CN205159512U - Four leaves of coplane waveguide feed polarization restructural grass antenna - Google Patents
Four leaves of coplane waveguide feed polarization restructural grass antenna Download PDFInfo
- Publication number
- CN205159512U CN205159512U CN201521009336.0U CN201521009336U CN205159512U CN 205159512 U CN205159512 U CN 205159512U CN 201521009336 U CN201521009336 U CN 201521009336U CN 205159512 U CN205159512 U CN 205159512U
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- paster
- pin diode
- reverse side
- ground structure
- radiating element
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Abstract
The utility model discloses a four leaves of coplane waveguide feed polarization restructural grass antenna, including positive radiating element, reverse side radiating element, medium base plate, first wire, second wire, privates, privates, joint and power supply module, positive radiating element is including radiating subassembly, feed line and ground structure, and the ground structure is the frame type, the radiation subassembly is located the ground structure, including first paster, second paster and first PIN diode, ground structure and first paster and second paster all at the coplanar, connect the probe that links to each other, connects with the ground structure and link to each other with the feed line, reverse side radiating element is crossing with radiation subassembly antarafacial, including third paster, fourth paster and second PIN diode. Adopt two diodes just can realize two kinds of polarization mode of left -hand circular polarization and right hand circular polarization as the switch, can restrain multipath effect's influence, adopt coplane waveguide feed, the radiation subassembly can integrate at coplanar, easy and other radio frequency devices with the ground structure.
Description
Technical field
The utility model relates to a kind of antenna technology, particularly relates to a kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna, belongs to wireless communication field.
Background technology
Antenna is one of most important parts in wireless communication field, and main function is reception, emitting electromagnetic wave.Along with the development of society, the progress of science and technology, reconfigurable antenna is also constantly expanded, and then facilitates the generation of polarization reconfigurable antenna.In polarization diversity communication system, polarization reconfigurable antenna is indispensable a member, and therefore the research for this kind of antenna also become quite meaningful.
Microstrip antenna due to its be easy to integrated with components and parts, the good characteristic such as size is little, low section, be widely used in reconfigurable antenna design.
Utility model content
Main purpose of the present utility model is, overcome deficiency of the prior art, a kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna of new structure is provided, be specially adapted to the communication system applications such as the WLAN WLAN (wireless local area network) needing polarization diversity, technical problem to be solved in the utility model is the problem of the reconstruct of the Research of Antenna Polarization.
In order to achieve the above object, the technical scheme that the utility model adopts is:
A kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna, comprise head-on radiation unit, reverse side radiating element, medium substrate, the first wire, the second wire, privates, privates, joint and power supply module, described head-on radiation unit is etched in medium substrate front, described head-on radiation unit comprises radiation assembly, feed line and ground structure, and described ground structure is frame-type; Described radiation assembly is positioned at ground structure, comprises the first paster, the second paster and the first PIN diode; Described first paster is connected by the first PIN diode with the second paster, the positive pole of described first PIN diode is connected with the first paster, described ground structure and the first paster and the second paster are all in same plane, and described joint is connected with ground structure, the probe of joint is connected with feed line.
Wherein, described reverse side radiating element is etched in medium substrate reverse side, crossing with radiation assembly antarafacial, described reverse side radiating element comprises the 3rd paster, the 4th paster and the second PIN diode, described 3rd paster is connected by the second PIN diode with the 4th paster, and the positive pole of described second PIN diode is connected with the 3rd paster; One end of described first wire is connected with the positive pole of the first PIN diode, one end of described second wire is connected with the negative pole of the first PIN diode, one end of described privates is connected with the negative pole of the second PIN diode, one end of described privates is connected with the positive pole of the second PIN diode, and the described other end of the first wire and the other end of privates are connected to form the first tie point, the described other end of the second wire is connected to form the second tie point with the other end of privates, the first tie point is connected by power supply module with the second tie point.
The utility model is set to further: described radiation assembly and reverse side radiating element are axially symmetric structure, described radiation assembly has front symmetry axis, described front symmetry axis is through the center of radiation assembly, and described first paster, the first PIN diode and the second paster are positioned on the symmetry axis of front; Described reverse side radiating element has reverse side symmetry axis, and described reverse side symmetry axis is through the center of reverse side radiating element, and described 3rd paster, the second PIN diode and the 4th paster are positioned on reverse side symmetry axis; The setting orthogonal with radiation assembly of described reverse side radiating element.
The utility model is set to further: the medial angle of described ground structure is provided with the adjustment lattice framing that axle centered by feed line is symmetric, and each regulates the two ends of lattice framing to be all connected with ground structure.
The utility model is set to further: described adjustment lattice framing be two in the same way distribution opening towards the semicircular arc lattice framing of ground structure medial angle.
The utility model is set to further: described power supply module is dry cell.
The utility model is set to further: described medium substrate is FR4 epoxy resin fiberglass plate.
The utility model is set to further: described first paster, the second paster, the 3rd paster and the 4th paster are bunge bedstraw herb shape structure.
The utility model is set to further: the thickness of described medium substrate is 0.8mm.
The utility model is set to further: described head-on radiation unit and reverse side radiating element all use copper material.
Compared with prior art, the beneficial effect that the utility model has is:
Adopt two diodes just can realize the operating state of left-hand circular polarization and right-handed circular polarization two kinds of polarization modes as switch, the diversity of polarization mode, application can suppress the impact of multipath effect in a wlan, has good engineering background; Adopt coplanar wave guide feedback, radiation assembly with ground structure at same plane, can be easy to integrated with other radio-frequency devices.
Foregoing is only the general introduction of technical solutions of the utility model, and in order to clearer understanding technological means of the present utility model, below in conjunction with accompanying drawing, the utility model will be further described.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the utility model embodiment;
Fig. 2 is the enlarged drawing of local A in Fig. 1;
Fig. 3 is the inverse layer structure schematic diagram of the utility model embodiment;
Fig. 4 is the enlarged drawing of local B in Fig. 3;
Fig. 5 is the side structure schematic diagram of the utility model embodiment;
Fig. 6 is the circuit theory diagrams of the utility model embodiment;
Fig. 7 is the actual measurement S parameter of the utility model embodiment;
Fig. 8 is the actual measurement axial ratio of the utility model embodiment;
Fig. 9 is the actual measurement gain of the utility model embodiment;
Figure 10 is the utility model embodiment at the coplanar polarization of left-hand circular polarization operating state and Cross polarization pattern;
Figure 11 is the utility model embodiment at the coplanar polarization of right-handed circular polarization operating state and Cross polarization pattern.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in Figures 1 to 6, a kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna, comprise head-on radiation unit 1, reverse side radiating element 2, medium substrate 3, first wire 4, second wire 5, privates 6, privates 7, joint 8 and power supply module 9, described power supply module 9 is dry cell, described medium substrate 3 is the FR4 epoxy resin fiberglass plate of thickness 0.8mm, described first paster 13, second paster 14, the 3rd paster 16 and the 4th paster 17 are bunge bedstraw herb shape structure, and described head-on radiation unit 1 and reverse side radiating element 2 all use copper material.
Described head-on radiation unit 1 is etched in medium substrate 3 front, and described head-on radiation unit 1 comprises radiation assembly 10, feed line 11 and ground structure 12, and described ground structure 12 is frame-type; Described radiation assembly 10 is positioned at ground structure 12, comprises the first paster 13, second paster 14 and the first PIN diode 15; Described first paster 13 is connected by the first PIN diode 15 with the second paster 14, the positive pole of described first PIN diode 15 is connected with the first paster 13, described ground structure 12 and the first paster 13 and the second paster 14 are all in same plane, and described joint 8 is connected with ground structure 12, the probe of joint 8 is connected with feed line 11.
Described reverse side radiating element 2 is etched in medium substrate 3 reverse side, crossing with radiation assembly 10 antarafacial, described reverse side radiating element 2 comprises the 3rd paster 20, the 4th paster 21 and the second PIN diode 22, described 3rd paster 20 is connected by the second PIN diode 22 with the 4th paster 21, and the positive pole of described second PIN diode 22 is connected with the 3rd paster 20.
As shown in Figures 1 to 4, described radiation assembly 10 and reverse side radiating element 2 are axially symmetric structure, described radiation assembly 10 has front symmetry axis, described front symmetry axis is through the center of radiation assembly 10, and described first paster 13, first PIN diode 15 and the second paster 14 are positioned on the symmetry axis of front; Described reverse side radiating element 2 has reverse side symmetry axis, and described reverse side symmetry axis is through the center of reverse side radiating element 2, and described 3rd paster 20, second PIN diode 22 and the 4th paster 21 are positioned on reverse side symmetry axis; The setting orthogonal with radiation assembly 10 of described reverse side radiating element 2.
As shown in Figure 6, one end of described first wire 4 is connected with the positive pole of the first PIN diode 15, one end of described second wire 5 is connected with the negative pole of the first PIN diode 15, one end of described privates 6 is connected with the negative pole of the second PIN diode 22, one end of described privates 7 is connected with the positive pole of the second PIN diode 22, the described other end of the first wire 4 and the other end of privates 6 are connected to form the first tie point 40, the described other end of the second wire 5 and the other end of privates 7 are connected to form the second tie point 50, first tie point 40 is connected by power supply module 9 with the second tie point 50.
As shown in Figure 1, the medial angle of described ground structure 12 is provided with the adjustment lattice framing 16 that axle centered by feed line 11 is symmetric, and each regulates the two ends of lattice framing 16 to be all connected with ground structure; Described adjustment lattice framing 16 be two in the same way distribution opening towards the semicircular arc lattice framing of ground structure 12 medial angle.
The size marking of the concrete size composition graphs 1 that the utility model coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna adopts is as shown in table 1, and dimensional units is mm.
| W | 65 | Rs | 11.7 |
| L | 45 | d | 1 |
| H | 0.8 | R1 | 4 |
| g | 0.3 | R2 | 9 |
| Wf | 3 | Ls | 32 |
Table 1
As shown in figures 1 and 3, wherein a, b connect same level, and c, d connect same level.When a, b connect positive voltage, when c, d connect negative voltage, the first PIN diode 15 conducting, and the second PIN diode 22 is closed, antenna realizes left-hand circular polarization; In like manner, when a, b connect negative voltage, when c, d connect positive voltage, the first PIN diode 15 is closed, and the second PIN diode 22 conducting, antenna realizes right-handed circular polarization.
Be illustrated in figure 7 the actual measurement S11 parameter of the present embodiment antenna, be the return wave loss parameter of antenna.As seen from the figure, the following impedance bandwidth of-10dB of this antenna two kinds of polarized states is 2.28GHz-2.58GHz; In this bandwidth, antenna has good impedance matching and radiation characteristic.
Be illustrated in figure 8 the actual measurement axial ratio of the present embodiment antenna, axial ratio weighs the key index of antenna circular polarization performance, and common engineering being thought antenna axial ratio is less than 3dB is circular polarization radiation.As seen from the figure, under this antenna two kinds of polarized states, 3dB axial ratio bandwidth is 2.10-2.55GHz.
Be illustrated in figure 9 the actual measurement gain of the present embodiment antenna.Under two kinds of operating states, gain excursion in impedance bandwidth is 2.34-3.89dBi, and maximum gain appears at 2.37GHz place.
Be coplanar polarization and the Cross polarization pattern of the present embodiment antenna as shown in Figure 10 and Figure 11.Figure 10 is antenna at the coplanar polarization of left-hand circular polarization operating state and Cross polarization pattern, and Figure 11 is antenna at the coplanar polarization of right-handed circular polarization operating state and Cross polarization pattern.Can see that the directional diagram of two kinds of polarized states is symmetric, circular polarization radiation is functional.
Innovative point of the present utility model is, the coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna provided adopts two-sided clover configuration, only use two PIN diode, its break-make is controlled by dry cell, blade conducting or the closedown of antenna upper and lower surface can be made, the just change of energy control antenna polarization mode, thus realize polarization restructural.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. a coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna, it is characterized in that: comprise head-on radiation unit, reverse side radiating element, medium substrate, the first wire, the second wire, privates, privates, joint and power supply module, described head-on radiation unit is etched in medium substrate front, described head-on radiation unit comprises radiation assembly, feed line and ground structure, and described ground structure is frame-type; Described radiation assembly is positioned at ground structure, comprises the first paster, the second paster and the first PIN diode; Described first paster is connected by the first PIN diode with the second paster, the positive pole of described first PIN diode is connected with the first paster, described ground structure and the first paster and the second paster are all in same plane, and described joint is connected with ground structure, the probe of joint is connected with feed line;
Described reverse side radiating element is etched in medium substrate reverse side, crossing with radiation assembly antarafacial, described reverse side radiating element comprises the 3rd paster, the 4th paster and the second PIN diode, described 3rd paster is connected by the second PIN diode with the 4th paster, and the positive pole of described second PIN diode is connected with the 3rd paster;
One end of described first wire is connected with the positive pole of the first PIN diode, one end of described second wire is connected with the negative pole of the first PIN diode, one end of described privates is connected with the negative pole of the second PIN diode, one end of described privates is connected with the positive pole of the second PIN diode, and the described other end of the first wire and the other end of privates are connected to form the first tie point, the described other end of the second wire is connected to form the second tie point with the other end of privates, the first tie point is connected by power supply module with the second tie point.
2. a kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna according to claim 1, it is characterized in that: described radiation assembly and reverse side radiating element are axially symmetric structure, described radiation assembly has front symmetry axis, described front symmetry axis is through the center of radiation assembly, and described first paster, the first PIN diode and the second paster are positioned on the symmetry axis of front;
Described reverse side radiating element has reverse side symmetry axis, and described reverse side symmetry axis is through the center of reverse side radiating element, and described 3rd paster, the second PIN diode and the 4th paster are positioned on reverse side symmetry axis;
The setting orthogonal with radiation assembly of described reverse side radiating element.
3. a kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna according to claim 1, it is characterized in that: the medial angle of described ground structure is provided with the adjustment lattice framing that axle centered by feed line is symmetric, each regulates the two ends of lattice framing to be all connected with ground structure.
4. a kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna according to claim 3, is characterized in that: described adjustment lattice framing be two in the same way distribution opening towards the semicircular arc lattice framing of ground structure medial angle.
5. a kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna according to claim 1, is characterized in that: described power supply module is dry cell.
6. a kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna according to claim 1, is characterized in that: described medium substrate is FR4 epoxy resin fiberglass plate.
7. a kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna according to claim 1, is characterized in that: described first paster, the second paster, the 3rd paster and the 4th paster are bunge bedstraw herb shape structure.
8. a kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna according to claim 1, is characterized in that: the thickness of described medium substrate is 0.8mm.
9. a kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna according to claim 1, is characterized in that: described head-on radiation unit and reverse side radiating element all use copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009336.0U CN205159512U (en) | 2015-12-08 | 2015-12-08 | Four leaves of coplane waveguide feed polarization restructural grass antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009336.0U CN205159512U (en) | 2015-12-08 | 2015-12-08 | Four leaves of coplane waveguide feed polarization restructural grass antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159512U true CN205159512U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521009336.0U Withdrawn - After Issue CN205159512U (en) | 2015-12-08 | 2015-12-08 | Four leaves of coplane waveguide feed polarization restructural grass antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159512U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490021A (en) * | 2015-12-08 | 2016-04-13 | 南京信息工程大学 | Coplanar waveguide-fed polarized reconfigurable clover antenna |
| CN109980347A (en) * | 2019-04-22 | 2019-07-05 | 东华大学 | A kind of monopole microstrip antenna of coplanar wave guide feedback |
-
2015
- 2015-12-08 CN CN201521009336.0U patent/CN205159512U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490021A (en) * | 2015-12-08 | 2016-04-13 | 南京信息工程大学 | Coplanar waveguide-fed polarized reconfigurable clover antenna |
| CN105490021B (en) * | 2015-12-08 | 2018-03-27 | 南京信息工程大学 | A kind of coplanar wave guide feedback polarization restructural bunge bedstraw herb antenna |
| CN109980347A (en) * | 2019-04-22 | 2019-07-05 | 东华大学 | A kind of monopole microstrip antenna of coplanar wave guide feedback |
| CN109980347B (en) * | 2019-04-22 | 2021-01-01 | 东华大学 | Monopole microstrip antenna of coplanar waveguide feed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160413 Effective date of abandoning: 20180327 |
|
| AV01 | Patent right actively abandoned |