CN208753516U - Ultrawide band high performance omnidirectional car antenna - Google Patents
Ultrawide band high performance omnidirectional car antenna Download PDFInfo
- Publication number
- CN208753516U CN208753516U CN201821548394.4U CN201821548394U CN208753516U CN 208753516 U CN208753516 U CN 208753516U CN 201821548394 U CN201821548394 U CN 201821548394U CN 208753516 U CN208753516 U CN 208753516U
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- bottom plate
- radiant
- radiant panel
- high performance
- antenna
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Abstract
The utility model discloses a kind of ultrawide band high performance omnidirectional car antenna, wherein, including bottom plate, radio frequency connector and radiating element, wherein, radiating element includes the radiant panel of two right-angled intersections and the cover board that is covered on above two radiant panels, and two radiant panels are vertically located on bottom plate；Radiant panel is equipped with corner cut close to one end of bottom plate, and leads to parasitic tuning piece to bottom plate side from corner cut, and the inner core of radio frequency connector passes through the bottom feedback feed connection of bottom plate and two radiant panels.The radiant panel that the utility model ultrawide band high performance omnidirectional's car antenna passes through two right-angled intersections of setting, electric current is introduced by radio frequency connector, so that the electromagnetic wave that the electric current on radiant panel generates in space is in sphere radiation, realize the isotropic directivity of radiation, and extraction is arranged cover board on two radiant panels, is adjustable electrical length towards the parasitic tuning piece of bottom plate side at the corner cut of radiant panel, nature reactance is tuned, so that radiating element and radio frequency connector impedance matching.
Description
Technical field
The utility model relates to antenna technical field, in particular to a kind of ultrawide band high performance omnidirectional car antenna.
Background technique
Antenna is component part important in wireless communication system as the device for emitting and receiving electromagnetic wave.In the modern times
In military channels, for the requirement of secret communication, frequency hopping and spread spectrum are widely used.And these communication skills
The application of art has higher requirement to antenna.The beamwidth of antenna refers to frequency range when antenna performance index meets design requirement.
For broad-band antenna, bandwidth is usually indicated with the ratio between upper limiting frequency and lower frequency limit.As the leap of electronic technology is sent out
The broadband technology of the appearance of exhibition and wideband Communication apparatus, broad-band antenna and antenna is also evolving, and is realized at present broadband
Technology mainly has Wide band array antenna, broadband travelling-wave aerial, non-deformation antenna, and uses antenna matching network, in addition to this,
The multimode operation mode of antenna, combination technique can also be used, antenna fractal technology etc. broadens the bandwidth of antenna.And it should
It realizes the miniaturization of antenna, realizes the broadband of antenna again, the design of antenna this kind of in general is relatively difficult.This is
Because free space wavelength is constant, device of the another aspect antenna as free space energy coupling on the one hand when frequency determines
Part, electrical property are directly limited by geometric dimension, the result is that the directivity factor of antenna, impedance, bandwidth etc. and antenna
Geometric dimension constitutes contradiction.Based on the Modern Communication System of frequency hop spread spectrum to the omnidirectional radiation characteristic and broadband character of antenna
More stringent requirements are proposed.
Ultra-wideband omni-directional antenna is exactly a selection well.However on high band, adopt in most cases at present
There is limit for height without load ultra-wideband omni-directional antenna.But since this has limit for height without load its input impedance of ultra-wideband omni-directional antenna
With resonance frequency acute variation, and hardly possible is matched with 50 ohm of feeding coaxial lines, is caused its narrower bandwidth section larger and is difficult to reality
Existing omnidirectional radiation.Such as common RLC ultra-wideband omni-directional antenna, although the RLC ultra-wideband omni-directional antenna can accomplish wider band
Width, but its electrical length is unfavorable for realizing the low section of antenna up to 1/6th wavelength.And equivalent ultra-wideband omni-directional antenna electricity
Although length is smaller, it, which is radiated, has stronger directionality, it is difficult to realize omnidirectional radiation.Under the conditions of current technology, think
When covering entire communications band and realizing omnidirectional radiation, generally requires a few width antennas and work at the same time, however due to the phase between antenna
Mutual coupling effect, so that the performance of entire antenna system substantially reduces.Therefore, for the omnidirectional of the realization antenna on common antenna
Radiation effect and there is excellent impedance matching to be of great significance simultaneously.
Utility model content
The main purpose of the utility model is to propose a kind of ultrawide band high performance omnidirectional car antenna, it is desirable to provide a kind of tool
There is the ultrawide band high performance omnidirectional car antenna of excellent impedance matching.
To achieve the above object, the utility model proposes ultrawide band high performance omnidirectional car antenna, including bottom plate, radio frequency
Connector and radiating element, wherein the radiating element includes the radiant panel of two right-angled intersections and is covered on two radiant panels
The cover board of top, and two radiant panels are vertically located on the bottom plate；The radiant panel is set close to one end of the bottom plate
There is corner cut, and lead to parasitic tuning piece to the bottom plate side from the corner cut, the inner core of the radio frequency connector passes through
The bottom plate is connect with the base drive of two radiant panels.
Preferably, two radiant panels be equipped with the first positioning region, the cover board be equipped with the second positioning region, described first
Positioning region and second positioning region limit cooperate with by the cover board limit above two radiant panels, and the cover board with
The two radiant panel welding.
Preferably, first positioning region is protrusion, and is set to the top of two radiant panels, and second positioning region is
Connecting hole, the protrusion is in the connecting hole the cover board is set to the two radiant panel tops.
Preferably, the thickness that width is the radiant panel is offered in the middle part of a radiant panel and along the radiant panel
Length direction runs through the caulking groove of the radiant panel top margin；
The thickness that width is the radiant panel is offered in the middle part of another radiant panel and along the length of the radiant panel
The slot on the radiant panel bottom edge is run through in direction；
The caulking groove and slot cooperation are so that two radiant panels are in cross-shaped.
Preferably, the bottom plate is reflecting plate.
Preferably, the utility model ultrawide band high performance omnidirectional car antenna further includes multiple fixed codes, each described solid
Determine code one end to be fixedly connected with the radiant panel, the other end is fixedly connected with the bottom plate, by the fixed company of two radiant panels
It connects on the bottom plate.
Preferably, two radiant panels are equipped with corner cut far from one end of the bottom plate.
Preferably, the utility model further includes antenna house, and the antenna house is the dome shape of bottom end opening, the antenna house
It is mounted on the bottom plate, the radiating element is packaged in the antenna house.
Preferably, the utility model ultrawide band high performance omnidirectional car antenna further includes rubber mat, the rubber mat and the bottom
Plate is adapted, and the bottom plate is set between the rubber mat and the open end of the antenna house.
Preferably, the length of the radiant panel is quarter-wave；The cover board is circular cover, and the cover board
The a length of half wavelength of circumference.
The utility model ultrawide band high performance omnidirectional's car antenna passes through the radiant panel of two right-angled intersections of setting, by radio frequency
Connector introduces electric current, so that the electromagnetic wave that the electric current on radiant panel generates in space realizes the complete of radiation in sphere radiation
Directionality.And extraction, can be to electrical length be increased towards the parasitic tuning piece of bottom plate side at the corner cut of radiant panel, improvement is stayed
Bobbi and impedance bandwidth, thus impedance matching；Cover board is set on two radiant panels, on the one hand makes the top of two radiant panels short
Road plays the role of increasing induction reactance, the open-circuit structure on two radiant panel tops is offset and the capacitive reactance that generates, so that impedance matching, another
Aspect makes cover board be equivalent to a metallic shield net, the scattering of two radiant panel top electric currents is blocked, so that radiated electromagnetic wave is more
It concentrates, to optimize the radiation direction of antenna and expand its bandwidth.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of the utility model ultrawide band high performance omnidirectional car antenna；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 is the structural schematic diagram of a radiant panel in Tu1Zhong ultrawide band high performance omnidirectional car antenna；
Fig. 4 is the structural schematic diagram of another radiant panel in Tu1Zhong ultrawide band high performance omnidirectional car antenna；
Fig. 5 is the structural schematic diagram of Tu1Zhong ultrawide band high performance omnidirectional car antenna cover plate；
Fig. 6 is the structural schematic diagram of rubber mat in Tu1Zhong ultrawide band high performance omnidirectional car antenna.
Drawing reference numeral explanation:
| Label | Title | Label | Title | Label | Title |
| 1 | Bottom plate | 311 | First positioning region | 4 | Parasitic tuning piece |
| 2 | Radio frequency connector | 312 | Caulking groove | 5 | Fixed code |
| 21 | Inner core | 313 | Slot | 6 | Antenna house |
| 3 | Radiating element | 32 | Cover board | 7 | Rubber mat |
| 31 | Radiant panel | 321 | Second positioning region |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture)
Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.In addition, the meaning of the "and/or" occurred in full text is, and including three schemes arranged side by side, by taking " A and/or B " as an example,
The scheme met simultaneously including A scheme or B scheme or A and B.In addition, the technical solution between each embodiment can be mutual
In conjunction with, but must be based on can be realized by those of ordinary skill in the art, when mutual lance occurs in the combination of technical solution
Shield or cannot achieve when, will be understood that the combination of this technical solution is not present, also not in the protection scope of the requires of the utility model
Within.
The utility model proposes a kind of ultrawide band high performance omnidirectional car antennas.It is applied to locomotive system, of course simultaneously more
It is also applicable to the multiple fields such as communication, intercom, wireless transmission
In the utility model embodiment, as shown in Figures 1 and 2, the ultrawide band high performance omnidirectional car antenna, including bottom
Plate 1, radio frequency connector 2 and radiating element 3, wherein radiating element 3 includes the radiant panel 31 of two right-angled intersections and radiates set on two
The cover board 32 of 31 top of plate, and two radiant panels 31 are vertically located on bottom plate 1；Radiant panel 31 is equipped with close to one end of bottom plate 1 and cuts
Angle (does not indicate), and leads to parasitic tuning piece 4, the inner core 21 of radio frequency connector 2 to 1 side of bottom plate from corner cut (not indicating)
It is connect across bottom plate 1 with the base drive of two radiant panels 31.
In the present embodiment, it is to be understood that radio frequency connector 2 and feeding coaxial lines feed connect, and are connected by radio frequency
It connects device 2 and introduces electric current, the electric current that radio frequency connector 2 introduces forms the electric current point of near sinusoidal waveform on every radiant panel 31
Cloth, the electric current on every radiant panel 31 can resolve into unlimited number of current elements, and each of these segment current elements are according to electricity
Electromagnetic wave radiation mechanism can form radiation field in space, and the heavy current that thus two panels radiant panel 31 generates is according to different angles
External radiated electromagnetic wave, and the radiation field of radiant panel 31 is overlapped mutually in space, so that the electromagnetic wave that electric current generates is in sphere spoke
It penetrates.Two pieces of radiant panels 31 can be made mutually interspersed in cross shape by opening up slot or hole on radiant panel 31.Spoke
Penetrating plate 31 can be connected on bottom plate 1 on bottom plate 1 or by using connector by being directly welded at.The utility model ultra-wide
Radiant panel 31 with high-performance omnidirectional car antenna preferably uses copper sheet.
By carrying out corner cut (not indicating) close to one end of bottom plate 1 in radiant panel 31, the angle of preferred corner cut (not indicating)
Degree is 38 degree, can so improve radiation current trend, so that impedance converts gentle transition at feed, thus spread bandwidth.Bottom plate 1
Connect with ground, parasitic tuning piece 4 introduced at corner cut (not indicating), then electric current on parasitic tuning piece 4 generate to bottom plate 1
Radiated electric field can improve standing-wave ratio and impedance bandwidth to electrical length is increased, offset two radiant panels 31 close to the side of bottom plate 1
With the capacitive reactance of bottom plate 1, thus impedance matching.In order to enable impedance matching effect is more preferable, parasitic tuning piece 4 extends close to radiation
The position of the bottom end end face of plate 31.Cover board 32 is metal cover board 32, it is therefore preferable to copper.Make two disc by metal cover board 32
On the one hand top short circuit makes the top short circuit of two radiant panels 31, plays the role of increasing induction reactance, offset two radiant panels, 31 top
Open-circuit structure and the capacitive reactance generated block so that impedance matching, on the other hand makes cover board 32 be equivalent to a metallic shield net
The scattering of two radiant panels, 31 top electric current is conducive to improve the vehicle-mounted day of ultrawide band high performance omnidirectional so that radiated electromagnetic wave is more concentrated
The out-of-roundness of line, to optimize the radiation direction of antenna and expand its bandwidth.
In one embodiment, radiant panel 31 includes dielectric-slab, the first metal layer and second metal layer, the first metal layer and the
Two metal layers are covered each by the upper and lower surface of dielectric-slab.In this way, radiant panel 31 uses double-sided copper-clad technology, so that antenna is positive and negative
Face can form electric current and outside radiated electromagnetic wave, be further ensured that the omnidirectional radiation of antenna.
The utility model ultrawide band high performance omnidirectional's car antenna passes through the radiant panel 31 of two right-angled intersections of setting, by penetrating
Frequency connector 2 introduces electric current, realizes the isotropic directivity of radiation.And it draws at the corner cut of radiant panel 31 (not indicating) towards bottom plate
The parasitic tuning piece 4 of 1 side sets cover board 32 in two radiant panels, 31 upper cover, so that the impedance of two radiant panels 31 and feeding coaxial lines
Matching is more preferable, and another aspect cover board 32 is equivalent to a metallic shield net, blocks the scattering of two radiant panels, 31 top electric current, so that
Radiated electromagnetic wave is more concentrated, to optimize the radiation direction of antenna and expand its bandwidth.
Further, please with reference to Fig. 3 to Fig. 5, two radiant panels 31 are equipped with the first positioning region 311, set on cover board 32
There is the second positioning region 321, the first positioning region 311 and the limit of the second positioning region 321 cooperate limiting cover board 32 in two radiant panels
31 tops, and cover board 32 and two radiant panels 31 weld.
In the present embodiment, the cooperation for first passing through the first positioning region 311 and the second positioning region 321 limits cover board 32 in spoke
The top of plate 31 is penetrated, next welded cover plate 32 and two radiant panels 31 again, in this way, the weldering for making cover board 32 accurate and more convenient
It connects on radiant panel 31.First positioning region 311 can be hole or protrusion, and it is protrusion or hole that the second positioning region 321 is corresponding, with
So that the two location fit connects.
Specifically, the first positioning region 311 is protrusion, and is set to the top of two radiant panels 31, and the second positioning region 321 is connection
Hole, protrusion is in connecting hole cover board 32 is covered on two radiant panels, 31 top.Preferably, protrusion is rectangle, connecting hole
For slot, when cover board 32 is covered on 31 top of radiant panel, the plate face of protrusion protrusion cover board 32.In this way, to convex when welding
It rises and weld and cover board 32 can be welded on radiant panel 31, so that welding is more convenient quickly.
Further, the middle part of a radiant panel 31 offers width for the thickness of radiant panel 31 and along the length of radiant panel 31
The caulking groove 312 of 31 top margin of direction penetrating radiation plate；It is 31 thickness of radiant panel and edge that the middle part of another radiant panel 31, which offers width,
The slot 313 on 31 bottom edge of length direction penetrating radiation plate of radiant panel 31；Caulking groove 312 and the cooperation of slot 313 are so that two radiation
Plate 31 is in cross-shaped.
In the present embodiment, in order to optimize the radiation direction of antenna, when two radiant panels 31 in it is cross-shaped when, two blocks of spokes
The height for penetrating plate 31 is identical.So, it is to be understood that the depth summation of caulking groove 312 and slot 313 is greater than or equal to radiant panel
The cross-shaped of two radiant panels 31 can be realized in 31 length.Preferably, the depth of caulking groove 312 and slot 313 is radiation
The half of 31 length of plate.So that processing is more convenient, and it is convenient for Combination Welding.So that the width of slot 313 and caulking groove 312
For radiant panel 31 thickness meet so that two radiant panels 31 in it is cross-shaped while the maximum face using radiant panel 31
Product, so that the bandwidth of entire antenna is high, omnidirectional radiation is good.
Further, bottom plate 1 is reflecting plate.The electromagenetic wave radiation of antenna can so be enhanced.
Further, the utility model ultrawide band high performance omnidirectional car antenna further includes multiple fixed codes 5, each fixation
5 one end of code are fixedly connected with radiant panel 31, and the other end is fixedly connected with bottom plate 1, and two radiant panels 31 are fixedly connected on bottom plate 1
On.
In the present embodiment, by opening up fixation hole on radiant panel 31 and on bottom plate 1, radiation is each passed through using screw
Radiant panel 31 and bottom plate 1, are connected to the both ends of fixed code 5 by the fixation hole on plate 31 and bottom plate 1.Use fixed code 5
Fixed radiant panel 31 makes fixing intensity more preferable with bottom plate 1.Preferably, each radiant panel 31 is fixed on by two fixed codes 5
On bottom plate 1, two fixed codes 5 are symmetrically fixed on the two sides of radiant panel 31.
Further, two radiant panels 31 are equipped with corner cut (not indicating) far from one end of bottom plate 1.It so, it is possible further
Improve radiation current trend, impedance at feed is made to convert gentle excessive, spread bandwidth.
Further, the utility model ultrawide band high performance omnidirectional car antenna further includes antenna house 6, and antenna house 6 is bottom
The dome shape of end opening, antenna house 6 are mounted on bottom plate 1, and radiating element 3 is packaged in antenna house 6.
In the present embodiment, antenna house 6 is made of compound glass fiber, and antenna system disposed within can be protected to exempt from
It is influenced by external environment such as storm, ice and snow, sand and dust and solar radiation etc., and there is good electromagnetic wave in electric property
Through characteristic.Antenna house 6 can be bonded on bottom plate 1 by glue, it is preferred to use epoxy resin glue sticking.
Further, please with reference to Fig. 6, the utility model ultrawide band high performance omnidirectional car antenna further includes rubber mat 7,
Rubber mat 7 is adapted with bottom plate 1, and bottom plate 1 is set between rubber mat 7 and the open end of antenna house 6.Rubber mat 7, which is selected, has elasticity, intensity
High rubber material.The antihunt action of buffering stress can be played, while being applied in locomotive system by this single machine sub-antenna
When, additionally it is possible to it prevents from scratching car body.Preferably, the periphery of the open end of antenna house 6 extends outward to form flange, on the one hand makes
Antenna house 6 and the fitting area of bottom plate 1 are bigger, when being bonded using glue with sufficiently big contact area, so that day
Being more firmly mounted between irdome 6 and bottom plate 1；On the other hand make antenna house 6 and the stickiness of bottom plate 1 good, to seal
Waterproof performance is more preferably.It can be used by opening up mounting hole in the flange of antenna house 6, bottom plate 1, the corresponding position of 7 three of rubber mat
Screw sequentially passes through the mounting hole of antenna house 6, bottom plate 1, rubber mat 7 so that entire antenna assembly is fixedly mounted on need position to be mounted
Set, as locomotive roof on.Eight screws are preferably used, and eight screws are in the setting being spaced around the circumferential direction of the flange.
Preferably, the length of radiant panel 31 is quarter-wave.In this way, making entire ultrawide band high performance omnidirectional vehicle-mounted
The impedance matching of antenna is more preferable.Specifically, cover board 32 is circular cover 32, and a length of half wave of circumference of cover board 32
It is long.Circular cover board makes being generally circular in shape for entire antenna assembly, more beautiful.
The size of the utility model ultrawide band high performance omnidirectional car antenna is small, light-weight, frequency of use be 380MHZ~
470MHZ, bandwidth reach 90MHZ, have reached 21%, have from far away been more than traditional beamwidth of antenna, have had the characteristics that ultra wide band.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of ultrawide band high performance omnidirectional car antenna, including bottom plate, radio frequency connector and radiating element, which is characterized in that
The radiating element includes the radiant panel of two right-angled intersections and the cover board that is covered on above two radiant panels, and two radiation
Plate is vertically located on the bottom plate；The radiant panel close to one end of the bottom plate be equipped with corner cut, and from the corner cut to
The bottom plate side leads to parasitic tuning piece, and the inner core of the radio frequency connector passes through the bottom plate and two radiant panels
Base drive connection.
2. ultrawide band high performance omnidirectional as described in claim 1 car antenna, which is characterized in that two radiant panels are equipped with
First positioning region, the cover board be equipped with the second positioning region, first positioning region and second positioning region limit cooperate with
By cover board limit above two radiant panels, and the cover board and two radiant panels weld.
3. ultrawide band high performance omnidirectional as claimed in claim 2 car antenna, which is characterized in that first positioning region is convex
It rises, and is set to the top of two radiant panels, second positioning region is connecting hole, and the protrusion is in the connecting hole
The cover board is set to the two radiant panel tops.
4. ultrawide band high performance omnidirectional as described in claim 1 car antenna, which is characterized in that
The thickness that width is the radiant panel is offered in the middle part of one radiant panel and is passed through along the length direction of the radiant panel
Wear the caulking groove of the radiant panel top margin；
The thickness that width is the radiant panel is offered in the middle part of another radiant panel and along the length direction of the radiant panel
Slot through the radiant panel bottom edge；
The caulking groove and slot cooperation are so that two radiant panels are in cross-shaped.
5. ultrawide band high performance omnidirectional as described in claim 1 car antenna, which is characterized in that the bottom plate is reflecting plate.
6. ultrawide band high performance omnidirectional as described in claim 1 car antenna, which is characterized in that it further include multiple fixed codes,
Each described fixed code one end is fixedly connected with the radiant panel, and the other end is fixedly connected with the bottom plate, by two spokes
Plate is penetrated to be fixedly connected on the bottom plate.
7. ultrawide band high performance omnidirectional as described in claim 1 car antenna, which is characterized in that two radiant panels are far from institute
The one end for stating bottom plate is equipped with corner cut.
8. ultrawide band high performance omnidirectional as described in claim 1 car antenna, which is characterized in that it further include antenna house, it is described
Antenna house is the dome shape of bottom end opening, and the antenna house is mounted on the bottom plate, and the radiating element is packaged in the day
In irdome.
9. ultrawide band high performance omnidirectional as claimed in claim 8 car antenna, which is characterized in that it further include rubber mat, the glue
Pad is adapted with the bottom plate, and the bottom plate is set between the rubber mat and the open end of the antenna house.
10. ultrawide band high performance omnidirectional as in one of claimed in any of claims 1 to 9 car antenna, which is characterized in that described
The length of radiant panel is quarter-wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821548394.4U CN208753516U (en) | 2018-09-20 | 2018-09-20 | Ultrawide band high performance omnidirectional car antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821548394.4U CN208753516U (en) | 2018-09-20 | 2018-09-20 | Ultrawide band high performance omnidirectional car antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208753516U true CN208753516U (en) | 2019-04-16 |
Family
ID=66083655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821548394.4U Expired - Fee Related CN208753516U (en) | 2018-09-20 | 2018-09-20 | Ultrawide band high performance omnidirectional car antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208753516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451733A (en) * | 2020-03-26 | 2021-09-28 | 惠州硕贝德无线科技股份有限公司 | High-roundness vehicle-mounted test terminal antenna |
-
2018
- 2018-09-20 CN CN201821548394.4U patent/CN208753516U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451733A (en) * | 2020-03-26 | 2021-09-28 | 惠州硕贝德无线科技股份有限公司 | High-roundness vehicle-mounted test terminal antenna |
| CN113451733B (en) * | 2020-03-26 | 2023-04-28 | 惠州硕贝德无线科技股份有限公司 | Vehicle-mounted test terminal antenna with high roundness |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 Termination date: 20210920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |