CN102522627A - Vertical polarization directional-printing filtering antenna - Google Patents
Vertical polarization directional-printing filtering antenna Download PDFInfo
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- CN102522627A CN102522627A CN2011104065618A CN201110406561A CN102522627A CN 102522627 A CN102522627 A CN 102522627A CN 2011104065618 A CN2011104065618 A CN 2011104065618A CN 201110406561 A CN201110406561 A CN 201110406561A CN 102522627 A CN102522627 A CN 102522627A
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Abstract
The invention relates to a vertical polarization directional-printing filtering antenna, which comprises a three-layer structure, wherein the middle layer is a medium layer; the front side of the medium layer is an upper-surface metal layer (1); all the back of the medium layer is a metal layer which is called a lower-surface metal layer; one end of the upper-surface metal layer (1) is connected with a microstrip line (4); the microstrip line (4) is connected with a SIW (Substrate Integrated Waveguide) transmission line by a microstrip transition line (5); the SIW transmission line is provided with an SIW inductive window filter coupling window (8) formed by a metallized through hole (7) and with an SIW inductive window filter resonant cavity (9); the SIW transmission line is connected with a crossfeed microstrip patch array by a graded-index microstrip line (6); and the crossfeed microstrip patch array is formed by the feeding of a metal patch (2) by a metal connecting line (3). The antenna is easy to manufacture, has high machining precision and is especially suitable for high frequency, such as a Ku waveband.
Description
Technical field
The invention belongs to communication technology application, be specifically related to a kind of perpendicular polarization directional filtering antenna.Perpendicular polarization directional filtering antenna; Be the radiating curtain and substrate integration wave-guide (the Substrate Integrated Waveguide that will have the perpendicular polarization directional radiation properties; SIW) filter carries out co-design; Filter antenna when keeping the perpendicular polarization directional radiation properties, the outer spurious signal of filtering working band well.
Background technology
In recent years, wireless communication technology has obtained fast development, and has obtained extensive use.Antenna is the critical component of wireless communication system, and wherein directional antenna has the high characteristics of gain in certain range of radiation angle.Modern Communication System requires low cost, is prone to make, be easy to and the integrated antenna of other microwave radio planar circuits.LF communication has tended to saturated at present, so high band, easy making, antenna easy of integration become one of new research focus.
Usually, independently the radiating element gain is lower, improves gain like need, can adopt array structure.But along with the raising of frequency, such as at the Ku wave band, complicated feeding network can bring problems such as loss is big, parasitic radiation is strong.
Print series feed microband paste array; Has the perpendicular polarization directional radiation properties; It has good cross polarization characteristics its design feature decision, and all control easily of gain and beamwidth simultaneously can improve radiation gain through increasing the paster number; Change beamwidth through changing back metal ground width, to satisfy the different application demand.
SIW has the structure sealing as a kind of planar circuit, and the characteristics that loss is little, parasitic radiation is weak are fit to the high band communication system applications.Filter Q value based on the SIW technology is high, loss is little, be prone to making, machining accuracy is high, compares with little band or cavity body filter commonly used, and clear superiority is arranged.
Summary of the invention
Technical problem:The present invention proposes the directed printing of a kind of perpendicular polarization filter antenna, and this antenna is easy to make, machining accuracy is high, and at upper frequency, for example the Ku wave band is especially suitable.
Technical scheme:For solving the problems of the technologies described above, the present invention proposes the directed printing of a kind of perpendicular polarization filter antenna, and this filter antenna is a three-decker; The centre is a dielectric layer; The dielectric layer front is the upper surface metal level, and the back side of dielectric layer all is metal level, is called lower surface metal layer;
The directed printing of perpendicular polarization filter antenna is a three-decker, and the centre is a dielectric layer, and the dielectric layer front is the upper surface metal level, and the back side of dielectric layer all is metal level, is called lower surface metal layer;
End at the upper surface metal level is provided with microstrip line, and microstrip line is connected with the SIW transmission line through little band transition line; On the SIW transmission line, be provided with the coupling window of the SIW perception window filter that constitutes by plated-through hole and the resonant cavity of SIW perception window filter;
The SIW transmission line is connected with series feed microband paste array through the gradation type microstrip line; Little band metal patch of series feed microband paste array is printed on the front of dielectric layer; The adjacent metal paster is connected by the metal connecting line.
Described SIW transmission line by two rows at a distance of certain distance, plated-through hole between upper surface metal level and lower surface metal layer, that pass dielectric layer constitutes.
Distance between the plated-through hole of described SIW transmission line both sides is a SIW transmission line width.
Described series feed microband paste array is a radiant section, and metal patch is printed on the front of dielectric layer, totally 4 metal patches.
Described SIW perception window filter adopts SIW three rank perception window filter.
Beneficial effect:The present invention is based on printing PCB technology, employing has the radiating curtain of perpendicular polarization directional radiation properties and based on the technological filter construction of SIW, designs the directed printing of perpendicular polarization filter antenna.SIW perception window filter and radiating curtain collaborative work, having only could the excitation radiation array through the signal of SIW filter.SIW perception window filter directly links to each other with radiating curtain as radio frequency front-end filter, can avoid common cable to connect the loss that brings.
The SIW loss is little, parasitic radiation is extremely low, be planar structure, be easy to adopt Standard PC B processes, and series feed microband paste array is easy to adopt Standard PC B processes equally.The directed printing of whole perpendicular polarization filter antenna is prone to other microwave radio circuit integrated.The directed printing of the perpendicular polarization filter antenna that adopts PCB technology to make, machining accuracy is high, at high band, Ku wave band for example, can effectively solve circuit size little, make difficult problem, simultaneously processing cost low, be easy to produce in batches.
The directed printing of perpendicular polarization filter antenna can well the outer spurious signal of filtering working band, effectively improves the input reflection coefficient of separate antenna, keeps the radiation characteristic of antenna constant simultaneously.Filter antenna has the perpendicular polarization directional radiation properties, and vertical polarized antenna is difficult for producing polarization current, can effectively avoid energy attenuation, guarantees the signal propagation; Directional antenna will produce intense radiation in the special angle scope.
Through changing the number of metal patch, can easily control the gain of filter antenna; Through changing the width on medium back metal ground, can easily control the beamwidth of filter antenna.
The directed printing of perpendicular polarization filter antenna is a kind of flat plane antenna, and when forming multiple-input and multiple-output (MIMO) array, a plurality of filter antennas can be integrated on the same block of dielectric-slab, can guarantee the consistency of whole array.
At high band, for example in the Ku frequency range, by the directed printing of the perpendicular polarization filter antenna that SIW filter and series feed printed microstrip paster constitute, parasitic radiation is weak, cross polarization characteristics is good.
Description of drawings
Fig. 1 is series feed printed microstrip paster antenna upper surface metal-layer structure sketch map (being used for test relatively);
Fig. 2 is the directed printing of a perpendicular polarization filter antenna upper surface metal-layer structure sketch map;
Be operated near series feed printed microstrip paster antenna of 14.4GHz and the directed printing of perpendicular polarization filter antenna input reflection coefficient test result among Fig. 3 embodiment;
On the 14.4GHz, the perpendicular polarization orientation is printed filter antenna E face and H surface radiation directional diagram test result among Fig. 4 embodiment;
Among the figure, 1. upper surface metal level, 2. kummerbund metal patch, 3. metal connecting line, 4. microstrip line, 5. little band transition line, 6. gradation type microstrip line, 7. plated-through hole, 8. SIW perception window filter coupling window, 9. SIW perception window filter resonant cavity.
Embodiment
The present invention will be described below with reference to accompanying drawings.
Filter antenna among the present invention has the perpendicular polarization directional radiation properties.The radiant section of filter antenna adopts series feed microband paste array; The number of microband paste will directly determine the radiation gain of filter antenna, and the microband paste number is many more, and the filter antenna gain is high more; Series feed microband paste array has the perpendicular polarization directional radiation properties, and cross polarization characteristics is good.The filter segment of filter antenna adopts SIW perception window filter.Radiant section and filter segment all are planar structure, can adopt the PCB technology of standard to make, be prone to realize, easy of integration, precision is high, cost is low, especially at high band, Ku wave band for example, can effectively solve circuit size little, make difficult problem.Filter antenna will have good inhibition effect to the working band external signal.
Printing filter antenna with perpendicular polarization directional radiation properties is a three-decker, and the centre is a dielectric layer, and the front is the upper surface metal level, and the back side all is metal level, and profile is a rectangle; End at the upper surface metal level is connected with microstrip line, and microstrip line is connected with the SIW transmission line through little band transition line; The SIW transmission line is made up of two rows plated-through hole between certain distance (SIW transmission line width), upper surface metal level and lower surface metal layer, that pass dielectric layer; On the SIW transmission line, be provided with the coupling window of the SIW perception window filter that constitutes by plated-through hole and the resonant cavity of SIW perception window filter; The SIW transmission line is connected with series feed microband paste array through the gradation type microstrip line; The metal patch of series feed microband paste array is printed on the upper surface of dielectric-slab; The adjacent metal paster is connected by the metal connecting line.
The directed printing of perpendicular polarization filter antenna is with radiating curtain with perpendicular polarization directional radiation properties and SIW filter co-design, is produced on the medium substrate.Filter antenna among the embodiment is operated in the Ku wave band; Radiant section is series feed printed microstrip patch array, and metal patch is printed on the upper surface of dielectric-slab, totally 4 metal patches; The adjacent metal paster connects through the metal connecting line, and the dielectric-slab lower surface all is a metal level; Among the embodiment, filter segment adopts SIW three rank perception window filter.
It among Fig. 1 series feed printed microstrip paster antenna upper surface metal-layer structure sketch map (being used for test relatively); It among Fig. 2 the directed printing of perpendicular polarization filter antenna upper surface metal-layer structure sketch map.
Among the embodiment, all adopting characteristic impedance like the antenna among Fig. 1 and Fig. 2 is that 50 ohm microstrip are as feed port.Among Fig. 1, connecting through little band transition line between 50 ohm microstrip input ports and the metal patch, is the metal patch feed then.Among Fig. 2, connect through little band transition line between 50 ohm microstrip input ports and the SIW transmission line, the SIW transmission line by between upper surface metal level and the lower surface metal layer, the plated-through hole that passes dielectric layer constitutes; On the SIW transmission line, the coupling window of the SIW perception window filter that is made up of plated-through hole and the resonant cavity of SIW perception window filter are arranged, the SIW transmission line is connected with series feed microband paste array through the gradation type microstrip line.
Filter antenna among Fig. 2 has perpendicular polarization, directional radiation properties.
According to Fig. 1 and Fig. 2 structure fabrication be operated in the directed printing of series feed printed microstrip paster antenna and the perpendicular polarization filter antenna of 14.4GHz.Antenna adopts PCB technology to be produced on the dielectric substrate.It is that the dielectric constant of 1mm is that 2.55 Taconic (Tai Kangnike) is as dielectric-slab that dielectric substrate has adopted thickness.Embodiment makes on above-mentioned substrate by following size:
Be operated near the series feed printed microstrip paster antenna of 14.4GHz among the embodiment: micro belt line width is 2.8mm; Little band transition line length is 3.5mm; Little the narrow end width of transition line is 0.5mm; Metal patch length is 6.45mm; The metal patch width is 2.7mm; Metal connecting line length is 7.45mm; Metal connecting line width is 0.5mm.
Be operated near the directed printing of the perpendicular polarization of 14.4GHz filter antenna among the embodiment: micro belt line width is 2.8mm; Little band transition line length is 1.5mm; Little some gradual change live width end width is 4.5mm; The plated-through hole diameter is 0.6mm; The adjacent metal through-hole spacing is 1mm; Four coupling window width of SIW perception window filter are respectively 5.36mm, 3.57mm, 3.57mm, 5.36mm; Three cavity lengths of SIW perception window filter are for Wei not 8.59mm, 9.44mm, 8.59mm; Gradation type printing parallel wire length is 2mm; The wide end width of gradation type microstrip line is 2mm; The narrow end width of gradation type microstrip line is 0.5mm; Metal patch length is 6.45mm; The metal patch width is 2.7mm; Metal connecting line length is 7.65mm; Metal connecting line width is 0.5mm.
Fig. 3 is for being operated near the series feed printed microstrip paster antenna and the directed printing of perpendicular polarization filter antenna input reflection coefficient test result the 14.4GHz among the embodiment, can see the effective filtering of filter antenna and be with outer spurious signal; Fig. 4 be among the embodiment on 14.4GHz perpendicular polarization directed printing filter antenna E face and H surface radiation directional diagram test result, the result shows that filter antenna has effectively kept the radiation characteristic of radiating curtain.
The above is merely preferred embodiments of the present invention; Protection scope of the present invention is not exceeded with above-mentioned execution mode; As long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection range of putting down in writing in claims.
Claims (5)
1. a perpendicular polarization orientation is printed filter antenna, and it is characterized in that: this wave antenna is a three-decker, and the centre is a dielectric layer, and the dielectric layer front is upper surface metal level (1), and the back side of dielectric layer all is metal level, is called lower surface metal layer;
End at upper surface metal level (1) is provided with microstrip line (4), and microstrip line (4) is connected with the SIW transmission line through little band transition line (5); On the SIW transmission line, be provided with the coupling window (8) of the SIW perception window filter that constitutes by plated-through hole (7) and the resonant cavity (9) of SIW perception window filter;
The SIW transmission line is connected with series feed microband paste array through gradation type microstrip line (6); Little band metal patch (2) of series feed microband paste array is printed on the front of dielectric layer; Adjacent metal paster (2) is connected by metal connecting line (3).
2. the directed printing of perpendicular polarization according to claim 1 filter antenna, it is characterized in that described SIW transmission line by two rows at a distance of certain distance, be positioned at plated-through hole between upper surface metal level (1) and the lower surface metal layer, that pass dielectric layer (7) and constitute.
3. the directed printing of perpendicular polarization according to claim 1 and 2 filter antenna is characterized in that the distance between the described SIW transmission line both sides plated-through holes (7) is a SIW transmission line width.
4. the directed printing of perpendicular polarization according to claim 1 filter antenna is characterized in that described series feed microband paste array is a radiant section, and metal patch (2) is printed on the front of dielectric layer, totally 4 metal patches.
5. the directed printing of perpendicular polarization according to claim 1 filter antenna is characterized in that described SIW perception window filter adopts SIW three rank perception window filter.
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| CN2011104065618A CN102522627A (en) | 2011-12-09 | 2011-12-09 | Vertical polarization directional-printing filtering antenna |
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| CN2011104065618A CN102522627A (en) | 2011-12-09 | 2011-12-09 | Vertical polarization directional-printing filtering antenna |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449322A (en) * | 2015-11-30 | 2016-03-30 | 超视距成都科技有限责任公司 | Millimeter wave dual-passband filter and design method therefor |
| CN106104923A (en) * | 2014-03-03 | 2016-11-09 | 株式会社藤仓 | Microstrip antenna |
| CN106654539A (en) * | 2017-01-18 | 2017-05-10 | 华南理工大学 | Filtering antenna based on metal integrated structure |
| CN109193146A (en) * | 2018-09-12 | 2019-01-11 | 北京工业大学 | A kind of micro-strip millimeter wave antenna |
| KR101952765B1 (en) * | 2017-12-27 | 2019-02-27 | 인천대학교 산학협력단 | Hybrid antenna based on substrate integrated waveguide beamforming array antenna for 5g coexisting with lte |
| CN109687172A (en) * | 2018-11-02 | 2019-04-26 | 江苏贝孚德通讯科技股份有限公司 | The bay and millimeter wave antenna array, communication device of Vertical collection filter |
| CN111916891A (en) * | 2019-05-09 | 2020-11-10 | 和硕联合科技股份有限公司 | Antenna structure |
| CN113363696A (en) * | 2021-05-18 | 2021-09-07 | 杭州电子科技大学 | Planar integrated millimeter wave series-fed horn array with filtering characteristic |
| EP3817148A4 (en) * | 2018-06-26 | 2022-03-16 | Kyocera Corporation | Antenna element, array antenna, communication unit, mobile body, and base station |
| CN109888511B (en) * | 2019-04-15 | 2023-12-08 | 上海几何伙伴智能驾驶有限公司 | Circularly polarized microstrip panel antenna |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106104923A (en) * | 2014-03-03 | 2016-11-09 | 株式会社藤仓 | Microstrip antenna |
| CN106104923B (en) * | 2014-03-03 | 2019-05-10 | 株式会社藤仓 | Microstrip antenna |
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| CN106654539A (en) * | 2017-01-18 | 2017-05-10 | 华南理工大学 | Filtering antenna based on metal integrated structure |
| CN106654539B (en) * | 2017-01-18 | 2023-07-18 | 华南理工大学 | Filtering antenna based on metal integrated structure |
| KR101952765B1 (en) * | 2017-12-27 | 2019-02-27 | 인천대학교 산학협력단 | Hybrid antenna based on substrate integrated waveguide beamforming array antenna for 5g coexisting with lte |
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| US11387572B2 (en) | 2018-06-26 | 2022-07-12 | Kyocera Corporation | Antenna element, array antenna, communication unit, mobile object, and base station |
| CN109193146A (en) * | 2018-09-12 | 2019-01-11 | 北京工业大学 | A kind of micro-strip millimeter wave antenna |
| CN109687172A (en) * | 2018-11-02 | 2019-04-26 | 江苏贝孚德通讯科技股份有限公司 | The bay and millimeter wave antenna array, communication device of Vertical collection filter |
| CN109888511B (en) * | 2019-04-15 | 2023-12-08 | 上海几何伙伴智能驾驶有限公司 | Circularly polarized microstrip panel antenna |
| CN111916891A (en) * | 2019-05-09 | 2020-11-10 | 和硕联合科技股份有限公司 | Antenna structure |
| CN111916891B (en) * | 2019-05-09 | 2022-11-01 | 和硕联合科技股份有限公司 | Antenna structure |
| CN113363696A (en) * | 2021-05-18 | 2021-09-07 | 杭州电子科技大学 | Planar integrated millimeter wave series-fed horn array with filtering characteristic |
| CN113363696B (en) * | 2021-05-18 | 2022-07-01 | 杭州电子科技大学 | Planar integrated millimeter wave series-fed horn array with filtering characteristic |
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Application publication date: 20120627 |