CN105896046A - Three-polarization slot antenna with dual-frequency gate gap ground metal via hole step impedance - Google Patents
Three-polarization slot antenna with dual-frequency gate gap ground metal via hole step impedance Download PDFInfo
- Publication number
- CN105896046A CN105896046A CN201610218388.1A CN201610218388A CN105896046A CN 105896046 A CN105896046 A CN 105896046A CN 201610218388 A CN201610218388 A CN 201610218388A CN 105896046 A CN105896046 A CN 105896046A
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- rabbet joint
- line
- frequency
- antenna
- seam
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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
Abstract
The invention discloses a three-polarization slot antenna with dual-frequency gate gap ground 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 microstrip feeder (4), wherein the metal ground (2) is provided with the radiation slot (3) and multiple parallel gate gaps (6); two ends of the radiation slot (3) are short-circuited; the middle 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); and one end of the microstrip feeder (4) is an antenna port (10) and the other end of the microstrip feeder (4) is open-circuited, passes across the high-impedance slot (9) to be connected with the metal ground (2) at the edge (11) through a short circuit pin (12). The antenna works under multiple frequency bands, the antenna size, the cross polarization and the shielding can be reduced, and isolation is improved.
Description
Technical field
The present invention relates to a kind of slot antenna, three poles of a kind of double frequency grid seam ground metallic vias Stepped Impedance
Change 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 polarization of a kind of double frequency grid seam ground metallic vias Stepped Impedance
Slot antenna, this antenna has been possible not only to multiple working band, and multiple frequency band can regulate respectively；This sky
Line can reduce the radiation length of the line of rabbet joint and the area on metal ground, and have suppression cross polarization, improve isolation,
Reduce the effect blocked.
Technical scheme: three polarization slot antennas of the double frequency grid seam ground metallic vias Stepped Impedance of the present invention include three
The grid seam ground metallic vias Stepped Impedance antenna of the individual single polarization being mutually perpendicular to place；The grid seam ground of each single polarization
The metal that metallic vias Stepped Impedance antenna includes medium substrate, be arranged on medium substrate and the radiation line of rabbet joint,
Microstrip feed line；The one side of medium substrate is metal ground, and the another side of medium substrate is the conduction band of microstrip feed line；Gold
Having the radiation line of rabbet joint on possession, 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；Metal
The grid slot array that the most a plurality of parallel gate seam is constituted, the shape of grid seam is rectangle, and grid seam is positioned at the four of the radiation line of rabbet joint
In week, grid seam is mutually perpendicular to the radiation line of rabbet joint；The short at one end of grid seam；The other end open circuit of grid seam, is positioned at medium
The edge of substrate；Two terminal shortcircuits of the radiation line of rabbet joint；Radiating 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 characteristic impedance step-down of radiation line of rabbet joint mid portion, 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 constitutes Stepped Impedance radius together with the low-resistance line of rabbet joint
Seam, produces a relatively low low frequency operation frequency band of frequency and the higher high-frequency work frequency band of a frequency；Metallization
Via passes through medium substrate, one with metal be connected, other end is at the another side of medium substrate；Metal ground is also
Being the ground plane of described microstrip feed line, one end of microstrip feed line is the port of antenna, the conduction band of microstrip feed line
The other end strides across the high resistant line of rabbet joint, at the edge of the high resistant line of rabbet joint, 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.
Change the spacing of adjacent gate seam in grid slot array, the width of grid seam, grid seam short-circuit end from the radiation line of rabbet joint 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.
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 electrical length of grid seam should not be taken at 1/4th, to avoid causing resonance radiation, causes cross-polarized
Rise.
The work frequency of the low frequency operation frequency band of three polarization slot antennas of double frequency grid seam ground metallic vias Stepped Impedance
The operating frequency of rate and high-frequency work frequency band is mainly determined by the resonant frequency of the radiation line of rabbet joint, but the chi on metal ground
The operating frequency of antenna and matching degree can also be adjusted by very little, microstrip feed line conduction band in the position of the radiation line of rabbet joint
Joint.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 radiation line of rabbet joint of Stepped Impedance, no
Only make antenna miniaturization, reduce cross polarization, also reduce the size on metal ground, improve isolation and reduce
The occlusion effect on metal ground, but also so that antenna has multiple working band, and change the low-resistance line of rabbet joint
With relative length and the impedance of the high resistant line of rabbet joint, the position of two working bands can be adjusted respectively.Metal ground
Grid seam becomes periodically loading to radius slit, makes again to radiate the line of rabbet joint and becomes periodic slow-wave structure, enters
One step reduces 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 is on the ground along the electric current in radiation line of rabbet joint direction, and makes the remaining CURRENT DISTRIBUTION along radiation line of rabbet joint direction
More concentrate, thus reduce cross-polarized radiation, improve the isolation between antenna port, also reduce gold
The size in possession, reduces the occlusion effect on metal ground.
Beneficial effect: the double frequency grid of the present invention stitch the useful of three polarization slot antennas of ground metallic vias Stepped Impedance
Effect is, this antenna can reduce the electric size of whole antenna, realize miniaturization, and this antenna is possible not only to simultaneously
There is multiple frequency band, and multiple frequency band can regulate respectively, also there is the cross polarization of suppression antenna, improve end
Isolate between Kou, and reduce the effect blocked on metal ground.
Accompanying drawing explanation
Fig. 1 is three polarization slot antenna overall structure schematic diagrams of double frequency grid seam ground metallic vias Stepped Impedance.
Fig. 2 be double frequency grid seam ground metallic vias Stepped Impedance three polarization slot antennas in single polarization grid seam ground gold
Belong to the structural representation of via Stepped Impedance antenna.
Figure has: medium substrate 1, metal ground 2, radiation the line of rabbet joint 3, microstrip feed line 4, conduction band 5, grid seam 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 grid seam ground 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 line of rabbet joint skies of double frequency grid seam ground metallic vias Stepped Impedance
Line includes the grid seam ground metallic vias Stepped Impedance antenna 13 of three single polarizations being mutually perpendicular to place；Each list
The grid seam ground metallic vias Stepped Impedance antenna 13 of polarization includes medium substrate 1, is arranged on medium substrate 1
Metal ground 2 and radiation the line of rabbet joint 3, microstrip feed line 4；The one side of medium substrate 1 is metal ground 2, medium base
The another side of plate 1 is the conduction band 5 of microstrip feed line 4；The radiation line of rabbet joint 3 is had on metal ground 2, the radiation line of rabbet joint 3
Shape is rectangle, and the radiation line of rabbet joint 3 is positioned at the center on metal ground 2；A plurality of parallel gate seam 6 composition on metal ground 2
Grid stitch 6 arrays, 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 and spoke
Penetrate the line of rabbet joint 3 to be mutually perpendicular to；The short at one end of grid seam 6；The other end open circuit of grid seam 6, is positioned at medium substrate 1
Edge；Two terminal shortcircuits of the radiation line of rabbet joint 3；Radiating the line of rabbet joint 3 mid portion, two edges of its line of rabbet joint,
There are 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 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；Metal ground 2 is also the ground plane of described microstrip feed line 4, the one of microstrip feed line 4
End is the port 10 of antenna, and the other end of the conduction band 5 of microstrip feed line 4 strides across the high resistant line of rabbet joint 9, at the high resistant line of rabbet joint
The edge 11 of 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.
Change that grid stitch the spacing of the seam of adjacent gate in 6 arrays 6, the width of grid seam 6, grid stitch 6 short-circuit ends from radiation
The distance of the line of rabbet joint 3, thus it is possible to vary the electricity of the operating frequency of antenna, the width of working band and the radiation line of rabbet joint 3 is long
Degree.
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 electrical length of grid seam 6 should not be taken at 1/4th, to avoid causing resonance radiation, causes cross polarization
Rising.
The work frequency of the low frequency operation frequency band of three polarization slot antennas of double frequency grid seam ground metallic vias Stepped Impedance
The operating frequency of rate and high-frequency work frequency band is mainly determined by the resonant frequency of the radiation line of rabbet joint 3, but metal ground 2
Size, microstrip feed line 4 conduction band 5 can also be to the work frequency of antenna in the radiation position of the line of rabbet joint 3 and width
Rate 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 makes antenna miniaturization, reduces cross polarization, also reduce gold
The size in possession 2, improves isolation and reduces the occlusion effect on metal ground 2, but also so that antenna has
Multiple working bands, 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
To adjust the position of two working bands respectively.The radiation line of rabbet joint 3 is formed periodically by the grid seam 6 on metal ground 2
Loading, again make radiate the line of rabbet joint 3 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 radiation line of rabbet joint on metal ground 2
The electric current in 3 directions, and make the more concentration along the remaining CURRENT DISTRIBUTION radiating the line of rabbet joint 3 direction, thus subtract
Little cross-polarized radiation, improves the isolation between antenna port, also reduces the size on metal ground 2,
Reduce the occlusion effect on metal ground 2.
In technique, three polarization slot antennas of double frequency grid seam ground metallic vias Stepped Impedance both can use commonly
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 grommet, the shape of metal throuth hole can be circular, it is also possible to is square or other shapes.Manufacturing
On, the grid seam ground metallic vias Stepped Impedance antenna 13 of three single polarizations can be mutually perpendicular to install by draw-in groove
Together, 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 (6)
1. three polarization slot antennas of a double frequency grid seam ground metallic vias Stepped Impedance, it is characterised in that this sky
Line includes grid seam ground metallic vias Stepped Impedance antenna (13) of three single polarizations being mutually perpendicular to place；Each
Grid seam ground metallic vias Stepped Impedance antenna (13) of single polarization include medium substrate (1), are arranged on medium base
Metal ground (2) on plate (1) and the radiation line of rabbet joint (3), microstrip feed line (4)；The one of medium substrate (1)
Face is metal ground (2), and the another side of medium substrate (1) is the conduction band (5) of microstrip feed line (4)；Metal ground
(2) having the radiation line of rabbet joint (3) on, the shape of the radiation line of rabbet joint (3) is rectangle, and the radiation line of rabbet joint (3) is positioned at gold
The center in possession (2)；Grid seam (6) array that upper a plurality of parallel gate seam (6) of metal ground (2) is constituted, grid
The shape of seam (6) is rectangle, and grid seam is positioned at the surrounding of the radiation line of rabbet joint (3), grid seam (6) and the radiation line of rabbet joint
(3) it is mutually perpendicular to；The short at one end of grid seam (6)；The other end open circuit of grid seam (6), is positioned at medium base
The edge of plate (1)；Two terminal shortcircuits of the radiation line of rabbet joint (3)；At the radiation line of rabbet joint (3) mid portion, its groove
Two edges of seam, have two rows to metallize via (7) array so that the spy of the radiation line of rabbet joint (3) mid portion
Property impedance step-down, formed 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) 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；Jie is passed through in metallization via (7)
Matter substrate (1), 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), and one end of microstrip feed line (4) is the end of antenna
Mouth (10), the other end of the conduction band (5) of microstrip feed line (4) strides across the high resistant line of rabbet joint (9), at the high resistant line of rabbet joint
(9) edge (11), is connected with metal ground (2) by Shorted post (12).
The three polarization lines of rabbet joint of a kind of double frequency grid the most according to claim 1 seam ground metallic vias Stepped Impedance
Antenna, it is characterised in that change thickness, pcrmeability and the dielectric constant of medium substrate (1), thus it is possible to vary high
The resistance 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)
Impedance 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.
The three polarization lines of rabbet joint of a kind of double frequency grid the most according to claim 1 seam ground metallic vias Stepped Impedance
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.
The three polarization lines of rabbet joint of a kind of double frequency grid the most according to claim 1 seam ground metallic vias Stepped Impedance
Antenna, it is characterised in that change the adjacent gate seam spacing of (6), the width of grid seam (6) in grid seam (6) array
Degree, grid seam (6) short-circuit end is from the distance of the radiation line of rabbet joint (3), thus it is possible to vary the operating frequency of antenna, work
The width of frequency band and the electrical length of the radiation line of rabbet joint (3).
The three polarization lines of rabbet joint of a kind of double frequency grid the most according to claim 1 seam ground metallic vias Stepped Impedance
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.
The three polarization lines of rabbet joint of a kind of double frequency grid the most according to claim 1 seam ground metallic vias Stepped Impedance
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 groove can be regulated
The characteristic impedance of seam (9), 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218388.1A CN105896046A (en) | 2016-04-08 | 2016-04-08 | Three-polarization slot antenna with dual-frequency gate gap ground metal via hole step impedance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218388.1A CN105896046A (en) | 2016-04-08 | 2016-04-08 | Three-polarization slot antenna with dual-frequency gate gap ground metal via hole step impedance |
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| Publication Number | Publication Date |
|---|---|
| CN105896046A true CN105896046A (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610218388.1A Pending CN105896046A (en) | 2016-04-08 | 2016-04-08 | Three-polarization slot antenna with dual-frequency gate gap ground metal via hole step impedance |
Country Status (1)
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| CN (1) | CN105896046A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544713A (en) * | 2012-02-24 | 2012-07-04 | 重庆信科设计有限公司 | Frequency-reconfigurable ultra broad band antenna based on planar bi-layer section electromagnetic slit structure |
| CN104124527A (en) * | 2014-07-22 | 2014-10-29 | 南京邮电大学 | High-isolation slot antenna array |
| CN104134871A (en) * | 2014-07-22 | 2014-11-05 | 南京邮电大学 | High-isolation semi-groove slot antenna array |
| CN104638367A (en) * | 2015-02-09 | 2015-05-20 | 深圳市大疆创新科技有限公司 | Dual-band microstrip antenna |
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2016
- 2016-04-08 CN CN201610218388.1A patent/CN105896046A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544713A (en) * | 2012-02-24 | 2012-07-04 | 重庆信科设计有限公司 | Frequency-reconfigurable ultra broad band antenna based on planar bi-layer section electromagnetic slit structure |
| CN104124527A (en) * | 2014-07-22 | 2014-10-29 | 南京邮电大学 | High-isolation slot antenna array |
| CN104134871A (en) * | 2014-07-22 | 2014-11-05 | 南京邮电大学 | High-isolation semi-groove slot antenna array |
| CN104638367A (en) * | 2015-02-09 | 2015-05-20 | 深圳市大疆创新科技有限公司 | Dual-band microstrip antenna |
Non-Patent Citations (1)
| Title |
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| 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: 20160824 |