CN103700949A - Hyperbolic frequency selection surface spectroscope - Google Patents
Hyperbolic frequency selection surface spectroscope Download PDFInfo
- Publication number
- CN103700949A CN103700949A CN201310576423.3A CN201310576423A CN103700949A CN 103700949 A CN103700949 A CN 103700949A CN 201310576423 A CN201310576423 A CN 201310576423A CN 103700949 A CN103700949 A CN 103700949A
- Authority
- CN
- China
- Prior art keywords
- medium substrate
- antenna
- metal patch
- spectroscope
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
The invention belongs to the technical field of antenna reflection and particularly relates to a frequency selection spectroscope. A hyperbolic frequency selection surface spectroscope comprises a medium substrate (1) and metal patches (2) arranged on the upper surface of the medium substrate (1) and is characterized in that the medium substrate (1) is made from a light-transmitting material, has the dielectric constant of 3.78 and is shaped like a hyperboloid of revolution; the metal patches (2) adopt crossed structures, are arranged in positions where the metal patches(2) are parallel to a tangent plane at the central point of the medium substrate (1), and are projected downwards to obtain the positions and shapes of the metal patches (2) on the medium substrate (1). The auxiliary reflecting surface of the hyperbolic frequency selection surface spectroscope is used for a millimeter-wave/infrared composite Cassegrain antenna, and can ensure favorable millimeter-wave band radiation characteristics and passive acceptance of infrared frequency bands at the same time so as to achieve the effect that antennas of two patterns share one antenna aperture to work simultaneously.
Description
Technical field
The invention belongs to antenna-reflected technical field, be specifically related to a kind of frequency and select spectroscope.
Background technology
Complicated and changeable along with modern electromagnetic, the detection mode of single frequency band, owing to being subject to the impact of defect separately, no longer can meet the needs of environment, therefore develops the compound sniffer of multimode imperative.
The current topmost pattern of multi-mode complex probe has millimeter wave/infrared, millimeter wave/laser is compound etc.Antenna technology is one of key technology realizing complex probe, and bore technology is the mechanical structure form for a kind of bore of antenna duplexer of different working modes or different operating frequency range altogether, reduced to a certain extent the complexity of system, reduced antenna simultaneously and take volume in system, therefore bore technology is realize the only selection of complex probe altogether.In conventional common bore technology, frequency-selective surfaces (Frequency Selective Surface, FSS) technology gains great popularity because its manufacture craft is simple, processing cost is low.
Frequency-selective surfaces is the unlimited or limit cycle array structure being formed along two-dimensional directional periodic arrangement by identical unit.At present, the mode classification of frequency-selective surfaces has a lot, according to unit form, is divided into patch-type and aperture type, forms respectively by being printed on metal unit array in medium substrate or the slit-shaped metallic plate of hollow out.For patch-type frequency-selective surfaces, electromagnetic wave in resonance frequency is totally reflected (being with resistive), for aperture type frequency-selective surfaces, electromagnetic wave in resonance frequency is by total transmissivity (the band general character), therefore can utilize band resistance or the band general character matter of frequency-selective surfaces, for spectroscopical design, to realize the electromagnetic wave total reflection to component frequency, the electromagnetic wave total transmissivity of component frequency, reaches the object of beam separation.In practical engineering application, the cycle of FSS structure can only be limited large, and often need to be conformal with the structure of workbench, so the research of the curved surface frequency selective surface of limit cycle has very actual using value.
Summary of the invention
The object of the invention is: a kind of hyperbolic frequency selective surface spectroscope is provided, and the wave beam of realizing millimeter wave/infrared frequency range is separated; It is used for millimeter wave/infrared compound Cassegrain antenna as a kind of subreflector, can guarantee to realize the passive receive of infrared frequency range when millimere-wave band radiation characteristic is good, the object of simultaneously working to realize antenna aperture of antenna duplexer of two kinds of patterns.
Technical scheme of the present invention is: a kind of hyperbolic frequency selective surface spectroscope, and it comprises: medium substrate and the metal patch that is arranged in described medium substrate upper surface,
Medium substrate is selected translucent material, and dielectric constant 3.78, is shaped as the hyperboloid of revolution, and its Hyperbolic Equation is:
Wherein, wherein x, y are the point coordinates on hyperbola, hyperboloid even thickness, and caliber size is 24mm;
Metal patch is decussate texture, its arrangement mode is: centered by a metal patch, cross its central point and do two cross one another 45 ° of dotted lines, four metal patches are arranged on two cross one another 45 ° of dotted lines, and the central point line of described four metal patches forms square, respectively centered by described four metal patches, continuity is arranged in this way, forms metal patch plane again;
The position that described metal patch floor plan is paralleled at the tangent plane with described medium substrate central point, projection downwards, obtains position and the shape of described metal patch in described medium substrate.
The invention has the beneficial effects as follows: (1) selected frequency selecting surface technique is to realize the key technology that two kinds of mode of operations share a bore, not only can make antenna when millimeter wave frequency band meets high-gain, and can effectively realize the passive receive of infrared frequency range;
(2) designed frequency selective surface is hyperbolicity structure, combines telecommunication design and actual process characteristic and considers, has solved actual engineering application problem; Selected cross metal patch unit, due to the symmetry of self structure, all insensitive to two kinds of different polarized wave incidents (TE, TM);
(3) in millimeter wave w frequency range, designed hyperbolic frequency selective surface, has good reflection characteristic, can assemble cassette antenna system with this structure alternative metals subreflector; In millimeter wave w frequency range, adopt Cassegrain antenna system, overcome the feature of the high loss of traditional microstrip antenna, improve the radiance of antenna, thereby strengthened target acquisition ability;
(4) in the accurate field of detecting of miniaturization, there is important practical value, overcome the detection accuracy of traditional single-mode, can increase substantially target detection probability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is metal patch projecting method schematic diagram of the present invention;
Fig. 4 is metal patch arrangement mode schematic diagram of the present invention;
Fig. 5 is the integral assembling structure figure of the present invention and Cassegrain antenna;
Fig. 6 is the index path of the present invention and Cassegrain antenna;
Fig. 7 is that the present invention is to the amplitude of the Reflection Coefficient of Planar Wave of different angles incident and phase place simulation result;
Fig. 8 is the E face Direction Pattern Simulation result of centre frequency of the present invention place Cassegrain antenna;
Fig. 9 is the H face Direction Pattern Simulation result of centre frequency of the present invention place Cassegrain antenna;
Figure 10 is the standing-wave ratio simulation result of centre frequency of the present invention place Cassegrain antenna.
Wherein, 1-medium substrate, 2-metal patch, 3-primary reflection surface, 4-subreflector, 5-pyramidal horn antenna, 6-dielectric rod, 7-metallic support rod, the millimeter wave light path of 8-W frequency range, the infrared frequency range light path of 9-.
Embodiment
Referring to accompanying drawing 1,2, a kind of hyperbolic frequency selective surface spectroscope, it comprises: medium substrate 1 and the metal patch 2 that is arranged in medium substrate 1 upper surface, medium substrate 1 is selected translucent material, thereby can the infrared frequency range of transmission, dielectric constant 3.78, is shaped as the hyperboloid of revolution, and its Hyperbolic Equation is:
Wherein, wherein x, y are the point coordinates on hyperbola, hyperboloid even thickness, and caliber size is 24mm;
Referring to accompanying drawing 4, metal patch 2 is decussate texture, symmetry due to this structure self, incident wave-wave (TE for two kinds of polarization, TM), corresponding identical, there is identical resonance frequency, its arrangement mode is: centered by a metal patch 2, cross its central point and do two cross one another 45 ° of dotted lines, four metal patches 2 are arranged on two cross one another 45 ° of dotted lines, and the central point line of described four metal patches 2 forms square, again respectively centered by described four metal patches 2, continuity is arranged in this way, form metal patch plane,
Referring to accompanying drawing 3, the position that metal patch floor plan is paralleled at the tangent plane with medium substrate 1 central point, along oo ' projection downwards, obtains position and the shape of metal patch 2 in medium substrate 1;
Because the wavelength of resonance frequency is determined by element length, the twice that is about length, therefore in a preferred embodiment, the length l of metal patch 2 is set as to 1.05mm, width w is set as 0.11mm, central point line is that the distance setting P of the adjacent metal paster 2 of 45° angle is 1.3mm, and metal patch 2 edge's corner cut radiuses are 0.05mm.
Referring to accompanying drawing 5, using hyperbolic frequency selective surface spectroscope as subreflector 4, be fixedly mounted on the primary reflection surface 3 of Cassegrain antenna, form bimodulus combined antenna; Mounting means is: the back of subreflector 4 is provided with cylinder shape medium bar 6,3 metallic support rod 7 one end are fixedly connected with cylinder shape medium bar 6, the other end is fixedly connected with the primary reflection surface 3 of Cassegrain antenna, by the primary reflection surface 3 of subreflector 4 installations and Cassegrain antenna;
The centre frequency of the millimeter wave of Cassegrain antenna is 93GHz, and the wavelength of infrared frequency range is 1.06um, the paraboloid of revolution that its primary reflection surface 3 is metal structure, and its parabolic equation is:
y'
2＝162x'
Wherein x', y' are the point coordinates on parabola, and parabola caliber size is 135mm;
The center of the primary reflection surface 3 of Cassegrain antenna is provided with four symmetrical slots, and pyramidal horn antenna 5 is installed;
After having assembled, bimodulus combined antenna for 33.6dBi, is 74.1% in infrared frequency range transmitance in the gain of microwave frequency band centre frequency place zenith main poleization; Described combined antenna is less than 1.47 at 92-94GHz frequency band standing internal wave ratio; Accompanying drawing 6 provides the index path of combined antenna, and 8 represent the millimeter wave index path of W frequency range, and 9 represent infrared frequency range index path;
As shown in accompanying drawing 7-10, plane crisscross FSS is for the plane wave (0-45 ° of incident, 5 ° of steppings) of different angles incident, in 92-93GHz frequency range, the rangeability of reflection coefficient is (0.002 ,-0.08) dB, phase place excursion is (172.28,181.27) degree.The centre frequency of bimodulus combined antenna work is 93GHz.Because designed frequency-selective surfaces is chip unit, during resonance, present total reflection characteristic, therefore in theory can with perfact conductor (Perfect Electric Conductor, PEC) equivalence.At centre frequency 93GHz place, contrasted the cassette antenna system that the Cassegrain antenna system that is comprised of the present invention and Metallic Pairs reflecting surface form, in two orthogonal plane E faces and H face of antenna, antenna pattern is basically identical, the gain of zenith main poleization is respectively 33.6dBi, 34.5dBi, differ 0.9dBi, 3dB lobe width is 2.5 degree, and cross polarization isolation is also all in 35dB left and right.
Designed hyperbolic subreflector, because designed cell size is TV university size for the wavelength of infrared frequency range, thereby analyzes this structure by physioptial approximation method and can not cause too large error to infrared scattering.Do not considering under the impact of medium situation, this structure is decided by nonmetallic occupied area on face to infrared transmitance, and transmitance is 74.1%.
Claims (4)
1. a hyperbolic frequency selective surface spectroscope, it comprises: medium substrate (1) and be arranged in the metal patch (2) of described medium substrate (1) upper surface, is characterized in that:
Medium substrate (1) is selected translucent material, and dielectric constant 3.78, is shaped as the hyperboloid of revolution, and its Hyperbolic Equation is:
Wherein, wherein x, y are the point coordinates on hyperbola, hyperboloid even thickness, and caliber size is 24mm;
Metal patch (2) is decussate texture, its arrangement mode is: centered by a metal patch (2), cross its central point and do two cross one another 45 ° of dotted lines, four metal patches (2) are arranged on two cross one another 45 ° of dotted lines, and the central point line of described four metal patches (2) forms square, respectively centered by described four metal patches (2), continuity is arranged in this way, forms metal patch plane again;
The position that described metal patch floor plan is paralleled at the tangent plane with described medium substrate (1) central point, projection downwards, obtains position and the shape of described metal patch (2) in described medium substrate (1).
2. a kind of hyperbolic frequency selective surface spectroscope as claimed in claim 1, is characterized in that: the length l of described metal patch (2) is 1.05mm, and width w is 0.11mm, and the distance P of the adjacent described metal patch (2) that central point line is 45° angle is 1.3mm.
3. a kind of hyperbolic frequency selective surface spectroscope as claimed in claim 1 or 2, is characterized in that: the primary reflection surface (3) that it is fixedly mounted on Cassegrain antenna as subreflector (4) is upper, forms bimodulus combined antenna; The paraboloid of revolution that the primary reflection surface of described Cassegrain antenna (3) is metal structure, its parabolic equation is:
y'
2＝162x'
Wherein x', y' are the point coordinates on parabola, and parabola caliber size is 135mm;
The center of the primary reflection surface of described Cassegrain antenna (3) is provided with four symmetrical slots, and pyramidal horn antenna (5) is installed.
4. a kind of hyperbolic frequency selective surface spectroscope as claimed in claim 3, it is characterized in that: the back of described subreflector (4) is provided with cylinder shape medium bar (6), 3 metallic support rod (7) one end is fixedly connected with described cylinder shape medium bar (6), the other end is fixedly connected with the primary reflection surface (3) of described Cassegrain antenna, by the primary reflection surface (3) of described subreflector (4) installation and Cassegrain antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576423.3A CN103700949A (en) | 2013-11-18 | 2013-11-18 | Hyperbolic frequency selection surface spectroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576423.3A CN103700949A (en) | 2013-11-18 | 2013-11-18 | Hyperbolic frequency selection surface spectroscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103700949A true CN103700949A (en) | 2014-04-02 |
Family
ID=50362401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310576423.3A Pending CN103700949A (en) | 2013-11-18 | 2013-11-18 | Hyperbolic frequency selection surface spectroscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103700949A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037559A (en) * | 2017-12-01 | 2018-05-15 | 中国科学院长春光学精密机械与物理研究所 | A kind of broadband light splitting frequency dividing element and preparation method thereof |
| CN108281795A (en) * | 2017-12-05 | 2018-07-13 | 安徽四创电子股份有限公司 | A kind of frequency-selective surfaces type curved surface medium and Cassegrain antenna system |
| CN109633286A (en) * | 2018-12-03 | 2019-04-16 | 成都飞机工业（集团）有限责任公司 | A kind of carrier with electromagnetism test characteristic |
| CN109786975A (en) * | 2019-01-25 | 2019-05-21 | 西安电子科技大学 | A kind of realization device of OAM vortex electromagnetic wave orbit plane omnidirectional radiation |
| CN112394501A (en) * | 2020-11-04 | 2021-02-23 | 北京遥测技术研究所 | Satellite-borne flexible radio frequency laser integrated communication antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0575849A2 (en) * | 1992-06-26 | 1993-12-29 | Martin Marietta Corporation | Conformal photomask for three-dimensional printed circuit board technology |
| JP2634088B2 (en) * | 1990-05-24 | 1997-07-23 | 三菱電機株式会社 | Manufacturing method of frequency selective reflector |
| CN102832462A (en) * | 2012-09-07 | 2012-12-19 | 北京理工大学 | Design method of W-wave band single-pulse Cassegrain antenna |
-
2013
- 2013-11-18 CN CN201310576423.3A patent/CN103700949A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2634088B2 (en) * | 1990-05-24 | 1997-07-23 | 三菱電機株式会社 | Manufacturing method of frequency selective reflector |
| EP0575849A2 (en) * | 1992-06-26 | 1993-12-29 | Martin Marietta Corporation | Conformal photomask for three-dimensional printed circuit board technology |
| CN102832462A (en) * | 2012-09-07 | 2012-12-19 | 北京理工大学 | Design method of W-wave band single-pulse Cassegrain antenna |
Non-Patent Citations (1)
| Title |
|---|
| 李绪平: "频率选择表面及分形结构在其中的应用", 《中国优秀硕士学位论文全文数据库》, 28 February 2007 (2007-02-28) * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037559A (en) * | 2017-12-01 | 2018-05-15 | 中国科学院长春光学精密机械与物理研究所 | A kind of broadband light splitting frequency dividing element and preparation method thereof |
| CN108037559B (en) * | 2017-12-01 | 2019-10-29 | 中国科学院长春光学精密机械与物理研究所 | A kind of broadband light splitting frequency dividing element and preparation method thereof |
| CN108281795A (en) * | 2017-12-05 | 2018-07-13 | 安徽四创电子股份有限公司 | A kind of frequency-selective surfaces type curved surface medium and Cassegrain antenna system |
| CN108281795B (en) * | 2017-12-05 | 2020-10-30 | 安徽四创电子股份有限公司 | Frequency selection surface type curved surface medium and Cassegrain antenna system |
| CN109633286A (en) * | 2018-12-03 | 2019-04-16 | 成都飞机工业（集团）有限责任公司 | A kind of carrier with electromagnetism test characteristic |
| CN109633286B (en) * | 2018-12-03 | 2021-08-03 | 成都飞机工业（集团）有限责任公司 | Carrier with electromagnetic test characteristic |
| CN109786975A (en) * | 2019-01-25 | 2019-05-21 | 西安电子科技大学 | A kind of realization device of OAM vortex electromagnetic wave orbit plane omnidirectional radiation |
| CN112394501A (en) * | 2020-11-04 | 2021-02-23 | 北京遥测技术研究所 | Satellite-borne flexible radio frequency laser integrated communication antenna |
| CN112394501B (en) * | 2020-11-04 | 2022-05-10 | 北京遥测技术研究所 | Satellite-borne flexible radio frequency laser integrated communication antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| An et al. | A double-layer transmitarray antenna using malta crosses with vias | |
| CN103187616B (en) | Circular polarized antenna | |
| CN109755757B (en) | Broadband coding folding reflective array antenna based on sub-wavelength single-layer reflection unit | |
| CN107275788A (en) | A kind of millimeter wave fan-shaped beam cylinder Luneberg lens antenna based on metal perturbed structure | |
| CN111430936B (en) | 5G MIMO multi-beam antenna based on super surface | |
| Gao et al. | A dual-polarized 2-D monopulse antenna array for conical conformal applications | |
| CN103700949A (en) | Hyperbolic frequency selection surface spectroscope | |
| Li et al. | Single-layer dual-band wide band-ratio reflectarray with orthogonal linear polarization | |
| CN107978858A (en) | A kind of directional diagram reconstructable aerial for working in 60GHz frequency ranges | |
| CN104362435A (en) | Planar high-gain microstrip reflectarray antenna | |
| CN102176538B (en) | Multi-beam medium column lens antenna | |
| CN105470655A (en) | Millimeter-wave one-dimensional single-pulse double-planar reflection antenna | |
| CN114421163A (en) | Circular polarization vortex wave antenna based on GPS ceramic antenna array | |
| CN101420067A (en) | Multi-beam antenna using incongruous medium material antenna cover | |
| Mianroodi et al. | Dual-port dual-band (28/38 GHz) SIW leaky wave antenna for 5G base stations | |
| CN111276799B (en) | Radar antenna device and optimization method | |
| CN116885459A (en) | Design method of embedded widening angle scanning phased array antenna | |
| BK et al. | Complementary metamaterial superstrate for wide band high gain antenna | |
| CN113036411A (en) | Broadband circularly polarized reflective array antenna unit | |
| Guo et al. | Metamaterial covered modified antipodal Vivaldi antenna with lens | |
| Liu et al. | Direct synthesis of slot arrays for 5G communication applications | |
| He et al. | A 140 GHz LTCC-based High-efficiency Heterogeneous Reflectarray Antenna | |
| Park et al. | Spiral slot antenna fed by coplanar waveguide using magnetic phase difference | |
| Han et al. | Design and performance of a W-band MMW/IR compound Cassegrain antenna system with a hyperbolic sub-reflector based on frequency selective surface | |
| Ali et al. | Single Layer Metamaterial Superstrate for Gain Enhancement of A Microstrip Antenna Array |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140402 |