CN101645537B - Seminorm substrate integrated waveguide feeding bandwidth log periodic dipole array antenna - Google Patents
Seminorm substrate integrated waveguide feeding bandwidth log periodic dipole array antenna Download PDFInfo
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- CN101645537B CN101645537B CN200910033242XA CN200910033242A CN101645537B CN 101645537 B CN101645537 B CN 101645537B CN 200910033242X A CN200910033242X A CN 200910033242XA CN 200910033242 A CN200910033242 A CN 200910033242A CN 101645537 B CN101645537 B CN 101645537B
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- 239000000758 substrate Substances 0.000 title claims abstract description 79
- 230000000737 periodic effect Effects 0.000 title claims abstract description 60
- 239000002184 metal Substances 0.000 claims abstract description 29
- 230000007704 transition Effects 0.000 claims abstract description 9
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 240000001439 Opuntia Species 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
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- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention relates to a seminorm substrate integrated waveguide feeding bandwidth log periodic dipole array antenna comprising a medium substrate (1), an upper surface metal coating (2), a lower surface metal coating (3) and a metallized through hole (4). An assembly line (5) on the upper surface of a log periodic dipole array antenna on the upper surface metal coating (2), an upper surface feed source array antenna (7) of the log periodic dipole array antenna, the upper surface (9) of a seminorm substrate integrated waveguide, a micro-strip gradual change transition line (6) and an output 50-ohm micro-stripe line (8) are connected in sequence; the lower surface metal coating (3) comprises an assembly line (11) of the lower surface of the log periodic dipole array antenna, which is parallel symmetrical with the assembly line (5) on the upper surface of a log periodic dipole array antenna, a lower surface feed source array antenna (12) of the log periodic dipole array antenna, which is crossly symmetrical with the upper surface feed source array antenna (7) of the log periodic dipole array antenna, a lower surface (13) of the seminorm substrate integrated waveguide and a ground surface (14) of the micro-stripe line.
Description
Technical field
The present invention is a kind of broadband logarithmically periodic dipole array antenna designing technique based on novel half-mould substrate integrated waveguide feed structure.The antenna package that designs contains logarithmically periodic dipole array antenna and half module substrate integrated wave guide structure two parts.Through with half module substrate integrated wave guide and the cascade of logarithmically periodic dipole array antenna, formed the broad-band antenna that feed structure is simple, the work zone is wide, loss is little.This Antenna Design is technological based on plane electric circuit, advantages of small volume, and it is integrated to be fit to level.
Background technology
Along with the high speed development of the communication technology, have extensive studies and application that the wide-band communication system of plurality of advantages such as low complex degree, low cost, work zone be wide obtains.The space Log Periodic Array Antenna is widely used in wide-band communication system, because its volume develops into the printing Log Periodic Array Antenna greatly and progressively, but the logarithm periodic antenna of millimeter wave printing at present is difficult to use coaxial feeding.The volume of half module substrate integrated wave guide only works in substrate integration wave-guide half the of same frequency range; Therefore be that a kind of low section, low cost, work zone are wide, simplicity of design, planar transmission line structure that size is littler; The current and phase difference of going up simultaneously lower plane is 180 °, has the balanced line characteristic.Logarithm periodic antenna and half module substrate integrated wave guide structure are combined, can form low section, wide-band printing Log Periodic Array Antenna cheaply.
Summary of the invention
Technical problem: the broadband logarithmically periodic dipole array antenna that the objective of the invention is to propose a kind of half-mould substrate integrated waveguide feed; This antenna not only has broadband character; And simple in structure, advantages of small volume; Satisfy the integrated requirement of planar circuit, and have cost low, be convenient to advantage such as batch process, therefore be applicable to the application scenario of wide-band communication system.
Technical scheme: broad-band antenna of the present invention comprises half module substrate integrated wave guide and Log Periodic Array Antenna two parts, realizes at the microwave-medium substrate through printed-board technology.
The broadband logarithmically periodic dipole array antenna of half-mould substrate integrated waveguide feed comprise dielectric substrate, the upper surface coat of metal on the dielectric substrate, the lower surface coat of metal under the dielectric substrate be positioned at substrate on be connected the upper surface coat of metal and the lower surface coat of metal one row plated-through hole; The upper surface of the assembly line of the logarithmically periodic dipole array antenna upper surface on the upper surface coat of metal, logarithmically periodic dipole array antenna upper surface feed a period of time antenna, half module substrate integrated wave guide, little band gradual transition line, output 50 ohm microstrip are linked in sequence; The lower surface coat of metal includes with the assembly line of the logarithmically periodic dipole array antenna lower surface of the parallel symmetry of assembly line of logarithmically periodic dipole array antenna upper surface, intersects logarithmically periodic dipole array antenna lower surface feed a period of time antenna of symmetry, the lower surface of half module substrate integrated wave guide, the ground surface of microstrip line with logarithmically periodic dipole array antenna upper surface feed a period of time antenna.
The upper surface of half module substrate integrated wave guide directly is connected with the assembly line of the upper surface of logarithmically periodic dipole array antenna; The lower surface of half module substrate integrated wave guide directly is connected with the assembly line of the lower surface of logarithmically periodic dipole array antenna, has formed the feed structure of this antenna; Simultaneously plated-through hole is on dielectric substrate, to offer through hole, this plated-through hole be overlying on the upper surface of the half module substrate integrated wave guide of dielectric substrate bilateral, the lower surface of half module substrate integrated wave guide couples together.
Beneficial effect:
1. antenna has broadband character, can satisfy the requirement of wide-band microwave millimeter-wave communication system;
2. Antenna Design is simple, at millimeter wave frequency band, directly uses half module substrate integrated wave guide technology feed to book periodic array antenna, has realized simplification, complanation and easy of integrationization of feed structure.
3. the antenna overall volume is small and exquisite, adopts half module substrate integrated wave guide as feeder line, can make things convenient for the microwave planar circuit height integratedly, is fit to move compact apparatus and uses;
4. the each several part of entire antenna becomes one, and is simple in structure, all utilizes the PCB explained hereafter, and cost is low, precision is high, good reproducibility, is fit to produce in enormous quantities.
5. aerial loss is low, because feed adopts the half module substrate integrated wave guide structure, has low loss characteristic at millimeter wave frequency band.
Description of drawings
Fig. 1 is the end view of the logarithmically periodic dipole array antenna of half-mould substrate integrated waveguide feed.
Fig. 2 is the top view of the logarithmically periodic dipole array antenna of half-mould substrate integrated waveguide feed.
Fig. 3 is the bottom view of the logarithmically periodic dipole array antenna of half-mould substrate integrated waveguide feed.
Fig. 4 a is the left-half sketch map of embodiment 1, and Fig. 4 b is that to execute example 1 right half part be sketch map;
Fig. 5 is the antenna measurement reflection coefficient of embodiment 1,
Fig. 6, Fig. 7, Fig. 8, Fig. 9 be the antenna of embodiment 1 respectively at the directional diagram of 20GHz, 30GHz, 35GHz, 40GHz, comprise E face main pole directional diagram, H face main pole directional diagram, H hand-deliver fork polarised direction figure and E hand-deliver fork polarised direction figure.
Have among the above figure: dielectric substrate 1, the upper surface coat of metal 2, the lower surface coat of metal 3; Plated-through hole 4, the assembly line 5 of logarithmically periodic dipole array antenna upper surface, little band gradual transition line 6; Logarithmically periodic dipole array antenna upper surface feed a period of time antenna 7 is exported 50 ohm microstrip 8, the upper surface 9 of half module substrate integrated wave guide; Output port 10, the assembly line 11 of logarithmically periodic dipole array antenna lower surface, logarithmically periodic dipole array antenna lower surface feed a period of time antenna 12; The lower surface 13 of half module substrate integrated wave guide, the ground surface 14 of microstrip line.
Embodiment
The wide-band printing Log Periodic Array Antenna is by a dielectric substrate, and the double layer of metal coating and the row's plated-through hole that cover at the dielectric substrate upper and lower surfaces constitute jointly; The upper surface coat of metal includes upper strata metal covering, assembly line and the crossed antenna radiating element of 50 ohm microstrip, little band transition line, half module substrate integrated wave guide; The lower surface coat of metal includes the lower surface metal layer of half module substrate integrated wave guide, ground surface, assembly line and the crossed antenna unit of microstrip line; Plated-through hole is positioned at a side of substrate, and opposite side is the opening surface of half module substrate integrated wave guide.Antenna radiation unit adopts cross-couplings a period of time of upper and lower surfaces; Feeder line partly adopts the half module substrate integrated wave guide form, and feeder line partly with between the antenna radiation unit directly is connected through assembly line; For convenient test, little band transition line is used for mating substrate integration wave-guide and 50 ohm microstrip simultaneously.
The Log Periodic Array Antenna of half-mould substrate integrated waveguide feed (like Fig. 1-shown in Figure 3), this antenna comprise dielectric substrate 1, the upper surface coat of metal 2 on the dielectric substrate 1, the lower surface coat of metal 3 under the dielectric substrate 1 be positioned at substrate 1 on be connected row's plated-through hole 4 of the upper surface coat of metal 2 and the lower surface coat of metal 3; The upper surface 9 of the assembly line 5 of the logarithmically periodic dipole array antenna upper surface on the upper surface coat of metal 2, logarithmically periodic dipole array antenna upper surface feed a period of time antenna 7, half module substrate integrated wave guide, little band gradual transition line 6, output 50 ohm microstrip 8 are linked in sequence; The lower surface coat of metal 3 includes with the assembly line 11 of the logarithmically periodic dipole array antenna lower surface of the assembly line 5 parallel symmetries of logarithmically periodic dipole array antenna upper surface, intersects logarithmically periodic dipole array antenna lower surface feed a period of time antenna 12 of symmetry, the lower surface 13 of half module substrate integrated wave guide, the ground surface 14 of microstrip line with logarithmically periodic dipole array antenna upper surface feed a period of time antenna 7.
The upper surface 9 of half module substrate integrated wave guide directly is connected with the assembly line 5 of the upper surface of logarithmically periodic dipole array antenna; The lower surface 13 of half module substrate integrated wave guide directly is connected with the assembly line 11 of the lower surface of logarithmically periodic dipole array antenna, has formed the feed structure of this antenna; Simultaneously plated-through hole 4 is on dielectric substrate 1, to offer through hole, this plated-through hole 4 be overlying on the upper surface 9 of the half module substrate integrated wave guide of dielectric substrate 1 bilateral, the lower surface 13 of half module substrate integrated wave guide couples together.
Wherein the lower surface 13 of the upper surface 9 of plated-through hole 4, half module substrate integrated wave guide and half module substrate integrated wave guide constitutes the half module substrate integrated wave guide structures jointly.The ground surface 14 of little band gradual transition line 6, output 50 ohm microstrip 8 and microstrip line has constituted the match circuit of half module substrate integrated wave guide and 50 ohm microstrip.The assembly line 11 of the assembly line 5 of logarithmically periodic dipole array antenna upper surface, logarithmically periodic dipole array antenna upper surface feed a period of time antenna 7, logarithmically periodic dipole array antenna lower surface and array antenna of dipoles lower surface feed a period of time one number time antenna 12 have constituted the logarithmically periodic dipole array antenna structure.
This antenna has formed the current balance type characteristic of upper surface feed a period of time antenna 7 and lower surface feed a period of time antenna 12 by half-mould substrate integrated waveguide feed.The convenience in order to test simultaneously, one section little band gradual transition line 6 coupling is connected in form between half module substrate integrated wave guide structure and 50 ohm microstrip 8, is input port 10 at an end of half module substrate integrated wave guide.
Antenna structure is as shown in Figure 4, and the size souvenir is in Table I.Fig. 5 is the actual measurement antenna reflection coefficient, and Fig. 6-Fig. 9 representes the directional diagram of this antenna at 20GHz, 30GHz, 35GHz, 40GHz, and wherein Ex represents E face main pole directional diagram; Hx represents H face main pole directional diagram; ECo represents E hand-deliver fork polarised direction figure; Hco represents H hand-deliver fork polarised direction figure.
Table I is represented the size of embodiment 1.
Table I
The antenna physical dimension
Claims (1)
1. the broadband logarithmically periodic dipole array antenna of a half-mould substrate integrated waveguide feed, it is characterized in that this antenna comprise dielectric substrate (1), the upper surface coat of metal (2) on the dielectric substrate (1), the lower surface coat of metal (3) under the dielectric substrate (1) be positioned at substrate (1) on be connected row's plated-through hole (4) of the upper surface coat of metal (2) and the lower surface coat of metal (3); The upper surface (9) of the assembly line (5) of the logarithmically periodic dipole array antenna upper surface on the upper surface coat of metal (2), logarithmically periodic dipole array antenna upper surface feed a period of time antenna (7), half module substrate integrated wave guide, little band gradual transition line (6), output 50 ohm microstrip (8) are linked in sequence; The lower surface coat of metal (3) includes with the assembly line (11) of the logarithmically periodic dipole array antenna lower surface of the parallel symmetry of assembly line (5) of logarithmically periodic dipole array antenna upper surface, intersects logarithmically periodic dipole array antenna lower surface feed a period of time antenna (12) of symmetry, the lower surface (13) of half module substrate integrated wave guide, the ground surface (14) of microstrip line with logarithmically periodic dipole array antenna upper surface feed a period of time antenna (7);
The upper surface of half module substrate integrated wave guide (9) directly is connected with the assembly line (5) of the upper surface of logarithmically periodic dipole array antenna; The lower surface of half module substrate integrated wave guide (13) directly is connected with the assembly line (11) of the lower surface of logarithmically periodic dipole array antenna, has formed the feed structure of this antenna; Simultaneously plated-through hole (4) is on dielectric substrate (1), to offer through hole, this plated-through hole (4) be overlying on the upper surface (9) of the half module substrate integrated wave guide of dielectric substrate (1) bilateral, the lower surface (13) of half module substrate integrated wave guide couples together.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910033242XA CN101645537B (en) | 2009-06-10 | 2009-06-10 | Seminorm substrate integrated waveguide feeding bandwidth log periodic dipole array antenna |
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| CN200910033242XA CN101645537B (en) | 2009-06-10 | 2009-06-10 | Seminorm substrate integrated waveguide feeding bandwidth log periodic dipole array antenna |
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| CN101645537B true CN101645537B (en) | 2012-07-25 |
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| CN104348525B (en) * | 2013-07-31 | 2016-08-10 | 启碁科技股份有限公司 | Transmitting device and near field communication means near field communication means |
| CN114725686B (en) * | 2022-05-17 | 2024-03-12 | 安徽大学 | Logarithmic periodic antenna based on half-module rectangular metal waveguide excitation |
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| CN101026263A (en) * | 2006-02-22 | 2007-08-29 | 南京理工大学 | Substrate integrated waveguide small-sized prism type horn antenna |
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| CN101026263A (en) * | 2006-02-22 | 2007-08-29 | 南京理工大学 | Substrate integrated waveguide small-sized prism type horn antenna |
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