CN102800964A - Coplanar compact type photonic crystal GPS (Global Positioning System) receiving antenna - Google Patents
Coplanar compact type photonic crystal GPS (Global Positioning System) receiving antenna Download PDFInfo
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- CN102800964A CN102800964A CN2012103029337A CN201210302933A CN102800964A CN 102800964 A CN102800964 A CN 102800964A CN 2012103029337 A CN2012103029337 A CN 2012103029337A CN 201210302933 A CN201210302933 A CN 201210302933A CN 102800964 A CN102800964 A CN 102800964A
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Abstract
The invention discloses a coplanar compact type photonic crystal GPS (Global Positioning System) receiving antenna which comprises a dielectric substrate, a patch antenna is arranged on the front face of the dielectric substrate, an earth plate is arranged on the back face of the dielectric substrate, a feed pin is arranged in the center of the earth plate, photonic crystal structures are periodically distributed on the earth plate, each photonic crystal structure unit comprises a square patch and an inductance wire inserted in the middle, and the adjacent photonic crystal structure units are connected via the inductance wire. In the invention, a coplanar compact type photonic crystal is introduced into the earth plate of the patch antenna, the forbidden effect of photonic crystal is utilized, surface waves propagating along a base plate medium are inhibited, the electromagnetic wave radiation power of the antenna coupled to the space is increased, the inhibition of the surface waves can increase the efficiency of the antenna, and the performance of the antenna is improved.
Description
Technical field
The invention belongs to the photonic crystal applications technical field, be specifically related to a kind of coplane compact photon crystal GPS reception antenna.
Background technology
The photonic crystal notion is put forward in 1987 by Eli Yablonovitch and Sajeev John independently of one another.Photonic crystal is that a kind of dielectric constant space periodicity changes, lattice constant can be compared with optical wavelength and have photonic band gap structure, can control the novel artificial material of photon spread state.The essential characteristic of photonic crystal is to have forbidden photon band, and the electromagnetic wave that frequency drops in the forbidden band is forbidden propagating.Another principal character of photonic crystal is the photon local.If in the periodic structure of photonic crystal, mix impurity or introduce certain defective, the photon that matches with the defect state frequency so will be by local at defective locations.Photonic crystal is introduced point defect and is formed microcavity, and the lead-in defective forms fiber waveguide, and the lead-in surface defective forms complete minute surface.With the peculiar property of photonic crystal, emerge in large numbers in succession based on new function devices such as the fiber waveguide of photonic crystal, filter, microcavity, reflectors.
Paster antenna is a kind of new antenna form that occurs nineteen seventies; Be meant on a thin-medium substrate;-face is enclosed thin metal layer as ground plate; Another side is made the metal patch of definite shape with methods such as photoetching corrosions, and utilizes coaxial probe or the microstrip line a kind of antenna to the paster feed.Paster antenna is because simple in structure, and volume is little, and is in light weight; Low section; The electrical property variation can be conformal with carrier, and ability and active device, circuit are integrated into unified assembly; Being fit to plurality of advantages such as large-scale production makes it accept field such as antenna in communication, radar and global positioning system (GPS, Global Positioning System) to use very extensive.But it is defectiveness also; Such as because the structure of paster antenna can the support matrix ground roll, thereby and in the paster antenna existence of surface wave energy is bound near the dielectric layer and can not radiate the efficient that has reduced antenna, on the other hand in the medium truncated position; Radiation and diffraction can take place in electromagnetic wave; Influencing the directional diagram of antenna, mainly is to cause that back lobe increases and the secondary lobe fluctuating strengthens, and makes antenna be vulnerable to electronic jamming and deception.From the influence of surface wave, higher mode, feeder loss and dielectric loss, paster antenna exists deficiencies such as efficient is low, bandwidth is narrower, gain is lower.These shortcomings have influenced the application of paster antenna to a certain extent, therefore, are badly in need of making improvements, and make it obtain better application.The improvement that appears as micro-strip paster antenna of coplane compact photon crystal (UC-PBG:Unipalar Compact Photonic Bandgap) provides brand-new means.The UC-PBG structural design is compact, lattice structure all with the paster coplane, the surface wave of microstrip antenna is had the good restraining effect; Its metal structure need not link to each other with brill metal aperture between the ground; But connect branch road and realize that with the two-dimentional LC network that the capacitive slit forms parallel connection to electromagnetic inhibition, this structure not only cost is low through lattice being processed into perception, processing is simply; And the forbidden band is wide, is more suitable for the MMIC manufacturing technology of standard compatible.Therefore, the application study of coplane compact photon crystal structure on paster antenna receives publicity day by day.
Summary of the invention
The improvement that the present invention provides a kind of coplane compact structure photonic crystal that the GPS paster antenna is carried out.
Technical scheme of the present invention: a kind of coplane compact photon crystal GPS reception antenna; Comprise medium substrate, the medium substrate front is provided with paster antenna, and the medium substrate back side is provided with ground plate; The ground plate center is provided with feed pin, and the photon crystal structure of periodic distribution is set on the ground plate.
Said each photon crystal structure unit is made up of foursquare paster and the middle inductance line that inserts, and adjacent photon crystal structure unit connects through the inductance line.
Said medium substrate is a ceramic medium material.
Technique effect of the present invention: the present invention forms the metal covering that two-dimensional and periodic distributes through etching or silk screen printing process on conventional ceramic medium GPS reception antenna; Each periodic unit of photonic crystal pattern wherein is made up of little paster of square and the middle filament that inserts; Gap between the adjacent cells provides coupling capacitance; Thin narrow branch line then provides inductance, realizes the inhibition to specific electromagnetic wave through the two-dimentional LC network of parallel connection, reaches the result who improves performance; The present invention is through introducing coplane compact photon crystal at the paster antenna ground plate; Utilize the forbidden band effect of photonic crystal, suppress, increase the electromagenetic wave radiation power of antenna coupling to the space along the surface wave of floor media propagation.Can improve the efficient of antenna to the inhibition of surface wave, thereby improve the performance of antenna.
Description of drawings
Fig. 1 is a Facad structure sketch map of the present invention;
Fig. 2 is a side structure sketch map of the present invention;
Fig. 3 is a structure sketch map of the present invention.
Embodiment
Below in conjunction with accompanying drawing invention is described further, but is not limited to embodiment.
Like Fig. 1, Fig. 2, shown in Figure 3; A kind of coplane compact photon crystal GPS reception antenna; Comprise medium substrate 1, medium substrate 1 front is provided with paster antenna 2, and medium substrate 1 back side is provided with ground plate; The ground plate center is provided with feed pin 4, and the photon crystal structure of periodic distribution is set on the ground plate.
The photon crystal structure unit of each is made up of foursquare paster 3 and the middle inductance line 5 that inserts, and adjacent photon crystal structure unit connects through inductance line 5.
On conventional ceramic medium GPS reception antenna, form the photon crystal structure unit that two-dimensional and periodic distributes through etching or silk screen printing process; Gap between the adjacent cells provides coupling capacitance; Thin narrow inductance line 5 then provides inductance; Two-dimentional LC network through parallel connection is realized the inhibition to specific electromagnetic wave, reaches the result who improves performance.
Claims (3)
1. coplane compact photon crystal GPS reception antenna; Comprise medium substrate (1); Medium substrate (1) front is provided with paster antenna (2); Medium substrate (1) back side is provided with ground plate, and the ground plate center is provided with feed pin (4), it is characterized in that: the photon crystal structure that periodic distribution is set on the ground plate.
2. coplane compact photon crystal GPS reception antenna according to claim 1; It is characterized in that: said each photon crystal structure unit is made up of foursquare paster (3) and the middle inductance line (5) that inserts, and adjacent photon crystal structure unit connects through inductance line (5).
3. coplane compact photon crystal GPS reception antenna according to claim 1, it is characterized in that: said medium substrate (1) is a ceramic medium material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103029337A CN102800964A (en) | 2012-08-23 | 2012-08-23 | Coplanar compact type photonic crystal GPS (Global Positioning System) receiving antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103029337A CN102800964A (en) | 2012-08-23 | 2012-08-23 | Coplanar compact type photonic crystal GPS (Global Positioning System) receiving antenna |
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| CN102800964A true CN102800964A (en) | 2012-11-28 |
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| CN2012103029337A Pending CN102800964A (en) | 2012-08-23 | 2012-08-23 | Coplanar compact type photonic crystal GPS (Global Positioning System) receiving antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772740A (en) * | 2016-12-02 | 2017-05-31 | 兰州大学 | A kind of photonic crystal filters and its application for thermo-optical cell |
| CN107181056A (en) * | 2017-05-16 | 2017-09-19 | 叶云裳 | A kind of microwave attenuation type high stable phase, high-precision GNSS measurement type antenna and equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1387282A (en) * | 2001-05-21 | 2002-12-25 | 三齐微电股份有限公司 | Miniaturized, electrically conductive and dual-surface 3D periodic structure for high impedance and slow wave |
| US20070090398A1 (en) * | 2005-10-21 | 2007-04-26 | Mckinzie William E Iii | Systems and methods for electromagnetic noise suppression using hybrid electromagnetic bandgap structures |
-
2012
- 2012-08-23 CN CN2012103029337A patent/CN102800964A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1387282A (en) * | 2001-05-21 | 2002-12-25 | 三齐微电股份有限公司 | Miniaturized, electrically conductive and dual-surface 3D periodic structure for high impedance and slow wave |
| US20070090398A1 (en) * | 2005-10-21 | 2007-04-26 | Mckinzie William E Iii | Systems and methods for electromagnetic noise suppression using hybrid electromagnetic bandgap structures |
| US20100180437A1 (en) * | 2005-10-21 | 2010-07-22 | Mckinzie Iii William E | Systems and methods for electromagnetic noise suppression using hybrid electromagnetic bandgap structures |
Non-Patent Citations (1)
| Title |
|---|
| 陈蓓峰: "微波光子晶体结构在GPS天线中的应用", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772740A (en) * | 2016-12-02 | 2017-05-31 | 兰州大学 | A kind of photonic crystal filters and its application for thermo-optical cell |
| CN107181056A (en) * | 2017-05-16 | 2017-09-19 | 叶云裳 | A kind of microwave attenuation type high stable phase, high-precision GNSS measurement type antenna and equipment |
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Application publication date: 20121128 |