CN102290638B - Anti-collision 77GHz millimeter wave radar antenna for automobile - Google Patents
Anti-collision 77GHz millimeter wave radar antenna for automobile Download PDFInfo
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- CN102290638B CN102290638B CN2011101756489A CN201110175648A CN102290638B CN 102290638 B CN102290638 B CN 102290638B CN 2011101756489 A CN2011101756489 A CN 2011101756489A CN 201110175648 A CN201110175648 A CN 201110175648A CN 102290638 B CN102290638 B CN 102290638B
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Abstract
The invention relates to an anti-collision radar antenna for an automobile, in particular to an anti-collision 77GHz millimeter wave radar antenna for the automobile, and belongs to the technical field of radar. A way of combining an antenna and lenses is adopted. The radar antenna consists of a lens support plate, a microwave circuit support plate, a plurality of dielectric lenses, a transmission antenna, a plurality of receiving antennae and corresponding wireless transmission and reception control modules, wherein the wireless transmission and reception control module integrates a transmission control module and a reception control module; the transmission antenna is a single wide-beam antenna; the reception antenna is a multi-beam antenna formed by adopting a plurality of narrow beam antennae; the beamforming of the transmission antenna and the receiving antennae is realized by adopting the dielectric lenses; the dielectric lenses are independently hanged on the lens support plate; and the transmission antenna and the receiving antennae are all arranged on the microwave circuit support plate. The anti-collision 77GHz millimeter wave radar antenna for the automobile has a flexible design and a simple structure, ensures system stability, sensitivity and accuracy and can realize the highly-accurate angle measurement and rapid switching of the receiving antennae.
Description
Technical field
The present invention relates to a kind of vehicle anticollision radar antenna, relate in particular to a kind of 77GHz millimeter-wave automotive anticollision radar antenna, belong to the Radar Technology field.
Background technology
The research of automobile active anti-corrosion control technology is always in widespread attention, becomes Recent study and the mainstream technology that develops anti-collision system for automobile, is chosen as one of " Future Ten large focal spot automotive safety technology " by U.S.'s Forbes.Automobile is the active safe driving servicing unit such as anticollision control system initiatively, can obviously reduce driver's burden and misjudgment, for improving traffic safety, reduces pernicious traffic accident incidence, reduces life and property loss and will play an important role.The result of study of NHTSA shows, the anticollision warning system can make rear-end impact accident decreased average 51%, the traffic accident decreased average 47% caused because changing track.
At present, the FMCW automobile active anti-corrosion radar of the 77GHz frequency range of domestic each the large universities and colleges of China and company automobile active anti-corrosion technology based on radar less appearing in the newspapers also.
Aspect car antenna, (number of patent application is 200920197931.X to the automobile bending antenna that has of visible report, Granted publication number is CN201508900), automotive glass antenna (number of patent application is 200880112598.6), transparent built-in antenna for automobiles etc. (number of patent application is 201020159051.6).
Aspect the millimetre-wave radar antenna, domestic visible report has three, exercise question is " microwave and millimeter wave automobile and indoor communications antenna " (number of patent application is ZL200920039530.1), introduced a kind of car antenna for the microwave and millimeter wave frequency range, adopt two-sided individual layer PCB technique, utilize upper and lower metal surface and a side plated-through hole array to realize electromagnetic sealing, and realize effective leaky wave radiation at opening surface; This kind of antenna is difficult to accomplish large transmitting power, and plated-through hole array realization simultaneously is more difficult.Patent No. ZL200820163086.X, exercise question has proposed antivibration, dustproof strong for " millimeter-wave quasi-optical integrated dielectric lens antenna and array thereof ", be applicable to the antenna structure of millimeter wave aircraft, automobile ship radar and communication equipment transmitting-receiving sensing, by micro-antenna integrated, di-lens, object lens, array pedestal, speculum, protective cover, switched-beam switch be with, formed, the barrel portion length of di-lens can change, aerial array range linear array or face battle array; The utility model has provided the specific implementation link of dielectric lens antenna and array realization, for lens, adds the such implementation of antenna, has pointed out the advantage realized, but has not specifically noted very much as the realization under the 77GHz condition at concrete some working frequency range.Patent No. ZL200820034299.2, exercise question has proposed a kind of shark fin type antenna shell be installed on metab for " Automotive overhead antenna unit and its antenna amplifier ", inside establishes antenna holder, radio receiving antenna and antenna amplifier antennafire.This antenna assembly is owing to having improved the current potential of antenna amplifier antennafire in the printed circuit board (PCB) Shangdi, reduced the absorption of roof to high-frequency signal, increased the reception of amplifier, the antenna that this patent proposes implements simple and convenient, but range of application is narrower, can not meet the vehicle anticollision demand under current high-speed cruising condition.When the radio frequency transmissions frequency reaches 77GHz, the signal extraction deficiency is a comparatively serious problem.High stability, miniaturization and low cost reach high precision angle-measuring and switching fast simultaneously, are the nearly stages, one of study hotspot of vehicle anticollision radar.
Summary of the invention
The objective of the invention is in order to realize high precision angle-measuring and the fast switching of vehicle anticollision radar antenna when the 77GHz millimeter wave, reduce costs and antenna volume simultaneously, improve the stability of a system, eliminate the impact of external environment on antenna and vehicle anticollision radar, propose a kind of 77GHz millimeter-wave automotive anticollision radar antenna.
The present invention is achieved by the following technical solutions.
A kind of 77GHz millimeter-wave automotive anti-collision radar antenna of the present invention, the mode that adopts antenna to be combined with lens, by lens support plate, microwave circuit support plate, a plurality of di-lens, 1 transmitting antenna, a plurality of reception antenna and wireless receiving and dispatching control module, formed, emission control module that the wireless receiving and dispatching control module is integrated and reception control module, wherein the quantity of di-lens equals the quantity sum of transmitting antenna and reception antenna;
Above-mentioned transmitting antenna is single broad beam antenna, for the transmitting antenna of bonding wave beam has enough transmitting powers, between emission control module and broad beam transmitting antenna, programmable amplifier and low noise amplifier is housed; Reception antenna adopts a plurality of narrow beam antennas to form multi-beam antenna, receives control module and carry out the high-speed switch selection between a plurality of reception antennas, to meet when covering the vehicle front zone, realizes high angle measurement accuracy;
Above-mentioned emission control module, transmitting antenna, reception control module and reception antenna all work in the 77GHz frequency range;
The beam forming of above-mentioned transmitting antenna and reception antenna all adopts di-lens to realize, the corresponding di-lens of each antenna, the equal independent suspension of each di-lens is on the lens support plate, each di-lens angle is adjustable, the focal length of each di-lens and scope identical with lens diameter is 60-80mm, posts aluminium foil and be used for suppressing and the screened shielded antanna secondary lobe on di-lens;
Above-mentioned transmitting antenna and reception antenna all are installed on the microwave circuit support plate, and each antenna is in same vertical direction with the center of corresponding di-lens;
The said lens support plate is the Teflon material, between lens support plate and microwave circuit support plate, adopt pillar to be connected and the pillar height adjustable;
On the microwave circuit support plate with the antenna measurement device, for the test to antenna and debugging.
Beneficial effect
A kind of 77GHz millimeter-wave automotive anti-collision radar antenna of the present invention, the mode of employing lens and antenna combination, increased the flexibility of Design and implementation, reduced design difficulty, guaranteed stability, sensitivity and the precision of system; The antenna measurement structure that band is necessary, adopt the integration module component design single-shot antennas of receiving more, coordinates the control of programmable amplifier, low noise amplifier and outside high-speed figure device, realizes the high precision angle-measuring of reception antenna and switching fast.
The accompanying drawing explanation
Fig. 1 is that in embodiments of the invention, 14 wave beam of receiving antenna covers schematic diagram;
Fig. 2 is 14 receipts antenna plan structure schematic diagram in embodiments of the invention;
Fig. 3 is 1 the 4 vertical section structural representation of receiving antenna in embodiments of the invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment
A kind of 77GHz millimeter-wave automotive anti-collision radar antenna, be installed on automobile chassis, for single-shot 4 is received antenna structure, the mode that adopts antenna to be combined with lens, by lens support plate, microwave circuit support plate, 5 di-lenses, 1 transmitting antenna, 4 reception antennas and corresponding wireless receiving and dispatching control module thereof, formed, emission control module that the wireless receiving and dispatching control module is integrated and reception control module
Above-mentioned transmitting antenna is the simple beam Wide antenna that coverage is 16 degree, and as shown in Figure 1,4 receiver antennas are narrow beam antenna, and each antenna beam angle of coverage is 4 degree, and antenna pattern is rectangle, is convenient to the connecting media lens.
Single-shot 4 is received antenna plan structure schematic diagram as shown in Figure 2, the vertical section structural representation as shown in Figure 3, wherein each di-lens diameter and focal length are 60mm, reception antenna is of a size of 1mm*1mm, transmitting antenna is of a size of 2mm*1.3mm, and the reception transmitting antenna all is positioned on the antenna pedestal of microwave circuit support plate, and the lens that each antenna is corresponding are positioned on Teflon lens support plate, but between lens support plate and microwave circuit support plate, by adjustable fixing, be connected, the elemental height of pillar is 60mm.In the present embodiment, the beam coverage of each reception antenna is 4 degree, and 4 reception antennas arrange successively, covers altogether 16 degree scopes.
The above is preferred embodiment of the present invention, and the present invention should not be confined to the disclosed content of this embodiment and accompanying drawing.Everyly do not break away from the equivalence completed under spirit disclosed in this invention or revise, all falling into the scope of protection of the invention.
Claims (1)
1. a 77GHz millimeter-wave automotive anti-collision radar antenna, it is characterized in that: the mode that adopts antenna to be combined with lens, by lens support plate, microwave circuit support plate, a plurality of di-lens, 1 transmitting antenna, a plurality of reception antenna and wireless receiving and dispatching control module, formed, emission control module that the wireless receiving and dispatching control module is integrated and reception control module, wherein the quantity of di-lens equals the quantity sum of transmitting antenna and reception antenna;
Above-mentioned transmitting antenna is single broad beam antenna, between emission control module and broad beam transmitting antenna, programmable amplifier and low noise amplifier is housed; Reception antenna adopts a plurality of narrow beam antennas to form multi-beam antenna, receives control module and carry out the high-speed switch selection between a plurality of reception antennas;
Above-mentioned emission control module, transmitting antenna, reception control module and reception antenna all work in the 77GHz frequency range;
The beam forming of above-mentioned transmitting antenna and reception antenna all adopts di-lens to realize, the corresponding di-lens of each antenna, and the equal independent suspension of each di-lens is on the lens support plate;
Above-mentioned transmitting antenna and reception antenna all are installed on the microwave circuit support plate, and each antenna is in same vertical direction with the center of corresponding di-lens;
The said lens support plate is the Teflon material, between lens support plate and microwave circuit support plate, adopts pillar to be connected;
Described transmitting antenna is the simple beam Wide antenna that coverage is 16 degree, and the angle of coverage that reception antenna is narrow beam antenna and each reception antenna wave beam is 4 degree, and the shape of transmitting antenna and reception antenna is rectangle;
On the microwave circuit support plate with the antenna measurement device;
Pillar height between described lens support plate and microwave circuit support plate is adjustable and the elemental height of pillar is 60mm;
Described each di-lens angle is adjustable, and the focal length of lens is identical with lens diameter;
The scope of di-lens diameter and focal length is 60-80mm;
Post aluminium foil on di-lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101756489A CN102290638B (en) | 2011-06-24 | 2011-06-24 | Anti-collision 77GHz millimeter wave radar antenna for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101756489A CN102290638B (en) | 2011-06-24 | 2011-06-24 | Anti-collision 77GHz millimeter wave radar antenna for automobile |
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| Publication Number | Publication Date |
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| CN102290638A CN102290638A (en) | 2011-12-21 |
| CN102290638B true CN102290638B (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101756489A Expired - Fee Related CN102290638B (en) | 2011-06-24 | 2011-06-24 | Anti-collision 77GHz millimeter wave radar antenna for automobile |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793188A (en) * | 2015-04-29 | 2015-07-22 | 芜湖航飞科技股份有限公司 | Vehicle-mounted millimeter-wave anti-collision radar antenna system |
| CN105428822B (en) * | 2015-11-24 | 2019-03-15 | 大连楼兰科技股份有限公司 | Vehicle anti-collision radar multicast SIW lens antenna |
| CN113169444B (en) * | 2018-12-06 | 2023-11-21 | Iee国际电子工程股份公司 | Radar apparatus for internal automotive radar sensing applications |
| CN111725604B (en) | 2019-03-20 | 2021-09-14 | Oppo广东移动通信有限公司 | Millimeter wave antenna device and electronic apparatus |
| CN113544907B (en) * | 2020-03-13 | 2022-12-27 | 华为技术有限公司 | Lens antenna, detection device and communication device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201282193Y (en) * | 2008-08-28 | 2009-07-29 | 阮树成 | Millimeter-wave quasi light integration dielectric lens antenna and array thereof |
| CN101585361A (en) * | 2009-05-25 | 2009-11-25 | 郭文艺 | Control device for preventing automobile from colliding and deviating roadway |
| CN202103168U (en) * | 2011-06-24 | 2012-01-04 | 北京理工大学 | 77GHz millimeter wave automobile anticollision radar antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2558147B2 (en) * | 1988-07-06 | 1996-11-27 | 参天製薬株式会社 | Immune disease therapeutic agent |
| JPH0996521A (en) * | 1995-09-29 | 1997-04-08 | Kansei Corp | Measuring apparatus for distance between vehicles |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201282193Y (en) * | 2008-08-28 | 2009-07-29 | 阮树成 | Millimeter-wave quasi light integration dielectric lens antenna and array thereof |
| CN101585361A (en) * | 2009-05-25 | 2009-11-25 | 郭文艺 | Control device for preventing automobile from colliding and deviating roadway |
| CN202103168U (en) * | 2011-06-24 | 2012-01-04 | 北京理工大学 | 77GHz millimeter wave automobile anticollision radar antenna |
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| CN102290638A (en) | 2011-12-21 |
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