CN101369685A - Photon crystal patch antenna - Google Patents
Photon crystal patch antenna Download PDFInfo
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- CN101369685A CN101369685A CNA2008101569283A CN200810156928A CN101369685A CN 101369685 A CN101369685 A CN 101369685A CN A2008101569283 A CNA2008101569283 A CN A2008101569283A CN 200810156928 A CN200810156928 A CN 200810156928A CN 101369685 A CN101369685 A CN 101369685A
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Abstract
The invention discloses a photon crystal patch antenna. The patch antenna fixed on the antenna substrate is connected to a microstrip feeder; an incentive source feeds power to the patch antenna via a feeding port through the a microstrip feeder; the circuit holes are transversely and vertically arrayed on the facial surface of the antenna substrate with equal distances; the reverse surface of the antenna substrate is fixed with a rectangular metal frame; the rectangular metal frame is embedded to periphery of the circular hole. The invention adds the photon crystal structure to the substrate medium of the patch antenna to form a photon forbidden strip; in the frequency range of the forbidden strip, the electromagnetic waves are restricted, which can not be disseminated to any direction; the surface wave along the substrate of the medium can be restricted by the forbidden strip effect of the photon crystal; and the absorption of the electromagnetic wave can be reduced for the antenna substrate; the energy in the antenna substrate of the photon crystal is significantly reflected; the reflective energy from the electromagnetic wave to the free space is strengthened; the returning wave consumption of the antenna is effectively reduced and the antenna argument is increased; so that the invention has the applications in the field of mobile communication, satellite communication and avigation and so on.
Description
Technical field
The present invention relates to communication technical field, particularly photon crystal patch antenna.
Background technology
Photonic crystal is meant that refractive index is the structure of periodic distribution in the space, and electromagnetic wave is similar to the kinetic characteristic of electronics in semiconductor crystal in the property class of this crystals transmission, so be called photonic crystal or electromagnetic crystals again.When electromagnetic wave incident electromagnetism (photon) crystal, can forbid electromagnetic wave propagation in a certain frequency range, this frequency range is called the frequency forbidden band.Yablonovitch in 1989 and Gmitte take the lead in having made the photonic crystal with 8000 " atoms " that is made of nine layers of styrene plate, and on the microwave frequency band of 6.5GHz, observed a forbidden band that surpasses 2GHz, this characteristic makes electromagnetism (photon) crystal be applied to microwave circuit, many aspects such as antenna, photon crystal structure is applied to multiple new antenna and is called the photonic crystal antenna, because its volume is little, in light weight, low section, cost is low, easily processing, the bandwidth of effective broadening antenna, improve the directivity of antenna, the advantages such as radiation efficiency that increase substantially antenna make it in mobile communication, the extensive use of various fields such as satellite communication and Aero-Space.But the defective of photonic crystal antenna in application is: the energy shortage in the reflection photonic crystal antenna substrate, return loss is bigger.
Summary of the invention:
The object of the present invention is to provide a kind of photon crystal patch antenna, can reflect the energy in the antenna substrate of photonic crystal significantly, realize littler return loss and higher gain characteristic effectively.
The technical solution used in the present invention is: the paster antenna that is fixed on the antenna substrate connects microstrip feed line, driving source is given the paster antenna feed by feed port through microstrip feed line, the circular hole that equates of arrangement pitches in length and breadth on the antenna substrate front, at the fixing rectangle metal frame of the reverse side of antenna substrate, this rectangular metal frame embeds circular hole periphery.
The present invention compared with prior art has following advantage:
The present invention embeds the circular hole photon crystal structure in the reverse side rectangular metal frame of antenna substrate, also promptly on the hosqt media of paster antenna, added photon crystal structure, just form electromagnetism (photon) forbidden band, electromagnetic wave in the frequency range of forbidden band will be fettered, can not propagate to any direction, utilize the forbidden band effect of photonic crystal, can suppress along the surface wave of substrate floor media propagation, therefore, to reduce antenna substrate to absorption of electromagnetic wave, can reflect the energy in the antenna substrate of photonic crystal significantly, increase the reflected energy of electromagnetic wave to free space, effectively reduced the return loss of antenna, increased antenna gain, made it in mobile communication, its effect of various fields such as satellite communication and Aero-Space performance.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is a substrate photon crystal patch antenna Facad structure schematic diagram of the present invention;
Fig. 2 is a substrate photon crystal patch antenna reverse side structural representation of the present invention;
Fig. 3 is that return loss S11 in the embodiment of the invention 1 is with the frequency change distribution schematic diagram.
Embodiment:
As shown in Figure 1, 2, photon crystal patch antenna is made up of photonic crystal region and paster antenna district, the paster antenna district comprises the paster antenna 3 that is fixed on the antenna substrate 1, and the length of antenna substrate 1 is that 50～360mm, width are that 50～360mm, thickness are 4～10mm.One end of paster antenna 3 connects microstrip feed line 4, and the other end is a feed port 5.Paster antenna 3 and microstrip feed line 4, driving source is given paster antenna 3 feeds by feed port 5 through microstrip feed line 4.Photonic crystal region be on antenna substrate 1 front, arrange in length and breadth and circular hole 2 that spacing equates to form photon crystal structure, circular hole 2 diameters are 16～32mm, two circular hole center of circle spacings are 20～3.In the circular hole 2 is air dielectric, and the relative dielectric constant of antenna substrate 1 medium is 2.2～10.2.At the fixing rectangle metal frame 6 of the reverse side of antenna substrate 1, the length and width degree of rectangular metal frame 6 is 20～80mm, and this rectangular metal frame 6 is embedded circular holes 2 peripheries, forms embedded type circular hole photon crystal structure.
Below in conjunction with 3 embodiment the present invention is described.
Embodiment 1
As Fig. 1,2, with the length of antenna substrate 1 be made as 200mm, width is that 100mm, thickness are 8mm, gets out to arrange in length and breadth and diameter is that the circular hole 2 of 20mm forms photon crystal structures on antenna substrate 1 front, the spacing between circular hole 2 centers of circle is 30mm.Add that at antenna substrate 1 reverse side edge length is 70mm, width is the rectangular metal frame 6 of 20mm, to embed photon crystal structure in this rectangular metal frame 6, the relative dielectric constant of antenna substrate 1 medium is 6 (polytetrafluoroethylmaterial materials), the paster antenna 3 that above dielectric layer, adds 26 * 16mm, it is that the microstrip feed line 4 of 4.7mm is given paster antenna 3 feeds in feed port 5 that driving source is adopted by width, as shown in Figure 3, obtain return loss S11 characteristic, S11 is about-41dB in the minimum echo loss of frequency 3.16GHZ place.
Embodiment 2
As Fig. 1,2, with the length of antenna substrate 1 be made as 300mm, width is that 50mm, thickness are 10mm, gets out to arrange in length and breadth and diameter is that the circular hole 2 of 32mm forms photon crystal structures on antenna substrate 1 front, the spacing between circular hole 2 centers of circle is 40mm.Add that at antenna substrate 1 reverse side edge length is 80mm, width is the rectangular metal frame 6 of 50mm, to embed photon crystal structure in this rectangular metal frame 6, the relative dielectric constant of antenna substrate 1 medium is 10.2 (polytetrafluoroethylmaterial materials), the paster antenna 3 that above dielectric layer, adds 26 * 16mm, it is that the microstrip feed line 4 of 4.7mm is given paster antenna 3 feeds in feed port 5 that driving source is adopted by width, as shown in Figure 3, obtain return loss S11 characteristic, S11 is about-41dB in the minimum echo loss of frequency 3.16GHZ place.
Embodiment 3
As Fig. 1,2, with the length of antenna substrate 1 be made as 52mm, width is that 50mm, thickness are 4mm, gets out to arrange in length and breadth and diameter is that the circular hole 2 of 16mm forms photon crystal structures on antenna substrate 1 front, the spacing between circular hole 2 centers of circle is 20mm.Add that at antenna substrate 1 reverse side edge length is 30mm, width is the rectangular metal frame 6 of 26mm, to embed photon crystal structure in this rectangular metal frame 6, the relative dielectric constant of antenna substrate 1 medium is 2.2 (polytetrafluoroethylmaterial materials), the paster antenna 3 that above dielectric layer, adds 26 * 16mm, it is that the microstrip feed line 4 of 4.7mm is given paster antenna 3 feeds in feed port 5 that driving source is adopted by width, as shown in Figure 3, obtain return loss S11 characteristic, S11 is about-41dB in the minimum echo loss of frequency 3.16GHZ place.
Claims (4)
1. photon crystal patch antenna, the paster antenna (3) that is fixed on the antenna substrate (1) connects microstrip feed line (4), driving source is given paster antenna (3) feed by feed port (5) through microstrip feed line (4), it is characterized in that: the circular hole (2) that equates of arrangement pitches in length and breadth on antenna substrate (1) front, at the fixing rectangle metal frame (6) of the reverse side of antenna substrate (1), this rectangular metal frame (6) embeds circular hole (2) periphery.
2. a kind of photon crystal patch antenna according to claim 1 is characterized in that: be air dielectric in the circular hole (2), the relative dielectric constant of antenna substrate (1) medium is 2.2～10.2; The length of antenna substrate (1) is that 50～360mm, width are that 50～360mm, thickness are 4～10mm.
3. a kind of photon crystal patch antenna according to claim 1 is characterized in that: circular hole (2) diameter is 16～32mm, and two circular hole center of circle spacings are 20～40mm.
4. a kind of photon crystal patch antenna according to claim 1 is characterized in that: the length and width of rectangular metal frame (6) is 10～60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101569283A CN101369685A (en) | 2008-09-12 | 2008-09-12 | Photon crystal patch antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101569283A CN101369685A (en) | 2008-09-12 | 2008-09-12 | Photon crystal patch antenna |
Publications (1)
| Publication Number | Publication Date |
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| CN101369685A true CN101369685A (en) | 2009-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101569283A Pending CN101369685A (en) | 2008-09-12 | 2008-09-12 | Photon crystal patch antenna |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222817A (en) * | 2011-04-17 | 2011-10-19 | 江苏大学 | Patch antenna embedded with heterogeneous photon crystalline structure |
| CN102227039A (en) * | 2011-04-17 | 2011-10-26 | 江苏大学 | Photonic crystal antenna in crossed heterogeneous arrangement |
| CN102280697A (en) * | 2011-04-21 | 2011-12-14 | 浙江大学宁波理工学院 | Double-Z-shaped microstrip antenna |
| CN102480012A (en) * | 2011-04-28 | 2012-05-30 | 深圳光启高等理工研究院 | Metamaterial dielectric substrate and processing method thereof |
| CN101557039B (en) * | 2009-05-15 | 2012-07-04 | 电子科技大学 | Adjustable patch photonic crystal micro-stripe antenna |
| CN103956579A (en) * | 2014-04-29 | 2014-07-30 | 中国人民解放军国防科学技术大学 | Microstrip antenna with phase shifting function |
| WO2015035890A1 (en) * | 2013-09-13 | 2015-03-19 | Byd Company Limited | Method for manufacturing antenna, antenna and mobile terminal |
| CN109449594A (en) * | 2018-10-26 | 2019-03-08 | 钟祥博谦信息科技有限公司 | Microstrip antenna |
| CN110221318A (en) * | 2019-03-18 | 2019-09-10 | 上海微小卫星工程中心 | A kind of satellite antenna and satellite navigation signal enhancement method |
-
2008
- 2008-09-12 CN CNA2008101569283A patent/CN101369685A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101557039B (en) * | 2009-05-15 | 2012-07-04 | 电子科技大学 | Adjustable patch photonic crystal micro-stripe antenna |
| CN102222817A (en) * | 2011-04-17 | 2011-10-19 | 江苏大学 | Patch antenna embedded with heterogeneous photon crystalline structure |
| CN102227039A (en) * | 2011-04-17 | 2011-10-26 | 江苏大学 | Photonic crystal antenna in crossed heterogeneous arrangement |
| CN102280697A (en) * | 2011-04-21 | 2011-12-14 | 浙江大学宁波理工学院 | Double-Z-shaped microstrip antenna |
| CN102480012A (en) * | 2011-04-28 | 2012-05-30 | 深圳光启高等理工研究院 | Metamaterial dielectric substrate and processing method thereof |
| WO2012146037A1 (en) * | 2011-04-28 | 2012-11-01 | 深圳光启高等理工研究院 | Metamaterial dielectric substrate and processing method therefor |
| CN102480012B (en) * | 2011-04-28 | 2013-02-13 | 深圳光启高等理工研究院 | Metamaterial dielectric substrate and processing method thereof |
| WO2015035890A1 (en) * | 2013-09-13 | 2015-03-19 | Byd Company Limited | Method for manufacturing antenna, antenna and mobile terminal |
| CN103956579A (en) * | 2014-04-29 | 2014-07-30 | 中国人民解放军国防科学技术大学 | Microstrip antenna with phase shifting function |
| CN109449594A (en) * | 2018-10-26 | 2019-03-08 | 钟祥博谦信息科技有限公司 | Microstrip antenna |
| CN110221318A (en) * | 2019-03-18 | 2019-09-10 | 上海微小卫星工程中心 | A kind of satellite antenna and satellite navigation signal enhancement method |
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Application publication date: 20090218 |