CN102361167A - Vertically polarized omnidirectional printing filtering antenna - Google Patents
Vertically polarized omnidirectional printing filtering antenna Download PDFInfo
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- CN102361167A CN102361167A CN2011103012914A CN201110301291A CN102361167A CN 102361167 A CN102361167 A CN 102361167A CN 2011103012914 A CN2011103012914 A CN 2011103012914A CN 201110301291 A CN201110301291 A CN 201110301291A CN 102361167 A CN102361167 A CN 102361167A
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Abstract
The invention discloses a vertically polarized omnidirectional printing filtering antenna which is prepared by employing printed circuit board (PCB) technology. The antenna is characterized in that: the antenna comprises a lower surface metal layer, a dielectric layer and an upper surface metal layer from the top down; one end of the upper surface metal layer is provided with a microstrip line which is connected with an SIW (substrate integrated waveguide) transmission line through a microstrip gradually change line, and the SIW transmission line is connected with a first series feed microstrip paster array through a gradually change printing parallel wire; the lower surface metal layer is provided with a second series feed microstrip paster array. The vertically polarized omnidirectional printing filtering antenna has the characteristics of easy preparation and high processing precision, and is especially suitable for high frequency like a Ku wave band usage.
Description
Technical field
The invention belongs to communication technology application, be specifically related to a kind of perpendicular polarization omnidirectional printing filter antenna.
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 omnidirectional antenna has each to the similar characteristics of radiation characteristic.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, omnidirectional radiation, easy making, antenna easy of integration become one of new research focus.
Perpendicular polarization omnidirectional radiation unit can adopt dipole to realize, single dipole radiation gain is limited, can adopt series feed array or and presents array and improve radiation gain.But in higher frequency band, the dipole of nonplanar structure difficulty aspect processing is high, complexity is high.The dipole array of planar structure need adopt power divider to carry out feed, and the radiating element number in the same array is many more, and feeding network is just more complicated.Simultaneously, along with the raising of frequency, such as at the Ku wave band, problem such as complicated feeding network can bring loss big again, and parasitic radiation is strong.
Summary of the invention
Goal of the invention: to the problem and shortage of above-mentioned existing existence; The purpose of this invention is to provide a kind of perpendicular polarization omnidirectional printing filter antenna, this antenna is easy to make, machining accuracy is high, at upper frequency; For example Ku wave band (12.4GHz-18GHz) is especially suitable.
Technical scheme: be to realize the foregoing invention purpose, the technical scheme that the present invention adopts is an a kind of perpendicular polarization omnidirectional printing filter antenna, has perpendicular polarization omnidirectional radiation characteristic.The radiating element 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 perpendicular polarization omnidirectional radiation characteristic, and cross polarization characteristics is good.The filter segment of filter antenna adopts the perceptual window filter of SIW (Substrate Integrated Waveguide, substrate integration wave-guide).Radiating element 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 has good inhibition effect to the working band external signal.
Printing filter antenna with perpendicular polarization omnidirectional radiation characteristic is a three-decker, and the centre is a dielectric layer, and the front is the upper surface metal level, and the back side is lower surface metal layer, 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 resonant cavity of the SIW perception window filter that constitutes by plated-through hole; The SIW transmission line is connected with series feed microband paste array through gradation type printing parallel wire; The metal patch of series feed microband paste array is printed on the upper surface and the lower surface of dielectric layer across; Adjacent metal paster with the surface is connected by the metal connecting line.
Beneficial effect: the present invention is based on printing PCB technology, employing has the radiating element of perpendicular polarization omnidirectional radiation characteristic and based on the technological filter construction of SIW, designs perpendicular polarization omnidirectional printing filter antenna.SIW perception window filter and radiating element collaborative work, having only could the excitation radiation unit through the signal of SIW filter.SIW perception window filter directly links to each other with radiating element 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.Whole perpendicular polarization omnidirectional printing filter antenna is prone to other microwave radio circuit integrated.The perpendicular polarization omnidirectional printing 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.
Perpendicular polarization omnidirectional printing 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 perpendicular polarization omnidirectional radiation characteristic, and vertical polarized antenna is difficult for producing polarization current, can effectively avoid energy attenuation, guarantees the signal propagation; Omnidirectional antenna has each to the similar characteristics of radiation; Change the metal patch number, can change antenna gain, simple.
Perpendicular polarization omnidirectional printing 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 medium substrate (being dielectric layer), can guarantee the consistency of whole array.
At high band, for example in the Ku frequency range, by the perpendicular polarization omnidirectional printing 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 (a) is series feed printed microstrip paster antenna upper surface metal-layer structure sketch map;
Fig. 1 (b) is series feed printed microstrip paster antenna lower surface metal layer structural representation;
Fig. 2 (a) is perpendicular polarization omnidirectional printing filter antenna upper surface metal-layer structure sketch map;
Fig. 2 (b) is perpendicular polarization omnidirectional printing filter antenna lower surface metal layer structural representation;
Fig. 3 is for being operated near series feed printed microstrip paster antenna of 14.4GHz and perpendicular polarization omnidirectional printing filter antenna input reflection coefficient test result among the embodiment;
Fig. 4 is for being operated near series feed printed microstrip paster antenna of 14.4GHz and the printing filter antenna E of perpendicular polarization omnidirectional surface radiation directional diagram test result among the embodiment;
Fig. 5 is for being operated near series feed printed microstrip paster antenna of 14.4GHz and the printing filter antenna H of perpendicular polarization omnidirectional surface radiation directional diagram test result among the embodiment.
Among the figure, 1. upper surface metal level, 2. lower surface metal layer, 3. metal patch; 4. metal connecting line, 5. little band transition line, 6. microstrip line, 7. gradation type printing parallel wire; 8. plated-through hole, the coupling window of 9.SIW perception window filter, 10.SIW perception window filter resonant cavity.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment; Further illustrate the present invention; Should understand these embodiment only be used to the present invention is described and be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Perpendicular polarization omnidirectional printing filter antenna, be with the SIW filter with radiating element co-design with perpendicular polarization omnidirectional radiation characteristic, be produced on the medium substrate.Filter antenna among the embodiment is operated in the Ku wave band; Radiating element is series feed microband paste array; Metal patch in this array is printed on the upper and lower surface of medium substrate across; Totally 10 metal patches have 5 metal patches on each surface, go up the adjacent metal paster with the surface and connect through the metal connecting line; Among the embodiment, filter segment adopts SIW three rank perception window filter.
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 is arranged, the SIW transmission line is connected with series feed microband paste array through gradation type printing parallel wire.
Filter antenna among Fig. 2 has perpendicular polarization, H face omnidirectional radiation characteristic.
According to Fig. 1 and Fig. 2 structure fabrication be operated in series feed printed microstrip paster antenna and the perpendicular polarization omnidirectional printing 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 2.55 Taconic (Tai Kangnike) that dielectric substrate has adopted thickness.Embodiment makes on above-mentioned medium 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 perpendicular polarization omnidirectional printing filter antenna of 14.4GHz 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 respectively 8.59mm, 9.44mm, 8.59mm; Gradation type printing parallel wire length is 2mm; Gradation type printing parallel double live width end width is 2mm; The narrow end width of gradation type printing parallel wire 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.
(" antenna " among the figure shown in the dotted line is series feed printed microstrip paster antenna to Fig. 3 in order to be operated near series feed printed microstrip paster antenna of 14.4GHz and perpendicular polarization omnidirectional printing filter antenna input reflection coefficient test result among the embodiment; " filter antenna " shown in the solid line is perpendicular polarization omnidirectional printing filter antenna; Down with), the outer spurious signal of band of can having seen the effective filtering of filter antenna; Fig. 4 be among the embodiment on 14.4GHz series feed printed microstrip paster antenna and perpendicular polarization omnidirectional printing filter antenna E surface radiation directional diagram test result; Fig. 5 be among the embodiment on 14.4GHz series feed printed microstrip paster antenna and perpendicular polarization omnidirectional printing filter antenna H surface radiation directional diagram test result.Fig. 4 and Fig. 5 show that filter antenna has effectively kept the radiation characteristic of radiating element.
Claims (6)
1. a perpendicular polarization omnidirectional printing filter antenna is characterized in that: be followed successively by lower surface metal layer, dielectric layer and upper surface metal level from top to bottom; End at said upper surface metal level is provided with microstrip line, and said microstrip line is connected with the SIW transmission line through little band transition line, and said SIW transmission line is connected with the first series feed microband paste array through gradation type printing parallel wire; Be provided with the second series feed microband paste array in said lower surface metal layer.
2. according to the said perpendicular polarization of claim 1 omnidirectional printing filter antenna, it is characterized in that: said SIW transmission line is two row's plated-through holes between said upper surface metal level and the lower surface metal layer, that pass said dielectric layer.
3. according to the said perpendicular polarization of claim 1 omnidirectional printing filter antenna, it is characterized in that: on said SIW transmission line, be provided with the coupling window resonant cavity of the SIW perception window filter that constitutes by plated-through hole.
4. according to the said perpendicular polarization of claim 1 omnidirectional printing filter antenna, it is characterized in that: the said first series feed microband paste array and the second series feed microband paste array comprise a plurality of metal patches respectively, and adjacent said metal patch is connected by the metal connecting line.
5. according to the said perpendicular polarization of claim 4 omnidirectional printing filter antenna, it is characterized in that: the said first series feed microband paste array and the second series feed microband paste array comprise 5 metal patches respectively.
6. according to the said perpendicular polarization of claim 4 omnidirectional printing filter antenna, it is characterized in that: the metal patch of the metal patch of the said first series feed microband paste array and the second series feed microband paste array is printed on upper surface metal level and lower surface metal layer across.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103012914A CN102361167A (en) | 2011-10-08 | 2011-10-08 | Vertically polarized omnidirectional printing filtering antenna |
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| CN2011103012914A CN102361167A (en) | 2011-10-08 | 2011-10-08 | Vertically polarized omnidirectional printing filtering antenna |
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| CN102361167A true CN102361167A (en) | 2012-02-22 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767009A (en) * | 2015-02-16 | 2015-07-08 | 东南大学 | Filter synthesizing artificial surface plasmon device waveguide and substrate integrated waveguide |
| CN106099353A (en) * | 2016-08-03 | 2016-11-09 | 华南理工大学 | A kind of broadband millimeter-wave antenna array |
| CN108417995A (en) * | 2018-05-11 | 2018-08-17 | 深圳市信维通信股份有限公司 | Antenna element and array antenna for 5G mobile communication |
| CN108701902A (en) * | 2016-01-14 | 2018-10-23 | Iee国际电子工程股份公司 | For sensing and the narrowband leaky-wave antenna of the relevant object of vehicle |
| CN112768889A (en) * | 2020-12-25 | 2021-05-07 | 深圳市南斗星科技有限公司 | Filtering antenna, antenna array and wireless device |
| CN113540778A (en) * | 2021-07-02 | 2021-10-22 | 西南交通大学 | Super-surface-covered vertical polarization plane broadband end-fire antenna |
| CN115473044A (en) * | 2022-09-30 | 2022-12-13 | 广东中元创新科技有限公司 | WiFi omnidirectional antenna with filtering function |
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| CN201498598U (en) * | 2009-06-10 | 2010-06-02 | 东南大学 | Printing log-periodic dipole array antenna |
| CN102122764A (en) * | 2011-03-23 | 2011-07-13 | 东南大学 | Substrate integrated waveguide filtering antenna for frequency division duplex system |
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| JPH0372323A (en) * | 1989-08-14 | 1991-03-27 | Fuji Photo Film Co Ltd | Manufacture of liquid crystal display element |
| JPH09172323A (en) * | 1995-12-20 | 1997-06-30 | Fujitsu General Ltd | Plane antenna |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767009B (en) * | 2015-02-16 | 2017-12-05 | 东南大学 | A kind of waveguide of comprehensive artificial surface phasmon device and the wave filter of substrate integration wave-guide |
| CN104767009A (en) * | 2015-02-16 | 2015-07-08 | 东南大学 | Filter synthesizing artificial surface plasmon device waveguide and substrate integrated waveguide |
| CN108701902A (en) * | 2016-01-14 | 2018-10-23 | Iee国际电子工程股份公司 | For sensing and the narrowband leaky-wave antenna of the relevant object of vehicle |
| US11108163B2 (en) | 2016-01-14 | 2021-08-31 | Iee International Electronics & Engineering S.A. | Narrowband leaky wave antenna for sensing objects in relation to a vehicle |
| CN108701902B (en) * | 2016-01-14 | 2021-10-15 | Iee国际电子工程股份公司 | Narrow-band leaky-wave antenna for sensing objects related to vehicles |
| CN106099353A (en) * | 2016-08-03 | 2016-11-09 | 华南理工大学 | A kind of broadband millimeter-wave antenna array |
| CN106099353B (en) * | 2016-08-03 | 2018-10-30 | 华南理工大学 | A kind of broadband millimeter-wave antenna array |
| CN108417995B (en) * | 2018-05-11 | 2023-09-12 | 深圳市信维通信股份有限公司 | Antenna unit and array antenna for 5G mobile communication |
| CN108417995A (en) * | 2018-05-11 | 2018-08-17 | 深圳市信维通信股份有限公司 | Antenna element and array antenna for 5G mobile communication |
| CN112768889A (en) * | 2020-12-25 | 2021-05-07 | 深圳市南斗星科技有限公司 | Filtering antenna, antenna array and wireless device |
| CN112768889B (en) * | 2020-12-25 | 2023-08-25 | 深圳市南斗星科技有限公司 | Filtering antenna, antenna array and wireless device |
| CN113540778B (en) * | 2021-07-02 | 2022-11-22 | 西南交通大学 | Super-surface-covered vertical polarization plane broadband end-fire antenna |
| CN113540778A (en) * | 2021-07-02 | 2021-10-22 | 西南交通大学 | Super-surface-covered vertical polarization plane broadband end-fire antenna |
| CN115473044A (en) * | 2022-09-30 | 2022-12-13 | 广东中元创新科技有限公司 | WiFi omnidirectional antenna with filtering function |
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Application publication date: 20120222 |