CN110174649A - Radio-frequency front-end transceiver, trailer-mounted radar receive-transmit system - Google Patents
Radio-frequency front-end transceiver, trailer-mounted radar receive-transmit system Download PDFInfo
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- CN110174649A CN110174649A CN201910377546.1A CN201910377546A CN110174649A CN 110174649 A CN110174649 A CN 110174649A CN 201910377546 A CN201910377546 A CN 201910377546A CN 110174649 A CN110174649 A CN 110174649A
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- 230000010287 polarization Effects 0.000 claims abstract description 49
- 230000008054 signal transmission Effects 0.000 claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims description 40
- 239000000758 substrate Substances 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 210000004209 hair Anatomy 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000009975 flexible effect Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000003447 ipsilateral effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
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- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/282—Transmitters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention relates to Radar Technology fields, and in particular to a kind of radio-frequency front-end transceiver, trailer-mounted radar receive-transmit system.Radio-frequency front-end transceiver includes: aerial array；Transceiver unit is electrically connected with the aerial array, for passing through the aerial array transceiving electromagnetic wave signal；Wherein, the aerial array includes the transmitting antenna for emitting the electromagnetic wave signal, and the signal transmission direction of at least partly described transmitting antenna is different with polarization direction；Transmitting antenna i.e. different with signal transmission direction by using polarization direction, the flexibility of aerial array put and be laid out can effectively be promoted, and under the premise of ensuring antenna receiving and transmitting signal performance, the occupied area of entire aerial array can also be effectively reduced, and then reaches and reduces antenna and trailer-mounted radar receive-transmit system size purpose.
Description
Technical field
The present invention relates to Radar Technology fields, and in particular to a kind of radio-frequency front-end transceiver, trailer-mounted radar receive-transmit system.
Background technique
Radar is the electronic equipment using electromagnetic wave detection object.At work, radar emission electromagnetic wave, to detect from object
The echo reflected on body, so as to judge the information such as the distance between object.With the development of smart machine, miniradar
In civil field using more and more extensive.Millimeter wave (narrow wave) radar system is gradually applied to various vehicles, for mentioning
Awake the distance between vehicle and barrier, support staff's operation or Vehicular automatic driving.
The size of radar component depends primarily on the size of aerial array, and detection direction depends on the radiation side of aerial array
To.Millimetre-wave radar system can use the lesser antenna of size, therefore, in consumer smart machine due to its frequency characteristic
It is upper that there is apparent advantage.Existing millimetre-wave radar system generally includes planar antenna array, and antenna element therein is for example
Paster antenna, slot antenna etc..The radiation direction of these antenna is directed predominantly perpendicular to antenna surface.However, with smart machine
The demand of miniaturization and multimode application, how millimetre-wave radar system altitude is integrated in equipment is still one
Huge challenge.
Antenna Design and arrangement are to influence the deciding factor of final products volume and shape.Since installation space is limited,
The volume of such antenna product tends to minimize at present, such as trailer-mounted radar receive-transmit system.Because of the area of antenna and its gain
It is directly proportional, simultaneously because chip integration improves, further increase the difficulty of antenna element.Therefore, it needs a kind of reasonable
Antenna Design makes antenna that can be provided simultaneously with small size and high-performance.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of radio-frequency front-end transceiver and trailer-mounted radar receive-transmit system, pass through
Using the polarization direction transmitting antenna different with signal transmission direction, can effectively be promoted aerial array put and be laid out it is flexible
Property, and under the premise of ensuring antenna receiving and transmitting signal performance, moreover it is possible to the occupied area of entire aerial array is effectively reduced, in turn
Achieve the purpose that reduce antenna and trailer-mounted radar receive-transmit system size.
In an alternative embodiment, this application provides a kind of radio-frequency front-end transceiver, described devices can include:
Aerial array；
Transceiver unit is electrically connected with the aerial array, for passing through the aerial array transceiving electromagnetic wave signal；
Wherein, the aerial array includes the transmitting antenna for emitting the electromagnetic wave signal, and
The signal transmission direction of at least partly described transmitting antenna is different with polarization direction.
It is different with polarization direction by setting signal transmission direction in the embodiment of the application radio-frequency front-end transceiver
Transmitting antenna, can effectively promote the flexibility of entire antenna array design and layout, while entire aerial array can also be reduced
The area of required occupancy, and then effectively reduce the size of radio-frequency front-end transceiver.
In an alternative embodiment, the signal transmission direction and polarization direction of at least partly described transmitting antenna
Vertically, while can further promoting aerial array hair receipts electromagnetic wave signal performance, aerial array institute can also further be reduced
The area of occupancy.
In an alternative embodiment, the feed side of the signal transmission direction transmitting antenna different with polarization direction
Formula is centre feed, can effectively reduce the length of each transmitting antenna feeder line, can not only promote the signal-to-noise ratio of aerial array, simultaneously
The power of transmitting antenna institute electromagnetic signals can also be promoted, or is effectively reduced when emitting equality strength electromagnetic wave signal
The power consumption of transmitting antenna.
In an alternative embodiment, the signal transmission direction transmitting antenna different with polarization direction can include:
At least two first transmission antenna units；
Feeder line is connected, for each first transmission antenna unit is in parallel；And
Channel feeder line, one end and the transceiver unit, the other end of the channel feeder line are connected to the connection feeder line
Central point, each first transmission antenna unit can be fed by the central point, can not only further shorten each feedback
The length of line can also promote transmitting antenna directed radiation performance, to propose the performance of R-T unit；
Wherein, the signal transmission direction and the polarization direction phase of the transmitting antenna in first transmission antenna unit
It is different.
In an alternative embodiment, each first transmission antenna unit is evenly distributed on the same of the channel feeder line
Side.
In an alternative embodiment, first transmission antenna unit includes:
Sub- feeder line；And
Multiple radiating elements in parallel, one end end of each radiating element is connected on the sub- feeder line；
Wherein, each radiating element is successively alternately uniformly distributed in the two sides of the sub- feeder line.
In an alternative embodiment, the aerial array may also include for receiving the emitted electricity of the transmitting antenna
The polarization direction of the receiving antenna of the echo of magnetostatic wave signal, the receiving antenna is identical as signal transmission direction；
Wherein, the polarization direction of the receiving antenna is identical as the polarization direction of the transmitting antenna.
In an alternative embodiment, the receiving antenna includes concatenated multiple radiating elements；
Wherein, the feeding classification of the receiving antenna is edge feed.
In an alternative embodiment, the electromagnetic wave signal is millimeter wave wave signal.
In an alternative embodiment, the transmitting antenna includes:
The polarization direction of first transmitting sub-antenna, the first transmitting sub-antenna is different with signal transmission direction；
The polarization direction of second transmitting sub-antenna, the second transmitting sub-antenna is identical as signal transmission direction；
Wherein, the second transmitting sub-antenna includes concatenated multiple radiating elements, the feeding classification of the receiving antenna
For edge feed.
In an alternative embodiment, the device may also include that
Medium substrate, the transceiver unit and the aerial array are arranged on the same surface of the medium substrate；
Wherein, the receiving antenna and the first transmitting sub-antenna are distributed in the same side or the phase of the transceiver unit
To two sides.
In an alternative embodiment, the transceiver unit is the radar chip with transceiver function；
Wherein, the aerial array is integrated on or in the encapsulated layer of the radar chip.
In an alternative embodiment, the embodiment of the present application also provides a kind of trailer-mounted radar receive-transmit systems, it may include:
At least one radio-frequency front-end transceiver as described in any one of the embodiment of the present application；And
Processor is connect with the radio-frequency front-end transceiver；
Wherein, the processor is used to carry out data processing according to the electromagnetic wave signal of the sent out receipts of the aerial array.
In the embodiment of the application trailer-mounted radar receive-transmit system, by using with signal transmission direction and polarization direction phase
The radio-frequency front-end transceiver of different transmitting antenna, not only may make at least partly transmitting antenna put and be laid out can be flexible
Adjustment, and while guaranteeing performance, keep the design of entire R-T unit more compact, effectively reduction feed line length, reduces
The size of feeding network decreases the occupied space of trailer-mounted radar receive-transmit system.
It should be noted that since the size of radio-frequency front-end transceiver in the embodiment of the present application is further contracted
It is small, so may make the product including the radio-frequency front-end transceiver can be applied to such as vehicle (such as automatic Pilot), nobody
In the more scenes and environment such as machine, robot, smart home, consumer-elcetronics devices, such as receives and dispatches and fill comprising the radio-frequency front-end
The trailer-mounted radar receive-transmit system set, before scheme used by the embodiment of the present application has expanded use space and the market of such product
Scape.
Detailed description of the invention
Description by referring to the following drawings to the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings:
Fig. 1 is the schematic diagram of radio-frequency front-end transceiver in an optional embodiment；
Fig. 2 is that tradition shows the structure for the radio-frequency front-end transceiver that dual-mode antenna is set to transceiver unit opposite sides
It is intended to；
Fig. 3 is that dual-mode antenna is set to the ipsilateral radio-frequency front-end transmitting-receiving dress of transceiver unit in an optional embodiment
The structural schematic diagram set；
Fig. 4 is to receive the radio-frequency front-end that dual-mode antenna is set to transceiver unit opposite sides in an optional embodiment
The structural schematic diagram of transmitting apparatus；
Fig. 5 is that dual-mode antenna is set to the ipsilateral radio-frequency front-end of transceiver unit in another optional embodiment to receive and dispatch
The structural schematic diagram of device；
Fig. 6 is the structural schematic diagram of trailer-mounted radar receive-transmit system in an optional embodiment.
Specific embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under
Text is detailed to describe some specific detail sections in datail description of the invention.Do not have for a person skilled in the art
The present invention can also be understood completely in the description of these detail sections.In order to avoid obscuring essence of the invention, well known method, mistake
Journey, process do not describe in detail.In addition attached drawing is not necessarily drawn to scale.
For in conventional radio frequency fore device, due to being received using polarization direction antenna identical with signal transmission direction
Generate electricity magnetostatic wave signal, and then the arrangement of antenna can be made difficult, it is difficult to the technical problems such as further size for reducing antenna, this
In the embodiment of application, the creative transmitting antenna different with signal transmission direction using polarization direction, while can keep connecing
Receive antenna polarization direction it is identical as signal transmission direction, and then can effectively be promoted aerial array put and be laid out it is flexible
Property, and under the premise of ensuring antenna receiving and transmitting signal performance, moreover it is possible to the occupied area of entire aerial array is effectively reduced, in turn
Reach and reduces antenna and trailer-mounted radar receive-transmit system size purpose.
With reference to the accompanying drawing, it is illustrated for the radio-frequency front-end transceiver in the embodiment of the present application:
Fig. 1 is the schematic diagram of radio-frequency front-end transceiver in an optional embodiment.As shown in Figure 1, radio-frequency front-end is received
Transmitting apparatus may include the components such as transceiver unit 120 and the aerial array (not shown) for transceiving electromagnetic wave signal, on
The components such as the transceiver unit 120 stated and aerial array can be integrated on the same surface of medium substrate 110, be received for emitting
The frequency electromagnetic waves information such as millimeter wave, microwave and centimeter wave, to carry out the operation such as ranging, calibration and communication.Wherein,
Above-mentioned aerial array may include the reception day for the transmitting antenna of electromagnetic signals and for receiving electromagnetic wave echo
Line 130, transmitting antenna may include the components such as the first transmitting sub-antenna 150 and the second transmitting sub-antenna 140, i.e., above-mentioned transmitting day
Line can be used for electromagnetic signals, and receive antenna 130 then and can be used for receiving above-mentioned electromagnetic wave signal through object (or obstacle
Object) echo is formed by after reflection, and the difference based on echo-signal Yu institute's electromagnetic signals carries out above-mentioned ranging, survey
Away from, calibration and communication etc. operation.
It should be noted that structure shown in FIG. 1 is the antenna structure that four hairs four receive (i.e. 4T4R), that is, it include four transmittings
Antenna 130 and four receiving antennas (i.e. two first transmitting sub-antennas 150 and two second transmitting sub-antennas 140), and at it
In his optional embodiment, can also antenna be set to the antenna structure for the types such as four hairs two are received, four hairs three are received, as long as including
At least one transmitting antenna and at least one receiving antenna, and same root antenna structure can also be used for transceiving electromagnetic wave simultaneously
Signal, and in some special application scenarios, or even can only be arranged including the first transmitting sub-antenna as shown in Figure 1
150 antenna structure, the first transmitting sub-antenna 150 can also carry out the behaviour such as reception of echo based on time-multiplexed mode at this time
Make.
Fig. 2 is that tradition shows the structure for the radio-frequency front-end transceiver that dual-mode antenna is set to transceiver unit opposite sides
It is intended to.As shown in Fig. 2, transmitting antenna and receiving antenna are identical structures, and are generally pole in traditional aerial array
Change direction antenna structure identical with signal transmission direction, i.e. transceiver unit 220, receiving antenna 230, wide wave transmitting antenna
240 and narrow wave transmitting antenna 250 be respectively positioned on medium substrate 210, each antenna is connected to transceiver unit by feeder line 260
220, and receiving antenna 230 and the signal transmission direction of wide wave transmitting antenna 240 are as shown by arrow A, and narrow wave transmitting antenna 250
Signal transmission direction it is as shown by arrow A, each antenna is vertical polarization and signal transmission direction and antenna polarization direction one
It causes.Wherein, since receiving antenna 230 and wide wave transmitting antenna 240 are located at 220 side of transceiver unit, and narrow wave emits
Antenna 250 is then located at the other side of transceiver unit 220, i.e. transmitting antenna is sent out positioned at the two sides of transceiver unit 220, and respectively
The signal transmission direction of antenna is penetrated in 180 °, while each transmitting antenna is that polarization direction and signal transmit identical day knot
Structure, and then will lead to because foozle causes the directional diagram of antenna to separate defect, to influence the long-range detection energy of the antenna
Power.Simultaneously as transmitting antenna and receiving antenna are same antenna structure, can also make the wiring of antenna, layout compared with
To be single, and required area size is also larger.
On the basis of conventional antenna structures shown in Fig. 2, inventor creative proposition Fig. 1 in the embodiment of the present application
Shown in structure, i.e., by first transmitting sub-antenna 150 be set as the signal transmission direction antenna structure different with polarization direction,
Simultaneously keep receiving antenna 130 be signal transmission direction antenna structure identical with polarization direction, i.e., so that transmitting antenna with connect
Receipts antenna structure is different, and the transmitting antenna different with signal transmission direction using polarization direction, such as polarization direction and signal
The orthogonal transmitting antenna of transmission direction, the i.e. day of the second transmitting antenna 140 and the first transmitting antenna 150 shown in Fig. 1
Cable architecture is also different, to be used to realize the transmittings of different electromagnetic waves, and then effectively to be promoted the wiring of antenna, layout it is flexible
Property, while the size of area needed for antenna is distributed can also be further decreased, so as to effectively reduce radio-frequency front-end transceiver
Size.
In an alternative embodiment, as shown in Figure 1, transceiver unit 120 can be the radar with transceiver function
Chip, the first transmitting sub-antenna 150 can be used for emitting narrow wave signal, and the second transmitting sub-antenna 140 then can be used for emitting wide wave
Signal；Meanwhile receiving antenna 130 and the first transmitting sub-antenna 150 can be distributed in the opposite sides of transceiver unit 120, and the
Two transmitting sub-antennas 140 can then close on receiving antenna 130, be oppositely arranged on transceiver unit 120 with the first transmitting sub-antenna 140
Two sides.Wherein, the first transmitting sub-antenna 150, second emits sub-antenna 140 and the polarization direction of receiving antenna 130 is all the same
(such as direction shown in Fig. 1 arrow A), and the signal transmission direction of receiving antenna 130 then can it is identical as polarization direction (such as
For direction shown in Fig. 1 arrow A), while the signal transmission direction of the first transmitting sub-antenna 150 is then perpendicular to polarization direction (example
The direction as shown in Fig. 1 arrow C, D) i.e. the signal transmission direction of receiving antenna 130 with first transmitting sub-antenna 150 signal pass
Defeated direction is different, such as signal transmission direction is perpendicular both shown in Fig. 1.
Since in traditional aerial array, sub-antenna unit included by each antenna is by multiple radiating elements series connection structure
At, as shown in Fig. 2, narrow wave transmitting antenna 250 includes the sub-antenna unit 231 of multiple parallel connections, and every receiving antenna 230 and width
Wave transmitting antenna 240 includes a sub- antenna element 231, but each sub-antenna unit 231 is by multiple radiating elements 270
It is connected in series, and narrow wave transmitting antenna 250 or edge feeder line, is only so that the occupied area of entire antenna is larger, simultaneously
But also the feeder line 260 connected between narrow wave transmitting antenna 250 and transceiver unit 220 is longer, while can also to close on receipts
The isometric coiling for the feeder line 260 that hair machine unit 220 connects is longer, and then will increase loss, and according to microstrip line or coplanar wave
The feeder line 260 for leading form is also possible to will affect isolation and directional diagram.
In an alternative embodiment, for structure shown in above-mentioned Fig. 2, present inventor
Then creative proposition constitutes the sub-antenna unit of transmitting antenna using radiating element in parallel, and simultaneously using it is intermediate (or
Center) feed mode transmitting antenna is electrically connected with transceiver unit.As shown in Figure 1, transceiver unit 120 may include multiple
Receiving channel and multiple transmission channels, receiving antenna 130 may include multiple reception sub-antennas 131, and each sub-antenna 131 that receives divides
It is not corresponded with multiple receiving channels, each reception sub-antenna 131 includes a radiating element by multiple series connections
The 170 reception sub-antenna units constituted, i.e., each reception sub-antenna unit pass through a channel feeder line 162 and are connected to transceiver
In one receiving channel of unit 120, and then form the reception sub-antenna 131 of edge power supply.Similarly, each second transmitting
Antenna 140 is also corresponded with transmission channel respectively, and each second transmitting sub-antenna 140 includes one and connected by multiple series connection
The second reception sub-antenna unit 141 that the radiating element 170 connect is constituted, i.e., each second reception sub-antenna unit 141 pass through
A piece channel feeder line 161 is connected on a transmission channel of transceiver unit 120, and then forms the second of the power supply of an edge
Emit sub-antenna 140.
Meanwhile as shown in Figure 1, each first transmitting sub-antenna 150 then may include first transmission antenna unit 151 (or
152), and each first transmission antenna unit 151 (or 152) can be correspondingly connected with by a channel feeder line 162 and a transmission channel.
Wherein, each first transmission antenna unit 151 (or 152) may include the multiple first reception sub-antennas in parallel by connection feeder line 1621
Unit 180, each first transmitting sub-antenna unit unit 180 may include multiple radiating elements being connected in parallel by sub- feeder line 1622
170, each radiating element 170 is successively alternately uniformly distributed in the two sides of sub- feeder line 1622.Similarly, the first transmission antenna unit
151 (or 152) its corresponding transmission channels are connected by channel feeder line 162, and each first transmission antenna unit 151 is uniformly divided
Cloth forms polarization direction first transmitting antenna vertical with signal transmission direction in the same side of its channel feeder line 162
150。
Specifically, it as shown in Figure 1, by taking transceiver unit 120 includes 4 receiving channels and 4 transmission channels as an example, receives
Antenna 130 includes 4 reception sub-antennas 131, is corresponded respectively with 4 receiving channels, the signal transmission of receiving antenna 130
Direction is as shown by arrow A；And it then may include concatenated 6 that each second in the second transmitting sub-antenna 140, which receives sub-antenna unit 141,
A radiating element 170, and the reception that the second reception sub-antenna unit 141 is electrically connected to transceiver unit 120 by feeder line 161 is logical
Road.Meanwhile two first transmitting sub-antennas 150 can respectively include the first transmission antenna unit 151 and the first transmission antenna unit
152, and the first transmission antenna unit 151 and the symmetrical setting of the first transmission antenna unit 152, the first transmission antenna unit
151 signal transmission direction direction as shown by arrow A, the signal transmission direction of the first transmission antenna unit 152 is then such as arrow D institute
Show direction.In addition, the first transmission antenna unit 151 and the first transmission antenna unit 152 can be opposite with a transmission channel respectively
It answers, and transceiver unit 120 is connected to by channel feeder line 162 respectively.
As shown in Figure 1, in an alternative embodiment, be described in detail by taking the first transmission antenna unit 151 as an example,
First transmission antenna unit 151 may include the sub- feeder line 1622 that the six roots of sensation is parallel to each other, i.e., each sub- feeder line 1622 can be along arrow C institute
Show that direction extends parallel to each other, and the sub- feeder line 1622 of the six roots of sensation is in parallel by a root unit feeder line 1621, and each root feeder line
It may be provided with multiple equally distributed cell nodes 1625 on 1622；For example, in Fig. 1 settable 4 on single sub- feeder line 1622
Equally distributed cell node 1625, and may be provided with a corresponding radiating element 170 at each cell node 1625, i.e., respectively
The end of radiating element 170 is electrically connected at cell node 1625 with sub- feeder line 1622.
Further, as shown in Figure 1,4 above-mentioned radiating elements 170 can also successively be alternately disposed at sub- feeder line 1622
Opposite sides.In addition, connection feeder line 1621 is connected to transceiver unit 120 by channel feeder line 162 at 1623 at the center point
A transmission channel, i.e., transceiver unit 120 and the first transmission antenna unit are electrically connected using the direction of centre feed
It connects.Equally distributed child node 1624 is additionally provided on connection feeder line 1621, child node 1624 can be based on connection feeder line 1621
Central point 1623 is symmetrical, and one end of each sub- feeder line 1622 is electrically connected with the child node 1624 connecting on feeder line 1621,
And then the parallel connection of more root feeder lines 1622 is realized by connecting feeder line 1621, to form first transmitting antenna with parallel-connection structure
Unit 151, and each sub- feeder line 1622 is formed by (the i.e. single son of radiating element string 180 in first transmission antenna unit 151
Feeder line constitutes the radiating element string 180 with radiating element 170 thereon) it is in parallel by channel feeder line 162 by connection feeder line 1621
In the same transmission channel.
In the embodiment of the present application, as shown in Figure 1, since the feeding classification of the first transmitting sub-antenna 150 is centre feed,
And then can effectively reduce each transmitting antenna feeder line length (as close to transceiver unit 120 channel feeder line on it is isometric around
The length of line), the signal-to-noise ratio of aerial array can be not only promoted, while the function of transmitting antenna institute electromagnetic signals can also be promoted
Rate, or the power consumption of transmitting antenna is effectively reduced when emitting equality strength electromagnetic wave signal.
It should be noted that receiving channel described in the embodiment of the present application, transmission channel and each receiving antenna,
Specific arrangement quantity in transmitting antenna array is example, and quantity can adjust accordingly according to actual needs.Radiation is single
Member 170 can penetrate antenna, plane end-on-fire antenna, printed dipole, Vivaladi antenna, gap slot antenna and loudspeaker for vertical end
Any one of antenna.Similarly, receiving antenna 130, first emits sub-antenna 150 and the second transmitting sub-antenna 140
Polarization direction can be selected from least one of vertical polarization, horizontal polarization, and the setting direction of the first transmitting sub-antenna 150 need to be with
Its polarization direction matches.
Fig. 3 is that dual-mode antenna is set to the ipsilateral radio-frequency front-end transmitting-receiving dress of transceiver unit in an optional embodiment
The structural schematic diagram set.As shown in figure 3, radio-frequency front-end transceiver may include medium substrate 310, transceiver unit 320 and use
In components such as the aerial arrays of transceiving electromagnetic wave signal, i.e., the components such as above-mentioned transceiver unit 320 and aerial array can integrate
On medium substrate 310, the frequency electromagnetic waves information such as millimeter wave, microwave and centimeter wave are received for emitting, it is all to carry out
Such as ranging, calibration and communication operation.Wherein, above-mentioned aerial array may include the transmitting antenna for electromagnetic signals
With the receiving antenna 330 for receiving electromagnetic wave echo, transmitting antenna may include the first transmitting sub-antenna 350 and the second transmitting
The components such as antenna 340, i.e., above-mentioned transmitting antenna can be used for electromagnetic signals, and receives antenna 330 and then can be used for receiving
Above-mentioned electromagnetic wave signal is formed by echo after object (or barrier) reflection, and based on echo-signal and emitted electromagnetism
The difference of wave signal carries out the operation such as above-mentioned ranging, ranging, calibration and communication.
Sub-antenna unit included by each antenna is in series by multiple radiating elements, as shown in figure 3, receiving antenna
330 include the sub-antenna unit 331 of multiple parallel connections；Second transmitting sub-antenna 340 includes the sub-antenna unit 341 of multiple parallel connections,
The above sub-antenna unit is connected in series by multiple radiating elements, and the first transmitting sub-antenna 350 includes the first transmitting antenna list
Member 351 and the first transmission antenna unit 352.
As shown in figure 3, transceiver unit 320 can be the radar chip with transceiver function, the first transmitting sub-antenna 350
It can be used for emitting narrow wave signal, and the second transmitting sub-antenna 340 then can be used for emitting wide wave signal；Meanwhile receiving antenna 330,
First transmitting sub-antenna 350, second emits the same side that sub-antenna 340 is respectively positioned on transceiver unit 320.Wherein, the first transmitting
Sub-antenna 350, second emits polarization direction (such as the side shown in Fig. 3 arrow A all the same of sub-antenna 340 and receiving antenna 330
To), and the signal transmission direction of receiving antenna 330 then can it is identical as polarization direction (such as be also side shown in Fig. 3 arrow A
To), while the signal transmission direction of the first transmitting sub-antenna 350 is then perpendicular to polarization direction (such as shown in Fig. 3 arrow C, D
Direction) i.e. the signal transmission direction of receiving antenna 330 is different with the first transmitting signal transmission direction of sub-antenna 350, such as Fig. 3
Shown in both signal transmission direction it is perpendicular.
The specific structure of the first transmitting sub-antenna 350 is similar with Fig. 1 in Fig. 3, and details are not described herein, compared to Figure 1, figure
Emit sub-antenna 350, receiving antenna 330 and the second transmitting sub-antenna 340 for first in 3 and is arranged at transceiver unit 320
The same side, and the signal transmission direction of the first transmitting sub-antenna 350 and polarization direction are perpendicular, pass through setting signal transmission direction
The transmitting antenna different with polarization direction can effectively promote the flexibility of entire antenna array design and layout, reduce due to system
The decline of antenna performance caused by error is made, reduces the area occupied needed for entire aerial array, and then effectively reduce radio-frequency front-end
The size of R-T unit.
In an alternative embodiment, transceiver unit is, for example, the radar chip with transceiver function, can be in thunder
Above-mentioned aerial array is integrated on or in up to the encapsulated layer of chip.
In an alternative embodiment, as shown in figure 4, only with receiving antenna 430 and the first transmitting 450 phase of sub-antenna
The mode of cooperation, receiving antenna 430 and the first transmitting sub-antenna 450 are respectively in the two sides up and down of transceiver unit 420 in symmetrical
Receiving antenna 430 and the first transmitting sub-antenna 450 can also be separately positioned on the left and right of transceiver unit 420 of course by setting
Two sides.Using structure same as the first transmitting sub-antenna 150 shown in Fig. 1 and layout side inside first transmitting sub-antenna 450
Formula, details are not described herein, is electrically connected equally by the way of centre feed with transceiver unit 420, and receiving antenna 430 uses
The mode of edge feed is electrically connected with transceiver unit 420.The second transmitting sub-antenna 440 is eliminated in this embodiment, may make
The horizontal (vertical) direction of the R-T unit is smaller, to meet the size requirement of specific usage scenario.
Similarly, as an alternative embodiment, as shown in figure 5, it is equally used using only the first transmitting
The combination that antenna 550 is matched with receiving antenna 230.Receiving antenna 530 and the first transmitting sub-antenna 550 are arranged at transceiver
The same side of unit 520, and the first transmitting sub-antenna 550 is parallel to receiving antenna 530, is set to the right side of receiving antenna 530.
Specifically, receiving antenna 530 is located at the surface of transceiver unit 520, and the first transmitting sub-antenna 550 is located at transceiver unit
520 upper right side.The inside of first transmitting sub-antenna 550 uses layout type same as embodiment one in Fig. 1, herein no longer
It repeats.
It should be noted that the orientation such as " upper and lower, left and right " in the embodiment of the present application, be all based on face attached drawing and
Speech, those skilled in the art should learn, in actual application, can be divided according to actual demand aerial array
Cloth is adaptively adjusted, and distribution mode adjusted should also be included in the technology contents range of the application.
Fig. 6 is the structural schematic diagram of trailer-mounted radar receive-transmit system in an optional embodiment.As shown in fig. 6, this is vehicle-mounted
Radar transmit-receive system includes: radio-frequency front-end transceiver 61 and the processor 62 that is connected with radio frequency leading portion R-T unit 61,
In, processor is used to send out the electromagnetic wave signal received according to aerial array (radio-frequency front-end transceiver 61) and carries out data processing.
Of course, which may also comprise multiple radio-frequency front-end transceivers 61 being connected respectively with processor 62,
Transceiver unit in the radio-frequency front-end transceiver 61 can be independent transceiver chip, can also be to be integrated in processor 62
System level chip is constituted together.
In above embodiments, reduce the size of antenna further, make the R-T unit can be applied to vehicle,
In the more scenes and environment such as unmanned plane, robot, smart home, before having expanded use space and the market of such product
Scape.
In conclusion the radio-frequency front-end transceiver and trailer-mounted radar receive-transmit system of the embodiment of the present invention, by utilizing tool
The radio-frequency front-end transceiver for the transmitting antenna for having signal transmission direction different with polarization direction not only may make and at least partly send out
Putting and be laid out and being adjusted flexibly for antenna is penetrated, and while guaranteeing performance, steps up the design of entire R-T unit more
It gathers, effectively reduction feed line length, reduces the size of feeding network, decrease the occupied sky of trailer-mounted radar receive-transmit system
Between.
It should be noted that since the size of radio-frequency front-end transceiver in the embodiment of the present application is further contracted
It is small, so may make the product including the radio-frequency front-end transceiver can be applied to such as vehicle (such as automatic Pilot), nobody
In the more scenes and environment such as machine, robot, smart home, consumer-elcetronics devices, such as receives and dispatches and fill comprising the radio-frequency front-end
The trailer-mounted radar receive-transmit system set, before scheme used by the embodiment of the present application has expanded use space and the market of such product
Scape.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For, the invention can have various changes and changes.All any modifications made within the spirit and principles of the present invention are equal
Replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of radio-frequency front-end transceiver, which is characterized in that described device includes:
Aerial array；
Transceiver unit is electrically connected with the aerial array, for passing through the aerial array transceiving electromagnetic wave signal；
Wherein, the aerial array includes the transmitting antenna for emitting the electromagnetic wave signal, and
The signal transmission direction of at least partly described transmitting antenna is different with polarization direction.
2. the apparatus according to claim 1, which is characterized in that the signal transmission side of at least partly described transmitting antenna
To vertical with polarization direction；And/or
The feeding classification of the signal transmission direction transmitting antenna different with polarization direction is centre feed.
3. the apparatus of claim 2, which is characterized in that the signal transmission direction transmitting different with polarization direction
Antenna includes:
At least two first transmission antenna units；
Feeder line is connected, for each first transmission antenna unit is in parallel；And
Channel feeder line, one end are connect with the transceiver unit, and the other end of the channel feeder line is connected to the connection feeder line
Central point；
Wherein, the signal transmission direction in first transmission antenna unit is different with the polarization direction of the transmitting antenna.
4. device according to claim 3, which is characterized in that each first transmission antenna unit is evenly distributed on described
The same side of channel feeder line；And/or
First transmission antenna unit includes:
Sub- feeder line；And
Multiple radiating elements in parallel, one end end of each radiating element is connected on the sub- feeder line；
Wherein, each radiating element is successively alternately uniformly distributed in the two sides of the sub- feeder line.
5. device as described in claim 1, which is characterized in that the aerial array further includes for receiving the transmitting antenna
The receiving antenna of the echo of institute's electromagnetic wave signal, the polarization direction of the receiving antenna are identical as signal transmission direction；
Wherein, the polarization direction of the receiving antenna is identical as the polarization direction of the transmitting antenna.
6. device as claimed in claim 5, which is characterized in that the receiving antenna includes concatenated multiple radiating elements；
Wherein, the feeding classification of the receiving antenna is edge feed.
7. the apparatus according to claim 1, which is characterized in that the electromagnetic wave signal is millimeter wave wave signal；And/or
The transceiver unit is the radar chip with transceiver function；
Wherein, the aerial array is integrated on or in the encapsulated layer of the radar chip.
8. device as described in claim 1, which is characterized in that the transmitting antenna includes:
The polarization direction of first transmitting sub-antenna, the first transmitting sub-antenna is different with signal transmission direction；
The polarization direction of second transmitting sub-antenna, the second transmitting sub-antenna is identical as signal transmission direction；
Wherein, the second transmitting sub-antenna includes concatenated multiple radiating elements, and the feeding classification of the receiving antenna is side
Edge feed.
9. device according to claim 8, which is characterized in that further include:
Medium substrate, the transceiver unit and the aerial array are arranged on the same surface of the medium substrate；
Wherein, the receiving antenna and the first transmitting sub-antenna are distributed in the same side or opposite two of the transceiver unit
Side.
10. a kind of trailer-mounted radar receive-transmit system characterized by comprising
At least one radio-frequency front-end transceiver as described in any one of claim 1-9；And
Processor is connect with the radio-frequency front-end transceiver；
Wherein, the processor is used to carry out data processing according to the electromagnetic wave signal of the sent out receipts of the aerial array.
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| CN201910377546.1A CN110174649A (en) | 2019-05-07 | 2019-05-07 | Radio-frequency front-end transceiver, trailer-mounted radar receive-transmit system |
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| CN201910377546.1A CN110174649A (en) | 2019-05-07 | 2019-05-07 | Radio-frequency front-end transceiver, trailer-mounted radar receive-transmit system |
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| CN111653865A (en) * | 2019-12-03 | 2020-09-11 | 摩登汽车有限公司 | Vehicle-mounted antenna structure and automobile flow guide plate |
| CN111816969A (en) * | 2020-06-22 | 2020-10-23 | 星展测控科技股份有限公司 | Connecting waveguide and transmitting-receiving integrated equipment |
| CN111834742A (en) * | 2020-06-08 | 2020-10-27 | 惠州市德赛西威智能交通技术研究院有限公司 | Vehicle-mounted millimeter wave radar array antenna |
| CN113013583A (en) * | 2021-01-29 | 2021-06-22 | 中国电子科技集团公司第三十八研究所 | Millimeter wave radar packaging module |
| CN113126078A (en) * | 2019-12-30 | 2021-07-16 | 北京华航无线电测量研究所 | Method for realizing miniaturization of Doppler radar |
| WO2022127397A1 (en) * | 2020-12-16 | 2022-06-23 | Oppo广东移动通信有限公司 | Radio frequency transceiving system and communication device |
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| CN111653865A (en) * | 2019-12-03 | 2020-09-11 | 摩登汽车有限公司 | Vehicle-mounted antenna structure and automobile flow guide plate |
| CN113126078A (en) * | 2019-12-30 | 2021-07-16 | 北京华航无线电测量研究所 | Method for realizing miniaturization of Doppler radar |
| CN111834742A (en) * | 2020-06-08 | 2020-10-27 | 惠州市德赛西威智能交通技术研究院有限公司 | Vehicle-mounted millimeter wave radar array antenna |
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| CN111816969A (en) * | 2020-06-22 | 2020-10-23 | 星展测控科技股份有限公司 | Connecting waveguide and transmitting-receiving integrated equipment |
| WO2022127397A1 (en) * | 2020-12-16 | 2022-06-23 | Oppo广东移动通信有限公司 | Radio frequency transceiving system and communication device |
| CN113013583A (en) * | 2021-01-29 | 2021-06-22 | 中国电子科技集团公司第三十八研究所 | Millimeter wave radar packaging module |
| CN113013583B (en) * | 2021-01-29 | 2023-08-18 | 中国电子科技集团公司第三十八研究所 | Millimeter wave radar packaging module |
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