CN107369899A - Based on multimode resonator filter antenna array - Google Patents
Based on multimode resonator filter antenna array Download PDFInfo
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- CN107369899A CN107369899A CN201710585786.1A CN201710585786A CN107369899A CN 107369899 A CN107369899 A CN 107369899A CN 201710585786 A CN201710585786 A CN 201710585786A CN 107369899 A CN107369899 A CN 107369899A
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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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- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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Abstract
The invention discloses one kind to be based on multimode resonator filter antenna array, the filter antenna array includes the symmetrically placed double stacked micro-strip paster antenna of four identicals and a power distributing network for carrying one point four, described double stacked micro-strip paster antenna includes the first micro-strip paster antenna and the second micro-strip paster antenna, and described one point four of power distributing network includes impedance conversion microstrip line, anti-phase power distribution microstrip line, tap coupler microstrip line, the dual-mode resonator of minor matters loading and with the T-shaped microstrip line of phase power distribution.The present invention devises a filtered power distribution network i.e. with filtering and with power dividing function, the last single order of the micro-strip paster antenna of double stacked as filter network, improves filter order, while edge is selectively improved.Meanwhile the structure of antenna is compact, high gain, filtering characteristic is good.
Description
Technical field
The present invention relates to mobile communication technology field, and in particular to one kind is based on multimode resonator filter antenna array.
Background technology
Antenna-feedback system is the front end of wireless communication system, is the indispensable critical component of wireless communication system.Antenna feeder
System includes antenna, wave filter and duplexer, and conventional method is that three is individually designed, is then attached with radio-frequency cable.Lack
Point is that three is required for matching network alone to be matched with 50 ohm of feeder lines, brings the problem of volume is big, total amount weight, together
When, excessive matching network brings the shortcomings that loss is big.
With the development of radio communication, communication system be increasingly intended to miniaturization and it is integrated, therefore, integrated day
Feedback system has great demand.Filter antenna, which combines antenna and wave filter, to be designed, and enables to radio-frequency front-end system
Structure it is compacter, reduce unnecessary loss and introduce so that the miniaturization of communication system and integrated be more prone to realize.
In existing technology, filter antenna is mainly designed to an antenna and wave filter cascaded design, connects between them
Connect port Impedance and be no longer designed as 50 ohm, and be designed to an optimal impedance.And the bandwidth of antenna is compared with wave filter
Bandwidth will width, then filter out desired frequency range with wave filter.Such design can bring the deterioration of marginal frequency selectivity, unfavorable
In communication.
Therefore, the integration of filter antenna and Integration Design, filter network is also power distributing network, aerial radiation
Unit is designed to the last single order of wave filter, improves frequency selectivity and spread bandwidth, is necessary.
The content of the invention
The invention aims to solve drawbacks described above of the prior art, there is provided one kind is filtered based on multimode resonator
Aerial array.
The purpose of the present invention can be reached by adopting the following technical scheme that：
One kind is based on multimode resonator filter antenna array, including upper layer medium substrate 9 and layer dielectric substrate 10, upper strata
The upper surface of medium substrate 9 is printed with by the first symmetrically placed micro-strip paster antenna 1 of four identicals, layer dielectric substrate 10
Upper surface be printed with one point four of filtering work(carried by the second symmetrically placed micro-strip paster antenna 2 of four identicals and one
Can power distributing network 3, its lower surface is printed with reflection floor 11, the first described micro-strip paster antenna 1 and described the
The stacked on top of two micro-strip paster antenna 2, which is set, forms double stacked micro-strip paster antenna, wherein the first described microband paste day
Line 1 is parasitic patch, and the second described micro-strip paster antenna 2 is driving paster, and the first described micro-strip paster antenna 1 includes the
One parasitic patch 12, the second parasitic patch 13, the parasitic patch 15 of trixenie paster 14 and the 4th, the second described microband paste
Antenna 2 includes the first driving paster 16, second and drives paster the 17, the 3rd to drive paster 18 and the 4th to drive paster 19；
One end of the described power distributing network 3 with one point four of filter function is connected with port, the other end and institute
The second micro-strip paster antenna 2 stated is connected.
Further, the power distributing network 3 of described one with filter function point four includes the first impedance transformation line
7th, the second impedance transformation line 30, the 3rd impedance transformation line 31, the 4th impedance transformation line 32, anti-phase power distribution microstrip line 4, tap
Coupled microstrip line 8, minor matters loading dual-mode resonator 5 and with the T-shaped microstrip line 6 of phase power distribution；Described the first impedance conversion
Line 7 includes the 5th impedance transformation line 33, the 6th impedance transformation line 34, the 7th impedance transformation line 35, the 8th impedance transformation line 36, institute
The anti-phase power distribution microstrip line 4 stated includes the first anti-phase power distribution microstrip line 22, the second anti-phase power distribution microstrip line 23,
Described tap coupler microstrip line 8 includes the first tap coupler microstrip line 28, the second tap coupler microstrip line 29, described minor matters
The dual-mode resonator 5 of loading includes the first dual-mode resonator 20, the second dual-mode resonator 21, wherein, the first described bimodulus is humorous
The device that shakes is made up of the first U-shaped open-circuit line 24, the second open-circuit line 25 for being carried in the U-shaped groove segment of the first open-circuit line 24, described
The second dual-mode resonator by the 3rd U-shaped open-circuit line 26, be carried in the 4th open-circuit line of the U-shaped groove segment of the 3rd open-circuit line 26
27 compositions.
Further, described the first anti-phase power distribution microstrip line 22 and the described second anti-phase power distribution microstrip line
23 respectively with the 5th impedance transformation line 33, the 7th impedance transformation line 35 and the 6th impedance transformation line 34, the 8th impedance transformation line 36
Be connected, the first described tap coupler microstrip line 28 and one end of the second described tap coupler microstrip line 29 respectively with it is described
First anti-phase power distribution microstrip line 22 is connected with the described second anti-phase power distribution microstrip line 23, and the first described tap
The other end of coupled microstrip line 28 and the second described tap coupler microstrip line 29 respectively with the first described dual-mode resonator 20
The first open-circuit line 24, the second described dual-mode resonator 21 the 3rd open-circuit line 26 be connected；
Described the first open-circuit line 24, the 3rd described open-circuit line 26 and the described T-shaped microstrip line 6 of same phase power distribution it
Between coupling gap, the described T-shaped microstrip line 6 of same phase power distribution and one end phase of the second described impedance transformation line 30 be present
Even, the other end of the second described impedance transformation line 30 is connected with one end of the 3rd described impedance transformation line 31, and described the
The other end of three impedance transformation lines 31 is connected with one end of the 4th described impedance transformation line 32, the 4th described impedance transformation line
32 other ends are connected with excitation port；
The described T-shaped microstrip line 6 of same phase power distribution is arranged on the first described open-circuit line 24 and the described the 3rd open circuit
The side of line 26, the described T-shaped microstrip line 6 of same phase power distribution and the first described open-circuit line 24 and the described the 3rd open circuit
Exist between line 26 coupling gap, the first described dual-mode resonator 20 and the second described dual-mode resonator 21 with it is described same
The T-shaped microstrip line 6 of phase power distribution passes through aperture-coupled；The first described dual-mode resonator 20 and the second described bimodulus are humorous
The device 21 that shakes also is taken out by the first described tap coupler microstrip line 28 and the second described tap coupler microstrip line 29 respectively
Head couple feed.
Further, one end of the power distributing network 3 of the described one-to-two with filter function passes through described
Four impedance transformation lines 32 are connected with port, and the other end passes through the 5th described impedance transformation line 33, the 6th impedance transformation line 34,
Seven impedance transformation lines 35, the 8th impedance transformation line 36 drive paster the 17, the 3rd with the first described driving paster 16, second respectively
Driving paster 18 is connected with the 4th driving paster 19.
Further, the first described tap coupler microstrip line 28 and the second described tap coupler microstrip line 29 are put respectively
Put apart from the first described anti-phase power distribution microstrip line 22 and the described second anti-phase midpoint of power distribution microstrip line 23
The quarter-wave strong point of working frequency.
Further, the 5th described impedance transformation line 33, the 6th impedance transformation line 34, the 7th impedance transformation line 35,
Eight impedance transformation lines 36 are separately positioned on the first described driving paster 16, second and drive paster the 17, the 3rd to drive the and of paster 18
The stage casing at the edge of the 4th driving paster 19.
Further, first that four identicals of the upper surface of upper layer medium substrate 9 described in being printed on are symmetrically placed is micro-
With paster antenna 1 and it is printed on symmetrically placed the second micro-strip patch of four identicals of the described upper surface of layer dielectric substrate 10
Chip antenna 2 and described anti-phase power distribution microstrip line 4 can produce a paster antenna with three close modes of resonance
Array.
Further, the first described dual-mode resonator 20 of minor matters loading, the second dual-mode resonator 21 and with three
The patch antenna array of close mode of resonance be coupled caused by filter antenna array required frequency signal can be enable to pass through.
Further, the first described dual-mode resonator 20 of minor matters loading and the second dual-mode resonator 21 can be outside passbands
Both sides respectively produce a radiation zero.
Further, the institute of the first open-circuit line 24 of the first described dual-mode resonator 20 of minor matters loading and minor matters loading
3rd open-circuit line 26 of the second dual-mode resonator 21 stated can produce a transmission zero in upper stopband, and minor matters load described
4th open-circuit line of the second described dual-mode resonator 21 of the second open-circuit line 25 and the minor matters loading of the first dual-mode resonator 20
27 can introduce a transmission zero in lower stopband, by adjusting the first open-circuit line 24, the second open-circuit line 25, the and of the 3rd open-circuit line 26
The length of 4th open-circuit line 27, with the coupling between the T-shaped open-circuit line 24 of microstrip line 6 and first of phase power distribution and the 3rd open-circuit line 26
Close that gap, the first tap coupler microstrip line 28 be located at the position of the first open-circuit line 24, the second tap coupler microstrip line 29 is located at the
The position of three open-circuit lines 26, can enable the signal of desired frequency pass through.
The present invention is had the following advantages relative to prior art and effect：
1st, power distributing network and the filter network design of array antenna are combined together by the present invention, have devised one both
Filtered power distribution network with filter function and with power dividing function.Therefore the structure of antenna is compact.Together
When, the present invention substantially increases the gain of antenna by the aerial array of four units of design.
2nd, last single order of the present invention by double-layer paster antenna cell design for wave filter, adds the pattern in passband,
Frequency selectivity is improved, extends bandwidth.
3rd, single order of the present invention using power distribution microstrip line as filter network, improves the validity of structure, maximum
It make use of structure.Meanwhile the exponent number of filter network is also improved, improve frequency selectivity.
4th, the present invention is by designing the length of SLR resonators, with the mode of one of port direct feed, with outer two
Side respectively introduces a transmission zero, improves Out-of-band rejection.
Brief description of the drawings
Fig. 1 is the numbering mark of the total schematic diagram and chief component of the present invention；
Fig. 2 is total schematic diagram of the present invention and the numbering mark of refinement；
Fig. 3 is the top view of two unit double stacked paster antennas in the present invention；
Fig. 4 is the top view of medium substrate at the middle and upper levels of the invention；
Fig. 5 is the top view of layer dielectric substrate in the present invention；
Fig. 6 is the size marking figure of medium substrate surface structure at the middle and upper levels of the invention；
Fig. 7 is the size marking figure of layer dielectric upper surface of base plate structure in the present invention；
Fig. 8 is the emulation S parameter curve map of two unit double stacked paster antenna examples in the present invention；
Fig. 9 is the emulation S parameter curve map of SLR resonator examples in the present invention；
Figure 10 is the test S parameter curve map of antenna in the present invention；
Figure 11 is the simulated gain of antenna in the present invention with frequency variation curve；
Figure 12 is that the E faces of antenna in the present invention emulate directional diagram；
Figure 13 is that the H faces of antenna in the present invention emulate directional diagram.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment
Referring to Figures 1 and 2, present embodiment discloses one kind to be based on multimode resonator filter antenna array, top dielectric base
The upper surface of plate 9 is printed with by the first symmetrically placed micro-strip paster antenna 1 of four identicals, the upper table of layer dielectric substrate 10
Face is printed with by the second symmetrically placed micro-strip paster antenna 2 of four identicals and the work(with one point four of filter function
Rate distributes network 3, and its lower surface is printed with reflection floor 11.
The first wherein described micro-strip paster antenna 1 is parasitic patch, and the second micro-strip paster antenna 2 is to drive paster, institute
The first micro-strip paster antenna 1 stated includes the first parasitic patch 12, the second parasitic patch 13, trixenie paster 14 and the 4th and posted
Raw paster 15, the second described micro-strip paster antenna 2 include the first driving paster 16, second and drive the driving patch of paster the 17, the 3rd
Piece 18 and the 4th drives paster 19.Also, the stacked on top of the second micro-strip paster antenna 2 of the sum of the first micro-strip paster antenna 1 is set
Double stacked micro-strip paster antenna is formed,
The power distributing network 3 of described one with filter function point four includes the first impedance transformation line 7, the second impedance
Transformation line 30, the 3rd impedance transformation line 31, the 4th impedance transformation line 32, anti-phase power distribution microstrip line 4, tap coupler microstrip line
8th, minor matters loading dual-mode resonator 5 and with the T-shaped microstrip line 6 of phase power distribution；The first described impedance transformation line 7 includes the 5th
Impedance transformation line 33, the 6th impedance transformation line 34, the 7th impedance transformation line 35, the 8th impedance transformation line 36, described anti-phase work(
Rate distribution microstrip line 4 includes the first anti-phase power distribution microstrip line 22, the second anti-phase power distribution microstrip line 23, described tap
Coupled microstrip line 8 includes the first tap coupler microstrip line 28, the second tap coupler microstrip line 29, the bimodulus of described minor matters loading
Resonator 5 includes the first dual-mode resonator 20, the second dual-mode resonator 21, and first and second described dual-mode resonator is respectively by U-shaped
The first open-circuit line 24, be carried in the first U-shaped open-circuit line groove segment the second open-circuit line 25 and the 3rd U-shaped open-circuit line 26,
The 4th open-circuit line 27 for being carried in the 3rd U-shaped open-circuit line groove segment forms.
One end of the described power distributing network 3 with one point four of filter function by the 4th impedance transformation line 32 with
Port is connected, and the other end is connected with the second described micro-strip paster antenna 2.
The structure of filter antenna array is symmetrical, and with reference to figure 3, wherein first is chosen from four unit filtering aerial arrays
Paster the 16, the 3rd is driven to drive paster 18, the first parasitic patch 12, trixenie paster 14, the 5th impedance transformation line the 33, the 7th
35 and first anti-phase power distribution microstrip line 22 of impedance transformation line forms the aerial array of Unit two, passes through reasonable selection chi
It is very little, first and third driving paster, first and third parasitic patch and the first anti-phase power distribution microstrip line can be caused to produce a tool
There is the patch antenna array of three close modes of resonance.As an example, when centre frequency is chosen for 2.65GHz, use
Relative dielectric constant is 2.55, dielectric loss angle 0.003, and thickness is 0.8mm PTFE medium substrate.First and third
The length and width of driving paster is all 33.8mm, and the length and width of first and third parasitic patch is all 41.5mm, the five, the seven
Impedance conversion micro-strip line length is all 10.8mm, and width is all 4.6mm, and the length of the first anti-phase power distribution microstrip line is
46.2mm, width 1.2mm, the height of air layer is 6.5mm, at away from the first anti-phase power distribution microstrip line midpoint 19.5mm
Excitation.Fig. 8 is S parameter at this moment, it can be seen that the resonance of double stacked micro-strip paster antenna and anti-phase power distribution microstrip line
Pattern is close.
The dual-mode resonator 5 of minor matters loading includes the first dual-mode resonator 20 and the second dual-mode resonator 21, two bimodulus
Resonator is symmetrically the same.The first dual-mode resonator 20 is selected to be studied, it is by the first U-shaped open-circuit line 24, loading
Formed in the second open-circuit line 25 of the first U-shaped open-circuit line groove segment.The one end of first dual-mode resonator 20 and same phase power point
Gap, by aperture-coupled, the other end and the phase of the first tap coupler microstrip line 28 are coupled with existing between T-shaped microstrip line 6
Even, being fed by tap coupler, the first open-circuit line 24 of the first dual-mode resonator can produce a transmission zero in upper stopband, the
Two open-circuit lines 25 can introduce a transmission zero in lower stopband.Pass through reasonable selection the first open-circuit line 24, second open-circuit line 25
Length, the coupling spacing of slot-coupled, the position of tap coupler port, can enable the signal of desired frequency pass through.As one
Individual example, when centre frequency is chosen for 2.65GHz, relative dielectric constant is used as 2.55, dielectric loss angle 0.003 is thick
The PTFE medium substrate for 0.8mm is spent, the length of the first open-circuit line 24 is 36.2mm, and the second open-circuit line 25 is
23.2mm.Fig. 9 is the S parameter of the dual-mode resonator of this when, it can be seen that has two near centre frequency 2.65GHz
Similar pattern, respectively there is a zero point with outer 2.2GHz and 3.1GHz, improving Out-of-band rejection.
During work, signal is sent into from port, passes through the 4th impedance transformation line 32, the 3rd impedance transformation line 31, the second impedance
Transformation line 30 is transmitted to the T-shaped microstrip line 6 of same phase power distribution, is then given with identical amplitude, identical phase by slot-coupled
First dual-mode resonator 20 and the second dual-mode resonator 21, then it is micro- by the first tap coupler microstrip line 28 and the second tap coupler
Band line 29 is transmitted to the first anti-phase 22 and second anti-phase power distribution microstrip line 23 of power distribution microstrip line respectively, anti-phase by first
The signal of power distribution microstrip line is assigned to the first driving patch with identical amplitude, opposite phase (phase difference 180 degree)
Piece 16 and the 3rd drives paster 18, at the same by the second anti-phase power distribution microstrip line signal by with identical amplitude, opposite
Phase (phase difference 180 degree) be assigned to the second driving paster 17 and the 4th driving paster 19, finally drive the energy of paster
It is coupled in parasitic patch.Because the electric current in parasitic patch is all in the same direction, therefore can be folded in the same direction in the positive Z-direction of antenna
Add, produce higher antenna gain.
The electrical structure diagram of the respectively two medium substrate upper and lower surfaces of Fig. 4,5, striped fill part are that conductive copper covers
Structure, remainder is medium substrate.
Fig. 6,7 be each several part electrical structure size marking figure.
With reference to Fig. 2, Fig. 6, Fig. 7 size marking, the design parameter of antenna is as follows in the present embodiment：Two dielectric-slabs are
PTFE medium plate plate, thickness 1c, 3c 0.8mm, width 1b are 166mm, and length 1a is also 166mm.Two dielectric-slabs
Between height 2c be 6.5mm.The length of side 2a, 2b of parasitic patch are 41.5mm, spacing 4c, 5c 42.5mm.Drive paster
The length of side 3a, 3b be all 33.8mm, spacing 6c, 7c 50.2mm.Power distributing network into symmetrical, its key dimension 4a,
5a, 6a, 7a, 8a, 9a, 10a, 11a, 12a, 13a, 14a, respectively 10.8mm, 8.6mm, 5mm, 17.3mm, 7.1mm,
13.6mm, 23.2mm, 17.8mm, 19mm, 19mm, 28mm.4b, 5b, 6b, 7b, 8b, 9b, 10b, 11b, 12b, 13b, 14b distinguish
For 4.6mm, 1.2mm, 2.2mm, 1mm, 2mm, 0.5mm, 2.2mm, 5.76mm, 3.1mm, 2.64mm, 2.2mm.The filter antenna
Array is operated in centre frequency 2.65GHz or so, with a width of 460MHz, has five modes of resonance, such as Figure 10 in band.In work frequency
In the range of band, the gain of antenna is substantially all more than 11dBi, as shown in figure 11.Cross polarization is more than 30dB, such as the emulation of antenna
Directional diagram such as 12, shown in 13.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. one kind is based on multimode resonator filter antenna array, including upper layer medium substrate (9) and layer dielectric substrate (10), on
The upper surface of layer medium substrate (9) is printed with by symmetrically placed the first micro-strip paster antenna (1) of four identicals, layer dielectric
The upper surface of substrate (10) is printed with carries one point by symmetrically placed the second micro-strip paster antenna (2) of four identicals and one
The power distributing network (3) of four filter function, its lower surface are printed with reflection floor (11), it is characterised in that described the
One micro-strip paster antenna (1) and described the second micro-strip paster antenna (2) stacked on top, which are set, forms double stacked microband paste
Antenna, wherein described the first micro-strip paster antenna (1) is parasitic patch, described the second micro-strip paster antenna (2) is driving
Paster, described the first micro-strip paster antenna (1) include the first parasitic patch (12), the second parasitic patch (13), trixenie
Paster (14) and the 4th parasitic patch (15), described the second micro-strip paster antenna (2) include the first driving paster (16), second
Drive paster (17), the 3rd driving paster (18) and the 4th driving paster (19)；
One end of the described power distributing network (3) with one point four of filter function is connected with port, the other end with it is described
The second micro-strip paster antenna (2) be connected.
2. according to claim 1 be based on multimode resonator filter antenna array, it is characterised in that described has filtering
The power distributing network (3) of one point four of function includes the first impedance transformation line (7), the second impedance transformation line (30), the 3rd resistance
Resistance thread-changing (31), the 4th impedance transformation line (32), anti-phase power distribution microstrip line (4), tap coupler microstrip line (8), minor matters
The dual-mode resonator (5) of loading and with the T-shaped microstrip line of phase power distribution (6)；The first described impedance transformation line (7) includes the 5th
Impedance transformation line (33), the 6th impedance transformation line (34), the 7th impedance transformation line (35), the 8th impedance transformation line (36), it is described
Anti-phase power distribution microstrip line (4) include the first anti-phase power distribution microstrip line (22), the second anti-phase power distribution microstrip line
(23), described tap coupler microstrip line (8) includes the first tap coupler microstrip line (28), the second tap coupler microstrip line
(29), the dual-mode resonator (5) of described minor matters loading includes the first dual-mode resonator (20), the second dual-mode resonator (21),
Wherein, the first described dual-mode resonator by U-shaped the first open-circuit line (24), be carried in U-shaped the first open-circuit line (24) groove
Section the second open-circuit line (25) composition, the second described dual-mode resonator by the 3rd U-shaped open-circuit line (26), be carried in it is U-shaped
4th open-circuit line (27) composition of the 3rd open-circuit line (26) groove segment.
3. according to claim 2 be based on multimode resonator filter antenna array, it is characterised in that described first is anti-phase
Power distribution microstrip line (22) and the described second anti-phase power distribution microstrip line (23) respectively with the 5th impedance transformation line (33),
7th impedance transformation line (35) is connected with the 6th impedance transformation line (34), the 8th impedance transformation line (36), the first described tap
One end of coupled microstrip line (28) and the second described tap coupler microstrip line (29) is divided with the first described anti-phase power respectively
It is connected with microstrip line (22) with the described second anti-phase power distribution microstrip line (23), and the first described tap coupler microstrip line
(28) and the second described tap coupler microstrip line (29) the other end respectively with described the first dual-mode resonator (20)
One open-circuit line (24), the 3rd open-circuit line (26) of described the second dual-mode resonator (21) are connected；
Described the first open-circuit line (24), the 3rd described open-circuit line (26) and the described same T-shaped microstrip line of phase power distribution (6)
Between coupling gap be present, the described same T-shaped microstrip line of phase power distribution (6) and the one of the second described impedance transformation line (30)
End is connected, and the other end of the second described impedance transformation line (30) is connected with one end of the 3rd described impedance transformation line (31),
The other end of the 3rd described impedance transformation line (31) is connected with one end of the 4th described impedance transformation line (32), and described
Four impedance transformation line (32) other ends are connected with excitation port；
The described same T-shaped microstrip line of phase power distribution (6) is arranged on described the first open-circuit line (24) and the described the 3rd open circuit
The side of line (26), the described same T-shaped microstrip line of phase power distribution (6) and described the first open-circuit line (24) and described
Coupling gap, described the first dual-mode resonator (20) and the second described dual-mode resonator between three open-circuit lines (26) be present
(21) aperture-coupled is passed through with the described same T-shaped microstrip line of phase power distribution (6)；Described the first dual-mode resonator (20)
Also pass through the first described tap coupler microstrip line (28) and described second respectively with described the second dual-mode resonator (21)
Tap coupler microstrip line (29) carries out tap coupler feed.
4. according to Claims 2 or 3 based on multimode resonator filter antenna array, it is characterised in that described has
One end of the power distributing network (3) of the one-to-two of filter function passes through the 4th described impedance transformation line (32) and port phase
Even, the other end by the 5th described impedance transformation line (33), the 6th impedance transformation line (34), the 7th impedance transformation line (35),
8th impedance transformation line (36) drives paster with the first described driving paster (16), the second driving paster (17), the 3rd respectively
(18) it is connected with the 4th driving paster (19).
5. according to Claims 2 or 3 based on multimode resonator filter antenna array, it is characterised in that described first
Tap coupler microstrip line (28) and the second described tap coupler microstrip line (29) are individually positioned in anti-phase apart from described first
The a quarter of the working frequency at power distribution microstrip line (22) and the described second anti-phase power distribution microstrip line (23) midpoint
At wavelength.
6. according to claim 4 be based on multimode resonator filter antenna array, it is characterised in that the 5th described impedance
Transformation line (33), the 6th impedance transformation line (34), the 7th impedance transformation line (35), the 8th impedance transformation line (36) are separately positioned on
Described first drives paster (16), the second driving paster (17), the 3rd driving paster (18) and the 4th driving paster (19)
The stage casing at edge.
7. according to any one of claims 1 to 6 be based on multimode resonator filter antenna array, it is characterised in that is printed on
Symmetrically placed the first micro-strip paster antenna (1) of four identicals of described upper layer medium substrate (9) upper surface and it is printed on
Symmetrically placed the second micro-strip paster antenna (2) of four identicals of described layer dielectric substrate (10) upper surface and described
Anti-phase power distribution microstrip line (4) patch antenna array with three close modes of resonance can be produced.
It is 8. any described based on multimode resonator filter antenna array according to claim 2 to 6, it is characterised in that minor matters add
Described the first dual-mode resonator (20), the second dual-mode resonator (21) and the paster day with three close modes of resonance carried
Linear array be coupled caused by filter antenna array required frequency signal can be enable to pass through.
It is 9. any described based on multimode resonator filter antenna array according to claim 2 to 6, it is characterised in that minor matters add
Described the first dual-mode resonator (20) and the second dual-mode resonator (21) carried can respectively produce a radiation in both sides outside passband
Zero point.
It is 10. any described based on multimode resonator filter antenna array according to claim 2 to 6, it is characterised in that minor matters add
The second described dual-mode resonator of the first open-circuit line (24) and the minor matters loading of described the first dual-mode resonator (20) carried
(21) the 3rd open-circuit line (26) can produce a transmission zero, the first described dual-mode resonator of minor matters loading in upper stopband
(20) the 4th open-circuit line (27) meeting of the second open-circuit line (25) and described the second dual-mode resonator (21) of minor matters loading exists
Lower stopband introduces a transmission zero, by adjust the first open-circuit line (24), the second open-circuit line (25), the 3rd open-circuit line (26) and
The length of 4th open-circuit line (27), with the T-shaped microstrip line of phase power distribution (6) and the first open-circuit line (24) and the 3rd open-circuit line (26)
Between coupling gap, that the first tap coupler microstrip line (28) is located at the position of the first open-circuit line (24), the second tap coupler is micro-
It is located at the position of the 3rd open-circuit line (26) with line (29), the signal of desired frequency can be enable to pass through.
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