CN108258437A - A kind of CTS slot antennas using parabolic cylinder couple feed - Google Patents
A kind of CTS slot antennas using parabolic cylinder couple feed Download PDFInfo
- Publication number
- CN108258437A CN108258437A CN201711371131.0A CN201711371131A CN108258437A CN 108258437 A CN108258437 A CN 108258437A CN 201711371131 A CN201711371131 A CN 201711371131A CN 108258437 A CN108258437 A CN 108258437A
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- Prior art keywords
- parabolic cylinder
- waveguide
- metallic plate
- transmission network
- metal
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
- H01Q13/0233—Horns fed by a slotted waveguide array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
Abstract
The present invention relates to a kind of CTS slot antennas using parabolic cylinder couple feed, the transmission network network layers of radiating layer and lower floor including upper strata, radiating layer includes parallel-plate waveguide, positioned at parallel-plate waveguide side upper strata metal parabolic cylinder and be arranged on multiple radiators on parallel-plate waveguide surface；Transmission network network layers include transmission network network layers metallic plate main body, transmission network network layers metallic plate main body is equipped with feed waveguide, feed waveguide connects electromagnetic horn, the side of transmission network network layers metallic plate main body is equipped with lower metal parabolic cylinder, and transmission network network layers metallic plate main body is equipped with a series of feeds and couples gap.The antenna technology simplifies feeding network, has widened feed bandwidth, and profile is relatively low, and radiation efficiency is higher, which has larger advantage in millimeter wave field, can be applied to millimetre-wave radar, the communications field.
Description
Technical field
The present invention relates to be related to millimeter wave antenna technical field, especially a kind of CTS using parabolic cylinder couple feed
(Continuous Transverse Stub) slot antenna.
Background technology
With the breakthrough of constantly bringing forth new ideas of Microwave New Techniques, new process, using more and more extensive.Also result in frequency spectrum resource
It is more and more crowded, it is necessary to high band resource to be developed, so millimeter involves Terahertz frequency range and is developed rapidly, as millimeter wave
The antenna of system core component, faces new challenges and technical difficulty.Its major embodiment the following aspects:
1st, in millimeter wave frequency band, various losses such as conductor losses and dielectric loss ratio low frequency is much greater, and antenna is caused to be imitated
Rate reduces.Such as in the common microstrip antenna of low frequency, since the loss of feeder line is very serious, microstrip antenna is difficult the larger battle array of composition
Row, the gain of entire antenna be not also high.
2nd, the requirement of low profile antenna, present many application fields, either radar still communicate, and are intended to antenna size
Small and height is low.Originally efficient reflector antenna can not be met the requirements.
3rd, the requirement of broad-band antenna, in millimeter wave frequency band, various applications are all broadband systems, antenna are needed also to have higher
Relative bandwidth, and traditional Waveguide slot antenna narrower bandwidth is difficult to meet the requirements, and feed network structures are complicated, design,
Difficulty of processing is big.
Invention content
The purpose of the present invention is to solve defects of the existing technology, provide a kind of using parabolic cylinder couple feed
CTS slot antennas.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of CTS slot antennas using parabolic cylinder couple feed, the transmission network of radiating layer and lower floor including upper strata
Network layers, the radiating layer include parallel-plate waveguide, positioned at parallel-plate waveguide side upper strata metal parabolic cylinder and be arranged on
Multiple radiators on parallel-plate waveguide surface；
The transmission network network layers include transmission network network layers metallic plate main body, and transmission network network layers metallic plate main body is equipped with feed
Waveguide, feed waveguide connection electromagnetic horn, the side of transmission network network layers metallic plate main body are equipped with lower metal parabolic cylinder, feed
Network layer metal plate body is equipped with a series of feeds and couples gap.
Further, the parallel-plate waveguide is enclosed by the first metallic plate, the first metal side plate and upper strata metal parabolic cylinder
Into.
Further, the transmission network network layers metallic plate main body is by metal side plate, metal base plate, the second metallic plate and lower floor
Metal parabolic cylinder surrounds, and the feed waveguide and electromagnetic horn are located on metal base plate, metal base plate and first metal
Plate is mutually parallel and corresponds to.
Further, the upper-lower position of upper strata metal parabolic cylinder and lower metal parabolic cylinder corresponds and focal length phase
Deng.
Further, multiple radiators are located at the surface of the first metallic plate, and radiator is T-shaped radiator, and the two of T-shaped radiator
Side carries radiating slot, and middle part extends with coupling gap, the width direction of radiating slot towards radiating layer, the coupling of T-shaped radiator
Joint close gap to radiating slot, and radiate the couple electromagnetic energy in parallel-plate waveguide.
Further, multiple radiators are placed to form gap in the first-class pitch period in length surface direction of the first metallic plate
Array antenna, between adjacent radiation body between be divided into 1 free space wavelength, the spacing between the both sides radiating slot of radiator is
0.5 free space wavelength.
Further, the electromagnetic horn is H faces loudspeaker, and the radiation port face of H faces loudspeaker is located at lower floor's throwing of transmission network network layers
The focal point of object cylinder.
Further, a series of feeds in the transmission network network layers metallic plate main body couple gap close to lower metal parabolic
Cylinder and in radioactivity arrange, radioactivity arrangement track radian it is consistent with the radian of lower metal parabolic cylinder, feed couple
Energy is coupled to from transmission network network layers metallic plate main body in parallel-plate waveguide in gap.
Further, the signal in feed waveguide reflects to form cylindrical wave by lower metal parabolic cylinder.
Further, the radiating layer and transmission network network layers are mutually fastened and connected to form entirety, upper strata metal parabolic cylinder with
Lower metal parabolic cylinder is connected with each other.
Beneficial effects of the present invention are：The antenna technology simplifies feeding network, has widened feed bandwidth, and profile compared with
Low, radiation efficiency is higher, which has larger advantage in millimeter wave field, can be applied to millimetre-wave radar, communication
Field.
Description of the drawings
Fig. 1 is the antenna structure view of the present invention；
Fig. 2 is the radiation layer structure diagram of the present invention；
Fig. 3 is the transmission network network layers structure diagram of the present invention；
Fig. 4 is the return loss plot of the present invention；
Fig. 5 is the antenna radiation efficiency figure of the present invention；
Fig. 6 is the antenna radiation pattern of the present invention.
Specific embodiment
The present invention is described in further detail with specific embodiment with reference to the accompanying drawings of the specification.
As shown in Figure 1 to Figure 3, a kind of CTS slot antennas using parabolic cylinder couple feed, the radiating layer including upper strata
1 and the transmission network network layers 2 of lower floor, radiating layer 1 includes parallel-plate waveguide 11, and the upper strata metal positioned at 11 side of parallel-plate waveguide is thrown
Object cylinder 12, metallic plate 15 and the multiple radiators 13 for being arranged on 11 surface of parallel-plate waveguide；
Further, parallel-plate waveguide 11 is by the first metallic plate 14, the first metal side plate 15 and upper strata metal parabolic cylinder
12 surround.
Multiple radiators 13 are located at the surface of the first metallic plate 14, and multiple radiators 13 are long on the surface of the first metallic plate 14
Degree the first-class pitch period in direction place to form CTS slot array antennas, between adjacent radiation body 13 between be divided into 1 free space
Wavelength, radiator 13 are T-shaped radiator, and with radiating slot 131, middle part carries coupling gap 132 for the both sides of T-shaped radiator,
Spacing between the both sides radiating slot 131 of radiator 13 is 0.5 free space wavelength, and radiating slot 131 is towards radiating layer 1
Width direction extends, and the coupling gap 132 of T-shaped radiator is the couple electromagnetic energy in parallel-plate waveguide 11 to radiating slot
131, and radiate.
Transmission network network layers 2 include transmission network network layers metallic plate main body 21, feed waveguide 22 and loudspeaker day connected to it
Line 23, wherein, electromagnetic horn 23 is H faces loudspeaker, and the radiation port face of H faces loudspeaker is located at lower floor's parabolic cylinder of transmission network network layers 2
24 focal point.
For transmission network network layers metallic plate main body 21 by metal side plate 26, metal base plate 28, the second metallic plate 27 and lower floor are golden
Belong to parabolic cylinder 24 to surround, feed waveguide 22 and electromagnetic horn 23 are located on metal base plate 28,28 and first metal of metal base plate
Plate 14 is mutually parallel and corresponds to, wherein, the upper-lower position of upper strata metal parabolic cylinder 12 and lower metal parabolic cylinder 24 is mutual
Corresponding and focal length is equal.Signal in feed waveguide 22 reflects to form cylindrical wave by parabolic cylinder 24.
Further, a series of coupling gaps 25 are provided on the second metallic plate 27, these coupling gaps are thrown close to lower metal
Object cylinder 24 and in radioactivity arrange, radioactivity arrangement track radian it is consistent with the radian of lower metal parabolic cylinder 24, present
It is electrically coupled gap 25 to be coupled to energy in parallel-plate waveguide 11 from transmission network network layers metallic plate main body 21, radiating layer 1 and feedback
Power grid network layers 2 are mutually fastened and connected to form entirety, and upper strata metal parabolic cylinder 12 is connected with each other with lower metal parabolic cylinder 24.
As the case study on implementation of the present invention, we devise the CTS slot antennas of ka wave bands.Fig. 4 return losses,
Using the return loss of -10dB as reference point, 23GHz-26GHz, bandwidth 3GHz are covered.Fig. 5 is radiation efficiency, spoke in whole bandwidth
It penetrates efficiency and is both greater than 70% port, reach as high as 85%.Directional diagram centered on Fig. 6 after the normalizing of frequency.
The antenna technology simplifies feeding network, has widened feed bandwidth, and profile is relatively low, and radiation efficiency is higher, should
Antenna technology has larger advantage in millimeter wave field, can be applied to millimetre-wave radar, the communications field.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technology
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of CTS slot antennas using parabolic cylinder couple feed, the feeding network of radiating layer and lower floor including upper strata
Layer, which is characterized in that the radiating layer include parallel-plate waveguide, positioned at parallel-plate waveguide side upper strata metal parabolic cylinder with
And it is arranged on multiple radiators on parallel-plate waveguide surface；
The transmission network network layers include transmission network network layers metallic plate main body, and transmission network network layers metallic plate main body is equipped with feed wave
It leads, feed waveguide connection electromagnetic horn, the side of transmission network network layers metallic plate main body is equipped with lower metal parabolic cylinder, transmission network
Network layers metal plate body is equipped with a series of feeds and couples gap.
A kind of 2. CTS slot antennas using parabolic cylinder couple feed according to claim 1, which is characterized in that institute
Parallel-plate waveguide is stated to be surrounded by the first metallic plate, the first metal side plate and upper strata metal parabolic cylinder.
A kind of 3. CTS slot antennas using parabolic cylinder couple feed according to claim 2, which is characterized in that institute
Transmission network network layers metallic plate main body is stated to be surrounded by metal side plate, metal base plate, the second metallic plate and lower metal parabolic cylinder,
The feed waveguide and electromagnetic horn are located on metal base plate, and metal base plate is mutually parallel and corresponding with first metallic plate.
4. a kind of CTS slot antennas using parabolic cylinder couple feed according to claim 3, which is characterized in that on
The upper-lower position of layer metal parabolic cylinder and lower metal parabolic cylinder corresponds and focal length is equal.
5. a kind of CTS slot antennas using parabolic cylinder couple feed according to claim 3, which is characterized in that more
A radiator is located at the surface of the first metallic plate, and radiator is T-shaped radiator, and the both sides of T-shaped radiator carry radiating slot, in
Portion extends with coupling gap, the width direction of radiating slot towards radiating layer, and the coupling gap of T-shaped radiator is parallel-plate waveguide
In couple electromagnetic energy to radiating slot, and radiate.
6. a kind of CTS slot antennas using parabolic cylinder couple feed according to claim 5, which is characterized in that more
A radiator is placed to form slot array antenna in the first-class pitch period in length surface direction of the first metallic plate, adjacent radiation
It is divided into 1 free space wavelength between body, the spacing between the both sides radiating slot of radiator is 0.5 free space wave
It is long.
A kind of 7. CTS slot antennas using parabolic cylinder couple feed according to claim 1, which is characterized in that institute
Electromagnetic horn is stated as H faces loudspeaker, the radiation port face of H faces loudspeaker is located at the focal point of lower floor's parabolic cylinder of transmission network network layers.
A kind of 8. CTS slot antennas using parabolic cylinder couple feed according to claim 1, which is characterized in that institute
It is arranged close to lower metal parabolic cylinder and in radioactivity in a series of feeds coupling gap stated in transmission network network layers metallic plate main body
Cloth, the radian of radioactivity arrangement track is consistent with the radian of lower metal parabolic cylinder, and feed coupling gap will be measured from feed
It is coupled in parallel-plate waveguide in network layer metal plate body.
A kind of 9. CTS slot antennas using parabolic cylinder couple feed according to claim 1, which is characterized in that feedback
Signal in electric waveguide reflects to form cylindrical wave by lower metal parabolic cylinder.
A kind of 10. CTS slot antennas using parabolic cylinder couple feed according to claim 1, which is characterized in that institute
It states radiating layer to be mutually fastened and connected to form entirety with transmission network network layers, upper strata metal parabolic cylinder and lower metal parabolic cylinder phase
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711371131.0A CN108258437A (en) | 2017-12-19 | 2017-12-19 | A kind of CTS slot antennas using parabolic cylinder couple feed |
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|---|---|---|---|
| CN201711371131.0A CN108258437A (en) | 2017-12-19 | 2017-12-19 | A kind of CTS slot antennas using parabolic cylinder couple feed |
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| CN108258437A true CN108258437A (en) | 2018-07-06 |
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| CN201711371131.0A Pending CN108258437A (en) | 2017-12-19 | 2017-12-19 | A kind of CTS slot antennas using parabolic cylinder couple feed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492248A (en) * | 2019-08-06 | 2019-11-22 | 北京凌波微步信息技术有限公司 | A kind of multi-beam slot antenna using parabolic cylinder couple feed |
| CN110768018A (en) * | 2019-10-17 | 2020-02-07 | 中国航空工业集团公司洛阳电光设备研究所 | Series feed type CTS antenna with parabolic box antenna as feed source |
| WO2022147387A1 (en) * | 2020-12-29 | 2022-07-07 | Waymo Llc | Low elevation sidelobe antenna with fan-shaped beam |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492248A (en) * | 2019-08-06 | 2019-11-22 | 北京凌波微步信息技术有限公司 | A kind of multi-beam slot antenna using parabolic cylinder couple feed |
| CN110768018A (en) * | 2019-10-17 | 2020-02-07 | 中国航空工业集团公司洛阳电光设备研究所 | Series feed type CTS antenna with parabolic box antenna as feed source |
| WO2022147387A1 (en) * | 2020-12-29 | 2022-07-07 | Waymo Llc | Low elevation sidelobe antenna with fan-shaped beam |
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