CN206301946U - Antenna improved structure - Google Patents
Antenna improved structure Download PDFInfo
- Publication number
- CN206301946U CN206301946U CN201621179291.6U CN201621179291U CN206301946U CN 206301946 U CN206301946 U CN 206301946U CN 201621179291 U CN201621179291 U CN 201621179291U CN 206301946 U CN206301946 U CN 206301946U
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- CN
- China
- Prior art keywords
- antenna
- reception
- transmitting
- feed
- transmitting antenna
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of antenna improved structure, primary structure includes several reception antennas and a transmitting antenna between the respectively reception antenna, respectively the reception antenna and the transmitting antenna are to link with a RF IC for it, and respectively the reception antenna is provided with a reception feeding portion respectively at bottom at the RF IC position, and the transmitting antenna is to be provided with a transmitting feeding portion in central position, those reception antennas and the transmitting antenna system integrate waveguide as string type feed-in framework with substrate, and respectively the reception antenna and the transmitting antenna are provided with several slotted eye arrays, and the transmitting antenna system integrates the transmitting antenna of waveguide string type structure for two base boards of differential mode feed-in form.Thereby, it is able to effectively reduce the influence of loss and feed-in transmission line to antenna radiation patterns.
Description
Technical field
To provide a kind of antenna, espespecially one kind can effectively reduce loss and feed-in transmission line pair to the utility model
The antenna improved structure of antenna radiation patterns influence.
Background technology
Press, due to the high development and application of the technologies such as electronics, communication, promote automobile safety system more and more general
And, wherein automobile collision avoidance radar is, using advanced communication, control and Information technology, to come detecting vehicle, pedestrian, obstacle on road
The dynamic situation of driver's surrounding objects such as thing, such as relative position, speed, acceleration message, and notify that driver adopts in good time
Requisite measure is taken, such as accelerated, slowed down or keep track, to prevent from colliding.
And with current automobile collision avoidance radar antenna for, common Antenna Design be using micro-strip line architecture string type present
Enter rectangular patch antenna, the polarised direction of this framework is for perpendicular to the ground.Because string type feed-in framework limits feed-in position, when
Dual-mode antenna need to be integrated with system board simultaneously when, Wiring architecture will reduce routing freedom because of the feed-in pattern of antenna, because
This may cause sweep, many places knuckle and transmission line mode more long must be taken to be integrated with system board, but
The complexity of cabling will influence whether antenna radiation characteristics and reduce radar system transmitting-receiving efficiency.If radar system itself is a hair
The framework of many receipts, and need the phase information for detecting echo to carry out signal treatment to judge orientation simultaneously, with cabling complexity
Its difficulty higher will be lifted, and error rate also can be improved and then.In addition, in addition to causing excess loss, it is unnecessary also to excite
Radiation so that integrated antenna field pattern deform.Therefore, most way can take thin plate, and metal is spread around transmission line
And ground plane (Coplanar Waveguide with Ground Structure) is connected to, produced with the radiation for suppressing transmission line
It is raw, but the effect of this way is limited, furthermore reduction cabling complexity is only and solves the basic of transmission beta radiation.
How to solve the problems, such as it is above-mentioned commonly use with missing, creator as of the present utility model to be engaged in the related of the industry
Manufacturer desires most ardently the direction that research improves.
Utility model content
Therefore, applicant of the present utility model, in view of above-mentioned missing, is to collect related data, assesses and examines via multi-party
Consider, and to engage in many years of experience of the industry accumulation, via constantly studying and change, the beginning is designed and this kind of can effectively reduce
The antenna improved structure that loss and feed-in transmission line influence on antenna radiation patterns.
The main purpose of the utility model first is：Reception antenna is located on a plate body jointly with transmitting antenna, is had
Effect reduces line loss, reduces cost.
The main purpose of the utility model second is：Receive feeding portion and be located at bottom with the design attitude one of transmitting feeding portion
Portion, one is located at stage casing, the influence for making it be increased routing freedom and reduce feed-in transmission line.
The main purpose of the utility model the 3rd is：Differential mode transmitting signal produced by RF IC (RFIC) is straight
Connect using differential mode two-wire line as feed-in transmitting antenna, be thereby reduced loss and feed-in transmission line to radiation field
The influence of type, and without using barron device (BALUN).
The main purpose of the utility model the 4th is：Transmitting feeding portion is integrated into waveguide located at two base boards
Among the array antenna of (Substrate-Integrated-Waveguide, SIW) string type structure grooves hole, so can be by substrate
Integrate waveguide ground structure in itself and form GSSG's (Ground Signal Signal Ground) with feed-in two-wire line
Differential-mode signal transmits line architecture, it is less susceptible to excitating surface leakage waves and is influenceed antenna radiation characteristics.
The main purpose of the utility model the 5th is：Because the feed-in direction for launching feeding portion differs 180 degree, and arrange in pairs or groups simultaneously
After RF IC (RFIC) is to the differential-mode signal output of transmitting antenna, two base boards can be made to integrate waveguide string type structure grooves
Hole array antenna turns into mutually exciting and having greatest irradiation in front, to meet field pattern needed for Anticollision Radar application.
The technical scheme that the utility model can reach above-mentioned purpose is：A kind of antenna improved structure, including：Several receptions
Antenna and a transmitting antenna between the respectively reception antenna, respectively the reception antenna and the transmitting antenna are and a radio frequency collection for it
Link into circuit, and respectively the reception antenna is provided with a reception feeding portion respectively at bottom at the RF IC position,
And the transmitting antenna is to be provided with a transmitting feeding portion in central position, those reception antennas and the transmitting antenna system are whole with substrate
Multiplex is led as string type feed-in framework, and respectively the reception antenna and the transmitting antenna are provided with several slotted eye arrays, and the hair
Penetrate aerial system and include the slot antenna that the substrate that two is differential mode feed-in form integrates waveguide string type structure.
Using above-mentioned technology, can be directed to commonly use existing for antenna when simultaneously dual-mode antenna needs to be integrated with system plate body
When, Wiring architecture will reduce the free degree of wiring because of the feed-in pattern of antenna, and the complexity for connecting up also is influenced whether
Antenna radiation characteristics and reduce the transmitting-receiving efficiency of radar system, and error rate can be lifted.The technical program is except improving extra damage
Consumption is outer, can also avoid exciting unnecessary surface leakage ripple and be broken through be directed to the problem points that integrated antenna field pattern deforms.
Brief description of the drawings
Fig. 1 is the floor map of the utility model preferred embodiment.
Fig. 2 is the implementation schematic diagram of the utility model preferred embodiment.
Fig. 3 is the detecting schematic diagram of the utility model preferred embodiment.
Wherein：Antenna, A；Vehicle, B；RF IC, 1；Reception antenna, 2；Receive feeding portion, 21；Transmitting antenna,
3；Slot antenna, 31；Slotted eye array, 311；Transmitting feeding portion, 32；Plate body, 4.
Specific embodiment
To reach above-mentioned purpose and effect, technological means and construction that the utility model is used, now with reference to the accompanying drawings with regard to this
Its feature of utility model preferred embodiment elaborate is as follows with function, understands completely in order to profit.
Refer to shown in Fig. 1 to Fig. 3, antenna A systems include：
One RF IC 1；
Several reception antennas 2 for being provided with a reception feeding portion 21 at the position of RF IC 1 respectively at bottom,
It is to be linked with the RF IC 1, and the reception antenna 2 is to integrate waveguide as string type feed-in framework with substrate, and should
Reception antenna 2 is provided with several slotted eye arrays；
One transmitting antenna 3 linked between the respectively reception antenna 2 and with the RF IC 1, the transmitting antenna 3
System integrates waveguide as string type feed-in framework with substrate, and the transmitting antenna 3 includes the base that two is differential mode feed-in form
Plate integrates the slot antenna 31 of waveguide string type structure, and slot antenna 31 has several staggered slotted eye arrays 311.And should
Transmitting antenna 3 is provided with a transmitting feeding portion 32 in central position；
One for setting the plate body 4 of the RF IC 1, the respectively reception antenna 2 and the transmitting antenna 3.
In addition, transmitting antenna 3 is differential mode feed-in form, and feed-in two-wire line is provided with interior, is integrated with using substrate
Waveguide ground structure in itself forms GSSG (Ground Signal Signal Ground) differential mode with the feed-in two-wire line
Signal transmission line framework.
Therefore, it is able to effectively reduce the influence of loss and feed-in transmission line to antenna radiation patterns, and can presents
Go out the radiation characteristic of the utility model antenna body, for lifting automobile anti-collision radar system identification efficiency.Additionally, by radio frequency collection
Differential-mode signal is directly sent to transmitting antenna 3 and feed-in is come by feed-in transmission line, transmitting feeding portion 32 respectively into circuit 1 and launch day
Two base boards of line 3 integrate the slot antenna 31 of waveguide string type structure, thus the barron device that need not be commonly used design.And again
Because the feed-in direction for launching feeding portion 32 differs 180 degree, can so make two-way slot antenna 31 as same mutually exciting before just
There is greatest irradiation side, to meet field pattern needed for automobile collision avoidance radar application.Furthermore, because reception antenna 2 sets jointly with transmitting antenna 3
In on a plate body 4, be able to effectively reduce line loss, reduces cost.In addition, because transmitting feeding portion 32 located at slot antenna 31 it
In, ground structure forms GSSG differential-mode signals transmission coil holder with feed-in two-wire line in itself thereby can to integrate waveguide by substrate
Structure, makes it be less susceptible to excitating surface leakage waves and influence antenna radiation patterns.
In this way, when the utility model is arranged on vehicle B, excellent thunder can be made for car side visual dead angles scope
Up to identification capability.
The foregoing is only preferred embodiment of the present utility model, it is non-therefore limit to patent model of the present utility model
Enclose, therefore such as with the simple modification carried out by the utility model specification and schema content and equivalent structure change, all should be similarly
It is contained in the scope of the claims of the present utility model.
Claims (4)
1. a kind of antenna improved structure, including：Several reception antennas and a transmitting antenna between the respectively reception antenna, its
Respectively the reception antenna and the transmitting antenna are to link with a RF IC, and respectively the reception antenna respectively at bottom is neighbouring should
A reception feeding portion is provided with RF IC position, and the transmitting antenna is to be provided with a transmitting feed-in in central position
Portion, it is characterised in that：Those reception antennas and the transmitting antenna system integrate waveguide as string type feed-in framework with substrate, and respectively
The reception antenna and the transmitting antenna are provided with several slotted eye arrays, and the transmitting antenna system includes two for differential mode feed-in shape
The substrate of formula integrates the slot antenna of waveguide string type structure.
2. antenna improved structure as claimed in claim 1, it is characterised in that：System is provided with feed-in Double wire transmission in transmitting antenna
Line, GSSG differential-mode signals transmission coil holder is formed to integrate waveguide ground structure in itself using substrate with the feed-in two-wire line
Structure.
3. antenna improved structure as claimed in claim 1, it is characterised in that：Antenna improved structure is respectively on the string type antenna
Slotted eye array is the setting that is staggered respectively.
4. antenna improved structure as claimed in claim 1, it is characterised in that：The antenna improved structure respectively reception antenna and transmitting
Antenna is to be co-located on a plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621179291.6U CN206301946U (en) | 2016-10-27 | 2016-10-27 | Antenna improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621179291.6U CN206301946U (en) | 2016-10-27 | 2016-10-27 | Antenna improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206301946U true CN206301946U (en) | 2017-07-04 |
Family
ID=59202284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621179291.6U Expired - Fee Related CN206301946U (en) | 2016-10-27 | 2016-10-27 | Antenna improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206301946U (en) |
-
2016
- 2016-10-27 CN CN201621179291.6U patent/CN206301946U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170704 Termination date: 20181027 |