CN203950926U - A kind of micro-strip paster antenna - Google Patents
A kind of micro-strip paster antenna Download PDFInfo
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- CN203950926U CN203950926U CN201420373808.XU CN201420373808U CN203950926U CN 203950926 U CN203950926 U CN 203950926U CN 201420373808 U CN201420373808 U CN 201420373808U CN 203950926 U CN203950926 U CN 203950926U
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- strip paster
- paster antenna
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Abstract
The utility model discloses a kind of micro-strip paster antenna, belong to frequency microwave technical field.Metal patch antenna, metal ground plane that this micro-strip paster antenna comprises substrate and is attached to respectively substrate two sides, on the surface that is attached with metal patch antenna of substrate, be also attached with the left-handed materials resonant layer around described metal patch antenna, described left-handed materials resonant layer consists of the two opening resonant elements of dicyclo of one group of cycle coupling, the two opening resonant elements of dicyclo comprise two concentric open metal rings, on two open metal rings, be provided with two openings that size is identical, position is relative, and stagger mutually in the position of two split ring upper sheds.Further, on described metal ground plane, be provided with one group of equally distributed manhole.The utility model builds respectively left-handed materials resonant layer, photon band gap by the two sides at micro-strip paster antenna, can effectively eliminate the surface that paster antenna produces and involve high order harmonic component, promotes gain and the radiation directivity of signal.
Description
Technical field
The utility model relates to a kind of antenna, relates in particular to a kind of micro-strip paster antenna, belongs to frequency microwave technical field.
Background technology
Micro-strip paster antenna is generally applied and the low profile structure of frequency higher than 100MHZ, a conventional class microstrip antenna is on a thin-medium base, one side is enclosed thin metal layer as ground plate, another side is made the metal patch of definite shape by methods such as photoetching corrosions, utilize microstrip line and axis probe to paster feed, this has just formed microstrip antenna.Long is L, widely for the rectangular microstrip antenna unit of W can regard general low-resistance transmission line as, connects two radiating slots compositions.L is half microstrip wavelength while being λ g/2, forms two gaps at low-resistance transmission line two ends, forms binary seam battle array, outwards an emittance.Its paster can adopt photoetching process manufacture, makes it cost low, is easy to a large amount of production.This common microstrip antenna gain is lower, and directivity is poor.
Utility model content
Technical problem to be solved in the utility model is to overcome prior art deficiency, and a kind of micro-strip paster antenna is provided, and has significantly reduced surface wave impact, has improved gain and the radiation directivity of signal.
The utility model solves the problems of the technologies described above by the following technical solutions:
A micro-strip paster antenna, the metal patch antenna, the metal that comprise substrate and be attached to respectively described substrate two sides
Ground plane is also attached with the left-handed materials resonant layer around described metal patch antenna on the surface that is attached with metal patch antenna of described substrate.
Preferably, described left-handed materials resonant layer consists of the two opening resonant elements of dicyclo of one group of cycle coupling, the two opening resonant elements of described dicyclo comprise two concentric open metal rings, on two open metal rings, be provided with two openings that size is identical, position is relative, and stagger mutually in the position of two split ring upper sheds.
Preferably, the quantity of the two opening resonant elements of described dicyclo is 40.
Preferably, described open metal ring is shaped as rectangle.
Preferably, described left-handed materials resonant layer is symmetrical about the central shaft of metal patch antenna.
In order more effectively to eliminate the impact of surface wave and high order harmonic component, as further improvement of the utility model scheme, on described metal ground plane, be provided with one group of equally distributed manhole.
Preferably, described manhole is uniformly distributed in the position under described metal patch antenna.
Preferably, described manhole is symmetrical about the central shaft of metal patch antenna.
Preferably, the distance between any two adjacent circular through holes equals 1/4th of this micro-strip paster antenna institute receiving and transmitting signal wavelength.
Compared to existing technology, the utility model and of the present utility model preferably, improvement project has following beneficial effect:
The utility model around arranges left-handed materials resonant layer by the paster antenna at micro-strip paster antenna, takes full advantage of the negative refraction of left-handed materials, can effectively eliminate the surface wave that paster antenna produces the radiation directivity that improves signal;
The utility model proposes a kind of left-handed materials of brand new, the two opening resonant elements of dicyclo by one group of cycle coupling form, compare the left-handed materials that existing single radial cut resonator builds, there is better frequency adaptability, can better work in microwave frequency band, and be not only to work in very high frequency band;
The utility model further utilizes photonic band gap structure to strengthen the inhibition of surface wave and high order harmonic component, has further improved the performance of micro-strip paster antenna;
The utility model compact conformation, is convenient to processing, realizes cost lower.
Accompanying drawing explanation
Fig. 1 is the vertical view of micro-strip paster antenna described in embodiment;
Fig. 2 is the enlarged drawing of the two opening resonant elements of dicyclo;
Fig. 3 is the upward view of micro-strip paster antenna described in embodiment;
Fig. 4 is the three-dimensional structure perspective view of micro-strip paster antenna described in embodiment;
Fig. 5 is effective dielectric constant and the magnetic permeability real part simulation result of left-handed materials resonant layer in embodiment;
Fig. 6 is effective dielectric constant and the magnetic permeability imaginary part simulation result of left-handed materials resonant layer in embodiment;
Fig. 7 is the Direction Pattern Simulation result of micro-strip paster antenna described in embodiment;
Fig. 8 is the return loss S11 simulation result of micro-strip paster antenna described in embodiment;
In figure, each label implication is as follows:
1, metal patch antenna, 2, left-handed materials resonant layer, 3, substrate, 4, the two opening resonant elements of dicyclo, 5, metal ground plane, 6, manhole.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is elaborated:
Thinking of the present utility model is that the obverse and reverse at micro-strip paster antenna builds respectively left-handed materials resonant layer, photonic band gap structure, utilize the characteristic of left-handed materials and photonic band gap structure, high order harmonic component is involved on the surface that effectively elimination paster antenna produces, thereby promotes gain and the radiation directivity of signal.
For the ease of public understanding, before technical solutions of the utility model are elaborated, first the substance of left-handed materials and photonic band gap structure is briefly introduced.
Left-handed materials (Left-Handed Material is called for short LHM) refers to that dielectric constant and magnetic permeability are the material of negative value simultaneously.Left-handed materials has the characteristic that is different from the right-handed material existing in nature.Leftward in material, electromagnetic electric field, magnetic field and wave vector form left hand relation.Electromagnetic wave is contrary with right-handed material in material leftward, has negative refraction, negative Qie Liankefu effect, anti-Doppler effect etc.
Photon band gap (Photonic Band-Gap, be called for short PBG) refers in a certain band limits, and ripple can not be propagated in this periodic structure, and this periodic structure exists forbidden band.This concept proposes at first in optical field, and its research range has expanded to microwave harmony wave-wave section now.
The utility model arranges left-handed materials resonant layer around at the paster antenna in micro-strip paster antenna front, utilize left-handed materials to suppress surface wave, and further on metal ground plane overleaf, photonic band gap structure is set, utilize photonic band gap structure to strengthen the inhibition that high order harmonic component is involved on surface.Left-handed materials resonant layer of the present utility model and photonic band gap structure all can adopt existing various left-handed materials structure and photonic band gap structure.For the ease of public understanding technical solutions of the utility model, lift a preferred embodiment below and describe.
Micro-strip paster antenna in the present embodiment and the basic structure of existing micro-strip paster antenna are similar, the dielectric substrate in the middle of including, and the metal patch antenna, the metal ground plane that are mounted on respectively substrate positive and negative.Its difference is, the front of the micro-strip paster antenna of the present embodiment is provided with left-handed materials resonant layer around metal patch antenna, on the metal ground plane at the back side, is provided with photonic band gap structure.
Fig. 1 has shown the vertical view of the present embodiment micro-strip paster antenna, as shown in the figure, metal patch antenna 1 is mounted on substrate 3(and adopts Rogers 5880 dielectric-slabs, and dielectric constant is 2.2, thickness is 0.8 millimeter) middle part, in the surrounding of metal patch antenna 1, be surrounded with left-handed materials resonant layer 2.Left-handed materials resonant layer 2 in the present embodiment does not adopt existing complementary single radial cut resonator configurations, but the two opening resonant elements 4 of the dicyclo that utilizes one group of cycle coupling form, the two opening resonant elements 4 of described dicyclo comprise two concentric open metal rings, on two open metal rings, be provided with two openings that size is identical, position is relative, and stagger mutually in the position of two split ring upper sheds.As shown in Figure 2, the shape of two open metal rings is rectangle to the structure of the two opening resonant elements 4 of dicyclo in the present embodiment, and the aperture position of outer shroud and interior ring is all in the middle part of a pair of opposite side.In the present embodiment, the quantity of the two opening resonant elements 4 of dicyclo is 40, and symmetrical about the central shaft of metal patch antenna 1.
Fig. 3 has shown the upward view of the present embodiment micro-strip paster antenna, as shown in the figure, the back side of substrate 3 is attached with layer of metal ground plane 5, on metal ground plane 5, be provided with one group of equally distributed manhole 6, these equally distributed manholes 6 have formed photonic band gap structure, can prepare by etched mode.In order better to suppress surface wave and high order harmonic component, these equally distributed manholes 6 be preferably arranged at metal patch antenna 1 corresponding under position, preferably symmetrical about the central shaft of metal patch antenna 1.Distance in the present embodiment between any two adjacent manholes 6 equals 1/4th of this micro-strip paster antenna institute receiving and transmitting signal wavelength.
Fig. 4 is the three-dimensional structure perspective view of the present embodiment micro-strip paster antenna.
In the micro-strip paster antenna of the present embodiment, the two opening resonant elements 4 of adjacent dicyclo intercouple by air-gap, the two opening resonant element 4 cycle couplings of all dicyclos form left-handed materials resonant layer, with the photonic band gap structure acting in conjunction at the back side, can suppress to greatest extent surface and involve high order harmonic component.
Micro-strip paster antenna in the present embodiment adopts coaxial feeder to carry out feed, and the impedance of this coaxial feeder is 50 ohm, and is positioned on the center longitudinal axis of described micro-strip paster antenna.
When micro-strip paster antenna is worked, the outside emittance of paster antenna, on medium substrate, produce surface wave affects energy to external radiation simultaneously; Due to the special characteristics that left-handed materials resonant layer effective dielectric constant and equivalent magnetic conductance are negative value, the surface wave on dielectric layer has obtained good inhibition.Add the effect of bottom surface PBG layer, the surface waves that produce due to antenna resonance are in a large number suppressed, and emittance outwards radiate substantially from paster antenna, thereby makes the gain of antenna and directivity obtain good raising, antenna performance be improved significantly.
The frequency range of the two opening resonant element work of dicyclo is in microwave range, and application is wider.Fig. 5, Fig. 6 have shown the two effective dielectric constants of opening resonant element of dicyclo of the present utility model and the simulation result of magnetic permeability, and wherein Fig. 5 is real part, and Fig. 6 is imaginary part.As can be seen from the figure, its effective dielectric constant and magnetic permeability reach negative maximum near 6.9GHz, and dielectric constant and magnetic permeability higher than existing single radial cut resonator at the absolute value at this frequency range place.
Fig. 7 has shown directional diagram and the gain of the utility model micro-strip paster antenna, and Fig. 8 has shown the return loss S11 of the utility model micro-strip paster antenna.From Fig. 7 ~ Fig. 8 to find out, the utility model micro-strip paster antenna-10dB bandwidth is 6.75GHz ~ 7.15GHz, centre frequency is 6.9GHz.When energy is inputted from coaxial feeder, return loss is greater than 25dB, and the common microstrip antenna of the ratio of gains of the utility model micro-strip paster antenna increases 3.4dB, and half-power radiation subtended angle dwindles 24
.。
Claims (10)
1. a micro-strip paster antenna, the metal patch antenna, the metal ground plane that comprise substrate and be attached to respectively described substrate two sides, it is characterized in that, on the surface that is attached with metal patch antenna of described substrate, be also attached with the left-handed materials resonant layer around described metal patch antenna.
2. micro-strip paster antenna as claimed in claim 1, it is characterized in that, described left-handed materials resonant layer consists of the two opening resonant elements of dicyclo of one group of cycle coupling, the two opening resonant elements of described dicyclo comprise two concentric open metal rings, on two open metal rings, be provided with two openings that size is identical, position is relative, and stagger mutually in the position of two split ring upper sheds.
3. micro-strip paster antenna as claimed in claim 2, is characterized in that, described open metal ring be shaped as rectangle.
4. micro-strip paster antenna as claimed in claim 2, is characterized in that, the quantity of the two opening resonant elements of described dicyclo is 40.
5. micro-strip paster antenna as claimed in claim 2, is characterized in that, described left-handed materials resonant layer is symmetrical about the central shaft of metal patch antenna.
6. micro-strip paster antenna as described in claim 1～5 any one, is characterized in that, is provided with one group of equally distributed manhole on described metal ground plane.
7. micro-strip paster antenna as claimed in claim 6, is characterized in that, described manhole is uniformly distributed in the position under described metal patch antenna.
8. micro-strip paster antenna as claimed in claim 7, is characterized in that, described manhole is about metal patch antenna
Central shaft is symmetrical.
9. micro-strip paster antenna as claimed in claim 6, is characterized in that, the distance between any two adjacent circular through holes equals 1/4th of this micro-strip paster antenna institute receiving and transmitting signal wavelength.
10. micro-strip paster antenna as claimed in claim 6, is characterized in that, also comprises for the coaxial feeder to metal patch antenna feed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373808.XU CN203950926U (en) | 2014-07-07 | 2014-07-07 | A kind of micro-strip paster antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373808.XU CN203950926U (en) | 2014-07-07 | 2014-07-07 | A kind of micro-strip paster antenna |
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| CN203950926U true CN203950926U (en) | 2014-11-19 |
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| CN201420373808.XU Expired - Fee Related CN203950926U (en) | 2014-07-07 | 2014-07-07 | A kind of micro-strip paster antenna |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078773A (en) * | 2014-07-07 | 2014-10-01 | 南京邮电大学 | Microstrip patch antenna |
| CN105140655A (en) * | 2015-07-31 | 2015-12-09 | 中国科学院国家空间科学中心 | Phase delay linetype reflector element based reflective array antenna |
| CN110061358A (en) * | 2019-01-02 | 2019-07-26 | 云南大学 | The back-shaped left-handed material unit of two-band circle |
| CN110190390A (en) * | 2019-06-13 | 2019-08-30 | 湖北汽车工业学院 | K-band Meta Materials microstrip antenna and design method based on Redundancy Design |
-
2014
- 2014-07-07 CN CN201420373808.XU patent/CN203950926U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078773A (en) * | 2014-07-07 | 2014-10-01 | 南京邮电大学 | Microstrip patch antenna |
| CN105140655A (en) * | 2015-07-31 | 2015-12-09 | 中国科学院国家空间科学中心 | Phase delay linetype reflector element based reflective array antenna |
| CN105140655B (en) * | 2015-07-31 | 2018-03-23 | 中国科学院国家空间科学中心 | A kind of reflective array antenna based on phase delay line style reflector element |
| CN110061358A (en) * | 2019-01-02 | 2019-07-26 | 云南大学 | The back-shaped left-handed material unit of two-band circle |
| CN110061358B (en) * | 2019-01-02 | 2023-12-15 | 云南大学 | Double-frequency band round-shaped left-handed material unit |
| CN110190390A (en) * | 2019-06-13 | 2019-08-30 | 湖北汽车工业学院 | K-band Meta Materials microstrip antenna and design method based on Redundancy Design |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Nanyou IOT Technology Park Ltd. Assignor: Nanjing Post & Telecommunication Univ. Contract record no.: 2016320000210 Denomination of utility model: Microstrip patch antenna Granted publication date: 20141119 License type: Common License Record date: 20161114 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jiangsu Nanyou IOT Technology Park Ltd. Assignor: Nanjing Post & Telecommunication Univ. Contract record no.: 2016320000210 Date of cancellation: 20180116 |
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| EC01 | Cancellation of recordation of patent licensing contract | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20200707 |
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| CF01 | Termination of patent right due to non-payment of annual fee |