CN209435350U - A kind of novel miniaturization KU wave band multi-user's DCSS tuner - Google Patents
A kind of novel miniaturization KU wave band multi-user's DCSS tuner Download PDFInfo
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- CN209435350U CN209435350U CN201920187253.2U CN201920187253U CN209435350U CN 209435350 U CN209435350 U CN 209435350U CN 201920187253 U CN201920187253 U CN 201920187253U CN 209435350 U CN209435350 U CN 209435350U
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Abstract
The utility model relates to a kind of novel miniaturization KU wave band multi-user's DCSS tuners, including feed, waveguide pipe, multilayer circuit board, the L-type pin connecting with multilayer circuit board and I type pin；Waveguide pipe is outer circle hollow structure, and front end connects feed, and Basolateral forms the circuit mounting base for placing multilayer circuit board；Waveguide pipe bottom end is rectangle plane, inside has the first ladder, the second ladder, third ladder, the first ladder, the second ladder are in same one side, third ladder and the first ladder and the second ladder spatial vertical；L-type pin is located at the first rank ladder section, and I type pin is located at second-order ladder section, and L-type pin and I type pin are vertical at 90 ° of space inside waveguide pipe.Product miniaturization may be implemented in the utility model, cancels the structure design of spacer rod, simplifies product processes.It has also been proposed to realize in single coaxial cable, supports multiple user's set-top boxes to use, multi-functional selection.
Description
[technical field]
The utility model relates to satellite TV reception technologies, and in particular to a kind of novel miniaturization KU wave band multi-user DCSS
Tuner.
[background technique]
Currently, the mankind are very extensive by satellite transmission signal, especially receive satellite broadcasting television letter using tuner
Number field.For the band limits of KU wave band in 10700MHz between 12750MHz, KU wave band tuner is exactly to receive KU wave band
Downward signal of satellite, faint vision signal is modified and is amplified, shields interference signal to guarantee the stability of image,
Export the demodulated reduction TV signal of intermediate-freuqncy signal of 950~2150MHz.
It is used currently, 1 user's set-top box (STB) can only be met by 1 cable transmission, if provided to multiple users
Necessary rewiring and hardware installation are serviced, this tuner operation cost is high, and the market competitiveness is low.
Existing KU wave band tuner as shown in Figure 1, include feed 10, waveguide pipe 20, circuit device and connector, it is most common
Be the integrated circular waveguide of bipolarity feed, it is circle that waveguide pipe 20, which is a kind of hollow, inner wall smooth, cross section,
Metal catheter, and internal symmetrical centre has the spacer rod for playing polarization isolation 30.Electromagnetism in circular waveguide
Field is circumferentially in standing wave distribution with radial direction, in transmission process polarization can occur and revolve because of minimum inhomogeneities
Turn, since circular waveguide has axial symmetry, spacer rod is passed across into circular waveguide inner wall center and is visited in horizontal polarization
Between needle 40 and vertical polarization probe 50, to keep polarized signal relatively stable.
In general, specific dimensions are made by iron plating nickel material in spacer rod, spacer rod is done the 2nd time according to Standardization Process process
It is pressed together on inside circular waveguide.If there is no spacer rod inside circular waveguide, horizontal polarization and vertical polarization will lead to
Electromagnetic wave interferes with each other, i.e., adjacent TV signal mutually gets two or more radio stations at once, and can not receive the TV programme of whole channels.And this isolation
It is cumbersome that stick already leads to process flow.
In addition, the circuit board in high frequency tuner circuit device is single-layer double-side plate, there are commonly ROGERS plate (high-frequency ceramics
Plate), LNB33 plate, FR4 plate (glass-epoxy plate), 70 double-sided copper-clad 60 of plate, section is as shown in Figure 2.Usually in height
In frequency head circuit, wherein RF amplifying circuit ROGERS plate or LNB33 plate, IF output circuit FR4 plate, therefore it is same
Often occurs the circuit board composition splicing connection of multiple plates on a product.The combination circuit plate being spliced to form, so that product
Process flow is more cumbersome, and whole bigger than normal, high expensive cannot achieve product miniaturization.
Bulky in view of complex process, circuits such as above-mentioned single user, waveguide pipe circuit boards, present inventors have proposed one kind
Thus completely new tuner technology, this case generate.
[utility model content]
To solve the above problems, the purpose of this utility model is to provide a kind of novel miniaturization KU wave band multi-user DCSS
Product miniaturization may be implemented in tuner, cancels the structure design of spacer rod, simplifies product processes.It has also been proposed to
It realizes in single coaxial cable, supports multiple user's set-top boxes to use, multi-functional selection.
To achieve the above object, the utility model mainly adopts the following technical scheme that
A kind of novel miniaturization KU wave band multi-user's DCSS tuner, including feed, waveguide pipe, multilayer circuit board, with it is more
The L-type pin and I type pin of layer circuit board connection；Waveguide pipe is outer circle hollow structure, and front end connects feed, Basolateral
Form the circuit mounting base for placing multilayer circuit board；
Waveguide pipe bottom end closure and it is internal be rectangle plane, have symmetrical first ladder, second in the inner wall of rectangle plane
Ladder, third ladder, the first ladder, the second ladder are in same one side, third ladder and the first ladder and the second ladder spatial vertical；
L-type pin external notches protrude into installation, and horizontal position is located at the first rank ladder section, the insertion of I type pin external apertures, position
In second-order ladder section, L-type pin and I type pin are vertical at 90 ° of space inside waveguide pipe.
First ladder, the second ladder and the third ladder all respectively includes the tread and and square vertical with rectangle plane
The parallel terrace of shape plane, the first terrace, the second terrace, third terrace area reduce step by step.
The rectangle plane has long side and short side, and the first rank ladder, second-order ladder are located at long edge position and extend,
Third ladder is arranged from short side.
The fluting of the L-type pin, opens up in parallel along rectangle plane short side, and the 1/2 of the of length no more than short side of groove body
Distance.
The horizontal position of the L-type pin is in the corresponding regional scope of the first terrace.
The I type pin protrudes into 1/2 distance of of length no more than long side inside waveguide pipe.
The I type pin is located at the corresponding regional scope in second-order face.
The I type pin is vertical with third terrace.
The multilayer circuit board, including P piece, high frequency circuit board, audio line plate, Multi-layer force fit form.
The high frequency circuit board includes the first base material layer using ROGERS plate or LNB33 plate, overlays on the first base respectively
The copper clad layers of material layer upper and lower surface.
The copper clad layers for overlaying on first base material layer upper surface be top line layer, overlay on first base material layer lower surface and
Copper clad layers with the bonding of P piece are the first middle line.
The audio line plate includes the second substrate layer using FR4 plate, overlays on the second substrate layer upper and lower surface respectively
Copper clad layers.
It is described to overlay on the second substrate layer upper surface and be the second middle line layer with the copper clad layers of P piece bonding, overlay on the
Two substrate layer lower surfaces and copper clad layers be wiring underlayer layer.
It include the string holes one covering copper perforation and being connected by top line layer and the first middle line on the multi-layer board,
Top line layer and the second middle line layer are covered into the connected string holes two of copper perforation, by top line layer and wiring underlayer layer
The connected string holes three of copper perforation is covered, by the string holes four of the first middle line and wiring underlayer layer covering copper perforation and being connected.
It include RF amplifying circuit, bandwidth-limited circuit, low power consumption integrated circuit, digital signal on the multilayer circuit board
Integrated circuit；RF amplifying circuit receives horizontal signal and vertical signal, after the amplification of RF amplifying circuit, then passes through bandpass filtering
Circuit output signal is sent into low power consumption integrated circuit mixing, and low power consumption integrated circuit is connected to digital signal integrated circuit, finally
IF output is connected to set-top box.
The digital signal integrated circuit is that full frequency band captures satellite-signal superimposer, and internal structure includes being sequentially connected
Rf inputs, digital channel crossbar switch, 32 channels, channel superimposer, medium frequency output end.
The rf inputs are to receive the signal from low power consumption integrated circuit output, while carrying out modulus to signal
Conversion and digital signal automatic gain control, are intersected with realizing the optimum efficiency after signal analog-to-digital conversion and being transported to digital channel
Switch.
The digital channel crossbar switch is that any one frequency of the Any Digit signal in input is mapped to 32
Any one of a channel channel.
32 channels are the digital selection of signal progress and filtering by may be programmed formula to input, and independent defeated
It is sent to Signal averaging device.
The Signal averaging device is to pass through Digital Frequency Synthesize for selecting 32 transponders in the input of any radio frequency
Device, the selected frequency being converted into 950-2150MHz, and ensure that any combination is separated with output.
The medium frequency output end is the signal for receiving the output of Signal averaging device, and uses digital-to-analogue parallel operation conversion output 950-
The intermediate-freuqncy signal of 2150MHz.
The digital signal integrated circuit uses the BCM4554 integrated circuit of company, Botong.
The digital signal integrated circuit output connection triplexer, reconnects IF amplifier circuit output.
The bandwidth-limited circuit is also connected with low current collection into tuning circuit, forms simulation output.
Compared with prior art, the utility model has the following beneficial effects:
1, the utility model use multilayer circuit board, it is more stable than the dielectric properties of single plate in existing industry and
It is able to satisfy the requirement of multilayer circuit and IC design, being that product up-gradation minimizes and number is integrated has established solid base
Plinth, while low cost, the market demand of high-quality have been catered to, it is promoted and applied for the first time in the field.
2, using circumference waveguide switch technology inside the waveguide pipe of the utility model, it is flat that guided wave bottom of the tube is designed as rectangle
Face cooperates three ladders, circular cavity is converted to rectangular cavities, no spacer rod, open end is circle.L-type pin groove body edge
The wide wall surface center line fluting of rectangular cavities is put into, since wide wall surface centerline only has longitudinal current, along wide wall surface
Fluting will not influence the distribution of fields inside amount because cut off tube wall electric current at line, otch will not outside radiant electromagnetic energy from
And make distorted signals, horizontal polarization probe may be implemented and receive only longitudinal current signal, to avoid horizontal polarization and vertical pole
The signal of change interferes with each other, and the utility model has been carried out the technical issues of no spacer rod overcomes polarized signal to interfere.
3, the utility model uses the digital channel superimposing technique of digital signal integrated circuit and the circuit design of optimization,
It realizes in single coaxial cable, multiple (16-32) user set-top boxes (STB) can be supported to use.Also propose a kind of multi-functional electricity
Road design concept, have output two kinds of functions of analog signal and digital signal, meet more than 91 a users uses and support MoCA with
HD video receives.
[Detailed description of the invention]
Fig. 1 is existing tuner structure schematic diagram；
Fig. 2 is the board structure of circuit figure used in existing tuner；
Fig. 3 is the stereoscopic schematic diagram of the utility model preferred embodiment；
Fig. 4 is the A-A of Fig. 3 to sectional view；
Fig. 5 is the B-B direction sectional view of Fig. 3；
Fig. 6 is the stereoscopic schematic diagram of Fig. 5；
Fig. 7 is the probe installation schematic plan view of the utility model preferred embodiment；
Fig. 8 is the probe installation schematic internal view of the utility model preferred embodiment；
Fig. 9 is multilayer circuit board schematic cross-section in the utility model preferred embodiment；
Figure 10 is that multilayer circuit board runs through schematic cross-section in the utility model preferred embodiment；
Circuit module schematic diagram in Figure 11 the utility model preferred embodiment；
Figure 12 is digital signal integrated circuit schematic in the utility model preferred embodiment；
Figure 13 is another circuit module schematic diagram of the utility model preferred embodiment；
Figure 14 is triplexer circuit schematic diagram in the utility model preferred embodiment.
[specific embodiment]
It please refers to shown in Figure of description 3-14, the utility model is described in further detail.
A kind of novel miniaturization KU wave band multi-user's DCSS tuner, the component being mainly concerned with includes feed 1, waveguide pipe
2, L-type pin 3, I type pin 4, multilayer circuit board 5.One end of waveguide pipe 2 connects feed 1, and feed 1 is routine techniques, here
It does not repeat them here.The other end outer wall of waveguide pipe 2 forms a circuit mounting base 51, interior to install fixed multilayer circuit board 5.L-type
Pin 3, I type pin 4 are connected and fixed with multilayer circuit board 5.
One of the utility model innovation is waveguide pipe 2, and the bottom end of waveguide pipe 2 is enclosed construction, and inside forms one
Rectangle plane 21, rectangle plane 21 have long side and short side, and along the position of two long sides, the inner wall two sides of waveguide pipe 2 form first
Ladder 22, the second ladder 23 form third ladder 24 along the inner wall two sides of two short side position waveguide pipes 2, the first ladder 22, the
Two ladders 23 form spatial vertical state with third ladder 24.First ladder 22 include the first tread 221 and the first terrace 222,
Second ladder 23 includes the second tread 231 and the second terrace 232, third ladder 24 include third tread 241 and third terrace
242, the first tread 221, the second tread 231, third tread 241 are vertical with rectangle plane 21, the first terrace 222, second-order
Face 232, third terrace 242 are parallel with rectangle plane 21, and the first terrace 222, the second terrace 232, third terrace 242 according to
Secondary area step by step reduces.
The outer wall of waveguide pipe 2 forms circuit panel seat 51 at bottom position, and L-type pin needle 3, I type pin 4 are connected to
On multilayer circuit board 5, goed deep into inside waveguide pipe 2 by circuit board installation position 8.L-type pin 3 is that fluting protrudes into, I type pin 4
Aperture insertion.
3 specific location of L-type pin is in 2 bottom end of waveguide pipe along the short side parallel slots of rectangle plane 21, and groove body does not surpass
1/2 position line of rectangle plane 21 is crossed, L-type pin needle 3 includes vertical component effect 31 and horizontal part 32, and 31 outer end of vertical component effect hangs fixation
In circuit panel seat 51, horizontal part 32 is extend into inside waveguide pipe 2,1/2 position line of of length no more than rectangle plane 21.Groove body
It is provided with the band of position that the first tread 221 is covered, this is to depend on L-type pin 3 to be covered no more than the first tread 221
The band of position.
The vertical third tread 241 of the aperture of I type pin 4, and in the area of space that the second tread 231 is covered.I
The 1/2 of the long side of of length no more than rectangle plane 21 of the type pin 4 inside waveguide pipe 2.In this way in the inside of waveguide pipe 2, L
It is vertical that type pin 3, I type pin 4 form 90 ° of space.
The working principle of the utility model tuner is: one section of poled waveguide letter that the feed 1 of reflector antenna receives
Number, through dual polarization waveguide by horizontal (V) and vertical (H) Signal separator, separation number is reached into 20dB or more, it is same to ensure
Two sets different signals of transmission interact interference in frequency band, then pass through 90 degree of phase difference of inducing probes again and receive water respectively
The radiofrequency signal of flat (V) and vertical (H), amplify, and are mixed, frequency reducing, then amplify the satellite television for finally obtaining our needs
It respectively can be with single channel or multiple-channel output by connector after signal.
Circular cavity is changed to rectangular cavities by 2 bottom of waveguide pipe, can be to avoid the signal phase of horizontal polarization and vertical polarization
The technical issues of mutually interference, realization overcomes polarized signal to interfere without spacer rod.
Multilayer circuit board 5 mainly includes P piece 52, high frequency circuit board 53, audio line plate 54 referring to figure Fig. 9-10.
P piece 52 is a separation layer, and thickness commonly uses 0.1mm generally within the scope of 0.08-0.12mm, and material can be selected
PP resin material selects raw benefit S1000B in the present embodiment.P piece 52 is used to isolation signals, prevents upper and lower two different plates
In addition signal interference also acts as the effect for bonding two various boards up and down.
It is high frequency circuit board 53 above P piece 52, high frequency circuit board 53 is followed successively by top line line layer 531, from top to bottom
One substrate layer 532, the first middle line 533.Top line line layer 531, is mainly made of copper foil, for cabling, ground connection etc..The
One substrate layer 532 can select the base of the ROGERS plate (high-frequency ceramic plate) that can reach high band requirement or raw benefit LNB33 plate
Plate, the first medium line, that is, road 533 are also copper foil composition, are contacted with P piece 52, for being grounded and walking route.First base material layer 532
With a thickness of 500-520um, top line line layer 531, the first middle line 533 are with a thickness of 17.5um.
It is low-frequency channel plate 54 below P piece 52, is followed successively by the second middle line layer 541, the second substrate layer from top to bottom
542 and wiring underlayer layer 543.Second middle line layer 541 and wiring underlayer layer 33 are also copper foil composition, for being grounded and walking
Line.Second substrate layer 542 is the substrate of FR4 plate (glass-epoxy plate), because this layer does not walk the signal of high band
Route, so the plate that can reach high band requirement is not needed, using FR4 plate.
Wherein for the second substrate layer 542 with a thickness of 160-170um, the second middle line layer 541 and wiring underlayer layer 543 are thick
Degree is 17.5um.
Properties of product to work it out can reach requirement, and the route for crossing KU band signal is all placed on height in the utility model
On frequency wiring board 53, low-frequency channel plate 54 are crossed DC route and ground connection.And top line layer 531 and contacted with P piece 52 first
Middle line layer 533 is connected with copper perforation is covered, and forms string holes 1.Top line layer 531 and contacted with P piece 52 second in
Between line layer 541 with cover copper perforation be connected, formed string holes 2 56.Top line layer 531 and wiring underlayer layer 543 are perforated with copper is covered
It is connected, forms string holes 3 57.The the first middle line layer 533 and wiring underlayer layer 543 contacted with P piece is connected with copper perforation is covered,
Form string holes 4 58.In this way be connected so that product signal is not interfered, and performance can also do it is more preferable.
Multilayer circuit board 5 is one piece integrated by the lamination of the plate of unlike material, both meets high frequency requirements, have can using it is low at
This plate, and there is no any influence to product characteristic.The splicing construction arranged side by side of original different plates, lamination knot is converted to
Structure simplifies line connection between different plates, and can significantly reduce the area of circuit board, and it is small-sized to be conducive to product
Change.
And referring to Figure 11 to Figure 14, the circuit on multilayer circuit board 5 includes including RF amplifying circuit 61, bandwidth-limited circuit
62, low power consumption integrated circuit 63, digital signal integrated circuit 64.
RF amplifying circuit 61 receives horizontal signal and vertical signal, after the amplification of RF amplifying circuit, filters by band logical
Wave circuit 62 is sent into low power consumption integrated circuit 63, by the radiofrequency signal and low power consumption integrated circuit 63 of bandwidth-limited circuit output
Local oscillator be mixed after, export 250-2350MHz signals, low power consumption integrated circuit 63 is connected to digital signal integrated circuit 64,
Last IF (intermediate-freuqncy signal) output is connected to set-top box 65.The operating voltage of RF amplifying circuit 61 is integrated by low-power consumption simultaneously
Circuit 63 is controlled.
Digital signal integrated circuit uses the BCM4554 integrated circuit of company, Botong in the present embodiment, is a kind of full frequency band
Capture satellite-signal superimposer.Design uses in the present invention, and internal mainly includes following module: rf inputs
641,642,32 channels 643, channel superimposer 644, medium frequency output ends 645 of digital channel crossbar switch.
Rf inputs 641 are to receive the signal exported from low power consumption integrated circuit 63, while carrying out modulus to signal
Conversion and digital signal automatic gain control, are intersected with realizing the optimum efficiency after signal analog-to-digital conversion and being transported to digital channel
Switch 642.Digital channel crossbar switch 642 is that any one frequency of the Any Digit signal in input is mapped to 32
Any one of channel 643 channel, without any restrictions.32 channels 643 are by may be programmed formula to the signal of input
Digital selection and filtering are carried out, and is independently transported to Signal averaging device 644.Signal averaging device 644 is inputted for any radio frequency
32 transponders of middle selection, by digital frequency synthesizer, the selected frequency being converted into 950-2150MHz, and ensure
Any combination is separated with output.Medium frequency output end 645 is the signal for receiving Signal averaging device 644 and exporting, and uses digital-to-analogue parallel operation
The intermediate-freuqncy signal of conversion output 950-2150MHz.Set-top box 65 is connected to after output.
Digital channel superimposing technique is used in the present embodiment, is converted by high-speed ADC (modulus) converter and DAC (digital-to-analogue)
Device is converted into intermediate-freuqncy signal (IF) output to user's set-top box (STB) from the signal of satellite reception for all, and the present embodiment passes through
Full-digital circuit control demodulation can reset operating mode (i.e. dynamic or static) by programmable device, and dynamic mode supports 16-32
A user receives the demand of satellite-signal simultaneously, and static schema supports unlimited user, provides completely flexible channel selection, supports
More set-top boxes, single line are widely used.
It is another embodiment of the utility model turning also now to Figure 13 and Figure 14, Figure 11 and Figure 12 is compared, in digital signal
Integrated electricity connects a triplexer 66, exports using intermediate-freuqncy signal after IF amplifier circuit 67 after 64 outputs.Meanwhile in band
Bandpass filter circuit 62 is also connected with low current collection into tuning circuit 68, forms analog signal output all the way.
Triplexer 66 as shown in figure 14, inside use lc circuit structure, by an input signal be changed into three it is identical
Output signal.Low current collection is by the radiofrequency signal of bandwidth-limited circuit output and low current collection into tuning electricity at tuning circuit 68
After the local oscillator on road 68 is mixed, 950-2150MHz intermediate-freuqncy signals are exported.
Therefore in embodiments, can both there be analog signal output all the way, there can also be the output of multi-path digital signal, and
On above-mentioned 32 user bases, then meets a user more than 90 while receiving the multiple functions of satellite-signal.
Above specific embodiment is only the preferred embodiment of this creation, all in this wound not to limit this creation
Any modification, equivalent substitution, improvement and etc. done within the spirit and principle of work, should be included in this creation protection scope it
It is interior.
Claims (10)
1. a kind of novel miniaturization KU wave band multi-user's DCSS tuner, it is characterised in that: including feed, waveguide pipe, multilayer electricity
Road plate, the L-type pin being connect with multilayer circuit board and I type pin；Waveguide pipe is outer circle hollow structure, front end connection feedback
Source, Basolateral form the circuit mounting base for placing multilayer circuit board；
Waveguide pipe bottom end closure and it is internal be rectangle plane, the inner wall of rectangle plane have symmetrical first ladder, the second ladder,
Third ladder, the first ladder, the second ladder are in same one side, third ladder and the first ladder and the second ladder spatial vertical；L-type
Pin external notches protrude into installation, and horizontal position is located at the first rank ladder section, and the insertion of I type pin external apertures is located at
Second-order ladder section, L-type pin and I type pin are vertical at 90 ° of space inside waveguide pipe.
2. a kind of novel miniaturization KU wave band multi-user's DCSS tuner as described in claim 1, it is characterised in that: described
First ladder, the second ladder and third ladder all respectively include the tread vertical with rectangle plane and the rank parallel with rectangle plane
Face, the first terrace, the second terrace, third terrace area reduce step by step；The rectangle plane has long side and short side, the first rank
Ladder, second-order ladder are located at long edge position and extend, and third ladder is arranged from short side.
3. a kind of novel miniaturization KU wave band multi-user's DCSS tuner as described in claim 1, it is characterised in that: described
The fluting of L-type pin opens up in parallel along rectangle plane short side, and 1/2 distance of the of length no more than short side of groove body；L-type pin
Horizontal position in the corresponding regional scope of the first terrace.
4. a kind of novel miniaturization KU wave band multi-user's DCSS tuner as described in claim 1, it is characterised in that: described
I type pin protrudes into 1/2 distance of of length no more than long side inside waveguide pipe；It is corresponding that the I type pin is located at second-order face
Regional scope；The I type pin is vertical with third terrace.
5. a kind of novel miniaturization KU wave band multi-user's DCSS tuner as described in claim 1, it is characterised in that: described
Multilayer circuit board, including P piece, high frequency circuit board, audio line plate, Multi-layer force fit form.
6. a kind of novel miniaturization KU wave band multi-user's DCSS tuner as claimed in claim 5, it is characterised in that: described
High frequency circuit board includes the first base material layer using ROGERS plate or LNB33 plate, overlays on first base material layer upper and lower surface respectively
Copper clad layers；The copper clad layers of first base material layer upper surface be top line layer, overlay on first base material layer lower surface and with P piece bonding
Copper clad layers are the first middle line；The audio line plate includes the second substrate layer using FR4 plate, overlays on the second base respectively
The copper clad layers of material layer upper and lower surface；Second substrate layer upper surface and with P piece bonding copper clad layers be the second middle line layer, overlay on
Second substrate layer lower surface and copper clad layers be wiring underlayer layer.
7. a kind of novel miniaturization KU wave band multi-user's DCSS tuner as claimed in claim 6, it is characterised in that: described
It include the string holes one covering copper perforation and being connected by top line layer and the first middle line on multilayer circuit board, by top line
The copper that covers of layer and the second middle line layer is perforated the string holes two that is connected, and the copper that covers of top line layer and wiring underlayer layer is perforated phase
String holes three even, by the string holes four of the first middle line and wiring underlayer layer covering copper perforation and being connected.
8. a kind of novel miniaturization KU wave band multi-user's DCSS tuner as described in claim 1, it is characterised in that: described
It include RF amplifying circuit, bandwidth-limited circuit, low power consumption integrated circuit, digital signal integrated circuit on multilayer circuit board；RF is put
Big circuit receives horizontal signal and vertical signal, after the amplification of RF amplifying circuit, then passes through bandwidth-limited circuit output signal,
It is sent into low power consumption integrated circuit mixing, low power consumption integrated circuit is connected to digital signal integrated circuit, and last IF output is connected to
Set-top box；The digital signal integrated circuit is that full frequency band captures satellite-signal superimposer, and internal structure includes being sequentially connected
Rf inputs, digital channel crossbar switch, 32 channels, channel superimposer, medium frequency output end.
9. a kind of novel miniaturization KU wave band multi-user's DCSS tuner as claimed in claim 8, it is characterised in that: described
Rf inputs are to receive the signal from low power consumption integrated circuit output, while carrying out analog-to-digital conversion and digital signal to signal
Automatic growth control, to realize the optimum efficiency after signal analog-to-digital conversion and be transported to digital channel crossbar switch；
The digital channel crossbar switch is that any one frequency of the Any Digit signal in input is mapped to 32 letters
Any one of road channel；
32 channels are to carry out digital selection and filtering to the signal of input by may be programmed formula, and be independently transported to
Signal averaging device；
The Signal averaging device is will by digital frequency synthesizer for 32 transponders of selection in the input of any radio frequency
It is converted to the selected frequency in 950-2150MHz, and ensures that any combination is separated with output；
The medium frequency output end is the signal for receiving the output of Signal averaging device, and uses digital-to-analogue parallel operation conversion output 950-
The intermediate-freuqncy signal of 2150MHz.
10. a kind of novel miniaturization KU wave band multi-user's DCSS tuner as claimed in claim 8 or 9, it is characterised in that: institute
The digital signal integrated circuit output connection triplexer stated, reconnects IF amplifier circuit output；The bandwidth-limited circuit
Low current collection is also connected with into tuning circuit, forms simulation output.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743557A (en) * | 2019-02-02 | 2019-05-10 | 浙江盛洋科技股份有限公司 | A kind of novel miniaturization KU wave band multi-user's DCSS tuner |
| CN111131732A (en) * | 2019-12-24 | 2020-05-08 | 深圳翔成电子科技有限公司 | KU-band tuner |
-
2019
- 2019-02-02 CN CN201920187253.2U patent/CN209435350U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743557A (en) * | 2019-02-02 | 2019-05-10 | 浙江盛洋科技股份有限公司 | A kind of novel miniaturization KU wave band multi-user's DCSS tuner |
| CN109743557B (en) * | 2019-02-02 | 2023-11-28 | 盛洋电子(广东)有限公司 | Novel miniaturized KU wave band multiuser DCSS tuner |
| CN111131732A (en) * | 2019-12-24 | 2020-05-08 | 深圳翔成电子科技有限公司 | KU-band tuner |
| CN111131732B (en) * | 2019-12-24 | 2021-10-19 | 深圳翔成电子科技有限公司 | KU-band tuner |
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Effective date of registration: 20220331 Address after: 528400 No. 20, Longtang 3rd road, xinqianjin village, Tanzhou town, Zhongshan City, Guangdong Province (address: Shen) Patentee after: Shengyang Electronics (Guangdong) Co.,Ltd. Address before: 312000 no.1416-1417, Renmin East Road, Yuecheng District, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SHENGYANG SCIENCE & TECHNOLOGY Co.,Ltd. |
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