CN206040962U - Automatically controlled frequency reconfigurable ultra -wideband antenna - Google Patents
Automatically controlled frequency reconfigurable ultra -wideband antenna Download PDFInfo
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- CN206040962U CN206040962U CN201621020491.7U CN201621020491U CN206040962U CN 206040962 U CN206040962 U CN 206040962U CN 201621020491 U CN201621020491 U CN 201621020491U CN 206040962 U CN206040962 U CN 206040962U
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- wideband antenna
- medium substrate
- controlled frequency
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Abstract
The utility model discloses an automatically controlled frequency reconfigurable ultra -wideband antenna, including medium base plate, radiation paster, microstrip feeder, ultra wide band multimode resonator, ground connection direct current feeder panel, PIN pipe, narrowband syntonizer, ground plate and coaxial cable, the medium base plate includes relative first surface and second surface, radiation paster, microstrip feeder, ultra wide band multimode resonator, ground connection direct current feeder panel, PIN pipe and narrowband syntonizer all paste the first surface of locating the medium base plate, and the second surface of medium base plate is located in the ground plate subsides, coaxial cable includes outer conductor and inner conductor, and inner conductor and microstrip feeder link to each other, and outer conductor and ground plate link to each other. Multimode resonator through controlling the break -make that PIN managed, can realize the switching between antenna ultra wide band mode and the narrowband mode for the antenna provides good stop band inhibitory action, and freely adjusting of antenna narrowband frequency can be realized to the narrowband syntonizer to and frequency restructural characteristic multi -functional, miniaturized and the ultra wide band.
Description
Technical field
The utility model is related to antenna technical field, in particular it relates to a kind of reconfigurable ultra-wideband antenna of electronically controlled frequency.
Background technology
With the development of modern wireless technology, important component part of the antenna as wireless communication system, multi-functional, volume
Little, ultra broadband has become the important directions of antenna research.Wherein, restructural ultra-wideband antenna is a big study hotspot, is realized
The reconfigurable method of electronically controlled frequency mainly has：One is the method using mechanical movable, realizes the frequency reconfigurable characteristic of antenna,
But the process employs mechanical system, pattern switching accuracy it cannot be guaranteed that, antenna volume is larger；Two are managed by using PIN
The mutual switching of two frequency bins is realized with multiple radiation branch, but the method only possesses the function of switching on single frequency,
Do not possess ultra broadband characteristic characteristic is selected with electronically controlled frequency frequency；Three is, by N number of radiating element and N-1 electronic switch, to come
The ultra-wideband antenna characteristic of frequency reconfigurable is realized, but the method is more using electronic switch number, make complex, antenna
Volume is also larger.Therefore, design one kind and can realize freely regulated restructural ultra-wideband antenna tool between ultra broadband and arrowband
It is significant.
Utility model content
The purpose of this utility model be to provide one kind can realize it is freely regulated reconfigurable between ultra broadband and arrowband
Ultra-wideband antenna.
To achieve these goals, the utility model provides a kind of electronically controlled frequency reconfigurable ultra-wideband antenna, including：It is situated between
Matter substrate, including relative first surface and second surface；Radiation patch, is attached at the first surface of the medium substrate；It is micro-
Ribbon feeder, is attached at the first surface of the medium substrate；Ultra broadband multimode resonator, is attached at the first of the medium substrate
Surface, one end are connected to the radiation patch by the first interdigital coupled structure, and the other end is connected by the second interdigital coupled structure
It is connected to the microstrip feed line；Ground connection DC feedback plate, is attached at the first surface of the medium substrate, interdigital positioned at described second
Between middle microstrip line and the microstrip feed line in coupled structure；PIN is managed, and is attached at the first surface of the medium substrate,
Between middle microstrip line and the ground connection DC feedback plate in the described second interdigital coupled structure；Narrow band resonances device, patch
Located at the first surface of the medium substrate；Earth plate, is attached at the second surface of the medium substrate；Coaxial cable, including
Outer conductor and inner wire, inner wire are connected with the microstrip feed line, and outer conductor is connected with the earth plate.
Alternatively, the ultra broadband multimode resonator includes annular paster and rectangular patch, one end of the rectangular patch
It is connected with the annular paster, the other end is interdigital with the middle microstrip line in the first interdigital coupled structure and second respectively to couple knot
Middle microstrip line in structure is vertically connected.
Alternatively, the junction of the middle microstrip line in the rectangular patch and the first interdigital coupled structure is provided with
3rd inductance.
Alternatively, the radiation patch includes first kind ellipse paster and Equations of The Second Kind ellipse paster, and the first kind is oval
Class slotted eye is offered on paster, and Equations of The Second Kind ellipse paster is located in the class slotted eye.
Alternatively, the earth plate is formed as the class rectangle plate that lateral edges are convex shaped arc, the top of the convex shaped arc
End offers rectangular channel.
Alternatively, the narrow band resonances device includes HVDC feeder panel, varactor and ground connection DC feedback plate,
It is connected by the first inductance and the first microstrip line between the HVDC feeder panel and varactor, the ground connection direct current
It is connected by the second inductance and the second microstrip line between feeder panel and varactor.
Alternatively, first microstrip line and second microstrip line are formed as right-angle folding line style.
Alternatively, the medium substrate is Rogers4350B, and its relative dielectric constant is 3.48, and loss tangent angle is
0.0037, substrate thickness H=1.524mm.
By above-mentioned technical proposal, multimode resonator provides good stopband inhibitory action for antenna, by controlling PIN
The break-make of pipe, can realize the switching between antenna ultra broadband mode of operation and narrowband operation pattern, and narrow band resonances device can be real
Freely adjusting for existing antenna narrow band frequency, have effectively achieved the frequency reconfigurable of the multi-functional of antenna, miniaturization and ultra broadband
Characteristic.
Other feature and advantage of the present utility model will be described in detail in subsequent specific embodiment part.
Description of the drawings
Accompanying drawing is further understood to of the present utility model for providing, and constitutes a part for specification, and following
Specific embodiment be used for together explaining the utility model, but do not constitute to restriction of the present utility model.In the accompanying drawings：
Fig. 1 is the reconfigurable ultra-wideband antenna overall structure diagram of electronically controlled frequency that the utility model is provided；
Fig. 2 is the top view of the reconfigurable ultra-wideband antenna of electronically controlled frequency that the utility model is provided；
Fig. 3 is the reconfigurable ultra-wideband antenna of electronically controlled frequency that the utility model is provided, under ultra broadband mode of operation
Transmission of electromagnetic energy path profile；
Fig. 4 be the utility model provide the reconfigurable ultra-wideband antenna of electronically controlled frequency, the electricity under narrowband operation pattern
Magnetic energy transmission path figure；
Fig. 5 is the rearview of the reconfigurable ultra-wideband antenna of electronically controlled frequency that the utility model is provided；
Fig. 6 is the side view of the reconfigurable ultra-wideband antenna of electronically controlled frequency that the utility model is provided；
Fig. 7 be the utility model provide the reconfigurable ultra-wideband antenna of electronically controlled frequency, S under ultra broadband mode of operation11Ginseng
The curve map that number changes with frequency；
Fig. 8 be the utility model provide the reconfigurable ultra-wideband antenna of electronically controlled frequency, transfiguration two under narrowband operation pattern
S in the case of pole pipe difference capacitance11The curve map that parameter changes with frequency.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described specific embodiment is merely to illustrate and explains the utility model, is not limited to the utility model.
As shown in figure 1, the utility model provides a kind of electronically controlled frequency reconfigurable ultra-wideband antenna, including medium substrate 0,
Radiation patch, microstrip feed line 4, ultra broadband multimode resonator, ground connection DC feedback plate 7, PIN pipes 12, narrow band resonances device, earth plate
17 and coaxial cable.Wherein, medium substrate 0 includes relative first surface and second surface；Radiation patch, microstrip feed line 4,
Ultra broadband multimode resonator, ground connection DC feedback plate 7, PIN pipes 12 and narrow band resonances device are attached at the first of medium substrate 0
Surface；One end of ultra broadband multimode resonator is connected to radiation patch by the first interdigital coupled structure, and the other end passes through second
Interdigital coupled structure is connected to microstrip feed line 4；Ground connection DC feedback plate 7 is located at the middle microstrip line in the second interdigital coupled structure
Between 32 and microstrip feed line 4；PIN pipes 12 are located at the middle microstrip line 32 in the second interdigital coupled structure and ground connection DC feedback plate
Between 7；Earth plate 17, is attached at the second surface of medium substrate 0；Coaxial cable, including outer conductor and inner wire, inner wire and
Microstrip feed line 4 is connected, and outer conductor is connected with earth plate 17.
By above-mentioned technical proposal, multimode resonator provides good stopband inhibitory action for antenna, by controlling PIN
The break-make of pipe, can realize the regulation between antenna ultra broadband mode of operation and narrowband operation pattern, and narrow band resonances device can be real
Freely adjusting for existing antenna narrow band frequency, have effectively achieved the frequency reconfigurable of the multi-functional of antenna, miniaturization and ultra broadband
Characteristic.
Wherein, in the embodiment that the utility model is provided, as depicted in figs. 1 and 2, ultra broadband multimode resonator includes
Annular paster 1 and rectangular patch 2, one end of rectangular patch 2 are connected with annular paster 1, and the other end is interdigital with first respectively to be coupled
Middle microstrip line 31 in structure is connected with the middle microstrip line 32 in the second interdigital coupled structure, and rectangular patch 2 is with
Between microstrip feed line 31 and 32 it is vertical, the junction of the middle microstrip line 31 in rectangular patch 2 and the first interdigital coupled structure sets
It is equipped with the 3rd inductance 11.Ultra broadband multimode resonator provides good stopband inhibitory action for antenna, and specifically, antenna is super
Under broadband work pattern, antenna is used as by the inner wire of 50 Ω coaxial cables as shown in figure 3, first in the path of electromagnetic energy
Feed port, PIN pipes 12 are located at middle the microstrip line 32 in the second interdigital coupled structure and are grounded between DC feedback plate 7,
When PIN pipes 12 are closed, ultra broadband multimode resonator is in running order, and the antenna can be operated in
The ultra-wide band model of UWB3.1GHz～10.6GHz frequency ranges, in this ultra wide band range, the antenna has stable directional diagram
And gain can be realized, can be used as transmitting antenna and reception antenna；When PIN pipes 12 are in open mode, ultra broadband multimode is humorous
The device that shakes is in ground state, and the mode of operation of antenna is determined by narrow band resonances device.
Further, in the embodiment that the utility model is provided, as shown in Figure 1 and Figure 4, narrow band resonances device includes height
Straightening current feed plate 13, varactor 8 and ground connection DC feedback plate 14, HVDC feeder panel 13 and varactor 8
Between be connected with the first microstrip line 15 by the first inductance 10, pass through between ground connection DC feedback plate 14 and varactor 8
Second inductance 10 is connected with the second microstrip line 15, and the first microstrip line 15 and the second microstrip line 15 are formed as right-angle folding line style, profit
Change the capacitance of varactor 8 with the size of the DC feedback voltage of varactor 8, exist such that it is able to adjust antenna
Operating frequency under narrow band mode.
Wherein, in the microstrip feed line 31 in the middle of the first interdigital coupled structure of the utility model, the second interdigital coupled structure
Between microstrip feed line 32 and multimode resonator provide good stopband rejection ability, multimode resonator and bilateral for antenna
One interdigital coupled structure and the second interdigital coupled structure can be considered wave filter ultra broadband path sections.By interdigital coupled structure coupling
Close radiation patch rear end, specifically, radiation patch include the first kind ellipse paster 5 and Equations of The Second Kind ellipse paster 6, first
Class slotted eye is offered on class ellipse patch 5, and Equations of The Second Kind ellipse paster 6 is located in class slotted eye, oval in the first kind
Paster 5 is internally embedded Equations of The Second Kind ellipse patch 6, suppresses the secondary of first kind ellipse patch 5 with the basic mode of Equations of The Second Kind ellipse patch 6
Mould, can realize the directional diagram Stability Design under the ultra-wide carrier state of reconfigurable antenna, so as to improve the high frequency of ultra-wideband antenna
Radiation characteristic.
Specifically, in the embodiment that the utility model is provided, as shown in Figure 2 and Figure 4, medium substrate 0 is
Rogers4350B (Rogers 4350B), its relative dielectric constant are 3.48, and loss tangent angle is 0.0037, substrate thickness H=
1.524mm, it is low mainly due to the loss angle of the medium substrate using this material, for radiation efficiency has certain guarantee；Connect
Floor 17 is formed as the class rectangle plate that lateral edges are convex shaped arc, and the semi-major axis of circular arc is 0.5*W, and semi-minor axis is GL1+GL2-
GL3, in order to preferably match, the top of convex shaped arc offers rectangular channel 16, length GL1=3.5mm of rectangular channel 16～
4.5mm, width G W1=5mm～6mm；Specifically, above-mentioned first kind ellipse patch 5 and Equations of The Second Kind ellipse patch 6 are had by two
There is identical semi-major axis and the different half elliptic of eccentricity is spliced, the semi-major axis R3=8mm of first kind ellipse patch 5～
9mm, two semielliptical semi-minor axis length of its composition are respectively 7mm～8mm and 8mm～9mm, and Equations of The Second Kind ellipse patch 6 is embedded in
The inside of first kind ellipse patch 5, both do not contact, and the semi-major axis R4=3mm～4mm of class slotted eye, semi-minor axis are respectively
3.3mm～4.5mm and 2.5mm～3.5mm, the semi-major axis R5=2mm～3mm of Equations of The Second Kind ellipse patch 6, semi-minor axis are respectively
Center of circle spacing L10=0.1mm of 3.5mm～4.5mm and 2mm～3mm, class slotted eye and Equations of The Second Kind ellipse patch 6～
0.2mm；The outer shroud radius R1=5mm～6mm of annular paster 1, inner ring radius R2=1mm～2mm, outer ring center are interdigital to first
In the middle of coupled structure in the middle of microstrip line 31 and the second interdigital coupled structure 32 connection end of microstrip line apart from W3=7mm～9mm, ring
Shape paster 1 is 0.1mm～0.3mm with the rectangular microstrip linear slit gap perpendicular to microstrip line in the middle of interdigital structure；Varactor 8
Length is 0.5mm～1.5mm, and its width is 0.1mm～0.5mm, and 8 both sides of varactor are directly connected with microstrip line, first
Microstrip line 15 and interdigitated coupled structure coupling unit length are 1mm～3mm, and coupling position connects electricity apart from DC feedback plate 7
Sense length L7=2.5mm～4.5mm.DC feedback plate 7 is grown and width is L3=0.5mm～1.5mm；Ground hole 9 it is a diameter of
R6=0.1mm～0.5mm；Length L2=of microstrip feed line in the middle of above-mentioned first interdigital coupled structure and the second interdigital coupled structure
7mm～8mm, width are W5=0.3mm～0.5mm；Micro-strip feedback in the middle of first interdigital coupled structure and the second interdigital coupled structure
Length L2=7mm～the 8mm of upper and lower two microstrip feed line of line, L7=7mm～8mm, width are W6=0.2mm～0.5mm.Electricity
Sense leaf length is 0.5mm～1.5mm, and inductive piece width is 0.3mm～0.5mm, and 12 length of PIN pipes is 0.5mm～1.5mm, wide
Spend for 0.3mm～0.5mm.
In order to obtain the ultra-wideband antenna of multi-functional, miniaturization, frequency reconfigurable, need to be to super designed by the utility model
In broad-band antenna, the size of each component is constantly adjusted, and as shown in table 1, is the optimal dimension combination of each component, and according to table
In size carry out simulation analysis using high-frequency electromagnetic simulation software HFSS13.0, obtain antenna S after simulation optimization11
Parameter is analyzed：Under ultra broadband mode of operation, as shown in fig. 6,10dB is with a width of 3.009GHz～10.781GHz, completely
3.1GHz to the 10.6GHz of UWB is covered, i.e., matching is good in whole UWB working bands, and in 10.9GHz-14GHz frequency ranges,
S11Less than -3dB, suppress with good stopband；Under narrowband operation pattern, as shown in fig. 7, by the inclined of varactor 8
Put voltage, it is possible to achieve effective regulation of the antenna in narrowband operation MODE of operation frequency；Additionally, the ultra-wideband antenna due to
It is Integrated design, therefore there is the advantages such as miniaturization, compact conformation, easily fabricated and debugging, meanwhile, profile is simply attractive in appearance.
1. each parameter optimum size table of table
Note：L represents the length of medium substrate 0；W represents the width of medium substrate 0, and R1, R2 represent ultra broadband multimode respectively
Resonator annular 1 inside and outside circle radius length of paster, R3, R4, R5 represent the semimajor axis length of each class elliptic radiation paster respectively,
R6 represents 9 diameter of ground hole, and L1 represents distance of the class elliptic radiation paster center of circle apart from feed port, and L2 represents that interdigital structure is stretched
Go out the length of part, L3 represents the length of HVDC feeder panel 13, and L4 represents varactor 8 with interdigital structure supply side
Band coupling length, L5 represent 8 length of varactor, and L6 represents the band of varactor 8 and interdigital structure radiation fin side
Coupling length, L7 represent the length of microstrip feed line in the middle of interdigital structure, and L8 represents the multimode resonator rectangle of vertical interdigital structure
2 width of band, L9 represent radiation patch rectangular configuration length, and L10 is represented between the center of circle of class elliptical aperture and Equations of The Second Kind ellipse patch 6
Away from；W1 represents radiation patch rectangular configuration width, and distance of the W2 ground holes 9 apart from interdigital coupled structure, W3 represent annular paster 1
The center of circle to substrate lower limb distance；W4 represents the width of 8 microstrip line 15 of varactor, during W5 represents interdigital coupled structure
Between microstrip line width, W6 represents the width of upper and lower microstrip line in interdigital coupled structure；H represents the thickness of medium substrate 0；H generations
Table covers the thickness of copper, i.e., various microstrip lines, the thickness of microband paste.
Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, but, the utility model is not limited
Detail in above-mentioned embodiment, in range of the technology design of the present utility model, can be to skill of the present utility model
Art scheme carries out various simple variants, and these simple variants belong to protection domain of the present utility model.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the utility model is to each
Plant possible combination no longer separately to illustrate.
Additionally, can also be combined between a variety of embodiments of the present utility model, as long as which is not disobeyed
Thought of the present utility model is carried on the back, which should equally be considered as content disclosed in the utility model.
Claims (8)
1. the reconfigurable ultra-wideband antenna of a kind of electronically controlled frequency, it is characterised in that include：
Medium substrate, including relative first surface and second surface；
Radiation patch, is attached at the first surface of the medium substrate；
Microstrip feed line, is attached at the first surface of the medium substrate；
Ultra broadband multimode resonator, is attached at the first surface of the medium substrate, and one end is connected by the first interdigital coupled structure
The radiation patch is connected to, the other end is connected to the microstrip feed line by the second interdigital coupled structure；
Ground connection DC feedback plate, is attached at the first surface of the medium substrate, in the described second interdigital coupled structure
Between middle microstrip line and the microstrip feed line；
PIN is managed, and is attached at the first surface of the medium substrate, the middle microstrip line in the described second interdigital coupled structure
And the ground connection DC feedback plate between；
Narrow band resonances device, is attached at the first surface of the medium substrate；
Earth plate, is attached at the second surface of the medium substrate；
Coaxial cable, including outer conductor and inner wire, the inner wire is connected with the microstrip feed line, the outer conductor and described
Earth plate is connected.
2. the reconfigurable ultra-wideband antenna of electronically controlled frequency according to claim 1, it is characterised in that the ultra broadband multimode
Resonator includes annular paster and rectangular patch, and one end of the rectangular patch is connected with the annular paster, other end difference
It is vertically connected with the middle microstrip line in the middle microstrip line in the first interdigital coupled structure and the second interdigital coupled structure.
3. the reconfigurable ultra-wideband antenna of electronically controlled frequency according to claim 2, it is characterised in that the rectangular patch with
The junction of the middle microstrip line in the first interdigital coupled structure is provided with the 3rd inductance.
4. the reconfigurable ultra-wideband antenna of electronically controlled frequency according to claim 1, it is characterised in that the radiation patch bag
First kind ellipse paster and Equations of The Second Kind ellipse paster is included, class slotted eye, Equations of The Second Kind on first kind ellipse patch, is offered
Oval paster is located in the class slotted eye.
5. the reconfigurable ultra-wideband antenna of electronically controlled frequency according to claim 1, it is characterised in that the earth plate is formed
For the class rectangle plate that lateral edges are convex shaped arc, the top of the convex shaped arc offers rectangular channel.
6. the reconfigurable ultra-wideband antenna of electronically controlled frequency according to claim 1, it is characterised in that the narrow band resonances device
Including HVDC feeder panel, varactor and ground connection DC feedback plate, two pole of the HVDC feeder panel and transfiguration
It is connected by the first inductance and the first microstrip line between pipe, by the between the ground connection DC feedback plate and varactor
Two inductance and the second microstrip line are connected.
7. the reconfigurable ultra-wideband antenna of electronically controlled frequency according to claim 6, it is characterised in that first microstrip line
Be formed as right-angle folding line style with second microstrip line.
8. the reconfigurable ultra-wideband antenna of electronically controlled frequency according to claim 1, it is characterised in that the medium substrate is
Rogers4350B, its relative dielectric constant are 3.48, and loss tangent angle is 0.0037, substrate thickness H=1.524mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621020491.7U CN206040962U (en) | 2016-08-31 | 2016-08-31 | Automatically controlled frequency reconfigurable ultra -wideband antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621020491.7U CN206040962U (en) | 2016-08-31 | 2016-08-31 | Automatically controlled frequency reconfigurable ultra -wideband antenna |
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| CN201621020491.7U Expired - Fee Related CN206040962U (en) | 2016-08-31 | 2016-08-31 | Automatically controlled frequency reconfigurable ultra -wideband antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299649A (en) * | 2016-08-31 | 2017-01-04 | 重庆大学 | The reconfigurable ultra-wideband antenna of electronically controlled frequency |
| CN107623185A (en) * | 2017-09-30 | 2018-01-23 | 重庆三峡学院 | A kind of the frequency reconstructable microstrip aerial of rectangular ring five and communication device |
| CN107658550A (en) * | 2017-09-30 | 2018-02-02 | 重庆三峡学院 | A kind of the frequency reconstructable microstrip aerial of elliptical annular four and communication device |
-
2016
- 2016-08-31 CN CN201621020491.7U patent/CN206040962U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299649A (en) * | 2016-08-31 | 2017-01-04 | 重庆大学 | The reconfigurable ultra-wideband antenna of electronically controlled frequency |
| CN107623185A (en) * | 2017-09-30 | 2018-01-23 | 重庆三峡学院 | A kind of the frequency reconstructable microstrip aerial of rectangular ring five and communication device |
| CN107658550A (en) * | 2017-09-30 | 2018-02-02 | 重庆三峡学院 | A kind of the frequency reconstructable microstrip aerial of elliptical annular four and communication device |
| CN107658550B (en) * | 2017-09-30 | 2021-02-02 | 重庆三峡学院 | Elliptical annular four-frequency reconfigurable microstrip antenna and communication device |
| CN107623185B (en) * | 2017-09-30 | 2021-02-02 | 重庆三峡学院 | Rectangular annular five-frequency reconfigurable microstrip antenna and communication device |
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