CN207690992U - A kind of onboard WIFI- multiband aerials of OTT set-top box - Google Patents
A kind of onboard WIFI- multiband aerials of OTT set-top box Download PDFInfo
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- CN207690992U CN207690992U CN201721581854.9U CN201721581854U CN207690992U CN 207690992 U CN207690992 U CN 207690992U CN 201721581854 U CN201721581854 U CN 201721581854U CN 207690992 U CN207690992 U CN 207690992U
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Abstract
The utility model discloses a kind of onboard WIFI multiband aerials of OTT set-top box, including set-top box, top box includes CPU platforms, list WIFI chips and onboard antenna, antenna is provided on pcb board, antenna module is arranged into inverted F types structure, and antenna module includes antenna body, first antenna arm, the second antenna arm and feed point, antenna body respectively with first antenna arm and the second antenna arm, second antenna arm is directly welded on pcb board, and first antenna arm is welded on by feed point on pcb board.The onboard WIFI multiband aerials of OTT set-top box of the utility model, antenna is set on pcb board, antenna body, first antenna arm and the second antenna arm are integrally formed, first antenna arm and the second antenna arm are welded on pcb board, realization can be directly on Antenna Design to pcb board, when PCB making sheet, it disposably produces, almost zero cost is put into, and is produced, debugging, consistency is guaranteed, the process in many productions is saved simultaneously, has low cost, consistency high, efficient advantage is suitble to large-scale production.
Description
Technical field
The utility model is related to antenna technical field, specially a kind of onboard WIFI- multiband aerials of OTT set-top box.
Background technology
The antenna of current OTT set-top box, is roughly divided into two kinds of types of attachment, one is external plastic casing antennas, are producing
It needs to reserve the position for installing fixed antenna on product shell, be then installed on pcb board by radio frequency line and IPEX female seats, it is another
Be built-in FPC antenna, pasted antenna on the inner wall of product casing by double faced adhesive tape, at the same be also by radio frequency line and
IPEX female seats are installed on pcb board；Both of these case is required for connecting using radio frequency line, causes complete machine of high cost, and production is adjusted
Examination, installation are inconvenient, the bad guarantee of overall performance consistency.
Invention content
The purpose of this utility model is to provide a kind of onboard WIFI- multiband aerials of OTT set-top box, having can direct handle
It on Antenna Design to pcb board, when PCB making sheet, disposably produces, designs in this way, almost zero cost is put into, and
And production, debugging, consistency is guaranteed, while saving the process advantage in many productions, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the utility model provides the following technical solutions：
A kind of onboard WIFI- multiband aerials of OTT set-top box, including set-top box, top box include CPU platforms, list WIFI cores
Piece and onboard antenna, onboard antenna include pcb board, and the pcb board is mounted on by mounting post on the shell of set-top box, described
It is welded with CPU platforms on pcb board, is welded with single WIFI chips close to the edge of pcb board, antenna is provided on the pcb board,
The antenna includes antenna module and ground level, and antenna module is arranged into inverted F types structure, and antenna module includes antenna master
Body, first antenna arm, the second antenna arm and feed point, the antenna body respectively with first antenna arm and the second antenna arm, antenna
Main body, first antenna arm and the second antenna arm are integrally formed, and second antenna arm is directly welded on pcb board, and first
Antenna arm is welded on by feed point on pcb board.
Preferably, the pcb board is the frequency PCB plate of low-loss high-temperature-resisting.
Preferably, the thickness of the pcb board is 1.2mm.
Preferably, the dielectric constant of the pcb board is 4.4.
Preferably, the structural parameters of antenna module are respectively resonance length L, the height H of antenna and first antenna arm, second
The distance between antenna arm S.
Preferably, antenna resonance length L meets 1/4 λ wavelength of resonant frequency.
Preferably, antenna resonance length L is also the length that PCB copper foil corruption is carved.
Compared with prior art, the utility model has the beneficial effects that：The onboard WIFI- of OTT set-top box of the utility model
Multiband aerial, in pcb board in board making process, copper foil is carved in corruption, is formed designed pcb board and is carried antenna, day is arranged on pcb board
Line, antenna body, first antenna arm and the second antenna arm are integrally formed, and first antenna arm and the second antenna arm are welded on
Pcb board, realization when PCB making sheet, can disposably be produced directly on Antenna Design to pcb board, be designed in this way,
Almost zero cost is put into, and is produced, debugging, and consistency is guaranteed, while saving the process in many productions, in conjunction with monopole
Sub-antenna technology isotype realizes there is low cost, consistency is high, efficient suitable large-scale production.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the return loss plot of the multiple antennas under the different frequency of the utility model.
In figure：1PCB plates, 2CPU platforms, 3 mounting posts, 4 list WIFI chips, 5 antenna bodies, 6 first antenna arms, 7 second
Antenna arm, 8 feed points.
Specific implementation mode
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 describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Refering to fig. 1-2, the utility model provides a kind of technical solution：A kind of OTT set-top box onboard WIFI- multibands day
Line, including set-top box, top box include that CPU platforms 2, list WIFI chips 4 and onboard antenna, onboard antenna include pcb board 1, are utilized
For pcb board 1 in board making process, copper foil is carved in corruption, is formed designed pcb board and is carried antenna, pcb board 1 is the height of low-loss high-temperature-resisting
Frequency pcb board so that pcb board 1 has the low-loss performance of high temperature resistant, and the thickness of pcb board 1 is 1.2mm, the dielectric constant of pcb board 1
It is 4.4, since dielectric constant is more than 3.6 for 4.4 so that pcb board 1 is polar substances, and pcb board 1 is mounted on machine by mounting post 3
On the shell of top box, it is welded with CPU platforms 2 on pcb board 1, single WIFI chips 4, pcb board are welded with close to the edge of pcb board 1
It is provided with antenna on 1, antenna includes antenna module and ground level, and antenna module is arranged into inverted F types structure, inverse-F antenna,
Have many advantages, such as it is small, simple in structure, be easy to matching and cost of manufacture support, short-distance wireless communication field, inverted f can be used
The radiation of antenna i.e. comprising horizontal polarization again include perpendicular polarisation components, so to applied to indoor environment Bluetooth with
The communication standards such as WLAN, due to the scattering of indoor ornament and metope etc. can cause it is mutual between electric field level and vertical polarization
Conversion, i.e. depolarization phenomenon can effectively enhance reception using inverse-F antenna, and antenna module includes antenna body 5, the
One antenna arm 6, the second antenna arm 7 and feed point 8, antenna body 5 respectively with first antenna arm 6 and the second antenna arm 7, antenna body
5, first antenna arm 6 and the second antenna arm 7 are integrally formed, easy to process, at low cost, and the second antenna arm 7 is directly welded at
On pcb board 1, first antenna arm 6 is welded on by feed point 8 on pcb board 1, and the structural parameters of antenna module are respectively resonance length
L, the distance between the height H of antenna and first antenna arm 6, the second antenna arm 7 S, antenna resonance length L are also that PCB copper foils are rotten
The length at quarter is just the length of antenna, and the wifi chip demand of adaptive 2.4 or 5.8G of energy, antenna resonance length L meets
1/4 λ wavelength of resonant frequency, according to the 1/4 λ wavelength mono-pole sub-antenna rules of philosophy that antenna emits, without frequency wave
Long lower antenna length is different, can meet the mission need of multiband, the utility model realization can be directly Antenna Design to PCB
It on plate 1, when PCB making sheet, disposably produces, designs in this way, almost zero cost is put into, and is produced, debugging,
Consistency is guaranteed, while saving the process in many productions, is realized in conjunction with monopole antenna technology isotype, have it is low at
This, consistency is high, efficient suitable large-scale production.
Under different frequency, three kinds of different antennas respectively have return loss, and three kinds of antennas are in frequency 2-3GHz, return loss
Compare approximate, almost the same, for three kinds of antennas when frequency is in 3-4GHz, the first antenna return loss is minimum, close to zero loss,
Second larger with the third aerial loss, and especially in 3.5GHz, return loss value is larger, approximation -22.5dB, in frequency
For 4-5GHz when, the return loss of the first antenna gradually increases, and the return loss situation phase of second and the third antenna
Seemingly, close to zero loss, when frequency is 5-6GHz, the return loss of the first antenna and second of antenna keeps relatively steady,
Variation is little, the return loss value of the first antenna is close to -10dB, and the return loss value of second of antenna is close to 0dB, and third
The return loss value fluctuation of kind antenna is larger, gradually increases before this and slowly becomes smaller, and is returned when being particularly in 5.8GHz or so
Wave loss is maximum, and value reaches -30, and in 6GHz and the return loss of the first antenna is approximate, when frequency is 6-7GHz, the
Three kinds of aerial loss, which reduce, is gradually equal to second of antenna, the first antenna and second of antenna keep relatively steady.
In summary：The onboard WIFI- multiband aerials of OTT set-top box of the utility model, in pcb board 1 in board making process
In, copper foil is carved in corruption, is formed designed pcb board and is carried antenna, antenna, antenna body 5,6 and of first antenna arm is arranged on pcb board 1
Second antenna arm 7 is integrally formed, and first antenna arm 6 and the second antenna arm 7 are welded on pcb board 1, and realization can be directly antenna
It is designed on pcb board 1, when PCB making sheet, disposably produces, design in this way, almost zero cost is put into, and
Production, debugging, consistency is guaranteed, while saving the process in many productions, is realized in conjunction with monopole antenna technology isotype,
With low cost, consistency is high, efficient suitable large-scale production.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (7)
1. a kind of onboard WIFI- multiband aerials of OTT set-top box, which is characterized in that including set-top box, top box includes CPU platforms
（2）, list WIFI chips（4）And onboard antenna, onboard antenna include pcb board（1）, the pcb board（1）Pass through mounting post（3）Peace
On the shell of set-top box, the pcb board（1）On be welded with CPU platforms（2）, close to pcb board（1）Edge be welded with
Single WIFI chips（4）, the pcb board（1）On be provided with antenna, the antenna includes antenna module and ground level, antenna module
It is arranged to inverted F types structure, antenna module includes antenna body（5）, first antenna arm（6）, the second antenna arm（7）And feed point
（8）, the antenna body（5）Respectively with first antenna arm（6）With the second antenna arm（7）, antenna body（5）, first antenna arm
（6）With the second antenna arm（7）It is integrally formed, second antenna arm（7）It is directly welded at pcb board（1）On, first antenna
Arm（6）Pass through feed point（8）It is welded on pcb board（1）On.
2. the onboard WIFI- multiband aerials of a kind of OTT set-top box according to claim 1, which is characterized in that the PCB
Plate（1）For the frequency PCB plate of low-loss high-temperature-resisting.
3. the onboard WIFI- multiband aerials of a kind of OTT set-top box according to claim 1, which is characterized in that the PCB
Plate（1）Thickness be 1.2mm.
4. the onboard WIFI- multiband aerials of a kind of OTT set-top box according to claim 1, which is characterized in that the PCB
Plate（1）Dielectric constant be 4.4.
5. the onboard WIFI- multiband aerials of a kind of OTT set-top box according to claim 1, which is characterized in that antenna module
Structural parameters be respectively resonance length L, the height H of antenna and first antenna arm（6）, the second antenna arm（7）The distance between
S。
6. the onboard WIFI- multiband aerials of a kind of OTT set-top box according to claim 5, which is characterized in that antenna resonance
Length L meets 1/4 λ wavelength of resonant frequency.
7. the onboard WIFI- multiband aerials of a kind of OTT set-top box according to claim 5, which is characterized in that antenna resonance
Length L is also the length that PCB copper foil corruption is carved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721581854.9U CN207690992U (en) | 2017-11-23 | 2017-11-23 | A kind of onboard WIFI- multiband aerials of OTT set-top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721581854.9U CN207690992U (en) | 2017-11-23 | 2017-11-23 | A kind of onboard WIFI- multiband aerials of OTT set-top box |
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| Publication Number | Publication Date |
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| CN207690992U true CN207690992U (en) | 2018-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721581854.9U Active CN207690992U (en) | 2017-11-23 | 2017-11-23 | A kind of onboard WIFI- multiband aerials of OTT set-top box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574143A (en) * | 2017-11-23 | 2018-09-25 | 上海龙晶科技有限公司 | A kind of onboard WIFI- multiband aerials of OTT set-top box |
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2017
- 2017-11-23 CN CN201721581854.9U patent/CN207690992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574143A (en) * | 2017-11-23 | 2018-09-25 | 上海龙晶科技有限公司 | A kind of onboard WIFI- multiband aerials of OTT set-top box |
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