CN109346834A - SIGW circular polarisation slot antenna - Google Patents
SIGW circular polarisation slot antenna Download PDFInfo
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- CN109346834A CN109346834A CN201811372835.4A CN201811372835A CN109346834A CN 109346834 A CN109346834 A CN 109346834A CN 201811372835 A CN201811372835 A CN 201811372835A CN 109346834 A CN109346834 A CN 109346834A
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- dielectric plate
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- gap
- microstrip line
- plate
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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
-
- 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
- H01Q1/50—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
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- Waveguide Aerials (AREA)
Abstract
Substrate of the present invention integrates gap waveguide (SIGW) circular polarized antenna, constitutes substrate using three blocks of dielectric-slabs and integrates gap waveguide antenna；SIGW is made of three layers of dielectric-slab: being had the underlying dielectric plate of electro-magnetic bandgap, there is the top dielectric plate of metal coating and is separated the interlayer plate (gap) of upper layer and lower layer dielectric-slab.It etched a rectangular metal gap on the metal layer of the top dielectric plate of SIGW, circular polarization radiation generated using the microstrip line excitation rectangular aperture extended to below rectangular aperture, forms SIGW circular polarisation slot antenna.The advantages that SIGW circular polarisation slot antenna of the present invention has structure simple, and strong antijamming capability, easy processing is easy of integration, broader bandwidth, can be used as 5G millimeter-wave communication system antenna.
Description
Technical field
The invention belongs to radio antenna, it is related to the SIGW circular polarisation slot antenna based on PCB.
Background technique
Circular polarized antenna since it is with good compatibility there is good anti-interference ability to be widely used in leading
In multiple and different scenes such as satellite, radar and mobile communication of navigating.Up to the present, in the circular polarized antenna of millimere-wave band work
Existing many reports.These antenna can be roughly divided into micro-strip circular polarized antenna, metal rectangular waveguide (RW) circular polarized antenna and base
Piece integrated waveguide (SIW) circular polarized antenna.But used in face of millimere-wave band, traditional circular polarized antenna there are some problems,
For example the structure of pure metal is difficult to manufacture in millimere-wave band, the electromagnetic shielding performance of substrate integration wave-guide (SIW) is not strong, structure is multiple
It is miscellaneous.
In recent years, substrate integrates gap waveguide (SIGW) transmission line and is suggested, which is realized based on multi-layer PCB,
It is divided into two kinds of structures of the SIGW with ridge and micro-strip SIGW.SIGW with ridge is generally made of two layers of PCB, upper layer PCB outer surface
Deposited copper constitutes perfect electric conductor (PEC) entirely, and microstrip line is printed on lower layer PCB, has a series of metallization VIAs on microstrip line
It with lower-lying metal is connected to form a kind of structure of similar ridge, microstrip line two sides are periodic mushroom configurations to form ideal
Magnetic conductor (PMC).Due to forming EBG between PEC and PMC, electromagnetic wave (quasi- TEM wave) can only be propagated along microstrip line.But due to
Micro-strip ridge and mushroom configuration are on same layer pcb board in SIGW with ridge, so its micro-strip ridge will receive the system of mushroom configuration
, there is limitation in practical applications in about inconvenient cabling.
Micro-strip SIGW is made of three layers of pcb board.Copper is covered entirely and forms PEC, inside then printed microstrip in the outside of upper layer pcb board
Line all prints mushroom periodic structure to constitute PMC, in the one piece of blank medium in upper layer and bottom Intercalation reaction on bottom pcb board
Plate (middle layer) separates upper layer and bottom.Due to having the partition of middle layer, microstrip line flexible layout, it is not necessary to worry by the period
Structural constraint.When this SIGW work, quasi- TEM wave can pass in the medium substrate between microstrip line and PEC along microstrip line
It broadcasts, this operating mode and the microstrip line that medium buries are very similar.Similarly, EBG can be generated between PEC and PMC to prevent
The propagation of wave in the other direction, to guarantee the propagation of the quasi- TEM wave along microstrip line.
Substrate of the present invention integrates the circular polarized antenna of gap waveguide, using micro-strip SIGW Technology design circular polarized antenna, solution
The disadvantage that the certainly existing circular polarized antenna structure based on PCB Technology design is complicated, electromagnetic shielding performance is not strong.
The content of present invention has no open report same as the present invention by literature search.
Summary of the invention
The purpose of the present invention is to propose to the circular polarized antennas that substrate integrates gap waveguide, to overcome existing circular polarisation day
The disadvantages of cable architecture is complicated, electromagnetic shielding performance is not strong, can apply to the service band of 5G millimeter-wave communication system.
SIGW circular polarisation slot antenna of the present invention, which is characterized in that including three layers of dielectric-slab: top dielectric plate (1), it is intermediate
Layer dielectric-slab (2), layer dielectric plate (3), in which:
A. the upper surface of top dielectric plate (1) is printed with the first copper-clad (9)；First copper-clad is etched with rectangular aperture on (9)
(8), lower surface is printed with feeding microstrip line (6)；Feeding microstrip line (6) extends to below rectangular aperture；
B. the circular patch (10) of layer dielectric plate (3) upper surface, lower surface are printed with the second copper-clad (4)；Layer dielectric plate
(3) it is equipped with metallic vias (5) on, forms electro-magnetic bandgap (EBG) array of structures together with the circular patch (10) of upper surface；
C. interlayer plate (2) separates top dielectric plate (1) and layer dielectric plate (3), and top dielectric plate (1) and lower layer is made to be situated between
Scutum forms gap between (3)；
D. top dielectric plate (1), interlayer plate (2), layer dielectric plate (3) are bonded together, and form an entirety；
E. the first copper-clad (9) on top dielectric plate (1) is perfect electric conductor (PEC), and layer dielectric plate (3) is equivalent to ideal
Magnetic conductor (PMC)；
F. top dielectric plate (1), interlayer plate (2), layer dielectric plate (3), first be printed on top dielectric plate are applied
Layers of copper (9) and feeding microstrip line (6), the mushroom EBG array structure being produced on layer dielectric plate, and it is printed on lower layer Jie
The second copper-clad (4) on scutum constitutes substrate and integrates gap waveguide (SIGW) structure.
The SIGW circular polarisation slot antenna, it is characterised in that: integrate the top dielectric plate (1) of gap waveguide in substrate
Open rectangular aperture (8) on first copper-clad (9) and extend feeding microstrip line to below rectangular aperture (8), and rectangular aperture (8) with
Feeding microstrip line (6) has one 45 ° of angles.
2. the feeding microstrip line (6) of the SIGW circular polarisation slot antenna, top dielectric plate (1) lower surface extends to rectangle
Below gap (8), the gap is motivated to generate radiation；When feeding microstrip line (6) extends to gap middle position, it can obtain preferably
Return loss and axis ratio；When gap (8), length and width ratio is fixed, when being lengthened or shortened feeding microstrip line (6) length, return loss
It changes greatly, but axis is smaller than changing.
The SIGW circular polarisation slot antenna, angle at 45 ° between rectangular aperture (8) and feeding microstrip line (6) generate two
Orthogonal electric field component forms circular polarisation electromagnetic wave.
The SIGW circular polarisation slot antenna needs suitably to choose mushroom EBG to obtain required working band
In the period of the size and mushroom EBG structure of circular patch (5) and metallic vias (10), make the stopband of EBG structure in structure
The electromagnetic wave frequency band that gap waveguide (SIGW) is propagated is integrated with substrate to be adapted.
The SIGW circular polarisation slot antenna can obtain preferable axis ratio when broadside and the ratio of long side are 0.75
As a result；When the long boundary values of gap (8) is fixed, when the broadside of gap (8) and the value of long side increase, frequency point of the minimum axis than place
Mobile to low frequency end, band inner shaft is than increasing；When the value of the broadside of gap (8) and long side reduces, frequency point where minimum axis ratio to
Front end is mobile, and band inner shaft ratio can also increase.
Compared with the prior art, the invention has the following advantages:
1, structure is simple；
2, broader bandwidth；
3, electromagnetic shielding performance is strong；
4, easily integrated with other planar circuits.
Detailed description of the invention
Fig. 1 is SIGW circular polarisation slot antenna configurations schematic diagram of the present invention.
Fig. 2 is SIGW circular polarisation slot antenna top dielectric plate (1) upper surface of the present invention schematic diagram.
Fig. 3 is SIGW circular polarisation slot antenna top dielectric plate (1) lower surface of the present invention schematic diagram.
Fig. 4 is SIGW circular polarisation slot antenna layer dielectric plate (1) upper surface of the present invention schematic diagram.
Fig. 5 is SIGW circular polarisation slot antenna layer dielectric plate (1) lower surface of the present invention schematic diagram.
Fig. 6 is return loss, axis ratio and the gain of SIGW circular polarisation slot antenna of the present invention.
Specific embodiment
The technical scheme of the present invention will be explained in further detail With reference to embodiment.
As shown in Fig. 1, the purpose of the present invention is to propose to the circular polarized antenna that substrate integrates gap waveguide,
SIGW circular polarisation slot antenna of the present invention, which is characterized in that including three layers of dielectric-slab: top dielectric plate (1), middle layer are situated between
Scutum (2), layer dielectric plate (3), in which:
A. the upper surface of top dielectric plate (1) is printed with the first copper-clad (9)；First copper-clad is etched with rectangular aperture on (9)
(8), lower surface is printed with feeding microstrip line (6)；Feeding microstrip line (6) extends to below rectangular aperture；
B. the circular patch of layer dielectric plate (3) upper surface, lower surface are printed with the second copper-clad (4)；On layer dielectric plate (3)
Metallic vias (5) are equipped with, form electro-magnetic bandgap (EBG) array of structures together with the circular patch (10) of upper surface；
C. interlayer plate (2) separates top dielectric plate (1) and layer dielectric plate (3), and top dielectric plate (1) and lower layer is made to be situated between
Scutum forms gap between (3)；
D. top dielectric plate (1), interlayer plate (2), layer dielectric plate (3) are bonded together, and form an entirety；
E. the first copper-clad (9) on top dielectric plate (1) is perfect electric conductor (PEC), and layer dielectric plate (3) is equivalent to ideal
Magnetic conductor (PMC)；
F. top dielectric plate (1), interlayer plate (2), layer dielectric plate (3), first be printed on top dielectric plate are applied
Layers of copper (9) and feeding microstrip line (6), the mushroom EBG array structure being produced on layer dielectric plate, and it is printed on lower layer Jie
The second copper-clad (4) on scutum constitutes substrate and integrates gap waveguide (SIGW) structure.
The SIGW circular polarisation slot antenna, it is characterised in that: integrate the top dielectric plate (1) of gap waveguide in substrate
Open rectangular aperture (8) on first copper-clad (9) and extend feeding microstrip line to below rectangular aperture (8), and rectangular aperture (8) with
Feeding microstrip line (6) has one 45 ° of angles.
3. the feeding microstrip line (6) of the SIGW circular polarisation slot antenna, top dielectric plate (1) lower surface extends to square
Below shape gap (8), the gap is motivated to generate radiation；When feeding microstrip line (6) extends to gap middle position, can obtain compared with
Good return loss and axis ratio；When gap (8), length and width ratio is fixed, when being lengthened or shortened feeding microstrip line (6) length, echo damage
Consumption changes greatly, but axis is smaller than changing.
The SIGW circular polarisation slot antenna, angle at 45 ° between rectangular aperture (8) and feeding microstrip line (6) generate two
Orthogonal electric field component forms circular polarisation electromagnetic wave.
The SIGW circular polarisation slot antenna can obtain preferable axis ratio when broadside and the ratio of long side are 0.75
As a result；When the long boundary values of gap (8) is fixed, when the broadside of gap (8) and the value of long side increase, frequency point of the minimum axis than place
Mobile to low frequency end, band inner shaft is than increasing；When the value of the broadside of gap (8) and long side reduces, frequency point where minimum axis ratio to
Front end is mobile, and band inner shaft ratio can also increase.
Further, in order to illustrate the feasibility of above scheme, a specific example is given below.In the example, upper layer
The ratio value of rectangular aperture (8) broadside on dielectric-slab (1) and long side can obtain preferable gain and matching when being 0.75
Effect；Rectangular aperture (8) and feeding microstrip line (6) on top dielectric plate (1) have one 45 ° of angles, generate needed for circular polarisation
Two orthogonal electric field components;Mushroom EBG structure on layer dielectric plate (3) is 6 × 7 arrays.In the example, top dielectric
Plate (1) and interlayer plate (2) are all made of Rogers5880 plate, and thickness is respectively 0.508mm and 0.254mm, lower layer PCB
Plate is Rogers 4003C, with a thickness of 0.813mm；Emulation and test result show that -10dB the impedance bandwidth of the antenna is
About 5.3%) for 27.3-28.8 GHz(, gain is about 6dBi at 28GHz to 24.8-31.7GHz, 3dB axial ratio bandwidth.
Better embodiment of the invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be without departing from the purpose of the present invention
It makes a variety of changes.
Claims (6)
1. SIGW circular polarisation slot antenna of the present invention, which is characterized in that including three layers of dielectric-slab: top dielectric plate (1), middle layer
Dielectric-slab (2), layer dielectric plate (3), in which:
The upper surface of top dielectric plate (1) is printed with the first copper-clad (9)；First copper-clad is etched with rectangular aperture on (9)
(8), lower surface is printed with feeding microstrip line (6)；Feeding microstrip line (6) extends to below rectangular aperture；
The circular patch of layer dielectric plate (3) upper surface, lower surface are printed with the second copper-clad (4)；Layer dielectric plate is beaten on (3)
There are metallic vias (5), forms electro-magnetic bandgap (EBG) array of structures together with the circular patch (10) of upper surface；
Interlayer plate (2) separates top dielectric plate (1) and layer dielectric plate (3), makes top dielectric plate (1) and layer dielectric
Plate forms gap between (3)；
Top dielectric plate (1), interlayer plate (2), layer dielectric plate (3) are bonded together, and form an entirety；
The first copper-clad (9) on top dielectric plate (1) is perfect electric conductor (PEC), and layer dielectric plate (3) is equivalent to ideal magnetic
Conductor (PMC)；
Top dielectric plate (1), interlayer plate (2), layer dielectric plate (3), the deposited copper of first be printed on top dielectric plate
Layer (9) and feeding microstrip line (6), the mushroom EBG array structure being produced on layer dielectric plate, and it is printed on layer dielectric
The second copper-clad (4) on plate constitutes substrate and integrates gap waveguide (SIGW) structure.
2. SIGW circular polarisation slot antenna according to claim 1, it is characterised in that: integrate the upper layer of gap waveguide in substrate
Rectangular aperture (8) is opened on the first copper-clad (9) of dielectric-slab (1) and is extended below feeding microstrip line to rectangular aperture (8), and square
There are one 45 ° of angles in shape gap (8) and feeding microstrip line (6).
3. the SIGW circular polarisation slot antenna, it is characterised in that: the feeding microstrip line (6) of top dielectric plate (1) lower surface prolongs
It reaches below rectangular aperture (8), the gap is motivated to generate radiation；It, can be with when feeding microstrip line (6) extends to gap middle position
Obtain preferable return loss and axis ratio；When gap (8), length and width ratio is fixed, when being lengthened or shortened feeding microstrip line (6) length,
Return loss changes greatly, but axis is smaller than changing.
4. the SIGW circular polarisation slot antenna, it is characterised in that: folder at 45 ° between rectangular aperture (8) and feeding microstrip line (6)
Angle generates two orthogonal electric field components, forms circular polarisation electromagnetic wave.
5. SIGW circular polarisation slot antenna according to claim 1, it is characterised in that: in order to obtain required working band,
Need suitably to choose the size and mushroom EBG structure of circular patch (10) and metallic vias (5) in mushroom EBG structure
Period, so that the stopband of EBG structure and substrate is integrated gap waveguide (SIGW) electromagnetic wave frequency band for being propagated and be adapted.
6. SIGW circular polarisation slot antenna according to claim 1, it is characterised in that: when the ratio of broadside and long side is
When 0.75, preferable axis can be obtained and compare result；When the long boundary values of gap (8) is fixed, the broadside of gap (8) and the value of long side
When raising, minimum axis is more mobile to low frequency end than the frequency point at place, and band inner shaft is than increasing；When the broadside of gap (8) and the value of long side
When reduction, frequency point where minimum axis ratio is mobile to front end, and band inner shaft ratio can also increase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372835.4A CN109346834A (en) | 2018-11-19 | 2018-11-19 | SIGW circular polarisation slot antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372835.4A CN109346834A (en) | 2018-11-19 | 2018-11-19 | SIGW circular polarisation slot antenna |
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| Publication Number | Publication Date |
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| CN109346834A true CN109346834A (en) | 2019-02-15 |
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| CN201811372835.4A Withdrawn CN109346834A (en) | 2018-11-19 | 2018-11-19 | SIGW circular polarisation slot antenna |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860989A (en) * | 2019-04-02 | 2019-06-07 | 云南大学 | Circular polarisation slot antenna based on integral substrate gap waveguide |
| CN109860990A (en) * | 2019-04-10 | 2019-06-07 | 云南大学 | Broadband dual polarized antenna based on integral substrate gap waveguide |
| CN109935965A (en) * | 2019-04-10 | 2019-06-25 | 云南大学 | Integral substrate gap waveguide ultra-wideband antenna |
| CN109950693A (en) * | 2019-04-12 | 2019-06-28 | 云南大学 | Integral substrate gap waveguide circular polarisation gap traveling-wave array antenna |
| CN109950688A (en) * | 2019-04-12 | 2019-06-28 | 云南大学 | Microstrip type ISGW circular polarisation gap travelling-wave aerial |
| CN109950694A (en) * | 2019-04-12 | 2019-06-28 | 云南大学 | ISGW circular polarisation gap travelling-wave aerial with ridge |
| CN110165400A (en) * | 2019-06-05 | 2019-08-23 | 云南大学 | Integral substrate gap waveguide feed gaps couple super surface linear polarized antenna |
| CN110165401A (en) * | 2019-06-05 | 2019-08-23 | 云南大学 | Integral substrate gap waveguide feed gaps couple super surface circular polarized antenna |
| CN110197947A (en) * | 2019-06-05 | 2019-09-03 | 云南大学 | Integral substrate gap waveguide feed gaps couple super skin antenna |
| CN110829032A (en) * | 2019-05-14 | 2020-02-21 | 云南大学 | Slot patch antenna based on integrated substrate gap waveguide |
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2018
- 2018-11-19 CN CN201811372835.4A patent/CN109346834A/en not_active Withdrawn
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860989A (en) * | 2019-04-02 | 2019-06-07 | 云南大学 | Circular polarisation slot antenna based on integral substrate gap waveguide |
| CN109860990A (en) * | 2019-04-10 | 2019-06-07 | 云南大学 | Broadband dual polarized antenna based on integral substrate gap waveguide |
| CN109935965A (en) * | 2019-04-10 | 2019-06-25 | 云南大学 | Integral substrate gap waveguide ultra-wideband antenna |
| CN109860990B (en) * | 2019-04-10 | 2024-01-26 | 云南大学 | Broadband dual polarized antenna based on integrated substrate gap waveguide |
| CN109935965B (en) * | 2019-04-10 | 2024-01-26 | 云南大学 | Integrated substrate gap waveguide ultra-wideband antenna |
| CN109950694B (en) * | 2019-04-12 | 2023-10-27 | 云南大学 | ISGW circular polarization gap travelling wave antenna with ridge |
| CN109950693B (en) * | 2019-04-12 | 2023-10-27 | 云南大学 | Integrated substrate gap waveguide circular polarization gap traveling wave array antenna |
| CN109950688B (en) * | 2019-04-12 | 2023-10-27 | 云南大学 | Microstrip ISGW circular polarization gap traveling wave antenna |
| CN109950694A (en) * | 2019-04-12 | 2019-06-28 | 云南大学 | ISGW circular polarisation gap travelling-wave aerial with ridge |
| CN109950688A (en) * | 2019-04-12 | 2019-06-28 | 云南大学 | Microstrip type ISGW circular polarisation gap travelling-wave aerial |
| CN109950693A (en) * | 2019-04-12 | 2019-06-28 | 云南大学 | Integral substrate gap waveguide circular polarisation gap traveling-wave array antenna |
| CN110829032A (en) * | 2019-05-14 | 2020-02-21 | 云南大学 | Slot patch antenna based on integrated substrate gap waveguide |
| CN110829032B (en) * | 2019-05-14 | 2024-01-26 | 云南大学 | Gap patch antenna based on integrated substrate gap waveguide |
| CN110165400A (en) * | 2019-06-05 | 2019-08-23 | 云南大学 | Integral substrate gap waveguide feed gaps couple super surface linear polarized antenna |
| CN110165401A (en) * | 2019-06-05 | 2019-08-23 | 云南大学 | Integral substrate gap waveguide feed gaps couple super surface circular polarized antenna |
| CN110197947A (en) * | 2019-06-05 | 2019-09-03 | 云南大学 | Integral substrate gap waveguide feed gaps couple super skin antenna |
| CN110197947B (en) * | 2019-06-05 | 2024-01-26 | 云南大学 | Integrated substrate gap waveguide feed gap coupling super-surface antenna |
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Application publication date: 20190215 |