CN201549578U - CATV and TD signal combiner of internal multi-frequency antenna - Google Patents
CATV and TD signal combiner of internal multi-frequency antenna Download PDFInfo
- Publication number
- CN201549578U CN201549578U CN2009202885413U CN200920288541U CN201549578U CN 201549578 U CN201549578 U CN 201549578U CN 2009202885413 U CN2009202885413 U CN 2009202885413U CN 200920288541 U CN200920288541 U CN 200920288541U CN 201549578 U CN201549578 U CN 201549578U
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- antenna
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- high frequency
- microstrip line
- low frequency
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Abstract
The utility model discloses a CATV and TD signal combiner of an internal multi-frequency antenna, which relates to a mobile communication radio-frequency passive component. The signal combiner comprises a case (00), a high-frequency input unit (10), a high-frequency filtering unit (20), an isolation unit (30), a T-shaped connector combining unit (40), a low-frequency filtering unit (50), a low-frequency input unit (60), a metal plate (70) and the internal multi-frequency antenna (80), wherein the high-frequency filtering unit (20), the isolation unit (30) and the T-shaped connector combining unit (40) are in front and back connection sequentially, the low-frequency filtering unit (50) and the T-shaped connector combining unit (40) are in front and back connection, and the internal multi-frequency antenna (80) is connected with the high-frequency input unit (10). The signal combiner has more superior combining performance, wider working band and more compact volume, and the internal multi-frequency antenna can be engaged with the portion of the combiner more conveniently, thereby achieving smaller volume and easier processing.
Description
Technical field
The utility model relates to a kind of mobile communication radio frequency passive device, relates in particular to a kind of CATV and TD signal combiner of built-in multifrequency antenna, promptly relates to passive little band mixer spare that a kind of cable TV signal and mobile communication signal close the road.
Background technology
At present, (scheme that 885MHz～960MHz) finishes indoor covering by existing cable TV (CATV) cable that distributes is more and more universal for the GSM mobile communication signal.Its cardinal principle is closed gsm communication signal and cable TV signal behind the road exactly by in the CATV splicing chamber, by mixer the GSM signal is separated with cable TV signal again after registering one's residence, connect antenna in the outside of mixer at last and make the GSM signal can launch to finish covering.Mixer is the core devices in this scheme.But the frequency range that existing mixer is supported is narrower, does not support frequency range (the A section: 1880～1920MHz of third generation communication system (TD-SCDMA); B section: 2010～2025MHz; The C section: 2300～2400MHz), thereby the TD signal can't use this method to finish indoor covering.On the other hand, make also that at the terminal external antenna of mixer the indoor unit volume is excessive, directly influence the attractive in appearance of the interior space, suffer customer complaint.
Summary of the invention
The purpose of this utility model just is to overcome the shortcoming and defect that prior art exists, and a kind of CATV and TD signal combiner of built-in multifrequency antenna is provided.
The purpose of this utility model is achieved in that
Mixer comprises cabinet, high frequency input unit, High frequency filter unit, isolated location, T connector combiner unit, low frequency filtering unit, low frequency input unit, sheet metal and built-in multifrequency antenna;
Cabinet is made up of loam cake version, lower cover, supporting construction and pcb board; Loam cake version, lower cover and supporting construction are formed quadra, and lower cover is provided with pcb board and built-in multifrequency antenna;
High frequency filter unit and low frequency filtering unit lay respectively on the pcb board both sides;
Sheet metal is located in the middle of the pcb board;
The high frequency input unit connects the High frequency filter unit;
The low frequency input unit connects the low frequency filtering unit;
Be connected successively before and after High frequency filter unit, isolated location and the T connector combiner unit, the low frequency filtering unit is connected with T connector combiner unit front and back;
Built-in multifrequency antenna is connected with the high frequency input unit.
Its operation principle is:
Owing to will satisfy CATV and TD mixer working band is wide, physical dimension is little requirement, the method that adopts microstrip line to match with the lump components and parts designs;
High frequency filter unit and low frequency filtering unit are not positioned at the PCB both sides, all select for use the ellipse prototype to realize inhibition to out of band signal, and this prototype not only can reduce the ghost effect of lump components and parts when high band, and can reduce physical dimension greatly;
Sheet metal is used to reduce the mutual coupling of high and low frequency filter unit between High frequency filter unit and low frequency filtering unit;
Isolated location can make mixer show the outer suppression characteristic of better band;
T type connector combiner unit is used to connect High frequency filter unit and low frequency filtering unit, and realizes deciliter road output of signal;
High frequency input unit and low frequency input unit mate High frequency filter unit and low frequency filtering unit respectively and input or output;
Because the working frequency range span of TD signal is big, so adopt the multifrequency built-in aerial of planar monopoleization to obtain required bandwidth at radiating layer.
The utlity model has following advantage and good effect:
1. adopt microstrip line and lumped parameter matching design according to the actual requirement of indoor CATV signal and the networking of TD signal, under the prerequisite that guarantees the mixer volume compact, introduce isolated location, T type connector combiner unit, and built-in multifrequency antenna, thereby make mixer have more superior road performance, wideer working band and the compacter volume of closing.
2. designed built-in multifrequency antenna only needs the little band pad on the PCB of a distributing point and mixer to link to each other, and convenient with cooperating of mixer part, size is littler, also is easier to processing.
Description of drawings
Fig. 1 is a composition block diagram of the present utility model;
Fig. 2 a is structure vertical view of the present utility model when loam cake (no);
Fig. 2 b is the A-A profile of Fig. 2 a;
Fig. 3 is the connection layout of each functional block of the utility model when multifrequency antenna (do not have built-in);
Fig. 4 a is the structure vertical view of antenna high frequency radiation sheet;
Fig. 4 b is the structure right view of antenna high frequency radiation sheet;
Fig. 4 c is the structure upward view of antenna high frequency radiation sheet;
Fig. 5 a is the structure left view of antenna low frequency radiation sheet;
Fig. 5 b is the structure upward view of antenna low frequency radiation sheet;
Fig. 6 is the structural representation of antenna holder.
Wherein:
The 00-cabinet,
01-loam cake version, the 02-lower cover,
The 03-supporting construction, the 04-PCB plate;
10-high frequency input unit;
20-High frequency filter unit;
The 30-isolated location;
40-T type joint combiner unit;
50-low frequency filtering unit;
60-low frequency input unit;
The 70-sheet metal;
The built-in multifrequency antenna of 80-,
81-antenna substrate support, the 82-antenna substrate,
83-antenna high frequency radiation sheet, 84-antenna low frequency radiation sheet,
85-antenna feed microstrip line.
C1, C2, C3, C4-the 1st, 2,3,4 electric capacity;
L1,2L, 3L, L4, L5-the 1st, 2,3,4,5 inductance.
English to Chinese:
1, CATV-Cable TV Network, cable TV.
2, TD-SCDMA-Time Division-Synchronous Code Division MultipleAccess, the CDMA (Code Division Multiple Access) that the time-division is synchronous is one of 3G (Third Generation) Moblie air interface technical specification of the formal issue of ITU, is called for short TD or 3G.
3, GSM-Global System for Mobile Communications, global system for mobile communications is commonly called as Global Link.
4, PCB-Printed Circuit Board, printed circuit board (PCB).
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail:
One, overall
As Fig. 1,2a, 2b, this utility model comprises cabinet 00, high frequency input unit 10, High frequency filter unit 20, isolated location 30, T connector combiner unit 40, low frequency filtering unit 50, low frequency input unit 60, sheet metal 70 and built-in multifrequency antenna 80;
High frequency filter unit 20 and low frequency filtering unit 50 lay respectively on pcb board 04 both sides;
High frequency input unit 10 connects High frequency filter unit 20;
Low frequency input unit 60 connects low frequency filtering unit 50;
High frequency filter unit 20, isolated location 30 and T connector combiner unit 40 front and back are connected successively, and low frequency filtering unit 50 is connected with T connector combiner unit 40 front and back;
Built-in multifrequency antenna 80 is connected with high frequency input unit 10.
Two, functional block
1, the high frequency input unit 10
As Fig. 3, high frequency input unit 10 is microstrip lines of a kind of sheffield plate, connects High frequency filter unit 20, introduces or the separation high-frequency signal.
2, the High frequency filter unit 20
As Fig. 3, High frequency filter unit 20 is made up of the 5th inductance L 5 of the 2nd, 3,4 capacitor C 2, C3, C4 and the self-control coil of the microstrip line of electroless copper plating film, ATC100B encapsulation;
After connecting successively before and after the 2nd capacitor C 2, microstrip line, the 3rd capacitor C 3, microstrip line, connect the 5th inductance L 5 again respectively and the 4th capacitor C 4, the 5 inductance L 5 are connected microstrip line respectively again with electric capacity the 4th capacitor C 4.
High frequency filter unit 20 connects isolated location 30 and high frequency input unit 10 respectively, is used for by high-frequency signal, suppresses low frequency signal.
3, isolated location 30
As Fig. 3,30 is microstrip lines of a kind of sheffield plate from the unit, connects T connector combiner unit 40 and High frequency filter unit 20 respectively, is used to suppress high-frequency signal crosstalking and low frequency signal crosstalking to high-frequency signal to low frequency signal.
4, the T connector combiner unit 40
As Fig. 3, T connector combiner unit 40 is microstrip lines of a kind of sheffield plate, connects isolated location 30 and low frequency filtering unit 50 respectively, is used for high-frequency signal and low frequency signal and closes road output.
5, the low frequency filtering unit 50
Low frequency filtering unit 50 is made up of the microstrip line of sheffield plate, the 1st capacitor C 1 of ATC100B encapsulation and the 1st, 2,3,4 inductance L 1, L2, L3, the L4 of self-control coil;
After connecting successively, microstrip line, the 1st inductance L 1, microstrip line connect the 1st capacitor C 1 and the 2nd inductance L 2 respectively; The 1st capacitor C 1 connects microstrip line again; The 2nd inductance L 2 is connected with the 4th inductance L 4 with the 3rd inductance L 3 respectively after connecting microstrip line again again, and the other end of the 3rd inductance L 3 links to each other with microstrip line.
Low frequency filtering unit 50 connects low frequency input unit 60 and T connector combiner unit 40 respectively, is used for by high-frequency signal, suppresses low frequency signal.
6, the low frequency input unit 60
As Fig. 3, low frequency input unit 60 is microstrip lines of a kind of sheffield plate, connects low frequency filtering unit 50, introduces or the separation low frequency signal.
7, sheet metal 70
As Fig. 1,2a, 2b, sheet metal 70 is used to separate high pass filter unit 20 and low-pass filter unit 50, reduces both couplings each other.
8, built-in multifrequency antenna 80
As Fig. 2 a, 2b, built-in multifrequency antenna 80 is made up of antenna substrate support 81, antenna substrate 82, antenna high frequency radiation sheet 83, antenna low frequency radiation sheet 84 and antenna feed microstrip line 85;
(1) as Fig. 4 a, 4b, 4c, described antenna high frequency radiation sheet 83 is a kind of sheffield plate microstrip line construction of bending shape, comprise the end face 831, right flank 832 and the bottom surface 833 that connect successively, be separately fixed on end face, right flank and the bottom surface of rectangular ring antenna substrate 82.
(2) as Fig. 5 a, 5b, described antenna low frequency radiation sheet 84 is a kind of sheffield plate microstrip line construction of bending shape, and latter linked left surface 841 and bottom surface 842 are separately fixed on the left surface and bottom surface of rectangular ring antenna substrate 82 before comprising.
(3) as Fig. 6, antenna substrate support 81 is made up of vertical bar 811, last disk 812 and lower disc 813; Pass vertical bar 811 in the central vertical of last disk 812 and lower disc 813;
Vertically in the termination up and down of bar 811 difference flush antenna substrate 82 and the lower cover 02, be used for connecting and supporting antenna substrate 82, guarantee that antenna substrate 82 is unsettled.
Claims (5)
1. the CATV of a built-in multifrequency antenna and TD signal combiner is characterized in that:
Comprise cabinet (00), high frequency input unit (10), High frequency filter unit (20), isolated location (30), T connector combiner unit (40), low frequency filtering unit (50), low frequency input unit (60), sheet metal (70) and built-in multifrequency antenna (80);
Cabinet (00) is made up of loam cake version (01), lower cover (02), supporting construction (03) and pcb board (04); Loam cake version (01), lower cover (02) and supporting construction (03) are formed quadra, and lower cover (02) is provided with pcb board (04) and built-in multifrequency antenna (80);
High frequency filter unit (20) and low frequency filtering unit (50) lay respectively on pcb board (04) both sides;
Sheet metal (70) is located in the middle of the pcb board (04);
High frequency input unit (10) connects High frequency filter unit (20);
Low frequency input unit (60) connects low frequency filtering unit (50);
Be connected successively before and after High frequency filter unit (20), isolated location (30) and the T connector combiner unit (40), low frequency filtering unit (50) are connected with T connector combiner unit (40) front and back;
Built-in multifrequency antenna (80) is connected with high frequency input unit (10).
2. by the described mixer of claim 1, it is characterized in that:
High frequency input unit (10), isolated location (30), T connector combiner unit (40) and low frequency input unit (60) all are microstrip lines of a kind of sheffield plate.
3. by the described mixer of claim 1, it is characterized in that:
High frequency filter unit (20) is made up of the microstrip line of electroless copper plating film, the 2nd, 3,4 electric capacity (C2, C3, C4) of ATC100B encapsulation and the 5th inductance (L5) of self-control coil;
After connecting successively before and after the 2nd electric capacity (C2), microstrip line, the 3rd electric capacity (C3), the microstrip line, connect the 5th inductance (L5) and the 4th electric capacity (C4) again respectively, the 5th inductance (L5) is connected microstrip line respectively again with electric capacity the 4th electric capacity (C4).
4. by the described mixer of claim 1, it is characterized in that:
Low frequency filtering unit (50) is made up of the microstrip line of sheffield plate, the 1st electric capacity (C1) of ATC100B encapsulation and the 1st, 2,3,4 inductance (L1, L2, L3, L4) of self-control coil;
After connecting successively, microstrip line, the 1st inductance (L1), microstrip line connect the 1st electric capacity (C1) and the 2nd inductance (L2) respectively; The 1st electric capacity (C1) connects microstrip line again; The 2nd inductance (L2) is connected with the 4th inductance (L4) with the 3rd inductance (L3) respectively after connecting microstrip line again again, and the other end of the 3rd inductance (L3) links to each other with microstrip line.
5. by the described mixer of claim 1, it is characterized in that:
Built-in multifrequency antenna (80) is made up of antenna substrate support (81), antenna substrate (82), antenna high frequency radiation sheet (83), antenna low frequency radiation sheet (84) and antenna feed microstrip line (85);
Antenna substrate support (81) is provided with antenna substrate (82), and antenna high frequency radiation sheet (83) and antenna low frequency radiation sheet (84) bend four sides that place antenna substrate (82) respectively;
Described antenna high frequency radiation sheet (83) is a kind of sheffield plate microstrip line construction of bending shape, comprise successively the end face (831) that connects, right flank (832) and bottom surface (833), be separately fixed on end face, right flank and the bottom surface of rectangular ring antenna substrate (82);
Described antenna low frequency radiation sheet (84) is a kind of sheffield plate microstrip line construction of bending shape, and latter linked left surface (841) and bottom surface (842) are separately fixed on the left surface and bottom surface of rectangular ring antenna substrate (82) before comprising.
Described antenna substrate support (81) is made up of vertical bar (811), last disk (812) and lower disc (813); Central vertical at last disk (812) and lower disc (813) is passed vertical bar (811);
Vertically in the termination up and down of bar (811) difference flush antenna substrate (82) and the lower cover (02).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202885413U CN201549578U (en) | 2009-11-30 | 2009-11-30 | CATV and TD signal combiner of internal multi-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202885413U CN201549578U (en) | 2009-11-30 | 2009-11-30 | CATV and TD signal combiner of internal multi-frequency antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201549578U true CN201549578U (en) | 2010-08-11 |
Family
ID=42604757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202885413U Expired - Fee Related CN201549578U (en) | 2009-11-30 | 2009-11-30 | CATV and TD signal combiner of internal multi-frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201549578U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952714A (en) * | 2020-08-13 | 2020-11-17 | 英华达（上海）科技有限公司 | Communication assembly and wearable device with same |
-
2009
- 2009-11-30 CN CN2009202885413U patent/CN201549578U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952714A (en) * | 2020-08-13 | 2020-11-17 | 英华达（上海）科技有限公司 | Communication assembly and wearable device with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20181130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |