CN110071367A - A kind of dual polarization Shared aperture broad-band antenna - Google Patents
A kind of dual polarization Shared aperture broad-band antenna Download PDFInfo
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- CN110071367A CN110071367A CN201910340085.0A CN201910340085A CN110071367A CN 110071367 A CN110071367 A CN 110071367A CN 201910340085 A CN201910340085 A CN 201910340085A CN 110071367 A CN110071367 A CN 110071367A
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- substrate
- antenna
- dual polarization
- shared aperture
- width
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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
- 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
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Abstract
The invention discloses a kind of dual polarization Shared aperture broad-band antennas, including antenna；Wherein: the antenna includes first substrate, the second substrate, rectangular patch, cross recess, feed dipole and floor.The rectangular patch, cross recess are set to the upper surface of the first substrate, and feed dipole is set to the lower surface of the first substrate, and the floor is set to the lower surface of the second substrate.The antenna, which has, is fed the multiple-working mode motivated port while sharing bore by the rectangular patch, cross recess and feed dipole；The present invention provides a kind of dual polarization Shared aperture broad-band antenna, can cover two frequency ranges of Sub-6GHz.The settings of various modes is motivated while sharing bore by rectangular patch, cross recess and feed dipole, bandwidth is effectively expanded while antenna miniaturization.
Description
Technical field
The present invention relates to wireless communication technology field, a kind of dual polarization Shared aperture broad-band antenna in particular.
Background technique
5G communication enter business phase arrive fully developed maturation of millimetre-wave attenuator transition stage, 5G mobile communication with show
There are mobile communication, including 4G, good transition is a particularly significant problem between Wi-Fi, WiMAX etc..This is also Ministry of Industry and Information
When providing 5G communication experiment frequency range, Sub-6GHz (3.3GHz-3.6GHz, 4.8GHz-5.0GHz) microwave frequency band is incorporated
Reason.When designing antenna for base station, its index request is not only considered, but also to consider the prospect of its practical application.Currently
It is required that the antenna impedance bandwidth of antenna for base station is big, to adapt to the competition of the frequency spectrum resource of growing tension；It is required that antenna for base station is small
Type is to reduce the cost of entire base station construction and maintenance and adapt to complicated application environment.Dual polarized antenna can effectively reduce
The influence of channel.The intensive covering of 5G requires antenna for base station to have low cost.Shared aperture broad-band antenna has apparent advantage, such as
Impedance bandwidth is wider, it is small in size, light-weight, be easily installed.
Realizing miniaturization while expanding the beamwidth of antenna is the current problem to be solved of those skilled in the art.
Summary of the invention
It is an object of the invention to overcome the shortcomings of above-mentioned prior art, a kind of dual polarization Shared aperture broad-band antenna is provided,
The setting for having been motivated various modes simultaneously by rectangular patch, cross recess and feed dipole, so that antenna miniaturization is same
Time Bandwidth is effectively expanded.
What the invention is realized by the following technical scheme:
A kind of dual polarization Shared aperture broad-band antenna, including antenna；Wherein: the antenna includes first substrate, the second substrate,
Rectangular patch, cross recess, feed dipole and floor.The rectangular patch, cross recess are set to the upper surface of the first substrate,
Feed dipole is set to the lower surface of the first substrate, and the floor is set to the lower surface of the second substrate.The antenna
Have and is fed a variety of Working moulds motivated port while sharing bore by the rectangular patch, cross recess and feed dipole
Formula.
Further, the multiple-working mode includes trough pattern, patch pattern and dipole subpattern.
Further, the length value of the length L1 of the first substrate is the 0.87 λ c of λ c~1.00, the width value of width W1
For 0.87 λ of λ c~1.00 c；The length value of the length L2 of the second substrate is the 1.20 λ c of λ c~1.47, the width value of width W2
For the 1.20 λ c of λ c~1.47, wherein λ c is the wavelength of center frequency point in free space.Preferably, the length L1=of first substrate
0.93 λ c, width W1=0.93 λ c；Length L2=1.33 λ c, width W2=1.33 the λ c of the second substrate.It should be noted that institute
The size selection for stating first substrate and the second substrate is one of optimal technical scheme, is not restrictive rule
It is fixed.
Further, it is 4.40 that the first substrate and the material of the second substrate, which are relative dielectric constant, loss
Angle is just being cut to 0.02 FR4 material, the first substrate and the second substrate with a thickness of 1.20mm~2.00mm, preferably
It is 4.40 that ground, the first substrate and the second substrate, which are all made of relative dielectric constant, the FR4 material that loss angle tangent is 0.02
Material, the thickness h 1=h2=1.60mm of the first substrate and the second substrate.
Further, the first substrate is set to the top of the second substrate, the first substrate and second base
The spacing H that plate is placed is 0.11 λ of λ c~0.16 c.Preferably, the spacing H that first substrate is placed with the second substrate is preferably
0.16λc；It should be noted that the spacing H that first substrate and the second substrate are placed is preferably 0.16 λ c, it is not limitation
The regulation of property.
Further, it is 0.52 λ of λ c~0.65 c that the length L3 of the rectangular patch, which is 0.52 λ c~0.65 λ c, width W3,.
Preferably, length L3=0.59 λ c, width W3=0.59 the λ c of rectangular patch；It but is not to the restricted of rectangular patch size
Regulation.
Further, it is 0.07 λ of λ c~0.12 c that the length L4 of the cross recess, which is 0.20 λ c~0.25 λ c, width W4,.It is excellent
Selection of land, length L4=0.23 λ c, width W4=0.09 the λ c of the cross recess；It but is not the limitation to the cross recess size
Property regulation.
Further, it is 0.40 λ of λ c~0.53 that the brachium L5 of feed dipole, which is 0.10 λ c~0.13 λ c, brachium L6,
C, width W5 are 0.010 λ of λ c~0.016 c.Preferably, brachium L5=0.12 the λ c, brachium L6=0.47 of feed dipole
λ c, width W5=0.013 λ c；It but is not the restriction provision to the sub- size of the feed dipole
Further, the working frequency range of the antenna covers Sub-6GHz communications band；The working frequency range packet of the antenna
Including 3.30GHz~3.60GHz and 4.80GHz~5.00GHz, gain is respectively 9.92dBi~10.05dBi, 8.55dBi~
9.16dBi。
Beneficial effects of the present invention:
A kind of dual polarization Shared aperture broad-band antenna provided by the invention, the antenna include first substrate, the second substrate, square
Shape patch, cross recess, feed dipole and floor；Rectangular patch and cross recess are set to the upper surface of first substrate, feed dipole
Son is set to the lower surface of first substrate, and floor is set to the lower surface of the second substrate, and the spacing H of two pieces of substrates is 0.16 λ c；Cross
Slot, rectangular patch and feed dipole have been motivated various modes simultaneously, so that keeping expanding while antenna size and section
The beamwidth of antenna.Antenna lowest gain in working band is 8.55dBi, and highest-gain is up to 10.05dBi.
Detailed description of the invention
Fig. 1 is miniaturization Shared aperture broadband antenna structure schematic diagram provided in an embodiment of the present invention；
Fig. 2 is the patch top view of antenna described in Fig. 1；
Fig. 3 is the side view of antenna described in Fig. 1；
Fig. 4 is surface current distribution of the antenna described in Fig. 1 in typical frequencies；
Fig. 5 is the S parameter curve graph and gain diagram of antenna described in Fig. 1；
Fig. 6 is the antenna pattern of antenna described in Fig. 1.
Wherein: 1- first substrate, 2- the second substrate, 3- rectangular patch, 4- cross recess, 5- feed dipole, the floor 6-.
Specific embodiment
The present invention is further illustrated With reference to embodiment.Wherein, attached drawing only for illustration,
What is indicated is only schematic diagram, rather than pictorial diagram, should not be understood as the limitation to this patent；Reality in order to better illustrate the present invention
Example is applied, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；It is retouched in of the invention
In stating, it is to be understood that if the orientation or positional relationship for having the instructions such as term " on ", "lower", "left", "right" is based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore positional relationship is described in attached drawing
Term only for illustration, should not be understood as the limitation to this patent, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
Such as the embodiment that Fig. 1 to 6 is a kind of dual polarization Shared aperture broad-band antenna, wherein Fig. 1 to 3 indicates the knot of the antenna
Structure schematic diagram, the antenna include first substrate 1, the second substrate 2, rectangular patch 3, cross recess 4, feed dipole 5 and floor
6；The rectangular patch 3, cross recess 4 are set to the upper surface of the first substrate 1, and feed dipole 5 is set to described first
The lower surface of substrate 1, the floor 6 are set to the lower surface of the second substrate 2；The antenna be equipped with by the rectangular patch 3,
The multiple-working mode that cross recess 4 and feed dipole 5 have been motivated simultaneously.
Specifically, multiple-working mode includes trough pattern, patch pattern and dipole subpattern in this embodiment scheme.
Specifically, in this embodiment scheme, the working frequency range of antenna be 3.30GHz~3.60GHz and 4.80GHz~
5.00GHz uses wavelength corresponding to centre frequency 4.00GHz for 75mm.
Specifically, the length value of the length L1 of the first substrate 1 is 65mm~75mm, width in this embodiment scheme
The width value of W1 is 65mm~75mm；The length L2 length value of the second substrate 2 is 90mm~110mm, width W2 width value
For 90mm~110mm.
Specifically, in this embodiment scheme, the first substrate 1, the second substrate 2 material be relative dielectric constant
It is 4.40, the FR4 material that loss angle tangent is 0.02, with a thickness of 1.20mm~2.00mm.
Specifically, the first substrate 1 is set to the top of the second substrate 2, first base in this embodiment scheme
The spacing H that plate 1 and the second substrate 2 are placed is 8mm~12mm.
Specifically, the length value of the length L3 of the rectangular patch 3 is 39mm~49mm, width in this embodiment scheme
The width value of W3 is 39mm~49mm.
Specifically, in this embodiment scheme, the length L4 of the cross recess 4 is 15mm~19mm, width W4 be 5mm~
9mm。
Specifically, the brachium L5 of feed dipole 5 is 7.75mm~9.75mm, L6 30.00mm in this embodiment scheme
The width value of~40.00mm, width W5 are 0.8mm~1.2mm.
Specifically, in this embodiment scheme, the gain of antenna in 3.30GHz~3.60GHz frequency range for 9.92dBi~
10.05dBi；It is 8.55dBi~9.16dBi in 4.80GHz~5.00GHz frequency range.
It is specific as follows:
In this embodiment, the length L1=70mm of the first substrate 1, width W1=70mm.The length L2 of the second substrate 2
=100mm, width W2=100mm.First substrate 1 and first substrate 2 all use relative dielectric constant for 4.40, loss angle tangent
For 0.02 FR4 material, thickness h 1=h2=1.60mm.The length L3=44mm of rectangular patch 3, width W3=44mm.Cross
The length L4=17mm, L5=7mm of slot 4.The long L5=8.75mm of feed dipole 5, L6=35.00mm, width D w=1mm.
Fig. 4 is surface current distribution of the antenna embodiment of the present invention in typical frequencies.In 3.45GHz (a) phase
When being 80 °, nearby current amplitude is maximum for cross recess and dipole, when phase is 170 °, only trough pattern；Therefore in low-frequency range slot
Mode and dipole subpattern play a crucial role to the radiation of antenna；In 4.90GHz (b) figure, three modes radiate jointly, or even go out
Existing higher mode, therefore high band is mixing multi-mode radiation.
Fig. 5 is the S parameter curve graph and gain diagram of antenna embodiment of the present invention.In 3.24GHz~5.76GHz frequency range
Reflection coefficient is respectively less than -10dB.It is completely covered two frequency ranges under Sub-6G: 3.30GHz~3.60GHz and 4.80GHz~
5.00GHz.Gain is steady in working frequency range, and gain is 9.92dBi~10.05dBi in 3.30GHz~3.60GHz frequency range,
The mutual coupling of port 1 and port 2 is -48.51dB~-40.64dB；In 4.80GHz~5.00GHz frequency range gain be for
8.55dBi~9.16dBi, the mutual coupling of port 1 and port 2 are -47.00dB~-41.40dB.
Fig. 6 is the antenna pattern of antenna embodiment of the present invention.Dotted line is the directional diagram in the face xoz, and solid line is the face yoz
Directional diagram.The results show that no matter Antenna Operation in trough pattern, patch pattern or dipole subpattern, all keeps relative stability
Directional diagram, therefore inventive antenna has good radiation characteristic.
It is provided for the embodiments of the invention technical solution above to be described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention are expounded, the explanation of above embodiments is only applicable to help to understand this
The principle of inventive embodiments；At the same time, for those skilled in the art, according to an embodiment of the present invention, in specific embodiment party
There will be changes in formula and application range, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (9)
1. a kind of dual polarization Shared aperture broad-band antenna, including antenna；Including antenna, it is characterised in that: the antenna includes first
Substrate (1), the second substrate (2), rectangular patch (3), cross recess (4), feed dipole are sub (5) and floor (6)；The rectangular patch
(3) and cross recess (4) is respectively arranged on the upper surface of first substrate (1)；The feed dipole (5) is set to first substrate (1)
Lower surface；The floor (6) is set to the lower surface of the second substrate (2)；The antenna be equipped with by the rectangular patch (3),
Cross recess (4) and feed dipole (5) share the multiple-working mode that bore is fed port while having motivated.
2. a kind of dual polarization Shared aperture broad-band antenna according to claim 1, it is characterised in that: the operating mode includes
Trough pattern, patch pattern and dipole subpattern.
3. a kind of dual polarization Shared aperture broad-band antenna according to claim 1, it is characterised in that: the first substrate (1)
Length L1 length value be 0.87 λ c~1.00 λ c, width W1 width value be 0.87 λ of λ c~1.00 c；The second substrate
(2) width value that the length value of length L2 is 1.20 λ c~1.47 λ c, width W2 is the 1.20 λ c of λ c~1.47, during wherein λ c is
The wavelength of heart frequency point in free space.
4. a kind of dual polarization Shared aperture broad-band antenna according to claim 1, it is characterised in that: the first substrate (1)
Material with the second substrate (2) is that relative dielectric constant is 4.40, and the FR4 material that loss angle tangent is 0.02 is described
First substrate (1) and the second substrate (2) with a thickness of 1.20mm~2.00mm.
5. a kind of dual polarization Shared aperture broad-band antenna according to claim 1, it is characterised in that: the first substrate (1)
Set on the top of the second substrate (2), the spacing H of the first substrate (1) and the second substrate (2) placement is 0.11 λ c
~0.16 λ c.
6. a kind of dual polarization Shared aperture broad-band antenna according to claim 1, it is characterised in that: the rectangular patch (3)
Length L3 be 0.52 λ c~0.65 λ c, width W3 is 0.52 λ of λ c~0.65 c.
7. a kind of dual polarization Shared aperture broad-band antenna according to claim 1, it is characterised in that: the cross recess (4)
Length L4 is that 0.20 λ c~0.25 λ c, width W4 is 0.07 λ of λ c~0.12 c.
8. a kind of dual polarization Shared aperture broad-band antenna according to claim 1, it is characterised in that: feed dipole
(5) it is 0.010 λ of λ c~0.016 c that brachium L5, which is 0.40 λ c~0.53 λ c, width W5 for 0.10 λ c~0.13 λ c, brachium L6,.
9. a kind of dual polarization Shared aperture broad-band antenna according to claim 1, it is characterised in that: the work frequency of the antenna
Section covering Sub-6GHz communications band；The working frequency range of the antenna include 3.30GHz~3.60GHz and 4.80GHz~
5.00GHz, gain are respectively 9.92dBi~10.05dBi, 8.55dBi~9.16dBi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340085.0A CN110071367A (en) | 2019-04-25 | 2019-04-25 | A kind of dual polarization Shared aperture broad-band antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340085.0A CN110071367A (en) | 2019-04-25 | 2019-04-25 | A kind of dual polarization Shared aperture broad-band antenna |
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| Publication Number | Publication Date |
|---|---|
| CN110071367A true CN110071367A (en) | 2019-07-30 |
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|---|---|---|---|
| CN201910340085.0A Pending CN110071367A (en) | 2019-04-25 | 2019-04-25 | A kind of dual polarization Shared aperture broad-band antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871882A (en) * | 2021-08-31 | 2021-12-31 | 广东工业大学 | Multimode broadband filtering micro base station antenna |
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| JPH04122104A (en) * | 1990-09-13 | 1992-04-22 | Mitsubishi Electric Corp | Two-frequency shaped antenna |
| US20050057396A1 (en) * | 2001-12-19 | 2005-03-17 | Viktor Boyanov | Antenna element |
| CN201797044U (en) * | 2010-04-22 | 2011-04-13 | 山东科技大学 | Single-surface-mounted-chip dual-frequency dual-polarized microstrip antenna |
| CN105870606A (en) * | 2016-05-13 | 2016-08-17 | 华南理工大学 | Low-profile omni-directional circularly polarized antenna working at ISM frequency band |
| CN207233933U (en) * | 2017-04-25 | 2018-04-13 | 南京航空航天大学 | Wideband dual polarized electromagnetic dipole antenna |
| CN109149087A (en) * | 2018-08-22 | 2019-01-04 | 广东工业大学 | A kind of low section high-gain ultra-wideband antenna |
| CN109428167A (en) * | 2017-09-05 | 2019-03-05 | 香港中文大学深圳研究院 | A kind of dual polarization diectric antenna and its base-station antenna array |
| CN109509970A (en) * | 2018-12-19 | 2019-03-22 | 广州司南天线设计研究所有限公司 | Dual polarized antenna |
-
2019
- 2019-04-25 CN CN201910340085.0A patent/CN110071367A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04122104A (en) * | 1990-09-13 | 1992-04-22 | Mitsubishi Electric Corp | Two-frequency shaped antenna |
| US20050057396A1 (en) * | 2001-12-19 | 2005-03-17 | Viktor Boyanov | Antenna element |
| CN201797044U (en) * | 2010-04-22 | 2011-04-13 | 山东科技大学 | Single-surface-mounted-chip dual-frequency dual-polarized microstrip antenna |
| CN105870606A (en) * | 2016-05-13 | 2016-08-17 | 华南理工大学 | Low-profile omni-directional circularly polarized antenna working at ISM frequency band |
| CN207233933U (en) * | 2017-04-25 | 2018-04-13 | 南京航空航天大学 | Wideband dual polarized electromagnetic dipole antenna |
| CN109428167A (en) * | 2017-09-05 | 2019-03-05 | 香港中文大学深圳研究院 | A kind of dual polarization diectric antenna and its base-station antenna array |
| CN109149087A (en) * | 2018-08-22 | 2019-01-04 | 广东工业大学 | A kind of low section high-gain ultra-wideband antenna |
| CN109509970A (en) * | 2018-12-19 | 2019-03-22 | 广州司南天线设计研究所有限公司 | Dual polarized antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871882A (en) * | 2021-08-31 | 2021-12-31 | 广东工业大学 | Multimode broadband filtering micro base station antenna |
| CN113871882B (en) * | 2021-08-31 | 2023-10-20 | 广东工业大学 | Multimode broadband filtering micro base station antenna |
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Application publication date: 20190730 |