loaded multi-frequency printed 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 CN201610218380.5A patent/CN105846091A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201638940U (en) * | 2010-04-29 | 2010-11-17 | 东南大学 | Quadruple frequency interval printed antenna using travelling wave feeding structure |
| CN102570020A (en) * | 2012-01-18 | 2012-07-11 | 华南理工大学 | Ultra-wideband trapped wave antenna with good rectangular degree and controllable stop band bandwidth |
| CN102664307A (en) * | 2012-05-18 | 2012-09-12 | 哈尔滨工业大学 | Slot-loaded multi-frequency printed 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 |
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