CN107026309A - Antenna module and wagon detector - Google Patents
Antenna module and wagon detector Download PDFInfo
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- CN107026309A CN107026309A CN201710386265.3A CN201710386265A CN107026309A CN 107026309 A CN107026309 A CN 107026309A CN 201710386265 A CN201710386265 A CN 201710386265A CN 107026309 A CN107026309 A CN 107026309A
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- 230000005540 biological transmission Effects 0.000 claims description 19
- 238000004891 communication Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
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- 230000005855 radiation Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000010287 polarization Effects 0.000 description 1
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Classifications
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/40—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for measuring magnetic field characteristics of the earth
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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
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention provides a kind of antenna module and wagon detector, including：Substrate, the first radiant body, the second radiant body and antenna holder；Substrate is located at the lower end of antenna holder；First radiant body and the second radiant body are arranged on antenna holder, and the first radiant body and the second radiant body are connected；Distributing point and earth point are provided with substrate；First radiant body is electrically connected with distributing point, and the second radiant body is electrically connected with earth point；First " Г " type fluting, the frequency bandwidth for increasing antenna module are provided with first radiant body；Second " Г " type fluting, the gain for increasing antenna module are additionally provided with first radiant body；It uses two radiant bodies, and sets two " Г " types to slot on the first radiant body, to reduce echo damage, standing-wave ratio is improved, increases notch depth, so that while geomagnetism detecting device size is matched, antenna gain is improved, so as to improve wireless signal strength, communication quality is improved.
Description
Technical field
The present invention relates to technology for radio frequency field, in particular to a kind of antenna module and wagon detector.
Background technology
Data collecting system plays very important effect, the key component of data collecting system in traffic surveillance and control system
It is geomagnetism detecting device, geomagnetism detecting device is generally embedded in underground when in use, is operated in pattern-band, for collection vehicle Information Number
Radio communication is carried out according to and with upper end equipment.Wherein, above-mentioned geomagnetism detecting device typically using vertical polarization spring antenna or
PCB (Printed Circuit Board, printed circuit board) antenna, signal communication is carried out with the said equipment.
But, because the wavelength of the pattern-band of Antenna Operation in geomagnetism detecting device is longer, and antenna size and wavelength into
Direct ratio, wants antenna and reaches preferable gain, the size of antenna needs to reach a certain size, and due to geomagnetism detecting device and other places
The size of buried equipment in itself is smaller, which limits the size of its antenna used, so as to limit the gain of antenna.Together
When, because geomagnetism detecting device is buried equipment, the directional diagram of antenna in geomagnetism detecting device can be greatly influenceed, so as to influence antenna
Main lobe gain, in this in the case of, antenna can only apply the low gain of secondary lobe, and this results in the spring day of existing application
The gain of line or PCB antenna is unable to reach requirement.
Inventor has found under study for action, for antenna in existing geomagnetism detecting device size by geomagnetism detecting device in itself
The influence of size is larger so that the gain of antenna is unable to reach the problem of requiring, preferable settling mode is not yet proposed at present.
The content of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of antenna module and wagon detector, can
While with geomagnetism detecting device size, antenna gain is improved.
In a first aspect, the embodiments of the invention provide a kind of antenna module, including：Substrate, the first radiant body, the second radiation
Body and antenna holder；
The substrate is located at the lower end of the antenna holder；First radiant body and second radiant body are arranged at
On the antenna holder, and first radiant body is connected with second radiant body；
Distributing point and earth point are provided with the substrate；First radiant body is electrically connected with the distributing point, described
Second radiant body is electrically connected with the earth point；
First " Г " type fluting, the frequency bandwidth for increasing antenna module are provided with first radiant body；It is described
Second " Г " type fluting, the gain for increasing antenna module are additionally provided with first radiant body.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, institute
The first radiant body is stated to be arranged in the first plane of the antenna holder；
Second radiant body is arranged in the second plane of the antenna holder, second plane and described first flat
Face is adjacent and in 90 degree of angles.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide second of first aspect
Possible embodiment, wherein, the size of first radiant body is more than the size of second radiant body；
First radiant body includes the contact jaw being in contact with second radiant body, the contact jaw and described first
" Г " type fluting is disposed adjacent；
Second " Г " type fluting is located at close to the position of the contact jaw, and is disposed adjacent with the first Г types fluting.
With reference to second of possible embodiment of first aspect, the embodiments of the invention provide the third of first aspect
Possible embodiment, wherein, second " Г " type fluting includes vertical portion and reaping hook portion；
Fixed part is provided with the antenna holder, first radiant body passes through on the fixed part and the substrate
Distributing point is electrically connected；
The vertical portion towards the second plane of the antenna holder extending part in second radiant body and described
Between fixed part.
With reference to the third possible embodiment of first aspect, the embodiments of the invention provide the 4th of first aspect kind
Possible embodiment, wherein, the vertical portion has default radian；The length of the vertical portion is more than the length in the reaping hook portion
Degree, the width of the vertical portion is less than the vertical range between second radiant body and the fixed part.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 5th of first aspect kind, wherein, institute
It is anti-" 7 " type fluting to state second " Г " type fluting.
With reference to first aspect the first possible embodiment into the 5th kind of possible embodiment of first aspect
Any one possible embodiment, the embodiments of the invention provide the possible embodiment of the 6th of first aspect kind, wherein,
The altitude range of the antenna holder is 15mm~30mm.
With reference to first aspect the 6th kind of possible embodiment into the 6th kind of possible embodiment of first aspect
Any one possible embodiment, the embodiments of the invention provide the possible embodiment of the 7th of first aspect kind, wherein,
The height of the antenna holder is 20mm.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide the 8th of first aspect kind
Possible embodiment, wherein, described antenna module also includes governor motion；
The governor motion is arranged in first plane of the antenna holder, and first radiant body is arranged on institute
State on governor motion；
The governor motion is used to adjust the interval height between first radiant body and the substrate.
Second aspect, the embodiment of the present invention additionally provides a kind of wagon detector, including：Described in above-mentioned any one of first party
Antenna module, in addition to single-chip microcomputer；The antenna module and the monolithic mechatronics；
The single-chip microcomputer, which is used to generate, sends signal, and the transmission signal is sent into antenna module；
The antenna module is used to receive the transmission signal, and the transmission signal is sent into upper end equipment；And, connect
The reception signal that the upper end equipment is sent is received, the reception signal is sent to the single-chip microcomputer；
The single-chip microcomputer is additionally operable to, and is received and is stored the reception signal.
A kind of antenna module and wagon detector provided in an embodiment of the present invention, using substrate, the first radiant body, the second spoke
Four parts of beam and antenna holder；The substrate is located at the lower end of antenna holder；First radiant body and the second radiant body are all provided with
Put on antenna holder, and the first radiant body and the second radiant body are connected；Distributing point and earth point are provided with substrate；First
Radiant body is electrically connected with distributing point, and the second radiant body is electrically connected with earth point；First " Г " type is provided with first radiant body to open
Groove, the frequency bandwidth for increasing antenna module；Second " Г " type fluting is additionally provided with first radiant body, for increasing antenna
Antenna is size-constrained in geomagnetism detecting device size itself in the gain of component, with geomagnetism detecting device of the prior art so that
The gain of antenna is unable to reach requirement and compared, and it uses two radiant bodies, and sets two " Г " types to open on the first radiant body
Groove, to reduce echo damage, improves standing-wave ratio, increases notch depth, so as to while geomagnetism detecting device size is matched, carry
High antenna gain, so as to improve wireless signal strength, improves communication quality.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows a kind of structural representation for antenna module that the embodiment of the present invention is provided；
Fig. 2 and Fig. 4 show the stereogram of the antenna module under all angles；
Fig. 3 shows that the embodiment of the present invention provides the front view of antenna module；
Fig. 5 shows the aerial radiation range effect figure that the embodiment of the present invention is provided；
The upper left corner shows the impedance circle diagram of antenna module in Fig. 6, and the upper right corner shows the return loss plot of antenna module,
Following diagrams illustrate the schematic diagram of the middle voltage standing wave ratio of antenna module；
Fig. 7 shows gain test data of the antenna module provided in an embodiment of the present invention in different frequency.
Icon：10th, substrate；11st, the first radiant body；12nd, the second radiant body；13rd, antenna holder；14th, feeding microstrip line；
15th, earth point connection end；16th, first " Г " type is slotted；17th, second " Г " type is slotted.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Middle accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
It is a part of embodiment of the invention, rather than whole embodiments.The present invention being generally described and illustrated herein in the accompanying drawings is real
Applying the component of example can be arranged and be designed with a variety of configurations.Therefore, it is of the invention to what is provided in the accompanying drawings below
The detailed description of embodiment is not intended to limit the scope of claimed invention, but is merely representative of the selected reality of the present invention
Apply example.Based on embodiments of the invention, the institute that those skilled in the art are obtained on the premise of creative work is not made
There is other embodiment, belong to the scope of protection of the invention.
In view of in existing geomagnetism detecting device antenna it is size-constrained in geomagnetism detecting device size itself so that antenna
Gain be unable to reach the problem of requiring.The embodiments of the invention provide a kind of antenna module and wagon detector, below by
Embodiment is described.
The present invention is implemented there is provided a kind of antenna module, with reference to Fig. 1~Fig. 4, including：Substrate 10, the first radiant body 11,
Second radiant body 12 and antenna holder 13；
Substrate 10 is located at the lower end of antenna holder 13；First radiant body 11 and the second radiant body 12 are arranged at antenna holder
On 13, and the first radiant body 11 is connected with the second radiant body 12；
Distributing point and earth point are provided with substrate 10；First radiant body 11 is electrically connected with distributing point, the second radiant body 12
Electrically connected with earth point；
First " Г " type, 16 (i.e. inverted "L" shaped flutings) of fluting are provided with first radiant body 11, for increasing antenna module
Frequency bandwidth；Second " Г " type fluting 17, the gain for increasing antenna module are additionally provided with first radiant body 11.
Specifically, the effect of above-mentioned antenna holder 13 is supported for antenna.As an alternative embodiment,
Above-mentioned antenna holder 13 includes top plate (following first planes of bottom plate correspondence), and the top plate is rectangular, and four sides of the top plate
On be vertically connected with four wallboards, be integrally formed between above-mentioned bottom plate and four wallboards.The opposite face of i.e. above-mentioned top plate is
One openend, aforesaid substrate 10 is located in the openend, is not connected with above-mentioned antenna holder 13, it is therefore an objective to avoid allowing substrate 10
Stress.As a kind of application implementation mode, above-mentioned antenna holder 13 is fixed on the shell of wagon detector.
As alternatively possible embodiment, aforesaid substrate 10 is located in the openend, is connected with antenna holder 13.
Specifically, aforesaid substrate 10 and antenna holder 13 are fixedly installed in four wallboards, or it is fixedly installed on any two phase
To wallboard on.
Above-mentioned first radiant body 11 and the second radiant body 12 are actually the entirety being connected, and the two is arranged at antenna
On support 13.The size of above-mentioned first radiant body 11 is related to its tranmitting frequency, is determined with specific reference to its tranmitting frequency.
In the embodiment of the present invention, antenna module also includes feeding microstrip line 14 (being all referred to as feeder line below), above-mentioned feedback
Distributing point in one end connecting substrate 10 of line, first spoke of its other end through antenna holder 13 and on antenna holder 13
Beam 11 is connected, and the first radiant body 11 is sent to minimum loss for the signal power that sends substrate 10, or by first
The signal that radiant body 11 is received is sent to substrate 10 with minimum loss, while feeder line does not pick up or produced in itself clutter interference
Signal.Specifically, the altitude range of distributing point to the first radiant body 11 on substrate 10 is 15mm-30mm.
Specifically, the one end of above-mentioned second radiant body 12 away from the first radiant body 11 passes through above-mentioned antenna holder 13 and substrate
Earth point electrical connection on 10.As the first optional embodiment, earth point connection end 15 is provided with antenna holder 13,
Earth point connection end 15 is electrically connected with the earth point on substrate 10；The one end of second radiant body 12 away from the first radiant body 11 is with connecing
Place connection end 15 is connected, and is electrically connected by earth point connection end 15 with the earth point on substrate 10.Specifically, substrate 10
On earth point to the first radiant body 11 height for 20mm or so.It is used as second of optional embodiment, antenna holder 13
On be provided with earth point connection end 15, the one end of above-mentioned second radiant body 12 away from the first radiant body 11 passes through above-mentioned antenna holder
Earth point connection end 15 is provided with 13, and is electrically connected with the earth point on substrate 10.
Aforesaid substrate 10 is used to send signal to the first radiant body 11 and the second radiant body 12 by distributing point, and passes through feedback
Electricity point receives the signal that the first radiant body 11 and the second radiant body 12 are sent, and the signal is transmitted and (such as applies and is examined in vehicle
Substrate 10 in the antenna module surveyed in device, antenna module transmits the signal to single-chip microcomputer)；Aforesaid substrate 10 is used to carry out instead
Feedback signal.
Two " Г " types are set to slot in the embodiment of the present invention, including first " Г " type fluting 16 and second " Г " type fluting
17；Above-mentioned first " Г " type fluting 16, the frequency bandwidth for increasing antenna module, so that antenna module can be with using more
Frequency bandwidth transmission signal；Above-mentioned second " Г " type fluting 17, can reduce echo damage, improve standing-wave ratio, and increase resonance is deep
Degree, so as to while geomagnetism detecting device size is matched, improve antenna gain.
Further, with reference to Fig. 2~Fig. 4, in antenna module provided in an embodiment of the present invention, the first radiant body 11 is arranged on
In first plane of antenna holder 13；
Second radiant body 12 is arranged in the second plane of antenna holder 13, and the second plane is adjacent with the first plane and in 90
Spend angle.
In the embodiment of the present invention, the first radiant body 11 is arranged in the first plane of antenna holder 13, the second radiant body 12
It is arranged in the second plane of antenna holder 13.Above-mentioned first plane and the bottom surface of above-mentioned antenna holder 13 are oppositely arranged, above-mentioned
Second plane is adjacent with the first plane and in 90 degree of angles.
In the embodiment of the present invention, the top plate of above-mentioned antenna holder 13 towards the plane in outside be above-mentioned first plane；And with
Above-mentioned first plane is adjacent and can correspond to four in any one above-mentioned antenna holder 13 in the second plane of 90 degree of angles
Wallboard is towards the plane in outside, and the embodiment of the present invention chooses wherein any one second plane.
Further, with reference to Fig. 2, in antenna module provided in an embodiment of the present invention, the first radiant body 11 is main radiator,
Second radiant body 12 for coordinate the first radiant body 11 from radiant body, the size of the first radiant body 11 is more than the second radiant body 12
Size；
First radiant body 11 includes the contact jaw being in contact with the second radiant body 12, contact jaw and first " Г " type fluting 16
It is disposed adjacent；
Second " Г " type fluting 17 is located at contact jaw nearby (i.e. positioned at the position close to contact jaw), and opened with the first Г types
Groove is disposed adjacent.
Further, with reference to Fig. 2~Fig. 3, in antenna module provided in an embodiment of the present invention, second " Г " type fluting 17 is wrapped
Include vertical portion and reaping hook portion；
Fixed part is provided with antenna holder 13, the first radiant body 11 passes through the distributing point in fixation portions and substrate 10
Electrical connection；
Vertical portion towards the second plane of antenna holder 13 extending part between the second radiant body 12 and fixed part.
Specifically, in " Г " type fluting, vertical portion is vertical portion, lateral part is reaping hook portion.It is optional as the first
Embodiment, fixed part is provided with above-mentioned antenna holder 13, above-mentioned feeder line is 1, one end connecting substrate of above-mentioned feeder line
Distributing point on 10, the other end of the feeder line is electrically connected through fixation portions with the distributing point on substrate 10.
As second of optional embodiment, fixed part is provided with above-mentioned antenna holder 13, above-mentioned feeder line is two,
Wherein, consolidating on the distributing point in one end connecting substrate 10 of first feeder line, the other end connection antenna holder 13 of the feeder line
Portion is determined, to realize that fixed part is electrically connected with the distributing point on substrate 10；On one end connection antenna holder 13 of Article 2 feeder line
Fixed part, the other end of the feeder line is connected with the first radiant body 11 on antenna holder 13, to realize fixed part and distributing point electricity
Connection.
Second " Г " type fluting 17 is arranged on the first radiant body 11 of the first plane of antenna holder 13, its vertical portion court
To antenna holder 13 the second plane extending part between the second radiant body 12 and the vertical range of fixed part.
Further, with reference to Fig. 1~Fig. 3, in antenna module provided in an embodiment of the present invention, vertical portion has default arc
Degree；The length of vertical portion is more than the length in reaping hook portion, and the width of vertical portion is less than hanging down between the second radiant body 12 and fixed part
Straight distance.
Specifically, the length and width for 17 vertical portion of being slotted based on second " Г " type, determines the length and width in reaping hook portion
Degree；The length in above-mentioned reaping hook portion is less than the length of vertical portion, and its width is to be adjusted as needed, is used as a kind of preferred reality
Mode is applied, the width in above-mentioned reaping hook portion is more than the width of vertical portion.
As an alternative embodiment, above-mentioned second " Г " type fluting 17 is anti-" 7 " type fluting.Specifically, above-mentioned
Instead " 7 " type is the mirror-image structure of " 7 " in vertical direction.
Further, the above-mentioned transmission signal of first radiant body 11 both includes horizontal component, and vertical component, inventor are included again
Find that antenna height can influence the ratio of above-mentioned horizontal component and vertical component under study for action, therefore, in the embodiment of the present invention, day
The altitude range of line bracket 13 is 15mm~30mm, can adjust above-mentioned water by adjusting the altitude range of above-mentioned antenna holder 13
The ratio of the amount of dividing equally and vertical component, with improve the standard or vertical direction gain.As a kind of preferred application implementation mode,
The height of above-mentioned antenna holder 13 is 20mm, and the height of the antenna holder 13 makes the first radiant body 11 and the correspondence of the second radiant body 12
The ratio of horizontal component and vertical component is optimal, disclosure satisfy that practical application needs.
It is corresponding, the embodiments of the invention provide two kinds of structures to adjust the distance of the first radiant body 11 and the height of substrate 10
Degree.
The first structure：Antenna module provided in an embodiment of the present invention also includes governor motion；Above-mentioned governor motion is set
In the first plane of antenna holder 13, above-mentioned first radiant body 11 is arranged on governor motion, and above-mentioned governor motion is used to adjust
Save the interval height between the first radiant body 11 and substrate 10.
The horizontal component and vertical component that transmission signal includes are certain, specifically, working as the distance of the first radiant body 11
When being turned down with the height of substrate 10 (adjust the distance of the first radiant body 11 with the distance of substrate 10 by far becoming near when), hair is improved
The vertical component of signal is penetrated, the horizontal component of transmission signal is reduced；
When the distance of the first radiant body 11 and the height of substrate 10 are tuned up (adjust the first radiant body 11 apart from substrate
When 10 distance is by closely becoming remote), the horizontal component of transmission signal is improved, the vertical component of transmission signal is reduced.
Second of structure：In antenna module provided in an embodiment of the present invention, substrate 10 be located at antenna holder 13 lower end and
It is connected with antenna holder 13；Antenna holder 13 is multiple；The height of each antenna holder 13 is different.
Corresponding to second of structure, when needing to adjust the interval height between the distance of the first radiant body 11 and substrate 10,
The antenna holder 13 of matching is selected from multiple antenna holders 13 according to demand, is then replaced and worked as by the antenna holder 13 of selection
The preceding antenna holder 13 used.
Specifically, when the distance of the first radiant body 11 and the height of substrate 10 in the antenna holder 13 changed, than currently used
Antenna holder 13 in the distance of the first radiant body 11 and substrate 10 height hour (adjust the first radiant body 11 apart from substrate
When 10 distance is by far becoming near), the vertical component of transmission signal is improved, the horizontal component of transmission signal is reduced；
When the distance of the first radiant body 11 and the height of substrate 10 in the antenna holder 13 of replacing, than currently used antenna branch
In frame 13 distance of first radiant body 11 and (distance of the first radiant body 11 and the distance of substrate 10 are adjusted during the big height of substrate 10
During by closely becoming remote), the horizontal component of transmission signal is improved, the vertical component of transmission signal is reduced.
Or, corresponded on each antenna holder 13 first in a complete antenna module, and each antenna module
The distance of radiant body 11 is different from the height of substrate 10, can select antenna module by mission need as needed, pass through selection
Antenna module, signal is launched.
Specifically, with reference to Fig. 5 and Fig. 6, Fig. 5 shows the aerial radiation range effect figure that the embodiment of the present invention is provided；
The upper left corner shows the impedance circle diagram of antenna module in Fig. 6, and the upper right corner shows the return loss plot of antenna module, under illustrate
The schematic diagram of the middle voltage standing wave ratio of antenna module；Fig. 7 shows antenna module provided in an embodiment of the present invention in different frequencies
The gain test data of rate.
Display practical impedance is basic near 50 ohm in above-mentioned impedance diagram circle diagram (i.e. the figure in Fig. 6 upper left corners).Above-mentioned time
It is most not good enough also greater than -14db that ripple loss figure (i.e. the figure in Fig. 6 upper right corner) is shown in frequency range (470Mhz-510Mhz) S11.
Voltage standing wave ratio (VSWR) (i.e. Fig. 6 figure below) is shown in VSWR in frequency range and meets demand less than 1.5.
By above-mentioned antenna module, 500M wireless signal gains can be being improved, improve wireless signal strength, improve communication
Quality.
The embodiment of the present invention additionally provides a kind of wagon detector, and the wagon detector includes above-mentioned antenna module, also wraps
Include single-chip microcomputer, above-mentioned antenna module and monolithic mechatronics.Also include single-chip microcomputer；Antenna module and monolithic mechatronics；
Single-chip microcomputer, which is used to generate, sends signal, will send signal and is sent to antenna module；
Antenna module, which is used to receive, sends signal, will send signal and is sent to upper end equipment；And, end equipment is sent out in reception
The reception signal sent, will receive signal and is sent to single-chip microcomputer；
Single-chip microcomputer is additionally operable to, and is received and is stored reception signal.
Specifically, wagon detector is produced by single-chip microcomputer sends signal, the transmission signal of generation is sent to by single-chip microcomputer
Above-mentioned antenna module, the transmission signal by above-mentioned antenna module launched and (be specifically sent to upper end equipment, such as receiver)；
Also, above-mentioned antenna module also receives the reception signal that end equipment (being specially receiver) is sent, and the reception signal is sent
To single-chip microcomputer；Single-chip microcomputer receives the reception signal and stored, and the reception signal is handled accordingly.
A kind of wagon detector provided in an embodiment of the present invention, using substrate 10, the first radiant body 11, the second radiant body 12
With 13 4 parts of antenna holder；Substrate 10 is located in antenna holder 13；First radiant body 11 and the second radiant body 12 are respectively provided with
On antenna holder 13, and the first radiant body 11 is connected with the second radiant body 12；Distributing point and ground connection are provided with substrate 10
Point；First radiant body 11 is electrically connected with distributing point, and the second radiant body 12 is electrically connected with earth point；It is provided with first radiant body 11
First " Г " type fluting 16, the frequency bandwidth for increasing antenna module；Second " Г " type is additionally provided with first radiant body 11
Fluting 17, the gain for increasing antenna module, with geomagnetism detecting device of the prior art antenna it is size-constrained in earth magnetism
Detector itself size so that the gain of antenna is unable to reach requirement and compared, it uses two radiant bodies, and in the first radiant body
Set two " Г " types to slot on 11, to reduce echo damage, improve standing-wave ratio, increase notch depth, so that matchingly
While magnetic detector size, antenna gain is improved, so as to improve wireless signal strength, communication quality is improved.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing, in addition, term " the
One ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating or implying relative importance.
Finally it should be noted that：Embodiment described above, is only the embodiment of the present invention, to illustrate the present invention
Technical scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those within the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of technical scheme of the embodiment of the present invention.The protection in the present invention should all be covered
Within the scope of.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of antenna module, it is characterised in that including：Substrate, the first radiant body, the second radiant body and antenna holder；
The substrate is located at the lower end of the antenna holder；First radiant body and second radiant body are arranged at described
On antenna holder, and first radiant body is connected with second radiant body；
Distributing point and earth point are provided with the substrate；First radiant body is electrically connected with the distributing point, and described second
Radiant body is electrically connected with the earth point；
First " Г " type fluting, the frequency bandwidth for increasing antenna module are provided with first radiant body；Described first
Second " Г " type fluting, the gain for increasing antenna module are additionally provided with radiant body.
2. antenna module according to claim 1, it is characterised in that first radiant body is arranged on the antenna holder
The first plane on；
Second radiant body is arranged in the second plane of the antenna holder, second plane and the first plane phase
It is adjacent and in 90 degree of angles.
3. antenna module according to claim 2, it is characterised in that the size of first radiant body is more than described second
The size of radiant body；
First radiant body includes the contact jaw being in contact with second radiant body, the contact jaw and described first " Г "
Type fluting is disposed adjacent；
Second " Г " type fluting is located at close to the position of the contact jaw, and is disposed adjacent with the first Г types fluting.
4. antenna module according to claim 3, it is characterised in that second " Г " type fluting includes vertical portion and sickle
Knife portion；
Fixed part is provided with the antenna holder, first radiant body passes through the feed on the fixed part and the substrate
Point electrical connection；
The vertical portion towards the second plane of the antenna holder extending part in second radiant body and the fixation
Between portion.
5. antenna module according to claim 4, it is characterised in that the vertical portion has default radian；It is described vertical
The length in portion is more than the length in the reaping hook portion, the width of the vertical portion be less than second radiant body and the fixed part it
Between vertical range.
6. antenna module according to claim 1, it is characterised in that second " Г " type fluting is anti-" 7 " type fluting.
7. the antenna module according to claim any one of 2-6, it is characterised in that the altitude range of the antenna holder is
15mm~30mm.
8. antenna module according to claim 7, it is characterised in that the height of the antenna holder is 20mm.
9. antenna module according to claim 2, it is characterised in that also including governor motion；
The governor motion is arranged in first plane of the antenna holder, and first radiant body is arranged on the tune
Save in mechanism；
The governor motion is used to adjust the interval height between first radiant body and the substrate.
10. a kind of wagon detector, it is characterised in that including：Antenna module described in claim any one of 1-9, in addition to
Single-chip microcomputer；The antenna module and the monolithic mechatronics；
The single-chip microcomputer, which is used to generate, sends signal, and the transmission signal is sent into antenna module；
The antenna module is used to receive the transmission signal, and the transmission signal is sent into upper end equipment；And, receive institute
The reception signal of end equipment transmission is stated, the reception signal is sent to the single-chip microcomputer；
The single-chip microcomputer is additionally operable to, and is received and is stored the reception signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710386265.3A CN107026309B (en) | 2017-05-26 | 2017-05-26 | Antenna assembly and vehicle detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710386265.3A CN107026309B (en) | 2017-05-26 | 2017-05-26 | Antenna assembly and vehicle detector |
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| CN107026309A true CN107026309A (en) | 2017-08-08 |
| CN107026309B CN107026309B (en) | 2024-04-19 |
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| CN113904106A (en) * | 2021-09-28 | 2022-01-07 | 深圳市英佳创电子科技有限公司 | Antenna internally arranged in wireless network terminal equipment |
| CN115663465A (en) * | 2022-09-14 | 2023-01-31 | 昆山联滔电子有限公司 | Antenna structure and communication equipment |
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