CN106602244A - Micro-strip array antenna - Google Patents
Micro-strip array antenna Download PDFInfo
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- CN106602244A CN106602244A CN201611125140.7A CN201611125140A CN106602244A CN 106602244 A CN106602244 A CN 106602244A CN 201611125140 A CN201611125140 A CN 201611125140A CN 106602244 A CN106602244 A CN 106602244A
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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Abstract
The invention belongs to the technical field of antennas, and specifically relates to a micro-strip array antenna. The micro-strip array antenna comprises a dielectric plate, a patch array antenna, and a micro-strip line power distribution network. The dielectric plate is of a two-layer plate body, and a metal ground is sandwiched between the two layers. The micro-strip line power distribution network comprises a first power distribution sub-network, a second power distribution sub-network, phase shift micro-strip line segments, and Wilkinson power dividers provided with arc phase shifters. Eight coaxial feed probes are respectively arranged at the ends of the phase shift micro-strip line segments and at the lumped ports of the Wilkinson power dividers, and are arranged through the dielectric plate to be connected to the patch array antenna. The patch array antenna includes eight columns, each column of antenna patch units is composed of two symmetrical patch units, and every two adjacent micro-strip patches are connected by a triangular arrow-shaped tapered-line impedance matching section. The micro-strip array antenna has the advantages of high gain, low side-lobe, and small size. A highly-integrated and miniaturized overall antenna structure can be achieved.
Description
Technical field
The invention belongs to antenna technical field, and in particular to a kind of micro-strip array antenna.
Background technology
Antenna as communication system in an important radio, the quality of its performance will directly affect radio
The performance of equipment.With the continuous development of radio communication and radar system and perfect, lightweight, volume is proposed to antenna performance
It is little, make simple, easily conformal, broadband and the low performance requirement of cost.Exactly because microstrip antenna meets above-mentioned requirements, from
And paid close attention to by people deeply, application in recent years is also more and more extensive.However, the module gain of microstrip antenna be generally 6dBi～
8dBi, therefore the conventional micro-strip array antenna being made up of microband paste unit is obtaining bigger gain or realize specific direction
Property.Array antenna can realize the sophisticated functions to be realized of individual antenna, possess the signal of greater flexibility and Geng Gao
Capacity, and the performance of system can be significantly improved.Microstrip antenna traditional at present is generally using sides such as circular or rectangular patch flutings
Formula is improving directionality, but the problem that gain is low, loss is big and power is little still cannot be resolved.Whether one can be developed
The novel array antenna structure for possessing high-gain, Sidelobe and miniaturization is planted, so as to realize the highly integrated property that integrated antenna is constructed
And miniature requirement, it is those skilled in the art's technical barrier urgently to be resolved hurrily in recent years.
The content of the invention
One of purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of rational in infrastructure and practicality
Micro-strip array antenna, it has the advantage of high-gain, Sidelobe and miniaturization concurrently, can effectively realize that integrated antenna is constructed highly integrated
Property and miniature requirement.
For achieving the above object, present invention employs technical scheme below：
A kind of micro-strip array antenna, it is characterised in that：This micro-strip array antenna includes dielectric-slab and is attached at dielectric-slab
Patch array antenna at the plate face of side, at another lateral plates of dielectric-slab microstrip line power distributing network, dielectric-slab are pasted with
For sandwiched metal ground between double-deck plate body and two-layer plate body；Wherein：
The microstrip line power distributing network includes the first power distribution sub-network and the second power distribution on one point of six tunnel
Sub-network, two groups of sub-networks are the T-shaped work(parallel circuit of mutually isostructural three-level, and six branch ports of every group of sub-network are pressed
According to the distribution of Chebyshev 25dB amplitude weightings；The branch port of two groups of sub-networks is toward each other；First power distribution sub-network
The T-shaped work(point of the one pair of which three-level of branch port and the second power distribution sub-network that two two grades T-shaped work(parallel circuits are formed
Between the branch port that circuit is formed, and two two grades T-shaped work(parallel circuits of the second power distribution sub-network are formed
Lead between the branch port that the T-shaped work(parallel circuit of one pair of which three-level of branch port and the first power distribution sub-network is formed
Cross the Wilkinson power divider with the arc phase shifter to be connected；The another of first power distribution sub-network divides the T-shaped work(of three-level
Branch port and another branch end that the T-shaped work(parallel circuit of three-level is formed of the second power distribution sub-network that circuit is formed
Phase shift micro-strip line segment is respectively connected with mouthful；Eight coaxial feed probes be accordingly arranged in four phase shift micro-strip line ends respectively with
And four groups of Wilkinson power dividers total port and vertical through dielectric-slab so as to being connected to lateral plates another positioned at dielectric-slab
At the patch array antenna at place；
Patch array antenna is eight row and along spaced in parallel to each other uniform, and each column array plaster unit is by two groups along coaxial
The chip unit that feed probes axis for axis symmetry is arranged is constituted, every group of chip unit include six along chip unit arranged direction according to
The microband paste that minor tick is arranged and is distributed by Chebyshev 25dB amplitude weightings；It is micro- with the adjacent two panels at group chip unit
Spacing is equal between 1/2nd wavelength, and each adjacent two panels microband paste and passes through triangle flechette-type gradual change wire between band paster
Impedance matching section connect each other；Close coaxial feed probe place side with every group of chip unit as inner side, every group of paster list
The parallel chip unit arranged direction of triangular arrowheads pointing direction of each impedance matching section and sensing outermost microband paste at unit
Place；In same row patch array antenna, coaxial feed probe and the relative immediate micro-strip on one of which chip unit
It is direct-connected between paster, and connect that by 180 ° of phase shifters between the relative immediate microband paste on another group of chip unit
This.
The phase shifter for connecting each sub-network respective branch port is symmetrically distributed in the two of Wilkinson power divider
At individual branch port, 100 Ω isolation resistances are also bridged at two branch ports of Wilkinson power divider.
The end appearance of each branch port of microstrip line power distributing network is in coaxial feed probe coaxially to each other
Circular arc columnar structure.
The side plate face for attaching microstrip line power distributing network on dielectric-slab is arranged with vallecular cavity, so that micro-strip
Linear heat generation rate distributes network and encloses to form air back of the body chamber jointly with the vallecular cavity, the trend and microstrip line power distribution in the air back of the body chamber
Signal travel path is consistent at network.
The dielectric-slab profile is in rectangular tabular and the parallel chip unit arranged direction of its length direction, around dielectric-slab one
Enclose and rectangular metal circle is set；Perpendicular media plate on rectangular metal circle and metallization hole altogether is set, each metallization hole edge altogether
Rectangular metal circle arranged direction is successively uniformly at intervals；Per metal isolating bar is arranged between two adjacent groups chip unit, metal is isolated
The parallel dielectric-slab length direction of bar length direction, and metal isolating bar two ends are respectively connecting at two minor faces of rectangular metal circle；
There are metalized blind vias uniformly at intervals successively along metal isolating bar length direction.
The setting metallization short circuit hole at outermost microband paste of every group of chip unit.
Metallization short circuit hole on the same microband paste is three and uniformly at intervals sequentially, the metallization short circuit hole
Arranged direction perpendicular to one another with chip unit arranged direction.
This micro-strip array antenna also includes surrounding four plated-through holes of coaxial feed probe and circumferentially equidistant arrangement.
The microband paste is rectangular patch or U-shaped paster.
Material used by dielectric-slab is the sheet materials of Rogers 4350, and its dielectric constant is 3.66, and thickness is 0.508mm.
The beneficial effects of the present invention is：
1), dielectric-slab at dielectric-slab at patch array antenna and microstrip line power distributing network is pressed together on one by the present invention
Rise, so as to form the unique structural forms on two-layered medium plate sandwiched metal ground, and then cause microstrip line power distributing network and adopt
Perfect adaptation is generated between the array plaster antenna of different amplitude weightings, the present invention is collectively form therewith possesses high increasing
The micro-strip array antenna construction of benefit, Sidelobe and miniaturization function.
For microstrip line power distributing network, its power distribution sub-network for passing through two groups of one point of six tunnels coordinates phase shift
Micro-strip line segment and Wilkinson power divider, on the one hand, the mutual of power distribution sub-network that make use of two groups of one point of six tunnels uses special
Property so that device overall volume is less, and structure is more compact, and can be simultaneously a group at the metal ground side of dielectric-slab
Array antenna is used, you can with save space, the miniaturization and multifunction design of itself is realized again.On the other hand, band
There is the Wilkinson power divider of arc phase shifter, the power distribution sub-network that two groups of one point of six tunnels are caused again is mutually using the same of network
When, obtain good amplitude characteristic and phase characteristic.Wherein, one point of six tunnel power distribution sub-network should be by the T of three-level
Type work(parallel circuit is constituted, and the energy for being finally allocated to six ports should be carried out point according to Chebyshev 25dB amplitude weightings
Cloth, and using the method broadening beam angle of phase weighting.Wilkinson power divider is then fed by coaxial feed probe, etc.
The arc phase shifter of arc-shaped flaky is respectively carried at two branch ports of width output constant amplitude input in other words, its objective is to ensure work(
Phase characteristic when subnetwork is combined.The effect of phase shift micro-strip line segment be ensure final synthesis microstrip line power distributing network each
The phase place of port meets the phase value of beam-broadening.
It is different size of by 12 per string and for patch array antenna, patch array antenna has eight row
Microband paste and corresponding impedance matching section are constituted, and all realize front side using taylor25dB amplitude weightings per string
Design to the Sidelobe of figure, finally ensure compact and the low-loss of overall antenna structure.As a result of triangle flechette-type gradually
The impedance matching section for becoming wire replaces traditional a quarter impedance transformer to realize impedance matching, this has also reduced impedance change
The impact of the echo that the discontinuity of parallel operation is brought, further increases the performance of antenna.Triangle flechette-type transition line herein
Shape, namely while itself is presented the triangle arrow-like of plane, the both sides plate face in triangle arrow face bloats to form curved surface columnar structure, and
The curved surface have followed gradual change the distribution of line shape.By being arranged in linear array, the chi of 12 microband pastes using 12 microband pastes
It is very little determined according to current amplitude distribution ratio be spaced about 1/2 medium wavelength between its size, and each microband paste, so as to
Ensure each chip unit homophase feed.Impedance matching section between each microband paste using triangle flechette-type gradual change wire can basis
CURRENT DISTRIBUTION by feed probes to the left and right both sides by by force to weak；The sensing of triangle flechette-type is also symmetrically outwardly directed by feed both sides
Place.Micro-strip array antenna is fed by the way of coaxial feed probe, and distributing point is located at the centre bit of series feed array element
Put, i.e., distributing point or so respectively has one group of chip unit.To ensure the concordance of the coaxial feed probe two ends sense of current, coaxial
The side of feed probes output adds 180 ° of phase shifters, and whole micro-strip array antenna adds 180 ° of shiftings except distributing point side
Beyond phase device, left and right is full symmetric, can so reduce its radiation effect, so as to further lift each group paster list of both sides
The concordance of the antenna pattern of unit.
To sum up, it is of the invention because two groups of power distribution sub-networks share one group of micro-strip crossfeed array antenna, and two groups of power
Distribution sub-network also has mutual characteristic, with reference to two-layered medium plate and the compound structure on metal ground, it is ensured that overall volume
Miniature requirement, while compact conformation and low cost.The present invention possesses that wide coverage, pointing accuracy be high and that secondary lobe is low is good
Good performance, can make patch array antenna and microstrip line power distributing network in working frequency range input impedance close to 50 Ω, day
The matching of line working frequency range is good, VSWR is relatively low, in can be widely applied to antenna feeder radar system.
2), as the further preferred scheme of such scheme, the arc phase shifter can select arc-shaped micro-strip line and constitute, and in right
Be arranged at two branch ports of Wilkinson power divider, so as to as connection Wilkinson power divider two branch ports with
The joining section of each branch port of power distribution sub-network.Further, since the micro-strip face residing for microstrip line power distributing network coordinates
Vallecular cavity is so as to define the construction that air carries on the back chamber at dielectric-slab, so as to the higher mode that effectively suppresses cavity resonance to bring and energy
Amount loss so that the mutual coupling between port is less, and port amplitude, phase performance are preferable.
3), the total port of the energy of microstrip line power distributing network can arrange sub-miniature A connector, and the micro-strip of eight branch ports
Edge is then designed as arc-shaped, in order to preferably carried out by vertical coaxial feed probe and patch array antenna
Match somebody with somebody.The air back of the body chamber arranged at the dielectric-slab of microstrip line power distributing network side, can effectively suppress what cavity resonance brought
Higher mode and energy loss so that the mutual coupling between each port of microstrip line power distributing network is less, and end is effectively ensured
The amplitude and phase performance of mouth.
4), the one of dielectric-slab periphery setting encloses rectangular metal circle and arranges metallization hole altogether thereon, and eight row pasters
There is a metal isolating bar with metalized blind vias in the middle of the every string of array antenna, eight row patch arrays can be effectively reduced
Being mutually coupled between antenna.There are four plated-through holes around coaxial feed probe, can effectively strengthen coaxial feed probe
Common ground effect.Meanwhile, respectively there are three metallization short circuit holes on the outermost microband paste of each group chip unit, antenna can be made
Impedance matching it is more preferable.
Description of the drawings
Fig. 1 is the positive structure schematic of the present invention；
Fig. 2 is the structure schematic diagram of the present invention；
Fig. 3 is the I parts partial enlarged drawing of Fig. 2；
Fig. 4 is the side view of the present invention；
Fig. 5 is the structure principle chart of Wilkinson power divider；
Fig. 6 is the even mould analysis principle figure of Wilkinson power divider；
Fig. 7 is phase interference method angle measuring principle figure；
Fig. 8 is total port S1 of the first power distribution sub-network of the present invention and total port of the second power distribution sub-network
The voltage standing wave ratio test chart of S2；
Fig. 9 is the azimuth plane and pitching face gain test figure of total port S1 of the first power distribution sub-network；
Figure 10 is the azimuth plane and pitching face gain test figure of total port S2 of the second power distribution sub-network；
Azimuth plane and pitching face when Figure 11 is the anti-phase synthesis of micro-strip array antenna A and micro-strip array antenna B of the present invention
Gain test figure.
Each label is as follows with each component names corresponding relation of the present invention in accompanying drawing：
10- dielectric-slab 11- metals ground 12- air back ofs the body chamber
20- microstrip line power distributing networks
21- the first power distribution sub-network 22- the second power distribution sub-networks
23- arc phase shifter 24- Wilkinson power dividers 25- phase shift micro-strip line segments
26-100 Ω isolation resistances
30- coaxial feed probe 40- patch array antennas
The 41- microband paste 42- impedance matching section 43-180 ° phase shifters
44- rectangular metal circles 44a- metallization hole altogether
45- metal isolating bar 45a- metalized blind vias
46- metallization short circuit hole 47- plated-through holes
Specific embodiment
For ease of understanding, this is sentenced as a example by the microstrip array reception antenna of 3D traffic administration radar systems, with reference to accompanying drawing pair
The present invention's is embodied as structure and the following description of workflow work：
This antenna is by being sandwiched between double-deck dielectric-slab 10 on metal ground, be arranged in the paster battle array of the one side of dielectric-slab 10
Array antenna 40 and the microstrip line power distributing network 20 being arranged at the another side of dielectric-slab 10 are constituted.Can be seen that in Fig. 4
The concrete position of the relative patch array antenna 40 of double-deck dielectric-slab 10 and microstrip line power distributing network 20：Jie of two-layer
Scutum 10 is bonded together using process for pressing, middle sandwiched layer of metal ground 11, the one side arrangement patch array of dielectric-slab 10 day
Line 40 and in addition one side is microstrip line power distributing network 20.Wherein：
One), patch array antenna part：It is eight row and along spaced in parallel to each other uniform, concrete arrangement such as Fig. 1 institutes
Show.Each column patch array antenna 40 includes 12 41, ten groups of different size of microband paste, 42, one group of impedance matching sections
180 ° of phase shifters 43 and a coaxial feed probe 30.Microband paste 41 is with six as one group of chip unit and two groups of paster lists
Unit is distributed along the axis for axis symmetry of coaxial feed probe 30.Then pass through different size at every group of chip unit between microband paste 41
Series feed mating end namely impedance matching section 42 be attached.180 ° of phase shifters 43 are added at the side of coaxial feed probe 30
So as to connect the adjacent microband paste at one of which chip unit, and then guarantee the feed current direction one of whole microstrip array
Cause property.Metal isolating bar 45 is set between each row patch array antenna 40, around whole patch array antenna 40 rectangle is arranged
Quoit 44, metallization altogether hole 44a and metalized blind vias 45a then ensure antenna commonly.Patch array antenna 40 is by same
Axle feed probes 30 are connected with corresponding distributing point at microstrip line power distributing network 20.
Two), microstrip line power distributing network part：The microstrip line power distributing network includes the power on two groups of one point of six tunnels
Distribution sub-network, four groups of Wilkinson power dividers 24 with the arc phase shifter 23 and four phase shift micro-strip line segments 25.Wherein：Two
The branch port of the power distribution sub-network on one point of six tunnel of group toward each other, namely forms structure of the similar both hands finger fingertip to top
Make.When showing in Fig. 2-3, the wherein four group of branches ends of the first power distribution sub-network 21 and the second power distribution sub-network 22
Mouthful respectively correspondingly on same straight line, and two other group of branches ports are then as separate port arranging.It is above-mentioned
The four group of branches ports at same straight line are connected each other by the Wilkinson power divider 24 with the arc phase shifter 23；
The phase shift micro-strip line segment 25 and other separate port is then directly plugged into.It should be noted that：Because array antenna has transmitting-receiving spy concurrently
Property, therefore in said structure, six group of branches ports of the first power distribution sub-network 21 and the second power distribution sub-network 22
Both the signal sent by total port can have been sent as output port, can have been received as input port again by Weir gold
The signal that branch port gets at gloomy power splitter 24 is further sent by total port of the power distribution sub-network that need to distribute；Weir gold
Each branch port and total port working situation be in the same manner at gloomy power splitter 24.In total port of Wilkinson power divider 24 and phase shift
The other end of the relative linking power distribution sub-network of micro-strip line segment 25 namely end are respectively provided with power feed hole, so as to pass through coaxial feed
Electric probe 30 passes through the power feed hole and extends via dielectric-slab 10 and is connected to positioned at the patch array day of the another side of dielectric-slab 10
At line 40.Air back of the body chamber 12 as Figure 2-3 can be set at dielectric-slab 10, so as to the higher mode that suppresses cavity resonance to bring and
Energy loss so that the mutual coupling between port is less, and lift the amplitude and phase performance of port.
And shown in reference picture 2-3, each sub-network and corresponding Wilkinson power divider 24 and phase shift micro-strip line segment 25
Specifically annexation is：P1 to P6 is respectively the branch port of each power distribution sub-network on two groups of one point of six tunnels, by each branch
Port connects the corresponding port of Wilkinson power divider 24 and phase shift micro-strip line segment 25 according to construction shown in Fig. 2, finally
Attachment structure figure it is as shown in Figure 2.Now, two groups one point six tunnel power distribution sub-networks are entered using amplitude weighting and phase weighting
Row design.In above-mentioned, it, in order to preferably reduce the secondary lobe of antenna, and is to enter one using phase weighting to be using amplitude weighting
The beam angle of step broadening antenna.
The circuit theory diagrams of Wilkinson power power splitter are as shown in figure 5, even mould analysis principle figure such as Fig. 6 institutes of circuit
Show.In Fig. 5-6, energy is input into by port 1, and constant amplitude homophase is assigned to port 2 and port 3, and the resistance of isolation resistance 41 is 100
Ω。
When actually used, microband paste 41 is considered as a field quantity in the transmission-line efficiency being laterally not changed in, field
Only prolong the change of the length direction of microband paste 41.In selection rectangular microband paste 41 as shown in Figure 1, length L of microband paste 41
Usually half-wavelength, two open end slot fields that radiation mainly has spacing L are produced.
During practical operation, can as Figure 1-3, when energy is launched by total port S2 of the second power distribution sub-network 22
During with receiving, patch array antenna A1, A2, A3, A4, A5 and A6 work.When energy is by the first power distribution sub-network 21
When total port S1 transmittings and reception, patch array antenna A3, A4, A5, A6, A7 and A8 work.
The effect of the present invention can be further illustrated by following experiment test.
To show service behaviour, following test operation can be carried out using above structure and data creating test block herein：
Test environment：Microwave Measurement And Adjustment room；
Test equipment：Vector network analyzer, turntable, Antenna testing system, standard horn, computer etc..
Total end of total port S1 and the second power distribution sub-network 22 to the first power distribution sub-network 21 of test block
The voltage standing wave ratio of mouth S2 is tested, and test result is as shown in Figure 8：As can be seen from Figure 8 in 24～24.3GHz frequency range models
In enclosing, the equal ＜ 1.4 of standing wave of two micro-strip array antennas realizes preferable impedance matching property.
To the micro-strip array antenna A that formed by the first power distribution sub-network 21 and patch array antenna 40 in its work
Azimuth plane and the gain of pitching face in 24～24.3GHz of frequency range is tested, and test result is as shown in figure 9, can from Fig. 9
Go out, the antenna maximum gain is 18dB or so, in pitching face, 3dB lobe widths are ± 4 °, and secondary lobe is less than 20dB, meets antenna and sets
Meter is required.
To the micro-strip array antenna B that formed by the second power distribution sub-network 22 and patch array antenna 40 in its work
Azimuth plane and the gain of pitching face in 24～24.3GHz of frequency range is tested, and test result is as shown in Figure 10：Can from Figure 10
Go out, the antenna maximum gain is 18dB or so, in pitching face, 3dB lobe widths are ± 4 °, and secondary lobe is less than 20dB, meets antenna and sets
Meter is required.
The darkroom test result of above-mentioned micro-strip array antenna A and micro-strip array antenna B is shown：The performance of two antennas has
Preferable concordance.
To micro-strip array antenna A and micro-strip array antenna B according to the phase method angle measuring principle shown in Fig. 7, wherein receiving day
Line a is micro-strip array antenna A, and reception antenna b is micro-strip array antenna B.In micro-strip array antenna A and micro-strip array antenna
Azimuth plane and the gain of pitching face in B 24～24.3GHz of working frequency range is tested, and test result is as shown in figure 11：From Figure 11
As can be seen that two micro-strip array antenna peak-peaks are of substantially equal, zero is deep in 50dB or so, realizes well than width, ratio
Mutually lateral function, meets Antenna Design requirement.
Claims (10)
1. a kind of micro-strip array antenna, it is characterised in that：This micro-strip array antenna includes dielectric-slab (10) and is attached at medium
Patch array antenna (40) at the plate face of plate (10) side, is pasted with micro-strip linear heat generation rate point at another lateral plates of dielectric-slab (10)
Distribution network (20), dielectric-slab (10) is the ground of sandwiched metal between double-deck plate body and two-layer plate body (11)；Wherein：
First power distribution sub-network (21) and second power of the microstrip line power distributing network (20) including one point of six tunnel
Distribution sub-network (22), two groups of sub-networks are the T-shaped work(parallel circuit of mutually isostructural three-level, and six branches of every group of sub-network
Port is distributed according to Chebyshev 25dB amplitude weightings；The branch port of two groups of sub-networks is toward each other；First power distribution
The branch port that two two grades T-shaped work(parallel circuits of sub-network (21) are formed is with the second power distribution sub-network (22) wherein
Between the branch port that the T-shaped work(parallel circuit of a pair of three-levels is formed, and two two grades of T of the second power distribution sub-network (22)
Branch port and the T-shaped work(parallel circuit institute of one pair of which three-level of the first power distribution sub-network (21) that type work(parallel circuit is formed
It is connected by the Wilkinson power divider (24) with the arc phase shifter (23) between the branch port of formation；First power
Another branch port that the T-shaped work(parallel circuit of three-level is formed of distribution sub-network (21) and the second power distribution sub-network (22)
Another branch port that the T-shaped work(parallel circuit of three-level is formed at be respectively connected with phase shift micro-strip line segment (25)；Eight coaxial feeds
Electric probe (30) is accordingly arranged in respectively four phase shift micro-strip line segment (25) ends and four groups of Wilkinson power dividers (24)
Total port and vertical are through dielectric-slab (10) so as to the patch array day being connected at another lateral plates of dielectric-slab (10)
Line (40) place；
, for eight row and along spaced in parallel to each other uniform, each column array plaster unit is by two groups along coaxial for patch array antenna (40)
The chip unit that feed probes (30) axis for axis symmetry is arranged is constituted, and every group of chip unit includes six along chip unit arrangement side
The microband paste (41) being distributed to arranged for interval successively and by Chebyshev 25dB amplitude weightings；With the phase at group chip unit
Spacing is equal to and passes through between 1/2nd wavelength, and each adjacent two panels microband paste (41) between adjacent two panels microband paste (41)
The impedance matching section (42) of triangle flechette-type gradual change wire connects each other；With the close coaxial feed probe (30) of every group of chip unit
Place side be inner side, the parallel chip unit cloth of the triangular arrowheads pointing direction of each impedance matching section (42) at every group of chip unit
Put direction and point to outermost microband paste (41) place；In same row patch array antenna (40), coaxial feed probe (30)
It is direct-connected between the relative immediate microband paste (41) on one of which chip unit, and with another group of chip unit on phase
To being connected each other by 180 ° of phase shifters (43) between immediate microband paste (41).
2. a kind of micro-strip array antenna according to claim 1, it is characterised in that：It is described corresponding for connecting each sub-network
The phase shifter (43) of branch port is symmetrically distributed at two branch ports of Wilkinson power divider (24), Wilkinson work(point
100 Ω isolation resistances (26) have also been bridged at two branch ports of device (24).
3. a kind of micro-strip array antenna according to claim 1, it is characterised in that：Microstrip line power distributing network (20)
The end appearance of each branch port is in the circular arc columnar structure with coaxial feed probe (30) coaxially to each other.
4. a kind of micro-strip array antenna according to claim 1, it is characterised in that：It is micro- for attaching on dielectric-slab (10)
The side plate face of band wire power distributing network (20) is arranged with vallecular cavity, so that microstrip line power distributing network (20) and the groove
Chamber encloses to form air back of the body chamber (12) jointly, and trend and microstrip line power distributing network (20) place of air back of the body chamber (12) believe
Number travel path is consistent.
5. a kind of micro-strip array antenna according to claim 1 or 2 or 3 or 4, it is characterised in that：The dielectric-slab (10)
Profile is in rectangular tabular and the parallel chip unit arranged direction of its length direction, encloses around dielectric-slab (10) one and arranges rectangle gold
Category circle (44)；Perpendicular media plate (10) on rectangular metal circle (44) and metallization is set altogether hole (44a), each metallization hole altogether
(44a) along rectangular metal circle (44) arranged direction successively uniformly at intervals；Isolate per metal is arranged between two adjacent groups chip unit
Bar (45), parallel dielectric-slab (10) length direction of metal isolating bar (45) length direction, and metal isolating bar (45) two ends are distinguished
It is connected at two minor faces of rectangular metal circle (44)；There is metallization blind uniformly at intervals successively along metal isolating bar (45) length direction
Hole (45a).
6. a kind of micro-strip array antenna according to claim 1 or 2 or 3 or 4, it is characterised in that：Every group of chip unit
Positioned at outermost microband paste (41) place, metallization short circuit hole (46) is set.
7. a kind of micro-strip array antenna according to claim 6, it is characterised in that：On the same microband paste (41)
Metallization short circuit hole (46) for three and uniformly at intervals sequentially, the arranged direction and chip unit of the metallization short circuit hole (46)
Arranged direction is perpendicular to one another.
8. a kind of micro-strip array antenna according to claim 1 or 2 or 3 or 4, it is characterised in that：This micro-strip array antenna
Also include around coaxial feed probe (30) and four plated-through holes (47) of circumferentially equidistant arrangement.
9. a kind of micro-strip array antenna according to claim 1 or 2 or 3 or 4, it is characterised in that：The microband paste
(41) it is rectangular patch or U-shaped paster.
10. a kind of micro-strip array antenna according to claim 1 or 2 or 3 or 4, it is characterised in that：Dielectric-slab (10) is used
Material is the sheet materials of Rogers 4350, and its dielectric constant is 3.66, and thickness is 0.508mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611125140.7A CN106602244A (en) | 2016-12-09 | 2016-12-09 | Micro-strip array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611125140.7A CN106602244A (en) | 2016-12-09 | 2016-12-09 | Micro-strip array antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106602244A true CN106602244A (en) | 2017-04-26 |
Family
ID=58597673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611125140.7A Withdrawn CN106602244A (en) | 2016-12-09 | 2016-12-09 | Micro-strip array antenna |
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| Country | Link |
|---|---|
| CN (1) | CN106602244A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108987911A (en) * | 2018-06-08 | 2018-12-11 | 西安电子科技大学 | A kind of millimeter wave wave beam forming micro-strip array antenna and design method based on SIW |
| CN108987920A (en) * | 2018-07-26 | 2018-12-11 | 上海保隆汽车科技股份有限公司 | A kind of back feed type 24GHz millimeter wave array antenna |
| CN109119769A (en) * | 2018-08-13 | 2019-01-01 | 上海慧昌智能交通***有限公司 | A kind of array antenna and its implementation for traffic information detection radar |
| CN109845032A (en) * | 2017-09-25 | 2019-06-04 | 华为技术有限公司 | Antenna assembly and terminal device |
| CN110048225A (en) * | 2019-04-03 | 2019-07-23 | 南京理工大学 | Micro-strip array antenna |
| CN112768877A (en) * | 2020-12-15 | 2021-05-07 | 杭州华智超成技术有限公司 | Pitching direction deflection beam vehicle-mounted forward short-distance radar antenna |
| CN114498011A (en) * | 2021-12-29 | 2022-05-13 | 中电科创智联(武汉)有限责任公司 | High-performance microstrip array antenna |
| CN115470660A (en) * | 2022-10-31 | 2022-12-13 | 中国西安卫星测控中心 | Spherical column area array difference beam zero depth optimization method and device |
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2016
- 2016-12-09 CN CN201611125140.7A patent/CN106602244A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10985458B2 (en) | 2017-09-25 | 2021-04-20 | Huawei Technologies Co., Ltd. | Antenna apparatus and terminal device |
| CN109845032A (en) * | 2017-09-25 | 2019-06-04 | 华为技术有限公司 | Antenna assembly and terminal device |
| CN108987911B (en) * | 2018-06-08 | 2020-07-31 | 西安电子科技大学 | Millimeter wave beam forming microstrip array antenna based on SIW and design method |
| CN108987911A (en) * | 2018-06-08 | 2018-12-11 | 西安电子科技大学 | A kind of millimeter wave wave beam forming micro-strip array antenna and design method based on SIW |
| CN108987920A (en) * | 2018-07-26 | 2018-12-11 | 上海保隆汽车科技股份有限公司 | A kind of back feed type 24GHz millimeter wave array antenna |
| CN109119769A (en) * | 2018-08-13 | 2019-01-01 | 上海慧昌智能交通***有限公司 | A kind of array antenna and its implementation for traffic information detection radar |
| CN110048225A (en) * | 2019-04-03 | 2019-07-23 | 南京理工大学 | Micro-strip array antenna |
| CN112768877A (en) * | 2020-12-15 | 2021-05-07 | 杭州华智超成技术有限公司 | Pitching direction deflection beam vehicle-mounted forward short-distance radar antenna |
| CN112768877B (en) * | 2020-12-15 | 2022-08-23 | 杭州华智超成技术有限公司 | Pitching direction deflection beam vehicle-mounted forward short-distance radar antenna |
| CN114498011A (en) * | 2021-12-29 | 2022-05-13 | 中电科创智联(武汉)有限责任公司 | High-performance microstrip array antenna |
| CN114498011B (en) * | 2021-12-29 | 2023-12-15 | 中电科创智联(武汉)有限责任公司 | High-performance microstrip array antenna |
| CN115470660A (en) * | 2022-10-31 | 2022-12-13 | 中国西安卫星测控中心 | Spherical column area array difference beam zero depth optimization method and device |
| CN115470660B (en) * | 2022-10-31 | 2023-03-14 | 中国西安卫星测控中心 | Spherical-cylindrical-area-array difference beam zero-depth optimization method and device |
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