CN106450749A - Pyramid horn filtering antenna based on waveguide structure - Google Patents
Pyramid horn filtering antenna based on waveguide structure Download PDFInfo
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- CN106450749A CN106450749A CN201610998517.3A CN201610998517A CN106450749A CN 106450749 A CN106450749 A CN 106450749A CN 201610998517 A CN201610998517 A CN 201610998517A CN 106450749 A CN106450749 A CN 106450749A
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- inductance diaphragm
- inductance
- resonator cavity
- diaphragm
- filter antenna
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- 238000001914 filtration Methods 0.000 title abstract description 12
- 230000005855 radiation Effects 0.000 claims abstract description 25
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims description 16
- 208000002925 dental caries Diseases 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000005388 cross polarization Methods 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract 1
- 238000004088 simulation Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
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- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a pyramid horn filtering antenna based on a waveguide structure. The filtering antenna has a filtering characteristic and a radiation characteristic at the same time, wherein the filtering characteristic is generated by four rectangular resonant cavities, and the radiation characteristic is generated by the last stage of resonant cavity and a pyramid horn together. The coupling strength between the adjacent resonant cavities, the external quality factor of a filter and the radiation quality factor of the antenna can be controlled by adjusting the width of an inductance diaphragm window. When the external quality factor of the filter is equal to the radiation quality factor of the antenna, mutual influence of a filtering unit and a radiation unit can be avoided. By introducing the pyramid horn, the radiation gain and directionality of the antenna can be improved, and the minor lobe is reduced. The filtering antenna provided by the invention has the advantages of gain flatness, high selectivity, low minor lobe, low cross polarization, simple and reliable structure and easiness integration, and is applicable to various communication systems.
Description
Technical field
The present invention relates to wireless communication technology field, and in particular to a kind of pyramid loudspeaker based on waveguiding structure filters day
Line.
Background technology
Antenna and microwave filter are that the systems such as modern microwave trunking traffic, satellite communication, radio communication are requisite
Primary Component.The mainly primary of antenna is to launch and receive electromagnetic signal, and the radiation direction of control signal.Microwave filter
Main Function be to filter out unwanted signal, i.e. low-loss by the useful signal in a certain frequency range, and by other
The frequency component of frequency range decays to extremely low level.Antenna and microwave filter are used as important ingredient in Circuits System
One of, the quality of its performance largely determines the work quality of system, and its size also directly affects whole system
Size and portability.
With the high speed development of Modern wireless communication demand, user is more and more wider to high-performance portable terminal unit demand
General.In conventional typical communication system, antenna and wave filter are typically seen as two independent subsystems separately to design
With optimize, due to influencing each other and port Impedance mismatch between device so that the antenna after cascade and wave filter overall performance
Deteriorate.In order to eliminate this impact, the two generally needs to increase an extra match circuit to be attached.This traditional
Method for designing causes system to become complicated, and size and loss can also be increased, it is difficult to meet Current wireless communication system small-sized
Change and high performance demand.Therefore, antenna and wave filter are carried out integrated, constitute compact conformation filter antenna, as one
Integral module not only can reduce size and the weight of system designing, and on the basis of radiation characteristic is not changed, permissible
Reduce loss, improves gain flatness and frequency selectivity, is improved the overall performance of system.
In prior art, ' 201310354413.5 ' patent application of Application No. ' high-gain filter antenna ', the patent is carried
A kind of micro-strip filter antenna structure for going out is as shown in figure 1, which includes resonator cavity and is placed at least one feed of resonance intracavity；Humorous
The chamber that shakes has for the metallic reflection plate for fixing feed, the metal enclosure frame being erected on reflecting plate, and encloses for covering metal
Above frame and metal gate from feed signal to extraradial through hole that be formed with for.By the way, the antenna can filter with
Integrated, while having the characteristics such as the simple, high-gain of feed.
In another prior art, number of patent application is that ' high out-of-side rejection cavity is filtered for ' 201510051241.3 ', patent application
Wave antenna array ', a kind of dielectric substrate integrated waveguide filter antenna structure that the patent is proposed is as shown in Fig. 2 its dielectric substrate
Upper utilization metal throuth hole surrounds the second symmetrically placed rectangular cavity of first rectangular cavity and two.At two second
Resonator cavity top position is provided with two radiating slots for radiation signal.The structure has preferable Out-of-band rejection ability,
But gain is relatively low, difficulty is applied in real system.
Content of the invention
The invention aims to solving waveguide horns in prior art to be difficult to be provided simultaneously with filtering characteristic and low
The defect of minor level, provides a kind of pyramid loudspeaker filter antenna based on waveguiding structure so as to simple structure, be easy to adjust
Humorous, frequency selectivity is high, minor level is little and the advantages of flat gain.
The purpose of the present invention can be reached by adopting the following technical scheme that：
A kind of pyramid loudspeaker filter antenna based on waveguiding structure, the filter antenna includes：Metal wave guide cavity 1 and pyramid
Loudspeaker 12；
Wherein, one end of the metal wave guide cavity 1 is used as signal input port 13, the other end as radiation port with described
Pyramid loudspeaker 12 connects；
The metal wave guide cavity 1 successively by the first inductance diaphragm 2 and the second inductance diaphragm 3, the 3rd inductance diaphragm 4 and
4th inductance diaphragm 5, the 5th inductance diaphragm 6 and the 6th inductance diaphragm 7, the 7th inductance diaphragm 8 and the 8th inductance diaphragm 9,
9th inductance diaphragm 10 and the tenth inductance diaphragm 11 are divided into the first resonator cavity 14, the second resonator cavity 15, the 3rd resonator cavity 16
With the 4th resonator cavity 17.
Further, the metal wave guide cavity 1 is rectangle.
Further, the pyramid loudspeaker 12 is opened along E face and H face simultaneously, for improving the radiation gain of filter antenna
And directionality, reduce minor level.
Further, first resonator cavity 14, second resonator cavity 15, the 3rd resonator cavity 16 and institute the 4th are humorous
The chamber 17 that shakes is the RSPUDTcell of half-wavelength, and work main mould is TE101 mould.
Further, first inductance diaphragm 2 and second inductance diaphragm 3 constitute window type hatch frame, are used for
Control the external sort factor of the filtering antenna signals input port.
Further, the 3rd inductance diaphragm 4 and the 4th inductance diaphragm 5 constitute window type hatch frame, are used for
Control the stiffness of coupling between first resonator cavity 14 and second resonator cavity 15.
Further, the 5th inductance diaphragm 6 and the 6th inductance diaphragm 7 constitute window type hatch frame, are used for
Control the stiffness of coupling between second resonator cavity 15 and the 3rd resonator cavity 16.
Further, the 7th inductance diaphragm 8 and the 8th inductance diaphragm 9 constitute window type hatch frame, are used for
Control the stiffness of coupling between the 3rd resonator cavity 16 and the 4th resonator cavity 17.
Further, the 9th inductance diaphragm 10 and the tenth inductance diaphragm 11 constitute window type hatch frame, use
In the radiation quality factor for controlling the filter antenna to radiate port.
Further, the 4th resonator cavity 17 functions simultaneously as the effect of irradiator.
The present invention is had the following advantages with respect to prior art and effect：
A kind of pyramid loudspeaker filter antenna based on waveguiding structure proposed by the present invention, it is while have filtering characteristic and spoke
Characteristic is penetrated, wherein filtering characteristic is produced by four rectangular cavities, radiation characteristic is common by afterbody resonator cavity and pyramid loudspeaker
With generation.By the width of inductance diaphragm window is adjusted, stiffness of coupling between adjacent resonators, the outside of wave filter can be controlled
The radiation quality factor of quality factor and antenna.When the external sort factor of wave filter is equal with aerial radiation quality factor,
Influencing each other for filter unit and radiating element can be avoided.By pyramid loudspeaker is introduced, the radiation gain of antenna can be improved
And directionality, reduce secondary lobe.Filter antenna proposed by the present invention has advantages below：Flat gain；High selectivity；Sidelobe；
Low-cross polarization；Simple and reliable for structure；It is easily integrated；Suitable for plurality of communication systems.
Description of the drawings
Fig. 1 is a kind of structure chart of the micro-strip filter antenna for proposing in prior art one；
Fig. 2 is the structure chart of the high out-of-side rejection cavity filter antenna array for proposing in prior art two；
Fig. 3 is the sectional view of the pyramid loudspeaker filter antenna based on waveguiding structure proposed by the present invention；
Fig. 4 is the perspective view of the pyramid loudspeaker filter antenna based on waveguiding structure proposed by the present invention；
Fig. 5 is filter antenna | S11 | proposed by the present invention and gain simulation result；
Fig. 6 is the H face Direction Pattern Simulation result at filter antenna mid frequency 10GHz proposed by the present invention；
Fig. 7 is the E face Direction Pattern Simulation result at filter antenna mid frequency 10GHz proposed by the present invention.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention is 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
The a part of 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 for being obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment
The sectional view of the guide filter antenna structure of the present invention is as shown in figure 3, the structure is symmetrical.Waveguide junction should be based on
The pyramid loudspeaker filter antenna of structure includes：Metal wave guide cavity 1 and pyramid loudspeaker 12.
The pyramid loudspeaker 12 is opened along E face and H face simultaneously, is mainly used in improving radiation gain and the directionality of antenna,
Reduce minor level.
The metal wave guide cavity 1 is rectangle.
One end of the metal wave guide cavity 1 is used as signal input port 13, and the other end is used as radiation port and the pyramid
Loudspeaker 12 connect.
The metal wave guide cavity 1 successively by the first inductance diaphragm 2 and the second inductance diaphragm 3, the 3rd inductance diaphragm 4 and
5th inductance diaphragm 5, the 5th inductance diaphragm 6 and the 6th inductance diaphragm 7, the 7th inductance diaphragm 8 and the 8th inductance diaphragm 9,
9th inductance diaphragm 10 and the tenth inductance diaphragm 11 are divided into the first resonator cavity 14, the second resonator cavity 15, the 3rd resonator cavity 16
With the 4th resonator cavity 17.
First resonator cavity 14, second resonator cavity 15, the 3rd resonator cavity 16 and the 4th resonator cavity 17 of institute are equal
For the RSPUDTcell of half-wavelength, its work main mould is TE101 mould.
Wherein, the 4th resonator cavity 17 functions simultaneously as the effect of irradiator.
Wherein, first inductance diaphragm 2 and second inductance diaphragm 3 constitute window type hatch frame, for controlling
The external sort factor of the filtering antenna signals input port；
3rd inductance diaphragm 4 and the 4th inductance diaphragm 5 constitute window type hatch frame, for controlling described the
Stiffness of coupling between one resonator cavity 14 and second resonator cavity 15；
5th inductance diaphragm 6 and the 6th inductance diaphragm 7 constitute window type hatch frame, for controlling described the
Stiffness of coupling between two resonator cavitys 15 and the 3rd resonator cavity 16；
7th inductance diaphragm 8 and the 8th inductance diaphragm 9 constitute window type hatch frame, for controlling described the
Stiffness of coupling between three resonator cavitys 16 and the 4th resonator cavity 17；
9th inductance diaphragm 10 and the tenth inductance diaphragm 11 constitute window type hatch frame, described for controlling
The radiation quality factor of filter antenna radiation port.
Fig. 4 is the perspective view of waveguide pyramid loudspeaker filter antenna proposed by the present invention, and the structure chart is symmetrical
's.
Rectangular waveguide model WR90 that the specific embodiment of the invention is used, the filter antenna mid frequency of design is
10GHz.Using three-dimensional artificial software CST, simulation and optimization is carried out to filter antenna, the main structure parameters after optimization are：A=
22.86mm, b=10.16mm, l0=15mm, l1=16.74mm, l2=18.48mm, l3=18.46mm, l4=16.71mm, w0
=10.83mm, w1=6.78mm, w2=6.29mm, w3=6.81mm, w4=10.85mm, t=2mm, la=78.81mm, lb=
38mm, h=37.47mm.
Fig. 5 shows | S11 | of embodiment filter antenna and gain simulation result.Transverse axis represents frequency input signal, model
Enclose from 9GHz to 11GHz, the left longitudinal axis represents S11 log-magnitude (dB), the right longitudinal axis represents gain size (dB).Antenna 17.5dB
Reflection loss scope is 9.88GHz to 10.12GHz, and relative bandwidth is about 2.4%.Gain in the range of operating frequency of antenna is
14.5dB or so.As seen from the figure, antenna has the advantages that flat gain, high selectivity, high out-of-side rejection.
Fig. 6 and Fig. 7 are the H face at embodiment filter antenna mid frequency 10GHz and E face Direction Pattern Simulation result respectively,
H face and the cross polarization of E face as seen from the figure is respectively less than the main polarization minor level in -50dB, E face and is more than 16dB, antenna have Sidelobe,
The radiation characteristic of low-cross polarization.
In sum, the present invention proposes a kind of pyramid loudspeaker filter antenna based on waveguiding structure, and its median filter leads to
Cross rectangular waveguide cavity resonator to realize, coupled by inductance diaphragm between resonators at different levels, afterbody resonator is same
When serve as the function of antenna radiator.In order to improve Antenna gain pattern further, in the afterbody level of afterbody resonator
Pyramid loudspeaker is joined.Filter antenna proposed by the present invention has that minor level is little, and cross polarization is low, and flat gain and frequency are selected
The high feature of property.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment
Limit, other any spirit without departing from the present invention and the change that is made under principle, modification, replacement, combine, simplify,
Equivalent substitute mode is all should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of pyramid loudspeaker filter antenna based on waveguiding structure, it is characterised in that the filter antenna includes：Metal waveguide
Chamber (1) and pyramid loudspeaker (12)；
Wherein, one end described metal wave guide cavity (1) is used as signal input port (13), the other end as radiation port with described
Pyramid loudspeaker (12) connects；
Metal wave guide cavity (1) is successively by the first inductance diaphragm (2) and the second inductance diaphragm (3), the 3rd inductance diaphragm (4)
And the 4th inductance diaphragm (5), the 5th inductance diaphragm (6) and the 6th inductance diaphragm (7), the 7th inductance diaphragm (8) and
Eight inductance diaphragms (9), the 9th inductance diaphragm (10) and the tenth inductance diaphragm (11) are divided into the first resonator cavity (14), second humorous
Shake chamber (15), the 3rd resonator cavity (16) and the 4th resonator cavity (17).
2. a kind of pyramid loudspeaker filter antenna based on waveguiding structure according to claim 1, it is characterised in that
Described metal wave guide cavity (1) is rectangle.
3. a kind of pyramid loudspeaker filter antenna based on waveguiding structure according to claim 1, it is characterised in that
Pyramid loudspeaker (12) while open along E face and H face, for improving radiation gain and the directionality of filter antenna, drop
Low-sidelobe level.
4. a kind of pyramid loudspeaker filter antenna based on waveguiding structure according to claim 1, it is characterised in that
First resonator cavity (14), second resonator cavity (15), the 3rd resonator cavity (16) and the 4th resonator cavity
(17) RSPUDTcell of half-wavelength is, and work main mould is TE101 mould.
5. a kind of pyramid loudspeaker filter antenna based on waveguiding structure according to claim 1, it is characterised in that
First inductance diaphragm (2) and second inductance diaphragm (3) constitute window type hatch frame, for controlling the filter
The external sort factor of wave antenna signal input port.
6. a kind of pyramid loudspeaker filter antenna based on waveguiding structure according to claim 1, it is characterised in that
3rd inductance diaphragm (4) and the 4th inductance diaphragm (5) constitute window type hatch frame, for controlling described the
Stiffness of coupling between one resonator cavity (14) and second resonator cavity (15).
7. a kind of pyramid loudspeaker filter antenna based on waveguiding structure according to claim 1, it is characterised in that
5th inductance diaphragm (6) and the 6th inductance diaphragm (7) constitute window type hatch frame, for controlling described the
Stiffness of coupling between two resonator cavitys (15) and the 3rd resonator cavity (16).
8. a kind of pyramid loudspeaker filter antenna based on waveguiding structure according to claim 1, it is characterised in that
7th inductance diaphragm (8) and the 8th inductance diaphragm (9) constitute window type hatch frame, for controlling described the
Stiffness of coupling between three resonator cavitys (16) and the 4th resonator cavity (17).
9. a kind of pyramid loudspeaker filter antenna based on waveguiding structure according to claim 1, it is characterised in that
9th inductance diaphragm (10) and the tenth inductance diaphragm (11) constitute window type hatch frame, described for controlling
The radiation quality factor of filter antenna radiation port.
10., according to a kind of arbitrary described pyramid loudspeaker filter antenna based on waveguiding structure of claim 1 to 9, its feature exists
In,
4th resonator cavity (17) functions simultaneously as the effect of irradiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610998517.3A CN106450749A (en) | 2016-11-14 | 2016-11-14 | Pyramid horn filtering antenna based on waveguide structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610998517.3A CN106450749A (en) | 2016-11-14 | 2016-11-14 | Pyramid horn filtering antenna based on waveguide structure |
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| CN106450749A true CN106450749A (en) | 2017-02-22 |
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| CN201610998517.3A Pending CN106450749A (en) | 2016-11-14 | 2016-11-14 | Pyramid horn filtering antenna based on waveguide structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713412A (en) * | 2018-12-20 | 2019-05-03 | 常州机电职业技术学院 | A kind of tunable face the E cutting face H waveguide bandpass filter and its design method |
| CN109755704A (en) * | 2019-01-09 | 2019-05-14 | 内蒙古大学 | The bimodulus rectangular waveguide filter and its multi-stage filter part of low structure depth-to-width ratio |
| CN110336101A (en) * | 2019-06-28 | 2019-10-15 | 电子科技大学 | A kind of Wide stop bands inductance diaphragm, capacitive window interlock loading waveguide bandpass filter |
| CN110571526A (en) * | 2019-09-27 | 2019-12-13 | 华南理工大学 | Duplex horn antenna based on E-plane split waveguide |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237806A (en) * | 1998-05-29 | 1999-12-08 | 汤姆森多媒体公司 | Device for transmission/reception of signals |
| CN206225549U (en) * | 2016-11-14 | 2017-06-06 | 华南理工大学 | A kind of pyramid loudspeaker filter antenna based on waveguiding structure |
-
2016
- 2016-11-14 CN CN201610998517.3A patent/CN106450749A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237806A (en) * | 1998-05-29 | 1999-12-08 | 汤姆森多媒体公司 | Device for transmission/reception of signals |
| CN206225549U (en) * | 2016-11-14 | 2017-06-06 | 华南理工大学 | A kind of pyramid loudspeaker filter antenna based on waveguiding structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713412A (en) * | 2018-12-20 | 2019-05-03 | 常州机电职业技术学院 | A kind of tunable face the E cutting face H waveguide bandpass filter and its design method |
| CN109713412B (en) * | 2018-12-20 | 2024-03-29 | 常州机电职业技术学院 | Tunable E-plane cutting H-plane waveguide band-pass filter and design method thereof |
| CN109755704A (en) * | 2019-01-09 | 2019-05-14 | 内蒙古大学 | The bimodulus rectangular waveguide filter and its multi-stage filter part of low structure depth-to-width ratio |
| CN110336101A (en) * | 2019-06-28 | 2019-10-15 | 电子科技大学 | A kind of Wide stop bands inductance diaphragm, capacitive window interlock loading waveguide bandpass filter |
| CN110571526A (en) * | 2019-09-27 | 2019-12-13 | 华南理工大学 | Duplex horn antenna based on E-plane split waveguide |
| CN110571526B (en) * | 2019-09-27 | 2024-03-22 | 华南理工大学 | Duplex horn antenna based on E-plane split waveguide |
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Application publication date: 20170222 |