CN209266579U - Broadside vertical masonry joint medium integrates Waveguide slot antenna - Google Patents
Broadside vertical masonry joint medium integrates Waveguide slot antenna Download PDFInfo
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- CN209266579U CN209266579U CN201821901600.5U CN201821901600U CN209266579U CN 209266579 U CN209266579 U CN 209266579U CN 201821901600 U CN201821901600 U CN 201821901600U CN 209266579 U CN209266579 U CN 209266579U
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Abstract
The utility model discloses a kind of broadside vertical masonry joint media to integrate Waveguide slot antenna, and radiating slot metal layer and ground metal layer are printed on microwave-medium plate upper and lower faces respectively；By radiating slot metal layer, microwave-medium plate, ground metal layer and waveguide metal via hole, a Rectangular Waveguide Structure is collectively formed, coaxial port is located at the center of rectangular waveguide, it is penetrated on seam metal layer again and is arranged with slot antenna unit along rectangular waveguide length direction center line sequence, field tuning metallization VIA is located at slot antenna unit center edge, and alternately placed in unilateral side, to form the bilateral symmetry waveguiding structure centered on coaxial feed port；The utility model integrates the design scheme that waveguide broadside center opens vertical masonry joint, uses imitative coaxial feed in conjunction with short circuit disturbance via hole, waveguide core bottom by using medium, it realizes under the premise of guaranteeing antenna array radiation efficiency, beam position characteristic, millimeter wave array antenna difficulty of processing is reduced, and makes it easy to carry out two-dimensional expansion composition array.
Description
Technical field
The utility model relates to a kind of broadside vertical masonry joint media to integrate Waveguide slot antenna, belong to antenna microwave technology.
Background technique
The target acquisition radar for working in E wave band needs the radiating antenna of high-gain, is especially being directed to intelligent driving
In terms of the Anticollision Radar of application.Traditionally this kind of antenna is all made of the form of microstrip antenna group battle array, but aerial loss is larger, and
The edge feeding classification that microstrip antenna uses also will increase parasitic radiation.To improve radiation efficiency, can further be stitched using waveguide
Gap antenna, but only several millimeters of E band wavelength, this requires the radiating guide based on metal structure to need to meet very high machining accuracy
It is required that cost is difficult to bear.In recent years, on microwave printed board construct medium integrated waveguide (SIW) become take into account performance and at
This suitable scheme, one side structure is simple, while also close to conventional metals waveguide in performance.It designs on this basis
SIW slot antenna is very suitable for the application of inexpensive millimeter wave antenna array.
More research is carried out in terms of SIW both at home and abroad, has been chiefly used in substituting conventional waveguide in millimeter wave band.It is constructing
In terms of waveguide antenna array, there is the design using standing wave array, such as bibliography (S.Cheng, H.Yousef and
H.Kratz, “79GHz Slot Antennas Based on Substrate Integrated Waveguides(SIW)in
a Flexible Printed Circuit Board,”IEEE Trans.Antennas and Propagation,Vol.57,
No.1, pp.64-71, Jan.2009.) designed by SIW Waveguide slot antenna, work in E wave band, radiated using center-biased
Structure.The feed of this kind of radiating guide, which is all made of, to be turned micro-strip at waveguide edge and carries out feed form, the advantage is that structure more
Simply.But disadvantage be due to using edge feed, need preferably control Waveguide slot between amplitude and phase distribution with
Guarantee its side normal direction emission requirements, which increase Waveguide slot amplitudes, phase symmetry design difficulty；Microstrip line at the same time
Larger parasitic radiation can be also introduced, and then influences the radiation characteristic of aerial array；In addition, need along waveguide length direction into
Row array extension is in application, due to microstrip-fed occupancy portion size, so that being unable to satisfy along microstrip feed line direction array element spacing
Less than the requirement of 1 wavelength required for group battle array.Therefore it also needs to study under the premise of guaranteeing electrical property, be presented by using bottom
Electric form inhibits parasitic radiation to improve each gap amplitude, phase symmetry.
Utility model content
In view of the above problems, the utility model provides a kind of integrated Waveguide slot antenna of broadside vertical masonry joint medium, this is practical
It is novel by using medium integrate waveguide broadside center open vertical masonry joint, in conjunction with short circuit disturbance via hole, waveguide core bottom using imitative same
The broadside vertical masonry joint medium of axis feed integrates Waveguide slot antenna design scheme, realizes and is guaranteeing antenna array radiation efficiency, wave beam
Under the premise of directional property, millimeter wave array antenna difficulty of processing is reduced, and makes it easy to carry out two-dimensional expansion composition array.
In order to solve problem above, the utility model adopts the technical scheme that a kind of broadside vertical masonry joint medium integrates wave
Lead slot antenna, which is characterized in that radiating slot metal layer, microwave-medium plate, ground metal layer, waveguide metal via hole, impedance
Tune metallization VIA, coaxial port, slot antenna unit, field tuning metallization VIA and feed metal via hole.
The radiating slot metal layer and ground metal layer are printed on microwave-medium plate upper and lower faces respectively；By radiating slot gold
Belong to layer, microwave-medium plate, ground metal layer and the waveguide metal via hole by processing through-hole and realization of metallizing, is collectively formed
One Rectangular Waveguide Structure, referred to as rectangular waveguide；Coaxial port is located at the center of rectangular waveguide, and metallization VIA setting exists
Rectangular waveguide surrounding；Rectangular dielectric waveguide after electromagnetic energy feed-in respectively along arranged on left and right sides is transmitted.
On the radiating slot metal layer, slot antenna unit is formed by microwave printed board etch process, for realizing
The radiation of electromagnetic energy；Near slot antenna unit center position, passes through processing through-hole and metallize and realize that field tunes metal
Change via hole, forms radiation for disturbing the magnetic distribution on slot antenna unit；Slot antenna unit is along rectangular waveguide length
Direction center line sequence arranges, while field tuning metallization VIA is located at slot antenna unit center edge, and hands in unilateral side
For placement, to form the bilateral symmetry waveguiding structure centered on coaxial port.The coaxial port inner core passes through feed metal
Change via hole and be connected to microwave-medium plate, outer core is then connected with ground metal layer, realizes 50 ohm of port match.
The radiating slot metal layer and ground metal layer are 18 microns of thick copper foils.
To meet waveguide performance requirement, electromagnetic leakage is reduced, waveguide metal via hole used in the rectangular waveguide is mutual
Between spacing be less than rectangular waveguide waveguide wavelength 1/6, the diameter dimension of waveguide metal via hole was then greater than pitch of holes
1/4。
To meet radiance requirement, the length of slot antenna unit is the 3/10~1/2 of working frequency space wavelength,
The distance between opposite field tuning metallization VIA is the 1/20~1/5 of rectangular waveguide waveguide wavelength；Two slot antenna lists
The spacing at first center is the 1/2 of rectangular waveguide waveguide wavelength, while waveguide two sides most marginal slot antenna cell distance edge
Spacing between waveguide metal via hole is the 1/4 of rectangular waveguide waveguide wavelength, to guarantee that antenna element meets same-phase feature.
To meet the Performance Match between waveguide and 50 ohm of coaxial port, two sides increase impedance near coaxial port
Metallization VIA is tuned, impedance-tumed metallization VIA bottom is connected with ground metal layer, it is symmetric on center line,
Its height dimension is about the 1/2~3/4 of microwave-medium plate overall thickness；Impedance-tumed metallization VIA center and coaxial center are fed
The spacing of metallization VIA is then 0.1~0.3 waveguide wavelength.
The utility model has the advantages that broadside vertical masonry joint medium provided by the utility model integrate Waveguide slot antenna, broadside open vertical masonry joint add it is short
Road disturbs via hole, waveguide core bottom using the design scheme for imitating coaxial feed, so that antenna has broadband, low section and height
Efficiency feature, and make it easy to carry out two-dimensional expansion composition array.When it works in millimeter wave band simultaneously, it can be greatly lowered
Millimeter wave array antenna difficulty of processing reduces cost of manufacture.
Detailed description of the invention
Fig. 1 is that broadside vertical masonry joint medium integrates Waveguide slot antenna structural side view；
Fig. 2 is that broadside vertical masonry joint medium integrates Waveguide slot antenna structure top view；
Fig. 3 is that broadside vertical masonry joint medium integrates Waveguide slot antenna embodiment port standing wave curve.
Fig. 4 is that broadside vertical masonry joint medium integrates Waveguide slot antenna embodiment antenna pattern curve.
Specific embodiment
It is further elaborated below with reference to the utility model.
As shown in Figure 1, 2, the utility model provides a kind of integrated Waveguide slot antenna of broadside vertical masonry joint medium, radiating slot gold
Belong to layer 1, microwave-medium plate 2, ground metal layer 3, waveguide metal via hole 4, impedance-tumed metallization VIA 5, coaxial port 6,
Slot antenna unit 7, field tuning metallization VIA 8 and feed metal via hole 9.
The radiating slot metal layer 1 and ground metal layer 3 are generally 18 microns of thick copper foils, are printed on microwave-medium respectively
2 upper and lower faces of plate；By radiating slot metal layer 1, microwave-medium plate 2, ground metal layer 3 and pass through processing through-hole and the reality that metallizes
An approximate rectangular waveguiding structure, referred to as rectangular waveguide is collectively formed in existing waveguide metal via hole 4；Coaxial port 6 is located at square
The center of shape waveguide, metallization VIA 4 are arranged in rectangular waveguide surrounding；Respectively along left and right two after electromagnetic energy feed-in
The rectangular dielectric waveguide of side is transmitted；To meet waveguide performance requirement, electromagnetic leakage is reduced, which is used
The mutual spacing of waveguide metal via hole 4 should be less than the 1/6 of rectangular waveguide waveguide wavelength, waveguide metal via hole 4
Diameter dimension was then greater than the 1/4 of pitch of holes.
On the radiating slot metal layer 1, slot antenna unit 7 is formed by microwave printed board etch process, for real
The radiation of existing electromagnetic energy；In 7 near center location of slot antenna unit, passes through processing through-hole and metallize and realize field tuning gold
Categoryization via hole 8 forms radiation for disturbing the magnetic distribution on slot antenna unit 7；Slot antenna unit 7 is along rectangular waveguide
Length direction center line sequence arranges, while field tuning metallization VIA 8 is located at 7 center edge of slot antenna unit, and
Unilateral side is alternately placed, to form the bilateral symmetry waveguiding structure centered on coaxial port 6；To meet radiance requirement, slot
The length of shape antenna element 7 is the 3/10~1/2 of working frequency space wavelength, between opposite field tuning metallization VIA
Distance is the 1/20~1/5 of rectangular waveguide waveguide wavelength；The spacing of two slot antenna unit centers is rectangular waveguide waveguide wave
Long 1/2, while the spacing between the most marginal slot antenna cell distance edge waveguide metallization VIA of waveguide two sides is square
The 1/4 of shape waveguide wavelength, to guarantee that antenna element meets same-phase feature.
6 inner core of coaxial port is connected to microwave-medium plate 2 by feed metal via hole 9, and outer core is then golden with ground connection
Belong to layer 3 to be connected, realizes 50 ohm of port match.To meet the Performance Match between waveguide and 50 ohm of coaxial port, same
Nearby two sides increase impedance-tumed metallization VIA 5, impedance-tumed 5 bottom of metallization VIA and ground metal layer 3 for shaft end mouthful 6
It is connected, is symmetric on center line, height dimension is about the 1/2~3/4 of 2 overall thickness of microwave-medium plate；Impedance tune
The spacing of humorous 5 center of metallization VIA and coaxial center feed metal via hole 9 is then 0.1~0.3 waveguide wavelength.
The unit 8 broadside vertical masonry joint medium of the utility model building integrates Waveguide slot antenna and selects following parameter: the antenna
Working frequency range is 77.6-80.4GHz, and it is 2.2 that microwave-medium plate 2, which selects dielectric constant, after optimization, the material that overall thickness is 0.384mm
Material；7 length of waveguide flute profile antenna element is 1.284mm, and field tunes metallization VIA 8 and 7 center spacing of slot antenna unit
0.24mm；Cell spacing 1/2 is configured by the waveguide wavelength 3.355mm of rectangular waveguide, the diameter of waveguide metal via hole 4
For 0.2mm, mutual spacing 0.362mm；Impedance-tumed metallization VIA 5 and coaxial center feed metal via hole 9
Spacing is 0.34mm.
The port standing wave simulation result of the present embodiment as shown in figure 3, its standing wave less than 2 corresponding to impedance bandwidth about
2.8GHz, Fig. 4 illustrate the main polarization and Cross polarization pattern of high, medium and low three Frequency points.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change
It also should be regarded as the protection scope of the utility model into deformation.
Claims (5)
1. a kind of broadside vertical masonry joint medium integrates Waveguide slot antenna, which is characterized in that radiating slot metal layer (1), microwave-medium plate
(2), ground metal layer (3), waveguide metal via hole (4), impedance-tumed metallization VIA (5), coaxial port (6), flute profile day
Line unit (7), field tuning metallization VIA (8) and feed metal via hole (9)；
The radiating slot metal layer (1) and ground metal layer (3) are printed on microwave-medium plate (2) upper and lower faces respectively；By radiating
Metal layer (1), microwave-medium plate (2), ground metal layer (3) and waveguide metal via hole (4) are stitched, a rectangular wave is collectively formed
Guide structure, referred to as rectangular waveguide；Coaxial port (6) is located at the center of rectangular waveguide, and metallization VIA (4) is arranged in rectangle
Waveguide surrounding；
The radiating slot metal layer (1) is equipped with slot antenna unit (7)；In slot antenna unit (7) near center location
Metallization VIA (8) are tuned equipped with field；Slot antenna unit (7) is arranged along rectangular waveguide length direction center line sequence, simultaneously
Tuning metallization VIA (8) is located at slot antenna unit (7) center edge, and alternately places in unilateral side, thus formation with
Bilateral symmetry waveguiding structure centered on coaxial port (6)；
Coaxial port (6) inner core is connected to microwave-medium plate (2) by feed metal via hole (9), outer core then with ground connection
Metal layer (3) is connected.
2. broadside vertical masonry joint medium according to claim 1 integrates Waveguide slot antenna, which is characterized in that the radiating slot gold
Belong to layer (1) and ground metal layer (3) is 18 microns of thick copper foils.
3. broadside vertical masonry joint medium according to claim 1 integrates Waveguide slot antenna, which is characterized in that the rectangular waveguide
The mutual spacing of used waveguide metal via hole (4) is less than the 1/6 of rectangular waveguide waveguide wavelength, waveguide metal mistake
The diameter dimension in hole (4) was then greater than the 1/4 of pitch of holes.
4. broadside vertical masonry joint medium according to claim 1 integrates Waveguide slot antenna, which is characterized in that the slot antenna
The length of unit (7) is between the 3/10~1/2 of working frequency space wavelength, with opposite field tuning metallization VIA (8)
Distance is the 1/20~1/5 of rectangular waveguide waveguide wavelength；The spacing at two slot antenna unit (7) centers is rectangular waveguide waveguide
The 1/2 of wavelength, while the most marginal slot antenna unit (7) in waveguide two sides, between edge waveguide metallization VIA (4)
Spacing be rectangular waveguide waveguide wavelength 1/4.
5. broadside vertical masonry joint medium according to claim 1 integrates Waveguide slot antenna, which is characterized in that in coaxial port
(6) nearby two sides increase impedance-tumed metallization VIA (5), impedance-tumed metallization VIA (5) bottom and ground metal layer
(3) it is connected, is symmetric on center line, height dimension is about the 1/2~3/4 of microwave-medium plate (2) overall thickness；Resistance
The spacing of anti-tuning metallization VIA (5) center and coaxial center feed metal via hole (9) is then 0.1~0.3 waveguide wave
It is long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821901600.5U CN209266579U (en) | 2018-11-19 | 2018-11-19 | Broadside vertical masonry joint medium integrates Waveguide slot antenna |
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| CN201821901600.5U CN209266579U (en) | 2018-11-19 | 2018-11-19 | Broadside vertical masonry joint medium integrates Waveguide slot antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110808480A (en) * | 2019-11-13 | 2020-02-18 | 西安天安电子科技有限公司 | Fuselage conformal phased-array antenna |
| CN111916910A (en) * | 2020-09-03 | 2020-11-10 | 上海无线电设备研究所 | Substrate integrated waveguide slot antenna |
| CN114759362A (en) * | 2022-04-29 | 2022-07-15 | 中国电子科技集团公司第十四研究所 | Long-slit array antenna with two-dimensional scanning capability |
-
2018
- 2018-11-19 CN CN201821901600.5U patent/CN209266579U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110808480A (en) * | 2019-11-13 | 2020-02-18 | 西安天安电子科技有限公司 | Fuselage conformal phased-array antenna |
| CN111916910A (en) * | 2020-09-03 | 2020-11-10 | 上海无线电设备研究所 | Substrate integrated waveguide slot antenna |
| CN114759362A (en) * | 2022-04-29 | 2022-07-15 | 中国电子科技集团公司第十四研究所 | Long-slit array antenna with two-dimensional scanning capability |
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