CN1866609A - Antenna made of high dielectric microwave composite material - Google Patents
Antenna made of high dielectric microwave composite material Download PDFInfo
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- CN1866609A CN1866609A CNA2005100259657A CN200510025965A CN1866609A CN 1866609 A CN1866609 A CN 1866609A CN A2005100259657 A CNA2005100259657 A CN A2005100259657A CN 200510025965 A CN200510025965 A CN 200510025965A CN 1866609 A CN1866609 A CN 1866609A
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- functional material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/2005—Electromagnetic photonic bandgaps [EPB], or photonic bandgaps [PBG]
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Abstract
The invention discloses a high-dielectric microwave compound function material antenna, which consists of high-dielectric ceramic board and microwave dielectric board, wherein the radiating piece is set on the upper surface of high-dielectric ceramic board, whose circumstance is electromagnetic band-gap structure; the gap is set in the middle part of microwave dielectric board, whose circumstance is metal; the feeder line is extended from middle part of microwave dielectric board lower surface. The structure can inhibit energy consumption due to surface wave transportation, which improves the radiation efficiency and benefit of antenna.
Description
Technical field
The present invention relates to a kind of antenna, particularly a kind of antenna of high dielectric microwave composite functional material.
Background technology
Antenna, as the requisite key components of mobile product, characteristics such as its radiation efficiency, directivity, bandwidth and impedance matching will produce a very large impact communication products.The antenna for base station aspect, smart antenna (Smart Antenna) becomes current research focus because of improving the availability of frequency spectrum greatly, increasing power system capacity and base station range effectively under the situation that frequency spectrum resource crowds day by day.On portable terminals such as mobile phone, telescopic antenna is because of big, the difficult integrated market of will progressively fading out of its size.Replace will be can be built-in resoant antenna and high-permitivity ceramics antenna.Resoant antenna adopts air to make medium usually, and antenna structure mostly is " shape of falling F ", and its major advantage is that bandwidth is big, cost is low.That the high-permitivity ceramics antenna then has is simple in structure, be easy to processing, be suitable for multiband work and be easy to characteristics such as integrated, has very big development potentiality in the 3G mobile communication.Consider in the following 4G communication the multi-antenna technology (MIMO technology) that adopts, but the requirement to the size of antenna and integration will further improve, even thereby built-in air dielectric antenna commonly used at present be subjected to size restrictions also to be difficult in portable terminal to realize multi-antenna technology.
The further miniaturization of antenna; unavoidably will use high dielectric constant materials; but adopt common high dielectric material can cause the reduction of antenna radiation efficiency usually; one of effective way that solves this contradiction is to introduce artificial periodic electromagnetism bandgap structure (EBG) in common high dielectric material, or adopts the high dielectric material height Jie composite functional material synthetic with the low dielectric material with electromagnetic bandgap structure.In this novel composite functional material, because the existence of periodic electromagnetism bandgap structure can not be propagated electromagnetic wave in a certain specific frequency forbidden band, thereby it can be used as good antenna substrate material and suppresses the energy loss that causes because of surface wave, improves the radiation efficiency and the gain of antenna.And the raising of radiation efficiency will make speech quality higher, and increase the useful life of battery of mobile phone, and the conversation and the stand-by time of mobile phone are longer.Meanwhile, because the backward radiation that causes because of surface wave is suppressed, reduced the infringement (brain be good microwave absorbing material) of mobile phone radiation so greatly to human body.In addition, when this novel composite functional material is used for antenna array or multiaerial system, also can reduce the mutual coupling between the antenna element, strengthen the isolation between the antenna element, the overall dimension of antenna is reduced, thereby be convenient in littler volumetric spaces, realize multi-antenna technology, make portable terminal adopt many antenna scheme to become possibility in following 3G/4G communication.
Summary of the invention
The object of the present invention is to provide a kind of antenna of high dielectric microwave composite functional material.
A kind of antenna of high dielectric microwave composite functional material, be followed successively by high-permitivity ceramics plate, microwave-medium plate from top to bottom, described high-permitivity ceramics plate upper surface middle part is provided with radiation card sheet, around the described radiation card sheet is electromagnetic bandgap structure, described microwave-medium plate middle part is provided with the slit, around the described slit is metal ground, and described microwave-medium plate lower surface is provided with the extended feeder line from the middle part.
As a kind of optimal way of the present invention, described antenna medium panel material is that component is Sr
1-xBa
xTiO
3, wherein X equals 0.05～0.95.
As another kind of optimal way of the present invention, described feeder line is perpendicular to described slit.
As another optimal way of the present invention, described electromagnetic forbidden band structure is the planar structure that a plurality of square unit cells are formed, described unit cell is by being arranged at unit cell mutually perpendicular two bending wire in middle part and being formed by four conducting blocks that described conductor separation is opened, described lead and conducting block are interconnected at unit cell middle part, are separated by finedraw between adjacent two unit cells and by described wire interconnection.
As another optimal way of the present invention, described electromagnetic forbidden band structure is the planar structure that a plurality of square unit cells are formed, described unit cell edge is provided with four blank bars that are parallel to the unit cell four edges, described unit cell middle part is provided with the square waveform blank tape of two orthogonal and interconnected one-periods, the two ends of each described blank tape are communicated with the middle part of two described blank bars respectively, and the part of described single cell structure except that blank bar and blank tape is conducting block.
As another optimal way of the present invention, described electromagnetic forbidden band structure is the planar structure that a plurality of square unit cells are formed, described unit cell edge is provided with four buss that are parallel to the unit cell four edges, described unit cell middle part is provided with the square waveform conductive strips of two orthogonal and interconnected one-periods, and the two ends of each described conductive strips are communicated with the middle part of two described buss respectively.
As another optimal way of the present invention, described electromagnetic forbidden band structure is the planar structure that a plurality of regular hexagon unit cells are formed, described unit cell is formed perpendicular to three leads of three groups of parallel opposite side of unit cell with by six conducting blocks that described three conductor separation are opened by being arranged at unit cell middle part, described lead and conducting block are interconnected at unit cell middle part, are separated by finedraw between adjacent two unit cells and by described wire interconnection.
As another optimal way of the present invention, described electromagnetic forbidden band structure is the planar structure that a plurality of regular hexagon unit cells are formed, described unit cell is formed with six buss that are arranged at three groups of parallel opposite side of described unit cell edge perpendicular to three leads of three groups of parallel opposite side of unit cell by being arranged at the unit cell middle part, described three leads are interconnected at the unit cell middle part, the two ends of each described lead link with the middle part of described bus respectively, are separated by finedraw between adjacent two unit cells and by described wire interconnection.
As another optimal way of the present invention, the dielectric constant that described microwave-medium plate is is between 1～20.
As another optimal way of the present invention, described microwave-medium plate is a polytetrafluoroethylene.
The existence of electromagnetic bandgap structure around the radiation card sheet can suppress the energy loss that causes because of surface wave propagation, the radiation efficiency and the gain that improve antenna greatly.Because radiation card sheet and electromagnetic bandgap structure are positioned at same surface, can adopt photoetching or PCB technology once-forming, preparation process is greatly simplified, and makes stability in batches, and repeatability greatly improves.In addition, because technical solution of the present invention has adopted five kinds of undersized electromagnetic bandgap structures, under the measure-alike condition of same frequency and overall geometry, compare with the structure of T.Ihob, size dwindles 30 ~ 60% under the same frequency, available unit cell number increases greatly, and the unit cell number increases, and making electromagnetic forbidden band structural material suppress this characteristic of electromagnetic wave propagation can more effectively bring into play.
Description of drawings
Fig. 1 is the embodiment of the invention one antenna structure view
Fig. 2 is semi-simple born of the same parents' structural representation of Fig. 1 embodiment one electromagnetic bandgap structure
Fig. 3 is embodiment two electromagnetic bandgap structure schematic diagrames
Fig. 4 is embodiment three electromagnetic bandgap structure schematic diagrames
Fig. 5 is embodiment four electromagnetic bandgap structure schematic diagrames
Fig. 6 is embodiment four electromagnetic bandgap structure unit cell schematic diagrames
Fig. 7 is embodiment five electromagnetic bandgap structure schematic diagrames
Fig. 8 is embodiment five electromagnetic bandgap structure unit cell schematic diagrames
Embodiment
Embodiment one
As shown in Figure 1, a kind of antenna of high dielectric microwave composite functional material, be followed successively by high-permitivity ceramics plate 1, microwave-medium plate 2 from top to bottom, described high-permitivity ceramics plate upper surface middle part is provided with radiation card sheet 5, the copper pool that described radiation card sheet 5 can adopt photoetching to get on, around the described radiation card sheet is electromagnetic bandgap structure 4, described microwave-medium plate middle part is provided with slit 6, around the described slit is metal ground 3, the described metal ground 3 general copper materials that adopt, described microwave-medium plate lower surface is provided with the extended feeder line 7 from the middle part.Described feeder line 7 is perpendicular to described slit 6.
Wherein said antenna medium panel material is that component is Sr
1-xBa
xTiO
3, wherein X equals 0.05～0.95.The dielectric constant that described microwave-medium plate is can adopt polytetrafluoroethylene as this microwave-medium plate between 1～20.
Described electromagnetic forbidden band structure is the planar structure that a plurality of square unit cells are formed, described unit cell is by being arranged at unit cell mutually perpendicular two bending wire 22 in middle part and being formed by described lead 22 separated four conducting blocks 21, described lead 22 and conducting block 21 are interconnected at unit cell middle part, are separated by finedraw between adjacent two unit cells and interconnected by described lead 22.By regulating the size of unit cell a, b, w, each physical dimension of s among Fig. 2, realize the forbidden band frequency and the width of regulation and control composite functional material.The forbidden band frequency and the width principle of embodiment two to four regulation and control composite functional materials are identical.Therefore omit associated description, only indicate electromagnetic forbidden band structure.
Embodiment two
As shown in Figure 3, described electromagnetic forbidden band structure is the planar structure that a plurality of square unit cells are formed, described unit cell edge is provided with four blank bars that are parallel to the unit cell four edges, described unit cell middle part is provided with the square waveform blank tape of two orthogonal and interconnected one-periods, the two ends of each described blank tape are communicated with the middle part of two described blank bars respectively, and the part of described single cell structure except that blank bar and blank tape is conducting block.
Embodiment three
As shown in Figure 4, described electromagnetic forbidden band structure is the planar structure that a plurality of square unit cells are formed, described unit cell edge is provided with four buss that are parallel to the unit cell four edges, described unit cell middle part is provided with the square waveform conductive strips of two orthogonal and interconnected one-periods, and the two ends of each described conductive strips are communicated with the middle part of two described buss respectively.
Embodiment four
As Fig. 5, shown in Figure 6, described electromagnetic forbidden band structure is the planar structure that a plurality of regular hexagon unit cells are formed, described unit cell is formed perpendicular to three leads of three groups of parallel opposite side of unit cell with by six conducting blocks that described three conductor separation are opened by being arranged at unit cell middle part, described lead and conducting block are interconnected at unit cell middle part, are separated by finedraw between adjacent two unit cells and by described wire interconnection.
Embodiment five
As Fig. 7, shown in Figure 8, described electromagnetic forbidden band structure is the planar structure that a plurality of regular hexagon unit cells are formed, described unit cell is formed with six buss that are arranged at three groups of parallel opposite side of described unit cell edge perpendicular to three leads of three groups of parallel opposite side of unit cell by being arranged at the unit cell middle part, described three leads are interconnected at the unit cell middle part, the two ends of each described lead link with the middle part of described bus respectively, are separated by finedraw between adjacent two unit cells and by described wire interconnection.
Claims (10)
1, a kind of antenna of high dielectric microwave composite functional material, be followed successively by high-permitivity ceramics plate, microwave-medium plate from top to bottom, it is characterized in that: described high-permitivity ceramics plate upper surface middle part is provided with radiation card sheet, around the described radiation card sheet is electromagnetic bandgap structure, described microwave-medium plate middle part is provided with the slit, around the described slit is metal ground, and described microwave-medium plate lower surface is provided with the extended feeder line from the middle part.
2, the antenna of high dielectric microwave composite functional material according to claim 1 is characterized in that: described antenna medium panel material is that component is Sr
1-xBa
xTiO
3, wherein X equals 0.05～0.95.
3, the antenna of high dielectric microwave composite functional material according to claim 1 and 2 is characterized in that: described feeder line is perpendicular to described slit.
4, the antenna of high dielectric microwave composite functional material according to claim 1 and 2, it is characterized in that: described electromagnetic forbidden band structure is the planar structure that a plurality of square unit cells are formed, described unit cell is by being arranged at unit cell mutually perpendicular two bending wire in middle part and being formed by four conducting blocks that described conductor separation is opened, described lead and conducting block are interconnected at unit cell middle part, are separated by finedraw between adjacent two unit cells and by described wire interconnection.
5, the antenna of high dielectric microwave composite functional material according to claim 1 and 2, it is characterized in that: described electromagnetic forbidden band structure is the planar structure that a plurality of square unit cells are formed, described unit cell edge is provided with four blank bars that are parallel to the unit cell four edges, described unit cell middle part is provided with the square waveform blank tape of two orthogonal and interconnected one-periods, the two ends of each described blank tape are communicated with the middle part of two described blank bars respectively, and the part of described single cell structure except that blank bar and blank tape is conducting block.
6, the antenna of high dielectric microwave composite functional material according to claim 1 and 2, it is characterized in that: described electromagnetic forbidden band structure is the planar structure that a plurality of square unit cells are formed, described unit cell edge is provided with four buss that are parallel to the unit cell four edges, described unit cell middle part is provided with the square waveform conductive strips of two orthogonal and interconnected one-periods, and the two ends of each described conductive strips are communicated with the middle part of two described buss respectively.
7, the antenna of high dielectric microwave composite functional material according to claim 1 and 2, it is characterized in that: described electromagnetic forbidden band structure is the planar structure that a plurality of regular hexagon unit cells are formed, described unit cell is formed perpendicular to three leads of three groups of parallel opposite side of unit cell with by six conducting blocks that described three conductor separation are opened by being arranged at unit cell middle part, described lead and conducting block are interconnected at unit cell middle part, are separated by finedraw between adjacent two unit cells and by described wire interconnection.
8, the antenna of high dielectric microwave composite functional material according to claim 1 and 2, it is characterized in that: described electromagnetic forbidden band structure is the planar structure that a plurality of regular hexagon unit cells are formed, described unit cell is formed with six buss that are arranged at three groups of parallel opposite side of described unit cell edge perpendicular to three leads of three groups of parallel opposite side of unit cell by being arranged at the unit cell middle part, described three leads are interconnected at the unit cell middle part, the two ends of each described lead link with the middle part of described bus respectively, are separated by finedraw between adjacent two unit cells and by described wire interconnection.
9, the antenna of high dielectric microwave composite functional material according to claim 1 and 2 is characterized in that: the dielectric constant of described microwave-medium plate is between 1～20.
10, the antenna of high dielectric microwave composite functional material according to claim 1 and 2 is characterized in that: described microwave-medium plate is a polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100259657A CN100499258C (en) | 2005-05-19 | 2005-05-19 | Antenna made of high dielectric microwave composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100259657A CN100499258C (en) | 2005-05-19 | 2005-05-19 | Antenna made of high dielectric microwave composite material |
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| Publication Number | Publication Date |
|---|---|
| CN1866609A true CN1866609A (en) | 2006-11-22 |
| CN100499258C CN100499258C (en) | 2009-06-10 |
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|---|---|---|---|
| CNB2005100259657A Expired - Fee Related CN100499258C (en) | 2005-05-19 | 2005-05-19 | Antenna made of high dielectric microwave composite material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102316670A (en) * | 2011-07-22 | 2012-01-11 | 西安电子科技大学 | Circuit board having multicycle planar electromagnetic band gap structure |
| CN102354812A (en) * | 2011-08-25 | 2012-02-15 | 西北工业大学 | Micro-strip antenna housing with high gain |
| CN101510630B (en) * | 2009-03-30 | 2012-08-08 | 电子科技大学 | LTCC lamination microstrip patch antenna |
| CN101359775B (en) * | 2008-09-18 | 2012-08-08 | 中国科学院光电技术研究所 | Design method of two-dimensional groove directional microstrip patch antenna |
| CN102820513A (en) * | 2012-08-22 | 2012-12-12 | 北京邮电大学 | High-gain dielectric resonator antenna applied to 60 GHz system |
| WO2014161348A1 (en) * | 2013-08-05 | 2014-10-09 | 中兴通讯股份有限公司 | Multiple input multiple output antenna system and radiation absorption method |
-
2005
- 2005-05-19 CN CNB2005100259657A patent/CN100499258C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359775B (en) * | 2008-09-18 | 2012-08-08 | 中国科学院光电技术研究所 | Design method of two-dimensional groove directional microstrip patch antenna |
| CN101510630B (en) * | 2009-03-30 | 2012-08-08 | 电子科技大学 | LTCC lamination microstrip patch antenna |
| CN102316670A (en) * | 2011-07-22 | 2012-01-11 | 西安电子科技大学 | Circuit board having multicycle planar electromagnetic band gap structure |
| CN102354812A (en) * | 2011-08-25 | 2012-02-15 | 西北工业大学 | Micro-strip antenna housing with high gain |
| CN102354812B (en) * | 2011-08-25 | 2013-10-16 | 西北工业大学 | Micro-strip antenna housing with high gain |
| CN102820513A (en) * | 2012-08-22 | 2012-12-12 | 北京邮电大学 | High-gain dielectric resonator antenna applied to 60 GHz system |
| WO2014161348A1 (en) * | 2013-08-05 | 2014-10-09 | 中兴通讯股份有限公司 | Multiple input multiple output antenna system and radiation absorption method |
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| Publication number | Publication date |
|---|---|
| CN100499258C (en) | 2009-06-10 |
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Granted publication date: 20090610 Termination date: 20140519 |