CN206211023U - A kind of broadband millimeter-wave Waveguide slot antenna of use double-paraboloid cylinder feed - Google Patents
A kind of broadband millimeter-wave Waveguide slot antenna of use double-paraboloid cylinder feed Download PDFInfo
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- CN206211023U CN206211023U CN201621244054.3U CN201621244054U CN206211023U CN 206211023 U CN206211023 U CN 206211023U CN 201621244054 U CN201621244054 U CN 201621244054U CN 206211023 U CN206211023 U CN 206211023U
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Abstract
The utility model is related to a kind of broadband millimeter-wave Waveguide slot antenna of use double-paraboloid cylinder feed, including radiating layer and the transmission network network layers being arranged on below radiating layer, the radiating layer is made up of upper and lower two pieces of metallic plates (1,2) and the metal parabolic cylinder (21,22) being arranged between upper and lower two pieces of metallic plates (1,2) both sides, multiple metal coverings are set between upper and lower two pieces of metallic plates (1,2) so as to be divided into multiple rectangular waveguides, radiating slot is provided with each waveguide；Transmission network network layers are made up of upper and lower two pieces of metallic plates (3,4) and the metal parabolic cylinder (41,42) being arranged between upper and lower two pieces of metallic plates (3,4) both sides, and feeding network is provided between upper and lower two pieces of metallic plates (3,4).Antenna of the present utility model, simplifies feeding network, reduces cost；Feed bandwidth has been widened, radiation efficiency has been improved；Simple structure, it is easy to use.
Description
Technical field
The utility model belongs to antenna technical field, and in particular to a kind of broadband millimeter-wave of use double-paraboloid cylinder feed
Waveguide slot antenna.
Background technology
With the continuous breakthrough of microwave technology, its application is gradually to diversification and higher frequency section development, a significant change
Change is to involve Terahertz frequency range to millimeter to develop, and is progressively applied, used as the critical component antenna of millimeter-wave systems, face
Face new challenge and technical difficulty.It is mainly reflected in：1st, in millimeter wave frequency band, conductor losses and dielectric loss will than low frequency
Microstrip antenna that is much bigger, such as being commonly used in low frequency, because the loss of feeder line is very serious, microstrip antenna is difficult the larger battle array of composition
Row, the efficiency of whole antenna is not also high.So, the millimeter wave antenna for how designing high radiation efficiency turns into a problem；2、
The requirement of low profile antenna, many application fields now, either radar still communicate, be intended to that antenna size is small and height
It is low.Originally efficient reflector antenna cannot meet requirement；3rd, the requirement of broad-band antenna, in millimeter wave frequency band, various applications are all
It is broadband system, it is necessary to antenna is also with relative bandwidth higher, and the conventional aperture-coupled bandwidth of Waveguide slot antenna
Narrower, it is difficult to meet and require, although work(point feed broader bandwidth, complex structure, design difficulty are big.
Utility model content
For design difficulty present in prior art and requirement, the utility model provides a kind of using the feedback of double-paraboloid cylinder
The broadband millimeter-wave Waveguide slot antenna of electricity, has widened feed width, simplifies feeding network, improves radiation efficiency.
To achieve the above objectives, the technical solution adopted in the utility model is：There is provided a kind of using double-paraboloid cylinder feed
Broadband millimeter-wave Waveguide slot antenna, including radiating layer and the transmission network network layers that are arranged on below radiating layer, the radiating layer
It is made up of upper and lower two pieces of metallic plates and the metal parabolic cylinder being arranged between upper and lower two pieces of metallic plate both sides, upper and lower two blocks of metals
Multiple metal coverings are set between plate so as to be divided into multiple rectangular waveguides, radiating slot is provided with each waveguide；Transmission network network layers by
Upper and lower two pieces of metallic plates and the metal parabolic cylinder being arranged between upper and lower two pieces of metallic plate both sides are constituted, upper and lower two pieces of metallic plates
Between be provided with feeding network.
Further, the feeding network includes feed waveguide and is arranged on the H faces loudspeaker of feed waveguide both sides, two H faces
Loudspeaker are connected by T-shaped power splitter with feed waveguide.
Further, between the lower metallic plate of radiating layer and its both sides metal parabolic cylinder and transmission network network layers upper metal
It is equipped with the couple electromagnetic energy of following transmission network network layers to the gap of radiating layer between plate and its both sides metal parabolic cylinder.
Further, multiple radiating slots are opened up along the longitudinal axis in each waveguide, each radiating slot is rectangular aperture.
Further, multiple radiating slots are respectively positioned at the both sides of waveguide core line, interlaced arrangement, and longitudinally adjacent two radiation
At a distance of half waveguide wavelength between seam.
Further, the focal length of two metal parabolic cylinderes of radiating layer differs 1/4 wavelength, to meet electromagnetic energy difference
Must identical requirement by being coupled to each radiating element phase after metal parabolic dish.
Further, two radiation port faces of H faces loudspeaker are located at two focal points of metal parabolic cylinder respectively.
Further, two metal parabolic cylinderes difference phase of two metal parabolic cylinderes of radiating layer and transmission network network layers
Connect, and the metal parabolic cylinder focal length being connected is equal.
Advantageous Effects of the present utility model are：
(1) the utility model simplifies feeding network using the antenna of double-paraboloid cylinder feed, reduces cost；Widen
Feed wideband, improves radiation efficiency；
(2) simple structure, it is easy to use, and in whole frequency band, wave beam is not inclined；
(3) may be used on millimetre-wave radar field.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model antenna；
Fig. 2 is the structural representation of radiating layer；
Fig. 3 is the structural representation of transmission network network layers；
Fig. 4 is return loss plot；
Fig. 5 is antenna radiation efficiency figure；
Fig. 6 is antenna radiation pattern.
In figure：
1st, metallic plate 5- feed waveguides 21,22,41,42- metals parabolic cylinder 23,29- under the upper metallic plates 2,3- of 4-
Radiating slot 24,25,26- metal coverings 27,28,43,44- gaps 51,52-H faces loudspeaker
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in further detail.
As shown in figure 1, being the broadband millimeter-wave Waveguide slot day of the use double-paraboloid cylinder feed that the utility model is provided
Line, the antenna includes upper and lower two-layer, and upper strata is radiating layer, and lower floor is transmission network network layers.
As shown in Fig. 2 being radiating layer of the present utility model, the radiating layer is by upper metallic plate 1, lower metallic plate 2 and sets
Metal parabolic cylinder 21 and metal parabolic cylinder 22 between upper metallic plate 1 and the lower both sides of metallic plate 2 are constituted.Upper metallic plate 1
Multiple metal coverings 24,25,26 are placed between lower metallic plate 2, radiating layer is divided into multiple rectangular waveguides by multiple metal coverings, often
Rectangular radiation seam 23,29 is opened up along the longitudinal axis in individual waveguide, radiating slot 23 is located at the both sides of waveguide core line with radiating slot 29 respectively,
At a distance of half waveguide wavelength between interlaced arrangement, and longitudinally adjacent two radiating slots.In order to improve radiation efficiency, in each waveguide
Multiple radiating slots are set, so as to constitute radiant array antenna.In addition, lower metallic plate 2 and both sides metals parabolic cylinder 21,22 it
Between have gap 27,28, this gap can be the couple electromagnetic energy of following transmission network network layers to radiating layer.
As shown in figure 3, being transmission network network layers of the present utility model, the transmission network network layers are by lower metallic plate 3, upper metallic plate 4
And be arranged on lower metallic plate 3, the metal parabolic cylinder 41 of the both sides of upper metallic plate 4, metal parabolic cylinder 42 and constitute.Lower metallic plate
Feeding network is provided between 3 and upper metallic plate 4, the feeding network includes feed waveguide 5, is arranged on the H faces of the both sides of feed waveguide 5
Loudspeaker 51,52, two H faces 51 physical dimensions of loudspeaker are identical, can be connected with feed waveguide 5 by a T-shaped power splitter.
Wherein, the radiation port face of H faces loudspeaker 51 is located at the focal point of metal parabolic cylinder 41, the radiation port of H faces loudspeaker 52
Face is located at the focal point of metal parabolic cylinder 42, and the effect of the two metal parabolic cylinderes is the spherical wave H faces loudspeaker radiation
Complanation ripple.The focal length of metal parabolic cylinder 51,52 differs 1/4 wavelength, is thrown by metal respectively with meeting electromagnetic energy
Each radiating element phase is coupled to after thing cylindrical surface for reflection must identical requirement.Upper metallic plate 4 and metal parabolic cylinder 41,42
Between have gap 43,44, this gap can be the couple electromagnetic energy of following transmission network network layers to radiating layer.
In addition, metal parabolic cylinder 21 is connected with metal parabolic cylinder 41, and focal length is equal, metal parabolic cylinder 22 with
Metal parabolic cylinder 42 is connected, and focal length is equal.The lower metallic plate 2 of radiating layer is connected with the upper metallic plate 4 of transmission network network layers.
The course of work of the broadband millimeter-wave Waveguide slot antenna of the utility model double-paraboloid cylinder feed is as follows：Feed-in
Electromagnetic energy encourages two H faces loudspeaker 51,52 to be radiated to both sides respectively by T-shaped power splitter, and the electromagnetic wave of radiation is thrown through metal
Thing cylinder 41,42 is reflected again by the slot-coupled between metallic plate 4 in metal parabolic cylinder 41,42 and transmission network network layers to spoke
Layer is penetrated, is radiated finally by the rectangular aperture of radiating layer.
Illustrated by taking the Waveguide slot antenna of ka wave bands as an example below：
As shown in figure 4, return loss, the return loss with -13dB is reference point, covers 23.6GHz-25.6GHz, bandwidth
2GHz.Thus illustrate, antenna of the present utility model, with wide.
As shown in figure 5, being radiation efficiency, radiation efficiency is both greater than 70% in whole bandwidth, reaches as high as 84%.Thus say
Bright, antenna of the present utility model, radiation efficiency is high.
As shown in fig. 6, centered on directional diagram after frequency normalizing.Wherein solid line is H faces directional diagram, its first minor level
Value is less than 17dB, and dotted line is E faces directional diagram, and its first minor level value is less than 18dB.
The utility model is not limited to above-mentioned specific using the broadband millimeter-wave Waveguide slot antenna that double-paraboloid cylinder feeds
Implementation method, those skilled in the art draw other implementation methods according to the technical solution of the utility model, also belong to this reality
With new technological innovation scope.
Claims (8)
1. a kind of broadband millimeter-wave Waveguide slot antenna of use double-paraboloid cylinder feed, including radiating layer and radiating layer is arranged on
Following transmission network network layers, it is characterized in that：The radiating layer is by upper and lower two pieces of metallic plates (1,2) and is arranged on upper and lower two blocks of metals
Metal parabolic cylinder (21,22) between plate (1,2) both sides is constituted, and multiple metals are set between upper and lower two pieces of metallic plates (1,2)
Face is provided with radiating slot so as to be divided into multiple rectangular waveguides in each waveguide；Transmission network network layers are by upper and lower two pieces of metallic plates (3,4)
And the metal parabolic cylinder (41,42) being arranged between upper and lower two pieces of metallic plates (3,4) both sides is constituted, upper and lower two pieces of metallic plates
Feeding network is provided between (3,4).
2. the broadband millimeter-wave Waveguide slot antenna that a kind of use double-paraboloid cylinder as claimed in claim 1 feeds, its feature
It is：The feeding network includes feed waveguide (5) and is arranged on the H faces loudspeaker (51,52) of feed waveguide (5) both sides, two H faces
Loudspeaker (51,52) are connected by T-shaped power splitter with feed waveguide (5).
3. the broadband millimeter-wave Waveguide slot antenna that a kind of use double-paraboloid cylinder as claimed in claim 1 or 2 feeds, it is special
Levying is：Between the lower metallic plate (2) of radiating layer and its both sides metal parabolic cylinder (21,22) and transmission network network layers upper metal
It is equipped with the couple electromagnetic energy of following transmission network network layers to spoke between plate (4) and its both sides metal parabolic cylinder (41,42)
Penetrate the gap of layer.
4. the broadband millimeter-wave Waveguide slot antenna that a kind of use double-paraboloid cylinder as claimed in claim 3 feeds, its feature
It is：Multiple radiating slots are opened up along the longitudinal axis in each waveguide, each radiating slot is rectangular aperture.
5. the broadband millimeter-wave Waveguide slot antenna that a kind of use double-paraboloid cylinder as claimed in claim 4 feeds, its feature
It is：Multiple radiating slots are located at the both sides of waveguide core line respectively, at a distance of half between interlaced arrangement, and longitudinally adjacent two radiating slots
Individual waveguide wavelength.
6. the broadband millimeter-wave Waveguide slot antenna that a kind of use double-paraboloid cylinder as claimed in claim 5 feeds, its feature
It is：The focal length of two metal parabolic cylinderes of radiating layer (21,22) differs 1/4 wavelength.
7. the broadband millimeter-wave Waveguide slot antenna that a kind of use double-paraboloid cylinder as claimed in claim 6 feeds, its feature
It is：Two radiation port faces of H faces loudspeaker are located at two focal points of metal parabolic cylinder (41,42) respectively.
8. the broadband millimeter-wave Waveguide slot antenna that a kind of use double-paraboloid cylinder as claimed in claim 7 feeds, its feature
It is：Two metal parabolic cylinderes of radiating layer (21,22) and transmission network network layers two metal parabolic cylinderes (41,42) are respectively connected with,
And connected metal parabolic cylinder focal length is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621244054.3U CN206211023U (en) | 2016-11-18 | 2016-11-18 | A kind of broadband millimeter-wave Waveguide slot antenna of use double-paraboloid cylinder feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621244054.3U CN206211023U (en) | 2016-11-18 | 2016-11-18 | A kind of broadband millimeter-wave Waveguide slot antenna of use double-paraboloid cylinder feed |
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| Publication Number | Publication Date |
|---|---|
| CN206211023U true CN206211023U (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621244054.3U Active CN206211023U (en) | 2016-11-18 | 2016-11-18 | A kind of broadband millimeter-wave Waveguide slot antenna of use double-paraboloid cylinder feed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659698A (en) * | 2018-11-26 | 2019-04-19 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Cylindrical Conformal slot array antenna radiates traveling-wave phase control method between battle array |
-
2016
- 2016-11-18 CN CN201621244054.3U patent/CN206211023U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659698A (en) * | 2018-11-26 | 2019-04-19 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Cylindrical Conformal slot array antenna radiates traveling-wave phase control method between battle array |
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