CN2624560Y - PHS mobile communication direct amplifying station - Google Patents
PHS mobile communication direct amplifying station Download PDFInfo
- Publication number
- CN2624560Y CN2624560Y CNU032349289U CN03234928U CN2624560Y CN 2624560 Y CN2624560 Y CN 2624560Y CN U032349289 U CNU032349289 U CN U032349289U CN 03234928 U CN03234928 U CN 03234928U CN 2624560 Y CN2624560 Y CN 2624560Y
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- China
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- circulator
- port
- low noise
- input
- power amplifier
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Abstract
The utility model discloses a PHS mobile communication repeater, which comprises a first circulator, a low noise amplifier, a power amplifier and a second circulator; the first port of the first circulator is an uplink output/downlink input port, the second and third ports are respectively connected with the input end of the power amplifier and the output end of the low noise amplifier; the first port of the second circulator is an uplink input/downlink output port, the second and third ports are respectively connected with the input end of the low noise amplifier and the output end of the power amplifier. By smartly adopting the circulator, the utility model facilitates the uplink and downlink signals amplified through different amplifiers, and inputs or outputs from the same port and not mutually influenced, solve the difficulty of two-way shared frequency amplifying. In order to ensure the circulator isolating performance, the input/output ports of low noise amplifier and power amplifier can be arranged with an isolator, and two cascade shared frequency amplifying circulator can improve gains.
Description
Technical field:
The utility model relates to a kind of PHS Mobile communication direct base station, and it is a kind of two-way with multiplying arrangement frequently, be specialized application in the PHS mobile radio communication, system and the supporting main frames of outdoor base station coverage optimization such as indoor covering distribution.
Background technology:
The construction of PHS network mainly is to form by building highdensity base station at present, has superiority but just can not show a candle to the PHS repeater in indoor and letter price ratios some special overlay area (as highway, railway etc.) base station applies.These are all fully verified in GSM and CDMA net.
Tradition GSM900MHz/DCS1800MHz/CDMA800/CDMA1900MHz repeater also has boundary belt because system all has between the branch of the branch of up-downgoing frequency range and up-downgoing frequency range and the up-downgoing frequency range; keep apart so they directly put more easily by two merits up-downgoing to be amplified, form two-way amplifying device.
In order to realize repeater coverage mode in the conventional P HS network, because PHS mobile communication system transmitting-receiving frequency range is identical, only be difference to some extent on time slot, can't realize repeat function with traditional two-way amplification.
Summary of the invention:
The purpose of this utility model is exactly two-way with frequently amplifying difficult point in order to solve, and a kind of PHS Mobile communication direct base station is provided.
The utility model realizes that the scheme of above-mentioned purpose is: a kind of PHS Mobile communication direct base station, comprise line output/descending input port and up input/descending output port, it is characterized in that: also comprise first circulator, low noise amplifier, power amplifier and second circulator, constitute with amplifying ring frequently; First port of described first circulator is last line output/descending input port, second and third port, connects the input of power amplifier and the output of low noise amplifier respectively; First port of described second circulator is up input/descending output port, second and third port, connects the input of low noise amplifier and the output of power amplifier respectively.
According to an important embodiment of the present utility model:
Add isolator on the input/output end port of described low noise amplifier and power amplifier.
It comprises that the same frequency of two cascades amplifies ring, the first order is the prime power amplifier with the power amplifier that amplifies in the ring frequently, low noise amplifier is a back level low noise amplifier, and the second level is the prime low noise amplifier with the power amplifier that amplifies frequently in the ring for a level power amplifier low noise amplifier not.
Adopt the beneficial effect of above scheme: by the ingenious utilization of circulator, make the uplink and downlink signal amplify, and can input or output by same port and be independent of each other, solved two-way with frequently amplifying difficult point by different amplifiers.
On the other hand,, guarantee to connect each port standing wave index of circulator, thereby guaranteed circulator isolation index because install isolator additional.And the cascade of two rings can improve gain greatly, satisfies the complete machine gain and requires (the low gain occasion can be amplified with the monocycle in this programme).
Description of drawings:
Fig. 1 is the utility model embodiment monocycle enlarged diagram.
Fig. 2 is the utility model embodiment dicyclo cascade enlarged diagram.
Fig. 3 is the used a kind of circulator schematic diagram of the utility model.
Embodiment:
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
As shown in Figure 1, this PHS Mobile communication direct base station comprises line output/descending input port and up input/descending output port, and first circulator 1, low noise amplifier 2, power amplifier 3 and second circulator 4, and they constitute with amplifying ring frequently.Wherein: first port one 1 of described first circulator 1 is last line output/descending input port, and second and third port one 2,13 connects the input 31 of power amplifier 3 and the output 21 of low noise amplifier 2 respectively; First port 41 of described second circulator 4 is up input/descending output port, and second and third port 42,43 connects the input 22 of low noise amplifier 2 and the output 32 of power amplifier 3 respectively.
Each port standing wave index of the capable device of only guaranteed T-Ring could guarantee circulator isolation index.For this reason, can on the input/ output end port 21,22,31,32 of described low noise amplifier 2 and power amplifier 3, install isolator additional.
The utility model scheme has also adopted two ring series systems that amplify frequently together to improve complete machine gain and power.As Fig. 2, it comprises that the same frequency of two cascades amplifies ring, the first order is the prime power amplifier with the power amplifier 3 that amplifies in the ring frequently, low noise amplifier 2 is a back level low noise amplifier, and the second level is the prime low noise amplifier with the power amplifier 3 that amplifies frequently in the ring for a level power amplifier low noise amplifier 2 not.
Can amplify with the monocycle in this programme in the low gain occasion.
The used circulator of the utility model can adopt some existing circulator, as T-001S40 type, C1719 type etc.Fig. 3 is the structural representation of a kind of TH101F type circulator of designing for this patent specially.It is a kind of band toe-in circulator, and this type of circulator design is based on the theory of Bo Sima (H.Bosma), and mountain range, Hull (J.Helszaju) was in the elaboration of having made system aspect the network theory of nonreciprocal knot afterwards.And the circulator knot impedance of our design now and the coupling between the 50 Ω impedances have adopted the LC network, can be without the method for s-matrix unit, and directly solve and tie and problem that the LC matching network links by impedance (or admittance) eigenvalue method.
Claims (4)
1. a PHS Mobile communication direct base station comprises line output/descending input port and up input/descending output port, it is characterized in that:
Also comprise first circulator (1), low noise amplifier (2), power amplifier (3) and second circulator (4), constitute with amplifying ring frequently;
First port (11) of described first circulator (1) is last line output/descending input port, and second and third port (12,13) connects the input (31) of power amplifier (3) and the output (21) of low noise amplifier (2) respectively;
First port (41) of described second circulator (4) is up input/descending output port, and second and third port (42,43) connects the input (22) of low noise amplifier (2) and the output (32) of power amplifier (3) respectively.
2. PHS Mobile communication direct base station as claimed in claim 1 is characterized in that: add isolator on the input/output end port (21,22,31,32) of described low noise amplifier (2) and power amplifier (3).
3. PHS Mobile communication direct base station as claimed in claim 1 or 2, it is characterized in that: it comprises that the same frequency of two cascades amplifies ring, the first order is the prime power amplifier with the power amplifier (3) that amplifies in the ring frequently, low noise amplifier (2) is a back level low noise amplifier, and the second level is the prime low noise amplifier with the power amplifier (3) that amplifies frequently in the ring for a level power amplifier low noise amplifier (2) not.
4. PHS Mobile communication direct base station as claimed in claim 1 or 2 is characterized in that: between described circulator knot impedance and the 50 Ω impedances LC network is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032349289U CN2624560Y (en) | 2003-06-13 | 2003-06-13 | PHS mobile communication direct amplifying station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032349289U CN2624560Y (en) | 2003-06-13 | 2003-06-13 | PHS mobile communication direct amplifying station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2624560Y true CN2624560Y (en) | 2004-07-07 |
Family
ID=34249478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032349289U Expired - Fee Related CN2624560Y (en) | 2003-06-13 | 2003-06-13 | PHS mobile communication direct amplifying station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2624560Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100418384C (en) * | 2005-11-30 | 2008-09-10 | 李学军 | Multi-carrier base station amplifier |
-
2003
- 2003-06-13 CN CNU032349289U patent/CN2624560Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100418384C (en) * | 2005-11-30 | 2008-09-10 | 李学军 | Multi-carrier base station amplifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |