CN204947080U - A kind of directional diagram reconstructable aerial based on one pole subring - Google Patents
A kind of directional diagram reconstructable aerial based on one pole subring Download PDFInfo
- Publication number
- CN204947080U CN204947080U CN201520647961.1U CN201520647961U CN204947080U CN 204947080 U CN204947080 U CN 204947080U CN 201520647961 U CN201520647961 U CN 201520647961U CN 204947080 U CN204947080 U CN 204947080U
- Authority
- CN
- China
- Prior art keywords
- bonding jumper
- switch
- directional diagram
- metal ring
- rectangular metal
- Prior art date
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model discloses a kind of directional diagram reconstructable aerial based on one pole subring, comprise medium substrate, coplanar wave guide feedback structure and be etched in the metal of medium substrate, the front-side etch of described substrate has rectangular metal ring, coplanar waveguide feeder line and coplanar waveguide floor, the back etched of described substrate has coupling first bonding jumper and parallel the second bonding jumper of the first bonding jumper, first bonding jumper is loaded with switch, by conducting and the disconnection of control switch, the directional diagram reconstructable of antenna can be realized, it is little that this directional diagram reconstructable aerial has volume, lightweight, structure is simple, impedance bandwidth is wider, and the advantage of E face and H face directional diagram reconstructable can be realized simultaneously, be applicable to military-civil radar, radio communication, the fields such as intellectual weapon guidance.
Description
Technical field
The utility model belongs to antenna technical field, particularly a kind of directional diagram reconstructable aerial based on one pole subring.
Background technology
Along with the demand that develop rapidly and the human communication of science and technology grow with each passing day, radio communication is towards the future development such as multi-functional, miniaturized, structure is simple, and reconfigurable antenna arises at the historic moment just under this background.Reconfigurable antenna can solve the electromagnetic compatibility problem of traditional antenna identical platform carrying multiple antennas and causing, and can save system cost, reduces to take volume.Directional diagram reconstructable aerial is a branch in restructural field, has important Research Significance.
Directional diagram is a key property of antenna, in the systems such as military-civil radar, intellectual weapon guidance, radio communication, require that antenna has directional diagram controllability.Directional diagram reconstructable aerial refers to by introducing the CURRENT DISTRIBUTION that mems switch, diode switch or fet switch etc. change antenna in antenna radiator or antenna feed structure etc., under ensuring coverage frequency range and the constant prerequisite of polarization mode, change the sensing of directional diagram.Directional diagram reconstructable aerial can avoid signal disturbing, improves job security and saves system power, having great importance to the development of future wireless system.
Utility model content
In order to overcome the shortcoming of prior art existence with not enough, the utility model provides a kind of directional diagram reconstructable aerial based on one pole subring.
The utility model adopts following technical scheme:
A kind of directional diagram reconstructable aerial based on one pole subring, comprise medium substrate, be etched in the rectangular metal ring in medium substrate front, coplanar waveguide feeder line and coplanar waveguide floor, described coplanar waveguide feeder line is connected with rectangular metal ring, also comprise the metal floor, the first bonding jumper, the second bonding jumper being parallel to the first bonding jumper and the switch be carried on the first bonding jumper that are etched in the medium substrate back side, described first bonding jumper is connected with metal floor;
Described first bonding jumper is rectangle, and described first bonding jumper is specially two, and structure is identical, is positioned at the left and right sides of rectangular metal ring, and symmetrical about rectangular metal ring.
Described second bonding jumper is rectangle, is specially two, parallel with the first bonding jumper, and symmetrical about rectangular metal ring.
Switch is switchplexer, is specially two, is carried in respectively on two the first bonding jumpers.
Outer path length 0.16 λ of rectangular metal ring
0, wide 0.14 λ of external diameter
0, interior path length is 0.1 λ
0, internal diameter is wide is 0.11 λ
0, wherein λ
0it is the wavelength of the free space corresponding to centre frequency 2.4GHZ.
Described second bonding jumper is identical with the width of the first bonding jumper, is 9mm, and the length of described second bonding jumper is 0.22 λ
0, wherein λ
0it is the wavelength of the free space corresponding to centre frequency 2.4GHZ.
The length of described first bonding jumper is divided into two parts, and the top length being positioned at switch is 0.25 λ
0, the length be positioned at bottom switch is 0.05 λ
0, wherein λ
0it is the wavelength of the free space corresponding to centre frequency 2.4GHZ.
Adopt coplanar wave guide feedback mode, the first bonding jumper, near the vertical edges of rectangular metal ring both sides, forms capacitive coupling.
The beneficial effects of the utility model:
(1) main radiator of the present utility model is antenna straight-flanked ring, by the medium substrate back side and rectangular metal ring near two rim etching first bonding jumpers, realize being coupled of the first bonding jumper and rectangular metal ring; Owing to have employed this technical characteristic, the technique effect brought to the utility model is: antenna obtains good impedance matching, and bandwidth reaches 22.89% (2.09GHZ-2.63GHZ);
(2) respectively on the first bonding jumper of medium substrate back etched of the present utility model a switchplexer is loaded, owing to have employed this technical characteristic, the technique effect brought to the utility model is: by conducting and the disconnection of control switch, can realize the directional diagram reconstructable in E face and H face simultaneously;
(3) the utility model adopts the mode that monopole loop antenna combines with coplanar wave guide feedback, and owing to have employed this technical characteristic, the technique effect brought to the utility model is: antenna structure is simple, is easy to make.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is parameter schematic diagram of the present utility model;
Equivalent electric circuit when Fig. 3 is the utility model first switch 7A, second switch 7B closes;
Equivalent electric circuit when Fig. 4 is the utility model first switch 7A, second switch 7B disconnection;
Return loss when Fig. 5 is the utility model first switch 7A disconnection, second switch 7B conducting;
E face directional diagram when Fig. 6 is the utility model first switch 7A disconnection, second switch 7B conducting;
H face directional diagram when Fig. 7 is the utility model first switch 7A disconnection, second switch 7B conducting;
Return loss when Fig. 8 is the utility model first switch 7A conducting, second switch 7B disconnects;
The E face directional diagram that Fig. 9 is the utility model first switch 7A conducting, second switch 7B disconnects;
The H face directional diagram that Figure 10 is the utility model first switch 7A conducting, second switch 7B disconnects.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment
As shown in Figures 1 and 2, a kind of directional diagram reconstructable aerial based on one pole subring, comprise medium substrate 1, be etched in the rectangular metal ring 2 in medium substrate 1 front, coplanar waveguide feeder line 3 and coplanar waveguide floor 4, described coplanar waveguide feeder line 3 is connected with rectangular metal ring 2, be etched in the metal floor 5 at the medium substrate back side, first bonding jumper 6, second bonding jumper 9 and be carried in the switch of the first bonding jumper 6, described first bonding jumper is parallel with the second bonding jumper, second bonding jumper is positioned at the outside of the first bonding jumper, described first bonding jumper is connected with metal floor, also comprise feed port 8.
The medium substrate length Subx that the present embodiment adopts is 100mm, width suby is 90mm, described rectangular metal ring is positioned at the centre position in medium substrate front, described coplanar waveguide floor 4 is positioned at the both sides, front of medium substrate 1, described coplanar waveguide feeder line is positioned at the centre position of coplanar waveguide floor and is connected with rectangular metal ring, and the outer path length L2 of described rectangular metal ring is about 0.16 λ
0, the wide W2 of external diameter is about 0.14 λ
0, interior path length L3 is about 0.1 λ
0, the wide W3 of internal diameter is about 0.11 λ
0.
The length Gndx of described metal floor is about 0.33 λ
0, width G ndy is about 0.19 λ
0.
Coplanar waveguide feeder line 3 length Kl is about 0.41 λ
0, width Kw is 2mm.The coplanar waveguide floor 4 length Gndx1 forming coplanar wave guide feedback is about 0.09 λ
0, Gndy1 width is about 0.16 λ
0.
Described first bonding jumper 6 is specially two, be etched in the back side of medium substrate, and correspondence is positioned at the both sides of rectangular metal ring vertical edges, symmetrical about rectangular metal ring, and distance vertical edges 0.5mm, this spacing has considerable influence to Antenna Impedance Matching.When spacing increases, the first bonding jumper and rectangular metal loop coupling weaken, and impedance matching is deteriorated.
Described switch is radio-frequency (RF) switch, and concrete number is two, is respectively the first switch 7A, second switch 7B, and be carried in respectively on two the first bonding jumpers, the first bonding jumper can be divided into two joints, and a joint is positioned at switch top, and length L1 is about 0.25 λ
0, another joint is positioned at bottom switch, and length L5 is about 0.05 λ
0, the length L4 of described switch is 6mm, and width is identical with the first bonding jumper 6.
Described second bonding jumper 9 is specially two, lays respectively at the outside of two the first bonding jumpers, symmetrical about rectangular metal ring, and described second bonding jumper is identical with the width of the first bonding jumper, is 9mm, and the length of described second bonding jumper is 0.22 λ
0, wherein λ
0it is the wavelength of the free space corresponding to centre frequency 2.4GHZ.
The width of the first bonding jumper is less on antenna impact, and its length has considerable influence to antenna pattern, and the long or too short antenna pattern that all can make departs from and distortion.Rectangular metal ring length and width have certain influence to antenna, and too greatly or too miniature antenna performance all can be deteriorated.In addition, there is considerable influence the position that switch loads on the first bonding jumper 6 to antenna pattern, loads the improper antenna pattern that will cause and departs from.
Be carried in first and second switch on the first bonding jumper 6 in the on-state its switch equivalent circuit as shown in Figure 3, resistance R
fbe 0.6 Ω, its switch equivalent circuit as shown in Figure 4 in the off state, electric capacity C
jfor 8000PF, resistance R
fbe 0.6 Ω, wherein C1 is the encapsulation electric capacity of diode, and L1 is the package inductance of diode.
By the state of control switch, can realize E face and H face directional diagram reconstructable, the utility model comprises two mode of operations:
Concrete pattern one, first switch 7A disconnects, second switch 7B conducting, and Antenna Operation frequency range and E face and H face directional diagram are as shown in Fig. 5,6,7;
Pattern two, the first switch 7A conducting, second switch 7B disconnects, and now Antenna Operation makes frequency range and E face and H face directional diagram as shown in Figure 8,9, 10.
In the utility model accompanying drawing, directional diagram all gets center frequency point 2.4GHZ is example.
The utility model antenna volume is little, lightweight, structure is simple, impedance bandwidth is wider and can realize E face and H face directional diagram reconstructable simultaneously.Coplanar wave guide feedback is coupled in conjunction with bonding jumper and rectangular metal ring, can realize return loss and be greater than 10DB, realize E face, H face directional diagram reconstructable, and antenna average gain is about 4.5dBi at 2.3-2.55GHZ at 2.09-2.63GHZ.Meet miniaturization, structure is simple, impedance bandwidth is wider and the requirement of directional diagram reconstructable, is applicable to the fields such as military-civil radar, radio communication, intellectual weapon guidance.
Above-described embodiment is the utility model preferably execution mode; but execution mode of the present utility model is not limited by the examples; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection range of the present utility model.
Claims (7)
1. the directional diagram reconstructable aerial based on one pole subring, it is characterized in that, comprise medium substrate, be etched in the rectangular metal ring in medium substrate front, coplanar waveguide feeder line and coplanar waveguide floor, described coplanar waveguide feeder line is connected with rectangular metal ring, also comprise the metal floor, the first bonding jumper, the second bonding jumper being parallel to the first bonding jumper and the switch be carried on the first bonding jumper that are etched in the medium substrate back side, described first bonding jumper is connected with metal floor.
2. antenna according to claim 1, is characterized in that, described first bonding jumper is rectangle, and described first bonding jumper is specially two, and structure is identical, is positioned at the left and right sides of rectangular metal ring, and symmetrical about rectangular metal ring.
3. antenna according to claim 1, is characterized in that, described second bonding jumper is rectangle, is specially two, parallel with the first bonding jumper, and symmetrical about rectangular metal ring.
4. antenna according to claim 1, is characterized in that, switch is switchplexer, is specially two, is carried in respectively on two the first bonding jumpers.
5. antenna according to claim 1, is characterized in that, outer path length 0.16 λ of rectangular metal ring
0, wide 0.14 λ of external diameter
0, interior path length is 0.1 λ
0, internal diameter is wide is 0.11 λ
0, wherein λ
0it is the wavelength of the free space corresponding to centre frequency 2.4GHZ.
6. antenna according to claim 1, is characterized in that, described second bonding jumper is identical with the width of the first bonding jumper, is 9mm, and the length of described second bonding jumper is 0.22 λ
0, wherein λ
0it is the wavelength of the free space corresponding to centre frequency 2.4GHZ.
7. antenna according to claim 1, is characterized in that, the length of described first bonding jumper is divided into two parts, and the top length being positioned at switch is 0.25 λ
0, the length be positioned at bottom switch is 0.05 λ
0, wherein λ
0it is the wavelength of the free space corresponding to centre frequency 2.4GHZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647961.1U CN204947080U (en) | 2015-08-25 | 2015-08-25 | A kind of directional diagram reconstructable aerial based on one pole subring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647961.1U CN204947080U (en) | 2015-08-25 | 2015-08-25 | A kind of directional diagram reconstructable aerial based on one pole subring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204947080U true CN204947080U (en) | 2016-01-06 |
Family
ID=55014478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520647961.1U Expired - Fee Related CN204947080U (en) | 2015-08-25 | 2015-08-25 | A kind of directional diagram reconstructable aerial based on one pole subring |
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|---|---|
| CN (1) | CN204947080U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071033A (en) * | 2015-08-25 | 2015-11-18 | 华南理工大学 | Monopole-loop-based pattern-reconfigurable antenna |
| CN109216909A (en) * | 2018-09-18 | 2019-01-15 | 苏州智汇云祥通信系统有限公司 | A kind of frequency reconfigurable sensing paster antenna |
| CN110828984A (en) * | 2019-10-28 | 2020-02-21 | 常州安塔歌电子科技有限公司 | Compact saber antenna with reconfigurable directional diagram |
-
2015
- 2015-08-25 CN CN201520647961.1U patent/CN204947080U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071033A (en) * | 2015-08-25 | 2015-11-18 | 华南理工大学 | Monopole-loop-based pattern-reconfigurable antenna |
| CN109216909A (en) * | 2018-09-18 | 2019-01-15 | 苏州智汇云祥通信系统有限公司 | A kind of frequency reconfigurable sensing paster antenna |
| CN110828984A (en) * | 2019-10-28 | 2020-02-21 | 常州安塔歌电子科技有限公司 | Compact saber antenna with reconfigurable directional diagram |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20180825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |