CN110416726A - A kind of multifrequency decoupling network structure and multi-frequency array antenna - Google Patents
A kind of multifrequency decoupling network structure and multi-frequency array antenna Download PDFInfo
- Publication number
- CN110416726A CN110416726A CN201810404769.8A CN201810404769A CN110416726A CN 110416726 A CN110416726 A CN 110416726A CN 201810404769 A CN201810404769 A CN 201810404769A CN 110416726 A CN110416726 A CN 110416726A
- Authority
- CN
- China
- Prior art keywords
- decoupling network
- multifrequency
- decoupling
- antenna
- array
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- H01Q1/48—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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- 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
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention relates to antenna technical field, in particular to a kind of multifrequency decoupling network structure and multi-frequency array antenna.Above-mentioned multifrequency decoupling network structure, applied to multi-frequency array antenna, above-mentioned multifrequency decoupling network structure includes at least two decoupling network layers, wherein, each decoupling network layer is respectively used to eliminate the electromagnetic coupling in multiple working frequency range of above-mentioned multi-frequency array antenna between the bay of a corresponding working frequency range；Above-mentioned at least two decoupling networks layer is stacked with overlapped way, and multiple bays are set to the side of the multi-frequency array antenna earth plate, and the multifrequency decoupling network structure setting is in the other side of the multi-frequency array antenna earth plate.The electromagnetic coupling realized between the bay to each working frequency range effectively eliminates, improve multi-frequency array antenna axis ratio property, so that the spacing in multi-frequency array antenna between each bay can further decrease, people are met to the miniaturization of equipment, the demand of portable degree.
Description
Technical field
The present invention relates to antenna technical field, in particular to a kind of multifrequency decoupling network structure and multi-frequency array antenna.
Background technique
Global Satellite Navigation System (Global Navigation Satellite Systems, GNSS) is in various fields
Using increasingly extensive, especially the service such as location navigation, accurate time transmission is played national security and stablizing vital
Effect.The whole world includes four main GNSS systems now, they are: the global positioning system (Global in the U.S.
Positioning System, GPS), Europe GALILEO positioning system (Galileo), Russia glonass system
(GLONASS) and China Beidou system.For accuracy, reliability and the safety of lifting system positioning, multimode GNSS
The inexorable trend for developing into the following airmanship development of airmanship.Multifrequency as multimode GNSS receiver Primary Component
Circular polarized antenna, research receive extensive attention with design.
It is desirable to which the mode of mutiple antennas array element composition array antenna to be met to high-gain, the beam scanning of antenna
Etc. application demands, while people are continuously increased to what the miniaturization of equipment, portable degree required, so that between bay
Away from smaller and smaller, then, electromagnetic coupling between bay to the impedance matching property and radiance of array-element antenna have compared with
Big influence.
Further, with the development of antenna technology, a multi-frequency array antenna is simultaneously worked under different-waveband,
Such as, it works in GPSL1 (1.575GHz), L2 (1.227GHz), the three frequency range circular polarisation of single feed point of L5 (1.176GHz) wave band is micro-
Band antenna；When the bay spacing of array-element antenna reduces, the method for decoupling network is generallyd use to reduce coupling to array
The influence of antenna.
However, current decoupling network is only for single-frequency array antenna, and it is ineffective to the decoupling of multi-frequency array antenna,
Coupling between bay is excessively high, and array antenna axis declines than performance.
Summary of the invention
The purpose of the embodiment of the present invention is that a kind of multifrequency decoupling network and multi-frequency array antenna are provided, to solve existing skill
The decoupling of multi-frequency array antenna present in art is ineffective, and the coupling between bay is excessively high, and array antenna axis is than under performance
The problem of drop.
The specific technical solution provided in the embodiment of the present invention is as follows:
In a first aspect, the present invention provides a kind of multifrequency decoupling network structure, it is applied to multi-frequency array antenna, above-mentioned multifrequency is gone
Coupling network structure includes at least two decoupling network layers, wherein each decoupling network layer is respectively used to eliminate above-mentioned multifrequency array
Electromagnetic coupling in multiple working frequency range of antenna between the bay of a corresponding working frequency range；Above-mentioned at least two decoupling
Network layer is stacked with overlapped way, and multiple above-mentioned bays are set to the side of the multi-frequency array antenna earth plate, above-mentioned
Multifrequency decoupling network structure setting is in the other side of above-mentioned multi-frequency array antenna earth plate.
Using multifrequency decoupling network structure provided by the invention, pass through each work frequency for multi-frequency array antenna work
Section is respectively designed with correspondingly, being used to eliminate the decoupling network of the electromagnetic coupling between the bay of a corresponding working frequency range
Layer, the electromagnetic coupling realized between the bay to each working frequency range effectively eliminate, and improve multifrequency array day
Spool, so that the spacing in multi-frequency array antenna between each bay can further decrease, meets people couple than property
The miniaturization of equipment, portable degree demand.And each decoupling network layer is stacked using overlapped way, is set to multi-frequency array antenna
Earth plate on, multifrequency decoupling network topology layout is reasonable, further, what a decoupling network layer was made of multiple microstrip lines
Dyadic array decouples unit composition, between the parameter value and two bays of the microstrip line of a dyadic array decoupling unit
The working frequency range of distance and two bays is associated.
Optionally, each decoupling network layer include at least two by several microstrip lines form dyadic array decoupling unit,
Wherein, a dyadic array decoupling unit is provided between adjacent antenna array element, the dyadic array in different decoupling network layers is gone
The microstrip line parameter value of coupling unit is different.
Optionally, each decoupling network is respectively printed on corresponding dielectric base plate；It is printed with corresponding decoupling network
Dielectric base plate is stacked with overlapped way, and above-mentioned multifrequency decoupling network structure welding is in the earth plate of above-mentioned multi-frequency array antenna
On.
Above-mentioned optional mode describes in the present invention and each decoupling network layer is respectively printed on dielectric base plate, with print
It is formed with based on the dielectric base plate of decoupling network, each decoupling network layer is stacked using overlapped way, and using welding
Mode by multifrequency decoupling network structure welding on the earth plate of multi-frequency array antenna.
Optionally, above-mentioned dielectric base plate is the FR4 dielectric-slab that dielectric constant is 3-5；Above-mentioned dielectric base plate with it is above-mentioned
Multi-frequency array antenna is altogether.
Above-mentioned optional mode describes a kind of preferable dielectric base plate in the present invention, defines the spy of dielectric base plate
Property, dielectric base plate is welded on the earth plate of multi-frequency array antenna, so that dielectric base plate and multi-frequency array antenna are altogether.
Optionally, above-mentioned dyadic array decoupling unit further comprises impedance matching network, for adjusting array antenna end
Impedance matching property between mouthful, wherein the impedance matching network parameter value of the dyadic array decoupling unit in different decoupling network layers
It is different.
Above-mentioned optional mode describes in dyadic array decoupling unit in addition to including several microstrip lines, further includes
There are several impedance matching networks, impedance matching network is used to adjust the impedance matching property between each port of array antenna, certainly, no
Impedance matching network parameter value with the dyadic array decoupling unit in decoupling network layer can be different.
Optionally, above-mentioned impedance matching network is the impedance transformer of λ/4；Alternatively, above-mentioned impedance matching network is L-type impedance
Matching network.
Above-mentioned optional mode describes the model of specific two kinds of impedance matching networks, and impedance matching network can be four
/ mono- impedance transformer, or L impedance matching network.
Optionally, above-mentioned multifrequency decoupling network structure is three frequency decoupling networks, and above-mentioned three frequencies decoupling network is gone including first
Coupling network layer, the second decoupling network layer and third decoupling network layer, wherein above-mentioned first decoupling network layer is fixed for eliminating the whole world
Electromagnetic coupling between the bay of position system GPS L1 frequency range；Above-mentioned second decoupling network layer is for eliminating GPS L2 frequency range
Bay between electromagnetic coupling；Above-mentioned third decoupling network layer is used to eliminate between the bay of GPS L5 frequency range
Electromagnetic coupling.
Above-mentioned optional mode describes one kind and specifically defines the multifrequency decoupling network structure of the decoupling network number of plies, applies
In working in GPS L1, three frequency array antennas of L2 and L5 frequency range, each decoupling network layer is respectively used to eliminate relevant work frequency
Electromagnetic coupling between the bay of section.
Optionally, each decoupling network layer is all made of feed microstrip line mode and is fed.
Second aspect, the embodiment of the present invention provide a kind of multi-frequency array antenna, and above-mentioned multi-frequency array antenna includes first party
The above-mentioned multifrequency decoupling network structure in any one of face, metal ground plate and multifrequency antenna array element, wherein above-mentioned frequency antenna array
Member is set to above-mentioned metal ground plate side, and above-mentioned multifrequency decoupling network structure setting is in the other side of above-mentioned metal ground plate.
Optionally, above-mentioned multifrequency antenna array element includes multiple groups antenna patch, wherein above-mentioned multifrequency antenna array element is receivable
The band number of signal is identical as the group number of above-mentioned multiple groups antenna patch, and above-mentioned multiple groups antenna patch is set on corresponding bottom plate,
And it is stacked with overlapped way.
The present invention has the beneficial effect that:
In conclusion a kind of multifrequency decoupling network structure is provided in the embodiment of the present invention, above-mentioned multifrequency decoupling network structure,
Applied to multi-frequency array antenna, above-mentioned multifrequency decoupling network structure includes at least two decoupling network layers, wherein each decoupling net
Network layers be respectively used to eliminate a corresponding working frequency range in multiple working frequency range of above-mentioned multi-frequency array antenna bay it
Between electromagnetic coupling；Above-mentioned at least two decoupling networks layer is stacked with overlapped way, and multiple above-mentioned bays are set to described
The side of multi-frequency array antenna earth plate, above-mentioned multifrequency decoupling network structure setting are another in above-mentioned multi-frequency array antenna earth plate
Side.
Using above-mentioned multifrequency decoupling network structure, by being set respectively for each working frequency range of multi-frequency array antenna work
In respect of correspondingly, decoupling network layer for eliminating the electromagnetic coupling between the bay of a corresponding working frequency range, is realized
Electromagnetic coupling between the bay of each working frequency range is effectively eliminated, improves multi-frequency array antenna axis ratio
Property.The spacing between each bay is reduced, meets people to the miniaturization of equipment, the demand of portable degree.
Detailed description of the invention
Fig. 1 is the schematic diagram of multi-frequency array antenna and multifrequency decoupling network structure in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of a decoupling network layer in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of a dyadic array decoupling unit in the embodiment of the present invention.
Specific embodiment
The technical solution introduced in embodiment to facilitate the understanding of the present invention now provides the definition of part term:
1, multi-frequency array antenna: referring to the array antenna being operable under multiple working frequency range, can receive simultaneously multiple
The array antenna of the signal of different frequency range.
For example, it is operable with GPS L1, the multi-frequency array antenna under L2 and L5 frequency range, including work under GPS L1 frequency range
First antenna array element, the second bay worked under GPS L2 frequency range and work in the third antenna under GPS L5 frequency range
Array element.
2, decoupling network: refer to the network structure for eliminating the electromagnetic coupling between bay.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, is not whole embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Firstly, term "and" in the embodiment of the present invention, a kind of only incidence relation for describing affiliated partner, expression can be with
There are three kinds of relationships, for example, A and B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Separately
Outside, character "/" herein typicallys represent the relationship that forward-backward correlation object is a kind of "or".
When referring to ordinal numbers such as " first ", " second " or " third " in the present invention, unless based on context it is certain
The meaning of order of representation, it is appreciated that being only to distinguish to be used.
The solution of the present invention will be described in detail by specific embodiment below, certainly, the present invention is not limited to
Lower embodiment.
Currently, needing mutiple antennas array element to form array antenna to improve the gain of antenna, improving single-band antenna pair
The transmitting-receiving of signal, for example, a single-frequency array-element antenna is formed using 4 bays, for receiving GPS L1 frequency band signals, into
One step, with the development of antenna technology, multiple groups bay constitutes multi-frequency array antenna, simultaneously works in multiple frequency ranges
Under, multiple and different working frequency range signals can be received simultaneously, for example, GPS L1 (1.575GHz), L2 can be received simultaneously
(1.227GHz), L5 (1.176GHz), the multi-frequency array antenna of L2 and L5 frequency band signals.Further, in order to meet user's
Miniaturization and/or portable degree requirement, need to reduce the spacing between bay, this may result in this way bay it
Between mutual coupling enhancing, need to carry out array-element antenna eliminate electromagnetic coupling processing.Existing decoupling technique cannot be simultaneously to more
The signal of a frequency range carries out decoupling amendment, can only the signal to one-segment carry out decoupling amendment, then, for multifrequency array element day
Line needs to design corresponding multifrequency decoupling network, is carried out at decoupling with meeting to the received multi-band signal of multifrequency array-element antenna
Reason.
In the embodiment of the present invention, a kind of multifrequency decoupling network structure applied to multi-frequency array antenna, above-mentioned multifrequency are provided
Decoupling network structure includes multiple decoupling network layers, wherein each decoupling network layer is respectively used to eliminate above-mentioned multifrequency array day
Electromagnetic coupling in multiple working frequency range of line between the bay of a corresponding working frequency range.
That is, the multifrequency decoupling network structure provided in the embodiment of the present invention comprising decoupling network layer layer
Number is associated with the working frequency range number of multi-frequency array antenna that it is applied, i.e., each decoupling network layer corresponds to multi-frequency array antenna
One working frequency range, for example, it is assumed that the working frequency range number of multi-frequency array antenna is 3, then, corresponding multifrequency decoupling network
The decoupling network number of plies of structure is 3.
Above-mentioned at least two decoupling networks layer is stacked with overlapped way, and multiple above-mentioned bays are set to the multifrequency battle array
The side of array antenna earth plate, above-mentioned multifrequency decoupling network structure setting is in the other side of above-mentioned multi-frequency array antenna earth plate.
Further, in the embodiment of the present invention, a kind of preferable embodiment is, if each decoupling network layer include at least two by
Dry microstrip line composition dyadic array decouples unit, wherein a dyadic array decoupling unit is provided between adjacent antenna array element,
The microstrip line parameter value of dyadic array decoupling unit in different decoupling network layers is different.
Certainly, the dyadic array decoupling unit of each decoupling network layer can also be had the electric appliance member of decoupling function by other
Part forms, and in the embodiment of the present invention, is not specifically limited herein.
In practical application, mutual coupling is had between two adjacent bays, then, it can be in two adjacent antenna arrays
Corresponding dyadic array decoupling unit is set between member, i.e., for eliminating the electromagnetic coupling between the two neighboring bay
Decouple unit.
Optionally, a kind of preferable embodiment is in the embodiment of the present invention, and above-mentioned dyadic array decoupling unit is further
Including impedance matching network, for adjusting impedance matching property between array antenna port, wherein two in different decoupling network layers
The impedance matching network parameter value that element array decouples unit is different.
Certainly, in the embodiment of the present invention, above-mentioned impedance matching network can be the impedance transformer of λ/4, L-type impedance matching net
Network or other elements that can be used for realizing impedance matching function.
A kind of preferable embodiment is in the embodiment of the present invention, and each decoupling network layer is respectively printed at corresponding electricity and is situated between
On matter substrate, and the dielectric base plate for being printed with corresponding decoupling network is stacked with stacked system, the multifrequency decoupling being stacked into
Network structure is welded on the earth plate of above-mentioned multi-frequency array antenna.
For example, it is assumed that decoupling network layer 1 is printed on dielectric base plate 1, decoupling network layer 2 is printed on dielectric base plate 2
On, decoupling network layer 3 is printed on dielectric base plate 3.Certainly, corresponding electric Jie of each decoupling network layer in multifrequency decoupling network
The material of matter substrate may be the same or different, and be not specifically limited herein in the embodiment of the present invention.
In the embodiment of the present invention, the dielectric base plate for being printed with decoupling network layer can be that the FR4 that dielectric constant is 3-5 is situated between
Scutum, in practical application, the thickness of the FR4 dielectric-slab of differing dielectric constant is different, for example, the FR4 that dielectric constant is 4.4
Dielectric-slab, with a thickness of 1.6mm；And above-mentioned dielectric base plate and above-mentioned multi-frequency array antenna are altogether.Certainly, dielectric base plate
Selection can select to be applicable in material, be applicable in the dielectric base of dielectric constant according to different application scene and/or different user demands
Plate in the embodiment of the present invention, is not specifically limited herein.
In practical application, multi-frequency array antenna includes multiple groups antenna patch and earth plate, due to above-mentioned multifrequency decoupling network
Structure welding is on the earth plate of above-mentioned multi-frequency array antenna section, to realize dielectric base plate and above-mentioned multi-frequency array antenna
Altogether.
Further, in the embodiment of the present invention, above-mentioned multifrequency decoupling network structure is three frequency decoupling networks, and above-mentioned three frequency is gone
Coupling network includes the first decoupling network layer, the second decoupling network layer and third decoupling network layer, wherein above-mentioned first decoupling network
Electromagnetic coupling between bay of the layer for eliminating GPS L1 frequency range；Above-mentioned second decoupling network layer is for eliminating GPS L2
Electromagnetic coupling between the bay of frequency range；Above-mentioned third decoupling network layer be used for eliminate GPS L5 frequency range bay it
Between electromagnetic coupling.Further, in practical application, during the feeding classification of decoupling network includes, but are not limited to, the following ways
Any one: feed microstrip line, coaxial feeding and electromagnetic coupling feed.In the embodiment of the present invention, each decoupling network layer is equal
It is fed using feed microstrip line mode.
For example, illustrative, as shown in fig.1, in the embodiment of the present invention, a kind of multi-frequency array antenna and multifrequency decouple net
The schematic diagram of network structure.The three frequency array antennas that decoupling network is not configured include first antenna array element group, the second antenna array tuple,
Third antenna array element group and earth plate, wherein first antenna array element group, the second antenna array tuple and third antenna array element group are with layer
Folded mode is stacked on earth plate, and any antenna array element group includes mutiple antennas array element (i.e. antenna patch), antenna patch face
The bigger bay of product is closer to earth plate；Three frequency decoupling network structures include the first decoupling network layer, the second decoupling network
Layer and third decoupling network layer, wherein each decoupling network layer is respectively used to eliminate a bay in three frequency array antennas
The electromagnetic coupling between each antenna patch in group.Certainly, the first decoupling network layer, the second decoupling network layer and third decouple net
Lamination order between network layers does not limit.
Certainly, in the embodiment of the present invention, the mutiple antennas array element of array antenna is set to the side of earth plate, and corresponding
Multilayer decoupling network structure setting in the other side of earth plate, multifrequency decoupling network structure includes multiple independent decoupling nets
Network, multiple independent decoupling networks can be laminated in the same direction, and the other side of terminal plate is fixed on by the way of welding, can also be same
To stacking, the other side of terminal plate is fixed on using other fixed forms.
In the embodiment of the present invention, an aerial array group for receiving a working frequency range signal may include multiple days
Linear array member (i.e. antenna patch), then, i.e., need to position according to each antenna patch and the working frequency range, design corresponding decoupling
Network layer.
Illustratively, as shown in fig.2, in the embodiment of the present invention, the structural schematic diagram of a decoupling network layer.One day
Include bay 1, bay 2, bay 3 and bay 4 in linear array group, and uniformly arranges at matrix pattern, phase
Spacing before adjacent two bays is identical, i.e., the spacing between bay 1 and bay 2, bay 2 and antenna
Spacing between array element 3, the spacing between bay 3 and bay 4, the spacing between bay 4 and bay 1
It is identical.Further, dyadic array decoupling unit 1-2 is provided between bay 1 and bay 2, for eliminating day
Electromagnetic coupling between linear array member 1 and bay 2 is provided with dyadic array decoupling between bay 2 and bay 3
Unit 2-3 is set between bay 3 and bay 4 for eliminating the electromagnetic coupling between bay 2 and bay 3
It is equipped with dyadic array decoupling unit 3-4, for eliminating electromagnetic coupling and antenna array between bay 3 and bay 4
Dyadic array decoupling unit 4-1 is provided between member 4 and bay 1, for eliminating between bay 4 and bay 1
Electromagnetic coupling.
Certainly, the number of bay and each antenna in an antenna array tuple are not limited in the embodiment of the present invention
The arrangement mode of array element, the number of bay, the arrangement of each bay is based on optimal arrangement mode.
In practical application, a dyadic array decoupling unit can be made of microstrip line, can also be by microstrip line and impedance matching
In an antenna array tuple dyadic array decoupling unit of corresponding number is arranged, to realize an antenna array in network composition
Electromagnetic coupling in tuple between each bay.
Illustratively, as shown in fig.3, in the embodiment of the present invention, the structural schematic diagram of a dyadic array decoupling unit.
One dyadic array decoupling unit includes microstrip line 1, microstrip line 2, microstrip line 3 and 2 impedance matching network, microstrip line 1, micro-strip
Line 2 and microstrip line 3 form U-shaped structure, and the electrical length of microstrip line 3 is the distance between antenna (bay) 1 and antenna 2, that
, in microstrip line 1, microstrip line 2 and 3 material of microstrip line are determined, in the case that antenna array tuple working frequency range determines, determine one
Dyadic array decouples the parameter value of unit, substantially determines the electrical length of microstrip line 1 and microstrip line 2, wherein in working frequency range
In the case where determination, it is known that the characteristic impedance of the microstrip line of material is known parameters.
Specifically, since antenna 1 and antenna 2 are symmetrically placed, it is assumed that S11=S22=k, S12=S21=t, then, A in Fig. 3
The S parameter matrix S at placeAFor formula (1-1):
Assuming that the electrical length θ of microstrip line 1 and microstrip line 2, characteristic impedance Z0, then the S parameter matrix S in Fig. 3 at BBFor public affairs
Formula (1-2):
Further, formula (1-2) is converted into y matrix form is formula (1-3):
Where it is assumed that y12 B=a+jb, willWith plural number form indicates, due to microstrip line 3 be connected in parallel at B with C at it
Between, it is known that its characteristic impedance value is Zdecouple, then, the y matrix at microstrip line 3 is formula (1-4):
And the y matrix in the face C is formula (1-5):
If wanting to achieve the purpose that eliminate the electromagnetic coupling between antenna 1 and antenna 2, need to meet y12 C=0, then there is item
Part:
Due to the electrical length of microstrip line 3, the characteristic impedance of microstrip line 3 and the characteristic impedance of microstrip line 1 and microstrip line are
Know parameter, then, formula (1-6) is substituted into formula (1-3) into (1-5), the electricity that microstrip line 1 and microstrip line 2 can be obtained is long
θ is spent, that is, determines the parameter value of dyadic array decoupling unit.
It,, can be with when the design of three frequency decoupling networks of L2 and L5 frequency range firstly, be directed to GPS L1 in the embodiment of the present invention
According to the design method of single-frequency decoupling network, GPS L1, the microstrip line of the decoupling matching network of L2 and L5 frequency range are calculated separately out
Parameter value.Then stacked three frequencies decoupling network structure is formed in such a way that three layers of decoupling network stack gradually.Three frequencies decouple
The bottom and quaternary antenna array of network structure arrange altogether, and four ports of every layer of decoupling network are carried out using feed microstrip line mode
Feed.Overall structure be quaternary antenna array column metal ground plate on centre, metal ground plate three-decker be three frequency four
First aerial array, front are printed with the one of paster antenna and face upward, and are three layers of decoupling network structures below metal ground plate, front
It is printed with the one of decoupling network downwards.
Further, the embodiment of the present invention also provides a kind of multi-frequency array antenna, and above-mentioned multi-frequency array antenna includes first
The above-mentioned multifrequency decoupling network structure of any one of aspect, metal ground plate and multifrequency antenna array element, wherein above-mentioned multifrequency antenna
Array element is set to above-mentioned metal ground plate side, and above-mentioned multifrequency decoupling network structure setting is in the another of above-mentioned metal ground plate
Side.
Optionally, above-mentioned multifrequency antenna array element includes multiple groups antenna patch, wherein above-mentioned multifrequency antenna array element is receivable
The band number of signal is identical as the group number of above-mentioned multiple groups antenna patch, and above-mentioned multiple groups antenna patch is set on corresponding bottom plate,
And it is stacked with overlapped way.
In conclusion a kind of multifrequency decoupling network structure is provided in the embodiment of the present invention, above-mentioned multifrequency decoupling network structure,
Applied to multi-frequency array antenna, above-mentioned multifrequency decoupling network structure includes at least two decoupling network layers, wherein each decoupling net
Network layers be respectively used to eliminate a corresponding working frequency range in multiple working frequency range of above-mentioned multi-frequency array antenna bay it
Between electromagnetic coupling；Above-mentioned at least two decoupling networks layer is stacked with overlapped way, and multiple bays are set to described
The side of multi-frequency array antenna earth plate, above-mentioned multifrequency decoupling network structure setting are another in above-mentioned multi-frequency array antenna earth plate
Side.
Using above-mentioned multifrequency decoupling network structure, by being set respectively for each working frequency range of multi-frequency array antenna work
In respect of correspondingly, decoupling network layer for eliminating the electromagnetic coupling between the bay of a corresponding working frequency range, is realized
Electromagnetic coupling between the bay of each working frequency range is effectively eliminated, improves multi-frequency array antenna axis ratio
Property.The spacing between each bay is reduced, meets people to the miniaturization of equipment, the demand of portable degree.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of multifrequency decoupling network structure, which is characterized in that be applied to multi-frequency array antenna, the multifrequency decoupling network structure
Including at least two decoupling network layers, wherein
Each decoupling network layer is respectively used to eliminate corresponding job frequency in multiple working frequency range of the multi-frequency array antenna
Electromagnetic coupling between the bay of section
At least two decoupling networks layer is stacked with overlapped way, and multiple bays are set to multifrequency array day
The side of line earth plate, the multifrequency decoupling network structure setting is in the other side of the multi-frequency array antenna earth plate.
2. multifrequency decoupling network structure as described in claim 1, which is characterized in that each decoupling network layer includes at least two
It is a to form dyadic array decoupling unit by several microstrip lines, wherein to be provided with a dyadic array between adjacent antenna array element and go
The microstrip line parameter value of coupling unit, the dyadic array decoupling unit in different decoupling network layers is different.
3. multifrequency decoupling network structure as claimed in claim 1 or 2, which is characterized in that
Each decoupling network is respectively printed on corresponding dielectric base plate；
The dielectric base plate for being printed with corresponding decoupling network is stacked with overlapped way, and the multifrequency decoupling network structure welding is in institute
It states on the earth plate of multi-frequency array antenna.
4. multifrequency decoupling network structure as claimed in claim 3, which is characterized in that
The dielectric base plate is the FR4 dielectric-slab that dielectric constant is 3-5；
The dielectric base plate and the multi-frequency array antenna are altogether.
5. multifrequency decoupling network structure as claimed in claim 2, which is characterized in that
Dyadic array decoupling unit further comprises impedance matching network, for adjusting impedance matching between array antenna port
Characteristic, wherein the impedance matching network parameter value of the dyadic array decoupling unit in different decoupling network layers is different.
6. multifrequency decoupling network structure as claimed in claim 5, which is characterized in that
The impedance matching network is the impedance transformer of λ/4；Alternatively,
The impedance matching network is L-type impedance matching network.
7. multifrequency decoupling network structure as described in claim 1, which is characterized in that the multifrequency decoupling network structure is three frequencies
Decoupling network, the three frequencies decoupling network include the first decoupling network layer, the second decoupling network layer and third decoupling network layer,
In,
The first decoupling network layer is used to eliminate the electromagnetic coupling between the bay of global position system GPS L1 frequency range；
The second decoupling network layer is used to eliminate the electromagnetic coupling between the bay of GPS L2 frequency range；The third decoupling network
Electromagnetic coupling between bay of the layer for eliminating GPS L5 frequency range.
8. multifrequency decoupling network structure as described in claim 1, which is characterized in that each decoupling network layer is all made of microstrip line
Feeding classification is fed.
9. a kind of multi-frequency array antenna, which is characterized in that the multi-frequency array antenna includes as described in claim any one of 1-8
Multifrequency decoupling network structure, metal ground plate and multifrequency antenna array element, wherein
The multifrequency antenna array element is set to the metal ground plate side, and the multifrequency decoupling network structure setting is in the gold
Belong to the other side of earth plate.
10. multi-frequency array antenna as claimed in claim 9, which is characterized in that
The multifrequency antenna array element includes multiple groups antenna patch, wherein the frequency range of the receivable signal of multifrequency antenna array element
Number is identical as the group number of the multiple groups antenna patch, and the multiple groups antenna patch is set on corresponding bottom plate, and with stacking side
Formula stacks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404769.8A CN110416726B (en) | 2018-04-28 | 2018-04-28 | Multi-frequency decoupling network structure and multi-frequency array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404769.8A CN110416726B (en) | 2018-04-28 | 2018-04-28 | Multi-frequency decoupling network structure and multi-frequency array antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110416726A true CN110416726A (en) | 2019-11-05 |
| CN110416726B CN110416726B (en) | 2021-03-23 |
Family
ID=68357413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810404769.8A Active CN110416726B (en) | 2018-04-28 | 2018-04-28 | Multi-frequency decoupling network structure and multi-frequency array antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110416726B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164890A (en) * | 2020-08-31 | 2021-01-01 | 西安朗普达通信科技有限公司 | Stack decoupling network |
| CN113659311A (en) * | 2020-05-12 | 2021-11-16 | 西安电子科技大学 | Antenna device and electronic apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080036668A1 (en) * | 2006-08-09 | 2008-02-14 | White George E | Systems and Methods for Integrated Antennae Structures in Multilayer Organic-Based Printed Circuit Devices |
| CN105103371A (en) * | 2012-12-06 | 2015-11-25 | 微软技术许可有限责任公司 | Reconfigurable multiband antenna decoupling networks |
| CN105281025A (en) * | 2015-11-24 | 2016-01-27 | 蒋金香 | Router antenna with isolating and reflecting layers |
| CN107706528A (en) * | 2016-08-08 | 2018-02-16 | 华为技术有限公司 | Antenna system |
-
2018
- 2018-04-28 CN CN201810404769.8A patent/CN110416726B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080036668A1 (en) * | 2006-08-09 | 2008-02-14 | White George E | Systems and Methods for Integrated Antennae Structures in Multilayer Organic-Based Printed Circuit Devices |
| CN105103371A (en) * | 2012-12-06 | 2015-11-25 | 微软技术许可有限责任公司 | Reconfigurable multiband antenna decoupling networks |
| CN105281025A (en) * | 2015-11-24 | 2016-01-27 | 蒋金香 | Router antenna with isolating and reflecting layers |
| CN107706528A (en) * | 2016-08-08 | 2018-02-16 | 华为技术有限公司 | Antenna system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113659311A (en) * | 2020-05-12 | 2021-11-16 | 西安电子科技大学 | Antenna device and electronic apparatus |
| CN112164890A (en) * | 2020-08-31 | 2021-01-01 | 西安朗普达通信科技有限公司 | Stack decoupling network |
| CN112164890B (en) * | 2020-08-31 | 2023-05-09 | 西安朗普达通信科技有限公司 | Stacked decoupling network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110416726B (en) | 2021-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11967760B2 (en) | Power wave transmission techniques to focus wirelessly delivered power at a location to provide usable energy to a receiving device | |
| CN109462024B (en) | Double-frequency Beidou navigation antenna with wide axial ratio wave beams | |
| CN104319467B (en) | Five frequency range subscriber computer antennas of compatible Beidou and GPS function | |
| JP4368803B2 (en) | Antenna structure for reducing the effects of multipath radio signals | |
| KR101696953B1 (en) | Dual-feed dual band antenna assembly and associated method | |
| Padros et al. | Comparative study of high-performance GPS receiving antenna designs | |
| Son et al. | Design of compact quadruple inverted-F antenna with circular polarization for GPS receiver | |
| JP4308299B2 (en) | Triple polarized patch antenna | |
| CN107437659A (en) | For reducing the apparatus and method of mutual coupling in aerial array | |
| Volakis et al. | Small and adaptive antennas and arrays for GNSS applications | |
| WO2018182507A1 (en) | Compact wideband high gain circularly polarized antenna | |
| EP2571100B1 (en) | Compact 3D direction finder | |
| CN102117964A (en) | Double-frequency antenna | |
| CN110137673A (en) | A kind of mushroom head PNT combined antenna and its equipment | |
| CN113937501B (en) | Broadband GNSS antenna | |
| Fairouz et al. | A complete system of wireless power transfer using a circularly polarized retrodirective array | |
| CN110416726A (en) | A kind of multifrequency decoupling network structure and multi-frequency array antenna | |
| RU2480870C1 (en) | Multirange antenna of circular polarisation with metamaterial | |
| RU2315398C1 (en) | Stacked multiband and microstrip antenna | |
| US20110187616A1 (en) | Composite antenna device | |
| EP3364500A1 (en) | Antenna unit and antenna array | |
| Ibraheam et al. | Dual-band dual-polarized stub-loaded patch antenna for robust GNSS receivers | |
| SE532279C2 (en) | Improved antenna insulation | |
| Johnstone et al. | A compact cylindrical dielectric resonator antenna for MIMO applications | |
| Faiz et al. | A high efficiency L-band microstrip antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |