CN108110420A - A kind of millimetre-wave radar antenna house - Google Patents
A kind of millimetre-wave radar antenna house Download PDFInfo
- Publication number
- CN108110420A CN108110420A CN201711352802.9A CN201711352802A CN108110420A CN 108110420 A CN108110420 A CN 108110420A CN 201711352802 A CN201711352802 A CN 201711352802A CN 108110420 A CN108110420 A CN 108110420A
- Authority
- CN
- China
- Prior art keywords
- antenna house
- radar
- antenna
- wave
- shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005855 radiation Effects 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000005670 electromagnetic radiation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
- H01Q1/421—Means for correcting aberrations introduced by a radome
Landscapes
- Details Of Aerials (AREA)
Abstract
The present invention provides a kind of millimetre-wave radar antenna houses, positioned at the top of the radar body of transmitting radar wave, including antenna house body layer, the both sides up and down of antenna house body layer are equipped with antenna house shape-imparting layer, the upper plane of the antenna house shape-imparting layer and antenna house body layer, lower plane contact respectively, and with the one side that antenna house body layer is in contact be plane, opposite side is then figuration face.The millimetre-wave radar antenna house of the present invention has installed shape-imparting layer additional, so that the thickness of antenna house, there is no the limitations of half-wavelength or its integral multiple, therefore, antenna house thickness can arbitrarily adjust thickness on the basis of not less than half-wavelength, solve the problems, such as that thickness design freedom is not high when traditional millimeter wave antenna covers on 77GHz frequency ranges；In addition, by installing shape-imparting layer additional, hence it is evident that reduce reflected energy during radar wave oblique incidence so that the radar wave energy on oblique incidence antenna house surface can more penetrate antenna house, effectively reduce reflection, so as to reduce the influence to antenna radiation pattern.
Description
Technical field
The present invention relates to a kind of antenna house, more particularly to a kind of millimetre-wave radar antenna house.
Background technology
In automatic Pilot in the industry, millimetre-wave radar sensor is because its moderate cost, environmental suitability are strong and remote
Detectivity is preferably and as one of mainstream detection sensor.The working frequency range of vehicle-mounted millimeter wave Radar Products includes at present
24GHz and 77GHz.Wherein, to go deep into product development in the industry, the cost of 77GHz frequency range series of products constantly reduces, and its
Advantage small, that detection range is remote becomes increasingly conspicuous, thus become vehicle-mounted millimeter wave radar from now on main direction of studying it
One.
One of the main accessories of antenna house as radar, effect are protection antennas, prevent environment from working radar antenna
The influence and interference of state.It can be said that antenna house is of equal importance with antenna.It is same meeting antenna house antenna protection being acted on
When, it is desirable that influence of the antenna house to the electromagnetic radiation characteristic of antenna is minimum, is always the groundwork of radome research and development.
Traditional antenna cover is in order to reduce the influence to antenna electromagnetic radiation performance, generally according to radar wave vertical incidence antenna
The condition of cover is analyzed, and the thickness of antenna house is arranged to the half-wavelength of working frequency.Antenna house is to vertical incidence at this time
Reflection of radar wave it is minimum.But in trailer-mounted radar field, working frequency range centre frequency is up to 77GHz, is much higher than traditional milli
The working frequency of metre wave radar.When using the thickness of half-wavelength again at this time, antenna house thickness is often even more thin for 1mm, at this time
No matter from the point of view of processing technology or mechanical strength, all it is difficult to meet product demand, but when increasing thickness, antenna
Covering the influence to the electromagnetic radiation characteristic of antenna can substantially increase again.
In addition, traditional antenna cover thickness using the application range of half-wavelength (or its integral multiple) is vertically entered for radar wave
Penetrate, if but the antenna beam of 77GHz radars it is wider when, the incident angle of radar wave is larger, causes the radar for having suitable energy
Ripple oblique incidence antenna house surface, the antenna house of half-wavelength thickness is stronger to the reflection of these oblique incidence energy, to antenna radiation pattern
It is affected.
The content of the invention
In order to overcome the above problem, the present invention is intended to provide a kind of millimetre-wave radar antenna house, so that antenna house thickness is set
Degree of freedom height is counted, and the radar wave of broad-angle-incident is enable to penetrate antenna house.
The present invention provides a kind of millimetre-wave radar antenna house, positioned at the top of the radar body of transmitting radar wave, including
One antenna house body layer, which is characterized in that the both sides up and down of the antenna house body layer are equipped with antenna house shape-imparting layer, the antenna
Cover shape-imparting layer contacts respectively with plane, lower plane on antenna house body layer, and is with the one side that antenna house body layer is in contact
Plane, opposite side are then figuration face.
Preferably, the thickness d of the vertical direction of the antenna house shape-imparting layer is：D=(2k+1) λ/(4 (ε2-sin2θ)0.5),
Wherein, d is the thickness of shape-imparting layer, and k is nonnegative real number, and λ is radar wave in the air of Antenna Operation center frequency point
Wavelength, ε2For the dielectric constant of shape-imparting layer, θ is the incident angle of the radar wave emitted by radar body.
Preferably, the antenna house shape-imparting layer carries out figuration in a dimension of horizontal plane respectively.
Preferably, the antenna house shape-imparting layer all carries out figuration in two dimensions of horizontal plane.
Preferably, the antenna house shape-imparting layer and the relation of the antenna house body layer dielectric constant are shown below：
ε2=(ε1)0.5,
Wherein, ε1For the dielectric constant of antenna house body layer, ε2For the dielectric constant of antenna house shape-imparting layer.
Preferably, the antenna house body layer includes a ceiling plate portion and the support portion extended downwardly from ceiling plate portion both sides, institute
State support portion bottom align with the outer rim of the radar body and against.
Preferably, the central point in the figuration face of the antenna house shape-imparting layer on the downside of the antenna house body layer and radar body
Spacing is the half-wavelength or its integral multiple of radar wave.
Preferably, the radar body is an antenna pcb board, which is provided with series fed antenna.
The present invention compared with prior art the advantages of be：
The millimetre-wave radar antenna house of the present invention has installed shape-imparting layer additional so as to the thickness of antenna house there is no half-wavelength or
Therefore the limitation of its integral multiple, is ensureing that antenna house is smaller simultaneously on the influence of radar antenna electromagnetic performance, antenna house thickness exists
Not less than can arbitrarily adjust thickness on the basis of half-wavelength, solves thickness when traditional millimeter wave antenna covers on 77GHz frequency ranges
The problem of design freedom is not high；In addition, by installing shape-imparting layer additional, hence it is evident that reduce reflected energy during radar wave oblique incidence, make
Antenna house can more be penetrated by obtaining the radar wave energy on oblique incidence antenna house surface, reflection be effectively reduced, so as to reduce to day
The influence of line directional diagram.
Description of the drawings
Fig. 1 is the cross-sectional view of millimetre-wave radar antenna house according to a preferred embodiment of the present invention；Fig. 2 is
The cross-sectional view of the antenna house body layer of millimetre-wave radar antenna house as shown in Figure 1；
Fig. 3 is the cross-sectional view of the antenna house shape-imparting layer of millimetre-wave radar antenna house as shown in Figure 1；
Fig. 4 is the schematic top plan view of the antenna pcb board of millimetre-wave radar antenna house as shown in Figure 1；
Fig. 5 is that Antenna Far Field directional diagram compares figure in the case of different antennae cover.
Specific embodiment
Below in conjunction with the accompanying drawings, presently preferred embodiments of the present invention is provided, and is described in detail, makes to be better understood when this hair
Bright function, feature.
As shown in Figure 1, be 77GHz millimetre-wave radars antenna house 10 according to a preferred embodiment of the present invention, the day
Irdome 10 is located at the top of the radar body 4 of transmitting radar wave, including an antenna house body layer 2 and arranged on the antenna house body layer
The antenna house shape-imparting layer 1,3 of about 2 both sides.Preferably, the radar body 4 is antenna pcb board.
The concrete structure of antenna house body layer 2 including ceiling plate portion 21 and from ceiling plate portion both sides as shown in Fig. 2, extend downwardly
Support portion 22, the bottom of support portion 22 align with the outer rim of the radar body 4 and against so that ceiling plate portion 21 passes through support portion
22 are spaced apart with radar body 4.The thickness of ceiling plate portion 21 can be determined according to requirements such as structural manufacturing process.The both sides up and down of ceiling plate portion 21
It is respectively provided with horizontal upper plane 211, lower plane 212.
Fig. 1 is referred to again, and the height (i.e. 22 bottom of support portion to the length between lower plane 212) of support portion 22 is radar
The half-wavelength of ripple or its integral multiple add the wall thickness of 3 central spot of shape-imparting layer of 2 downside of antenna house body layer, to ensure following article
The central point in figuration face 31 (as shown in Figure 3) of antenna house shape-imparting layer 3 of 2 downside of antenna house body layer and antenna PCB
The spacing of plate 4 is the half-wavelength or its integral multiple of radar wave.According to the principle of open resonator, because metal ground surface is formed by force
System short circuit, the spacing of antenna cover inner surface and pcb board is so set to can consider can between antenna house lower surface and metal ground
Form the stationary field of back wave.Therefore, as long as controlling the integral multiple that spacing described above is half-wavelength, it is possible to be assigned in antenna house
The downside of shape layer 3 also forms the most weak state of electric field, therefore maximizes the reflection for weakening antenna pcb board, and it is anti-to reduce antenna pcb board
Penetrate influence of the energy to antenna radiation pattern.
Antenna house shape-imparting layer 1,3 is respectively overlay in the upper plane 211 of the ceiling plate portion 21 of antenna house body layer 2, lower plane 212
On.Antenna house shape-imparting layer 1,3 act as figuration, and figuration of the present invention refers to the figuration of antenna cover structure, i.e., in main body
Layer is only made on the basis of simple geometry, and provides specific shape from the antenna house shape-imparting layer 1,3 to antenna cover structure
Shape, reduce all angles incidence reflected energy so that add the directional diagram after antenna house with add antenna house before it is basically identical.At this
In embodiment, the structure of antenna house shape-imparting layer 1,3 is as shown in Figure 3.The antenna house shape-imparting layer 1,3 is upper with antenna house body layer 2
Plane 211, lower plane 212 contact respectively, and are plane with the one side that antenna house body layer is in contact, and opposite side is then figuration
Face 11,31.Wherein, the relational expression of the thickness and radar wave incident angle on the vertical direction of shape-imparting layer is shown below：
D=(2k+1) λ/(4 (ε2-sin2θ)0.5) (1)
Wherein, d is the thickness of shape-imparting layer 1,3, and k is nonnegative real number, and λ is air of the radar wave in Antenna Operation center frequency point
Medium wavelength, ε2For the dielectric constant of shape-imparting layer 1,3, θ be the radar wave emitted by radar body 4 incident angle (radar wave
Radiate the geometric center position that source point is series fed antenna 41 shown in FIG. 1 in the present embodiment).
In addition, in order to generally keep the shape of the array pattern of series fed antenna 41, shape-imparting layer 1,3 is respectively in horizontal plane
A dimension on carry out figuration, i.e., using the thickness and radar of shape-imparting layer as described above in a dimension of horizontal plane
The relational expression of ripple incident angle, and thickness is constant in another dimension because for car radar this application scenarios we
It is primarily upon carrying out the directional diagram situation of this dimension of figuration.In addition, if using other antenna form, it is necessary to pay close attention to two
If the antenna radiation pattern of dimension, according to the antenna radiation pattern of radar body, can also in two dimensions of horizontal plane all into
Row figuration.
Millimetre-wave radar antenna house is by installing shape-imparting layer additional as a result, so as to the thickness of antenna house there is no half-wavelength or
Therefore the limitation of its integral multiple, is ensureing that antenna house is smaller simultaneously on the influence of radar antenna electromagnetic performance, antenna house thickness exists
Not less than can arbitrarily adjust thickness on the basis of half-wavelength, solves thickness when traditional millimeter wave antenna covers on 77GHz frequency ranges
The problem of design freedom is not high.
According to antireflection layer principle, in order to realize the anti-reflection of antenna house, antenna house shape-imparting layer and antenna house body layer dielectric are normal
Several relations are shown below：
ε2=(ε1)0.5 (2)
Wherein, ε1For the dielectric constant of antenna house body layer, ε2For the dielectric constant of antenna house shape-imparting layer.
The structure of radar body 4 is as shown in figure 4, the preferably antenna pcb board of radar body 4, which is provided with series feed day
Line 41.
For 77GHz millimetre-wave radars, respective antenna cover half-wavelength thickness should be 1mm or so.But processing technology and
Requirement of mechanical strength is difficult to ensure that entire radome reaches such thickness.If meeting mechanical strength and technological requirement, antenna house
Thickness takes 3.5mm, and obtained Antenna Far Field directional diagram is shown in Fig. 5 dotted lines, wherein Fig. 5 abscissas is antenna radiation pattern corresponding angles
Degree, ordinate are antenna radiation pattern gain.The directional diagram of antenna is compared to the reason without antenna house representated by Fig. 5 solid lines at this time
Think for situation antenna radiation pattern, deteriorate apparent.If install the figuration of 0.5mm or so additional to antenna house body layer cover board interior outside
Layer (as shown in Figure 3), then antenna radiation pattern (Fig. 5 chain-dotted lines) improve in ± 60 ° substantially so that oblique incidence antenna house surface
Radar wave energy can more penetrate antenna house, effectively reduce reflection, so as to reduce the influence to antenna radiation pattern,.
It is above-described, it is only presently preferred embodiments of the present invention, is not limited to the scope of the present invention, of the invention is upper
Stating embodiment can also make a variety of changes.What i.e. every claims and description according to the present patent application were made
Simply, equivalent changes and modifications falls within the claims of patent of the present invention.The not detailed description of the present invention is
Routine techniques content.
Claims (8)
1. a kind of millimetre-wave radar antenna house (10), positioned at the top of the radar body (4) of transmitting radar wave, including antenna house master
Body layer (2), which is characterized in that the both sides up and down of the antenna house body layer (2) are equipped with antenna house shape-imparting layer (1,3), the day
The upper plane (211) of irdome shape-imparting layer (1,3) and antenna house body layer (2), lower plane (212) contact respectively, and and antenna house
The one side that body layer (2) is in contact is plane, and opposite side is then figuration face (11,31).
2. millimetre-wave radar antenna house according to claim 1, which is characterized in that the antenna house shape-imparting layer (1,3)
The thickness d of vertical direction is：
D=(2k+1) λ/(4 (ε2-sin2θ)0.5),
Wherein, d is the thickness of shape-imparting layer (1,3), and k is nonnegative real number, and λ is radar wave in the air of Antenna Operation center frequency point
Wavelength, ε2For the dielectric constant of shape-imparting layer (1,3), θ is by the incident angle of the radar wave of radar body (4) transmitting.
3. millimetre-wave radar antenna house according to claim 2, which is characterized in that the antenna house shape-imparting layer (1,3) point
Figuration is not carried out in a dimension of horizontal plane.
4. millimetre-wave radar antenna house according to claim 2, which is characterized in that the antenna house shape-imparting layer (1,3) exists
Figuration is all carried out in two dimensions of horizontal plane.
5. the millimetre-wave radar antenna house according to claim 3 or 4, which is characterized in that the antenna house shape-imparting layer (1,3)
It is shown below with the relation of antenna house body layer (2) dielectric constant：
ε2=(ε1)0.5,
Wherein, ε1For the dielectric constant of antenna house body layer (2), ε2For the dielectric constant of antenna house shape-imparting layer (1,3).
6. millimetre-wave radar antenna house according to claim 1, which is characterized in that the antenna house body layer (2) includes
One ceiling plate portion (21) and the support portion (22) extended downwardly from ceiling plate portion (21) both sides, the bottom of the support portion (22) with it is described
Radar body (4) outer rim alignment and against.
7. millimetre-wave radar antenna house according to claim 1, which is characterized in that on the downside of the antenna house body layer (2)
Antenna house shape-imparting layer (3) figuration face (31) central point and radar body (4) spacing for the half-wavelength of radar wave or its
Integral multiple.
8. millimetre-wave radar antenna house according to claim 1, which is characterized in that the radar body (4) is a day
Line pcb board which is provided with series fed antenna (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711352802.9A CN108110420A (en) | 2017-12-15 | 2017-12-15 | A kind of millimetre-wave radar antenna house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711352802.9A CN108110420A (en) | 2017-12-15 | 2017-12-15 | A kind of millimetre-wave radar antenna house |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108110420A true CN108110420A (en) | 2018-06-01 |
Family
ID=62217417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711352802.9A Pending CN108110420A (en) | 2017-12-15 | 2017-12-15 | A kind of millimetre-wave radar antenna house |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108110420A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066080A (en) * | 2018-08-07 | 2018-12-21 | 维沃移动通信有限公司 | A kind of antenna house, antenna structure and radio-based electronic devices |
| CN110336129A (en) * | 2019-07-15 | 2019-10-15 | 上海矽杰微电子有限公司 | A kind of antenna house of millimetre-wave radar |
| CN110770973A (en) * | 2018-11-30 | 2020-02-07 | 深圳市大疆创新科技有限公司 | Antenna cover, radar and mobile device |
| CN111446547A (en) * | 2020-05-25 | 2020-07-24 | 上海载德信息科技股份有限公司 | Antenna housing and millimeter wave radar device |
| CN111505586A (en) * | 2019-01-16 | 2020-08-07 | 联发科技股份有限公司 | Radar sensor housing package |
| CN111740211A (en) * | 2019-03-25 | 2020-10-02 | 华为技术有限公司 | Antenna housing and base station antenna |
| CN112751186A (en) * | 2019-10-31 | 2021-05-04 | 奥迪股份公司 | Radome for a radar sensor of a motor vehicle and motor vehicle |
| CN113950775A (en) * | 2020-03-24 | 2022-01-18 | 康普技术有限责任公司 | Base station antenna with active antenna module and related apparatus and methods |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4003057A1 (en) * | 1990-02-02 | 1991-08-08 | Telefunken Systemtechnik | Vehicular radar detector integrated into rear-view mirror - is metallised in segments on rear surface for transmission of microwaves and reception of echoes |
| US20130002514A1 (en) * | 2011-06-30 | 2013-01-03 | Fredric Paul Ziolkowski | Multi-band, broadband, high angle sandwich radome structure |
| CN103004017A (en) * | 2010-07-30 | 2013-03-27 | 丰田自动车株式会社 | Antenna cover |
| CN106887694A (en) * | 2017-04-25 | 2017-06-23 | 江苏亨鑫科技有限公司 | To the integral antenna cover of directional diagram figuration |
| CN207572526U (en) * | 2017-12-15 | 2018-07-03 | 华域汽车系统股份有限公司 | A kind of millimetre-wave radar antenna house |
-
2017
- 2017-12-15 CN CN201711352802.9A patent/CN108110420A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4003057A1 (en) * | 1990-02-02 | 1991-08-08 | Telefunken Systemtechnik | Vehicular radar detector integrated into rear-view mirror - is metallised in segments on rear surface for transmission of microwaves and reception of echoes |
| CN103004017A (en) * | 2010-07-30 | 2013-03-27 | 丰田自动车株式会社 | Antenna cover |
| US20130002514A1 (en) * | 2011-06-30 | 2013-01-03 | Fredric Paul Ziolkowski | Multi-band, broadband, high angle sandwich radome structure |
| CN106887694A (en) * | 2017-04-25 | 2017-06-23 | 江苏亨鑫科技有限公司 | To the integral antenna cover of directional diagram figuration |
| CN207572526U (en) * | 2017-12-15 | 2018-07-03 | 华域汽车系统股份有限公司 | A kind of millimetre-wave radar antenna house |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066080A (en) * | 2018-08-07 | 2018-12-21 | 维沃移动通信有限公司 | A kind of antenna house, antenna structure and radio-based electronic devices |
| CN109066080B (en) * | 2018-08-07 | 2022-03-04 | 维沃移动通信有限公司 | Antenna housing, antenna structure and wireless electronic equipment |
| CN110770973A (en) * | 2018-11-30 | 2020-02-07 | 深圳市大疆创新科技有限公司 | Antenna cover, radar and mobile device |
| WO2020107378A1 (en) * | 2018-11-30 | 2020-06-04 | 深圳市大疆创新科技有限公司 | Radome, radar, and movable device |
| CN111505586A (en) * | 2019-01-16 | 2020-08-07 | 联发科技股份有限公司 | Radar sensor housing package |
| CN111740211A (en) * | 2019-03-25 | 2020-10-02 | 华为技术有限公司 | Antenna housing and base station antenna |
| CN110336129A (en) * | 2019-07-15 | 2019-10-15 | 上海矽杰微电子有限公司 | A kind of antenna house of millimetre-wave radar |
| CN112751186A (en) * | 2019-10-31 | 2021-05-04 | 奥迪股份公司 | Radome for a radar sensor of a motor vehicle and motor vehicle |
| CN113950775A (en) * | 2020-03-24 | 2022-01-18 | 康普技术有限责任公司 | Base station antenna with active antenna module and related apparatus and methods |
| CN111446547A (en) * | 2020-05-25 | 2020-07-24 | 上海载德信息科技股份有限公司 | Antenna housing and millimeter wave radar device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108110420A (en) | A kind of millimetre-wave radar antenna house | |
| US10680318B2 (en) | Antenna apparatus | |
| EP3040736B1 (en) | Radar antenna assembly with panoramic detection | |
| EP2599162B1 (en) | Antenna cover | |
| Ettorre et al. | Single-folded leaky-wave antennas for automotive radars at 77 GHz | |
| US20200287293A1 (en) | Slot array antenna including parasitic features | |
| US7298333B2 (en) | Patch antenna element and application thereof in a phased array antenna | |
| KR20100118889A (en) | Antenna with metamaterial superstrate simultaneosly providing high-gain and beam-width control | |
| US20190288383A1 (en) | Antenna device | |
| KR101673200B1 (en) | Microstrip patch array radar antenna for heavy equipment vehicle | |
| EP3267530B1 (en) | Antenna device | |
| CN207572526U (en) | A kind of millimetre-wave radar antenna house | |
| US11133600B2 (en) | Spatial feeding end-fire array antenna based on electromagnetic surface technologies | |
| Gil-Martinez et al. | Metasurface antenna for fast frequency scanning with application to conical direction finding | |
| CN108400440A (en) | A kind of wide angle antenna house and antenna assembly suitable for vehicle-mounted millimeter wave radar | |
| CN111129760B (en) | Millimeter wave continuous transverse branch antenna array for atmospheric turbulence signal detection | |
| Futatsumori et al. | Design and measurement of W-band offset stepped parabolic reflector antennas for airport surface foreign object debris detection radar systems | |
| CN108511922B (en) | Multi-beam high-directivity three-side included angle reflector antenna based on super surface | |
| KR101833038B1 (en) | A vehicle radar antenna system for preventing collision | |
| CN103779663B (en) | Double frequency cross polarization high-isolation electromagnetic horn | |
| Shabalin et al. | Millimeter-wave phased antenna array for automotive radar | |
| Huang et al. | An array of two periodic leaky-wave antennas with sum and difference beam scanning for application in target detection and tracking | |
| Matsuzawa et al. | Influence of resin cover on antenna gain for automotive millimeter wave radar | |
| CN111585020B (en) | Omnidirectional scanning monopole end-fire array antenna of horizontal wave beam | |
| KR102223094B1 (en) | Direction detecting antenna using horn antenna and radome attached antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180601 |
|
| WD01 | Invention patent application deemed withdrawn after publication |