CN206225549U - A kind of pyramid loudspeaker filter antenna based on waveguiding structure - Google Patents
A kind of pyramid loudspeaker filter antenna based on waveguiding structure Download PDFInfo
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- CN206225549U CN206225549U CN201621220666.9U CN201621220666U CN206225549U CN 206225549 U CN206225549 U CN 206225549U CN 201621220666 U CN201621220666 U CN 201621220666U CN 206225549 U CN206225549 U CN 206225549U
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- resonator
- inductance diaphragm
- pyramid loudspeaker
- filter antenna
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Abstract
The utility model discloses a kind of pyramid loudspeaker filter antenna based on waveguiding structure, the filter antenna has filtering characteristic and radiation characteristic simultaneously, wherein filtering characteristic is produced by four rectangular cavities, and radiation characteristic is produced jointly by afterbody resonator and pyramid loudspeaker.By adjusting the width of inductance diaphragm window, the radiation quality factor of the stiffness of coupling, the external sort factor of wave filter and antenna between adjacent resonators can be controlled.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 introducing pyramid loudspeaker, radiation gain and the directionality of antenna can be improved, reduce secondary lobe.The utility model proposes filter antenna there is advantages below：Flat gain；High selectivity；Sidelobe；Low-cross polarization；It is simple and reliable for structure；It is easily integrated；Suitable for plurality of communication systems.
Description
Technical field
The utility model is related to wireless communication technology field, and in particular to a kind of pyramid loudspeaker filtering based on waveguiding structure
Antenna.
Background technology
Antenna and microwave filter are that the systems such as modern microwave trunking traffic, satellite communication, radio communication are essential
Primary Component.The main primary of antenna is to launch and receive electromagnetic signal, and control signal radiation direction.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 part important in circuit 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 device demand
It is general.In conventional typical communication system, antenna and wave filter are typically to be seen as two independent subsystems separately to design
With optimization, due to influencing each other and port Impedance mismatch between device so that antenna and wave filter overall performance after cascade
Deteriorate.In order to eliminate this influence, the two generally needs to increase an extra match circuit to be attached.It is this traditional
Method for designing causes that system becomes complicated, and size and loss can also be increased, and has been difficult to meet Current wireless communication system small-sized
Change and high performance demand.Therefore, antenna and wave filter are carried out integrated, the filter antenna of composition compact conformation, as
Integral module is designed, and can not only reduce the size and weight of system, and on the basis of radiation characteristic is not changed, can be with
Reduce loss, improves gain flatness and frequency selectivity, is improved the overall performance of system.
In the prior art, the patent application of Application No. ' 201310354413.5 ' ' 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, it includes resonator and at least one feed being placed in resonator；It is humorous
Chamber shake with the metallic reflection plate for fixing feed, the metal enclosure frame being erected on reflecting plate, and is enclosed for covering metal
Frame top and it is formed with for metal gate of the feed signal to the through hole of external radiation.Through the above way, the antenna can filter with
It is integrated, while having the characteristics such as the simple, high-gain of feed.
Another number of patent application is ' 201510051241.3 ' in the prior art, and ' high out-of-side rejection cavity is filtered for 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 first rectangular cavity and two the second symmetrically placed rectangular cavities.At two second
Resonator 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.
Utility model content
The purpose of this utility model is to be difficult to be provided simultaneously with filtering characteristic to solve waveguide horns in the prior art
With the defect of low-sidelobe level, there is provided a kind of pyramid loudspeaker filter antenna based on waveguiding structure, make it have simple structure, easily
The advantages of tuning, frequency selectivity high, small minor level and flat gain.
The purpose of this utility model 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 it is described
Pyramid loudspeaker 12 is connected；
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 14, the second resonator 15, the 3rd resonator 16
With the 4th resonator 17.
Further, the metal wave guide cavity 1 is rectangle.
Further, the pyramid loudspeaker 12 opens along E faces and H faces simultaneously, the radiation gain for improving filter antenna
And directionality, reduce minor level.
Further, first resonator 14, second resonator 15, the 3rd resonator 16 and institute the 4th are humorous
The chamber 17 that shakes is the RSPUDTcell of half-wavelength, and work main mould is TE101 moulds.
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 14 and second resonator 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 15 and the 3rd resonator 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 16 and the 4th resonator 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 17 functions simultaneously as the effect of radiator.
The utility model has the following advantages and effect relative to prior art：
The utility model proposes a kind of pyramid loudspeaker filter antenna based on waveguiding structure, it has filtering characteristic simultaneously
And radiation characteristic, wherein filtering characteristic produces by four rectangular cavities, and radiation characteristic is by afterbody resonator and pyramid loudspeaker
Common generation.By adjusting the width of inductance diaphragm window, stiffness of coupling between adjacent resonators, wave filter can be controlled
The radiation quality factor of external sort factor and antenna.When the external sort factor of wave filter is equal with aerial radiation quality factor
When, influencing each other for filter unit and radiating element can be avoided.By introducing pyramid loudspeaker, the radiation that can improve antenna increases
Benefit and directionality, reduce secondary lobe.The utility model proposes filter antenna there is advantages below：Flat gain；High selectivity；It is low
Secondary lobe；Low-cross polarization；It is simple and reliable for structure；It is easily integrated；Suitable for plurality of communication systems.
Brief description of the drawings
Fig. 1 is a kind of structure chart of micro-strip filter antenna of proposition in prior art one；
Fig. 2 is the structure chart of the high out-of-side rejection cavity filter antenna array of proposition in prior art two；
Fig. 3 be the utility model proposes the pyramid loudspeaker filter antenna based on waveguiding structure sectional view；
Fig. 4 be the utility model proposes the pyramid loudspeaker filter antenna based on waveguiding structure dimensional structure diagram；
Fig. 5 be the utility model proposes filter antenna | S11 | and gain simulation result；
Fig. 6 be the utility model proposes filter antenna centre frequency 10GHz at H faces Direction Pattern Simulation result；
Fig. 7 be the utility model proposes filter antenna centre frequency 10GHz at E faces Direction Pattern Simulation result.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
Embodiment
The sectional view of guide filter antenna structure of the present utility model is as shown in figure 3, the structure is symmetrical.Ripple should be based on
The pyramid loudspeaker filter antenna of guide structure includes：Metal wave guide cavity 1 and pyramid loudspeaker 12.
The pyramid loudspeaker 12 opens along E faces and H faces simultaneously, is mainly used in improving radiation gain and the directionality of antenna,
Reduce minor level.
The metal wave guide cavity 1 is rectangle.
Used as signal input port 13, the other end is used as radiation port and the pyramid for one end of the metal wave guide cavity 1
Loudspeaker 12 are connected.
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 14, the second resonator 15, the 3rd resonator 16
With the 4th resonator 17.
First resonator 14, second resonator 15, the 3rd resonator 16 and the 4th resonator 17 of institute are equal
It is the RSPUDTcell of half-wavelength, its work main mould is TE101 moulds.
Wherein, the 4th resonator 17 functions simultaneously as the effect of radiator.
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 14 and second resonator 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 resonators 15 and the 3rd resonator 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 resonators 16 and the 4th resonator 17；
9th inductance diaphragm 10 and the tenth inductance diaphragm 11 constitute window type hatch frame, described for controlling
Filter antenna radiates the radiation quality factor of port.
Fig. 4 be the utility model proposes waveguide pyramid loudspeaker filter antenna dimensional structure diagram, the structure chart is
Symmetrical.
The rectangular waveguide model WR90 that the utility model specific embodiment is used, the filter antenna centre frequency of design is
10GHz.Simulation and optimization is carried out to filter antenna using three-dimensional artificial software CST, 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 | and gain simulation result of embodiment filter antenna.Transverse axis represents frequency input signal, model
Enclose from 9GHz to 11GHz, the left longitudinal axis represents S11 log-magnitudes (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 is in the range of operating frequency of antenna
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 respectively the H faces and E faces Direction Pattern Simulation result at embodiment filter antenna centre frequency 10GHz,
H faces and the cross polarization of E faces as seen from the figure is respectively less than -50dB, and the main polarization minor level in E faces is more than 16dB, antenna have Sidelobe,
The radiation characteristic of low-cross polarization.
In sum, the utility model proposes a kind of pyramid loudspeaker filter antenna based on waveguiding structure, wherein filtering
Device realized by rectangular waveguide cavity resonator, coupled by inductance diaphragm between resonators at different levels, afterbody resonance
Device functions simultaneously as the function of antenna radiator.In order to further improve Antenna gain pattern, in the tail of afterbody resonator
Ministerial level has joined pyramid loudspeaker.The utility model proposes filter antenna have minor level small, cross polarization is low, flat gain and
The characteristics of frequency selectivity is high.
Above-described embodiment is the utility model preferably implementation method, but implementation method of the present utility model is not by above-mentioned
The limitation of embodiment, it is other it is any without departing from the change made under Spirit Essence of the present utility model and principle, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, be included within protection domain of the present utility model.
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 of the metal wave guide cavity (1) is used as signal input port (13), the other end as radiation port with it is described
Pyramid loudspeaker (12) is connected；
The 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 (14), second humorous
Shake chamber (15), the 3rd resonator (16) and the 4th resonator (17).
2. a kind of pyramid loudspeaker filter antenna based on waveguiding structure according to claim 1, it is characterised in that
The 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
The pyramid loudspeaker (12) along E faces and H faces while open, radiation gain and directionality for improving 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 (14), second resonator (15), the 3rd resonator (16) and the 4th resonator
(17) RSPUDTcell of half-wavelength is, work main mould is TE101 moulds.
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 (14) and second resonator (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 resonators (15) and the 3rd resonator (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 resonators (16) and the 4th resonator (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
Filter antenna radiates the radiation quality factor of port.
10., according to a kind of any described pyramid loudspeaker filter antenna based on waveguiding structure of claim 1 to 9, its feature exists
In,
4th resonator (17) functions simultaneously as the effect of radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220666.9U CN206225549U (en) | 2016-11-14 | 2016-11-14 | A kind of pyramid loudspeaker filter antenna based on waveguiding structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220666.9U CN206225549U (en) | 2016-11-14 | 2016-11-14 | A kind of pyramid loudspeaker filter antenna based on waveguiding structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450749A (en) * | 2016-11-14 | 2017-02-22 | 华南理工大学 | Pyramid horn filtering antenna based on waveguide structure |
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2016
- 2016-11-14 CN CN201621220666.9U patent/CN206225549U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450749A (en) * | 2016-11-14 | 2017-02-22 | 华南理工大学 | Pyramid horn filtering antenna based on waveguide structure |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20191114 |