CN2396576Y - Optical fibre active antenna - Google Patents
Optical fibre active antenna Download PDFInfo
- Publication number
- CN2396576Y CN2396576Y CN99240524U CN99240524U CN2396576Y CN 2396576 Y CN2396576 Y CN 2396576Y CN 99240524 U CN99240524 U CN 99240524U CN 99240524 U CN99240524 U CN 99240524U CN 2396576 Y CN2396576 Y CN 2396576Y
- Authority
- CN
- China
- Prior art keywords
- amplifier
- triode
- links
- power splitter
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model relates to an optical fibre active antenna, which comprises an optical transceiver, a two-way amplifier, a power splitter, a passive antenna element, a divider circuit, etc., wherein, two ports of the optical transceiver are respectively connected with that of the amplifier, and the optical transceiver is provided with an electric supply port which is connected with the anode and cathode of a power supply respectively. The two-way port of the amplifier is connected with the power splitter of which the other two ports are respectively connected with the passive antenna element and a next antenna, while the power supply end of the amplifier is connected with the anode of the power supply and is respectively connected with two pins of the divider circuit at the same time. The grounding end of the amplifier is earthed.
Description
The utility model belongs to the indoor ceiling mount antenna that a kind of mobile communication system is used.
Develop at a too fast speed owing to cellular mobile communication in China, make the construction and the network operator of system have no time to attend to little " blind area " for many years always, and attentiveness is placed on always in the dilatation and big " blind area " of system, and the quantity of by chance little " blind area " is much more, such as: in market place builet below the ground, parking lot, the building, tunnel, subway, station, harbour, airport etc., be seen everywhere.Simultaneously, because the continuous expansion of system will be adopted microcellulor technology (a lot of cities have begun to adopt in fact) in the compact district, down town, make the quantity of indoor " blind area " roll up.In this year, along with increasingly sharpening of market competition, the quality of network quality more and more is subjected to system operator and user's attention.The network operators of China's cellular mobile communication have begun addressing its little " blind area " covering problem, and existing " blind area " soverlay technique to be original outdoor covering basically be transplanted to indoor covering, figure one is the prior art exemplary block diagram, its shortcoming is as follows:
1, with high-power direct amplification machine (2W-20W does not wait usually), the cell frequency planning with the heavy damage network is unfavorable for the optimization of (being harmful to) network.
2, domestic aerial separates with amplifier, is unfavorable for improving the signal to noise ratio of system, original base station is produced disturb inevitably.
3, antenna for mobile phone is used for indoor covering, and antenna gain is low, is unfavorable for improving the signal to noise ratio of system.
4, antenna for mobile phone or other antenna are used for indoor covering, and inconvenience is installed, and profile is not attractive in appearance, and difficult and interior decoration is coordinated.
5, antenna for mobile phone or other antenna only work in one-segment usually, are unfavorable for the upgrading of system.
The purpose of this utility model provides the indoor ceiling mount antenna that a kind of mobile communication system is used, and solves the mobile communication indoor covering problem.
The utility model is made of elements such as optical transceiver, bilateral amplifier, power splitter, passive element array, bleeder circuits, the two-port of optical transceiver links with the two-port of amplifier respectively, the optical transceiver port of powering in addition, link to each other with the positive and negative electrode of power supply respectively, the duplex mouth of amplifier links with power splitter, the two-port in addition of power splitter links with passive element array and " next antenna " respectively, the feeder ear of amplifier and the positive pole of power supply link, simultaneously feeder ear links the earth terminal ground connection of amplifier with the two pins of bleeder circuit respectively.Wherein bilateral amplifier selects for use triode and side circuit thereof to constitute, and power splitter selects 1/2 for use, and passive element array is selected microstrip antenna for use, and bleeder circuit selects for use resistance to constitute.
The utility model volume is little, and good looking appearance utilizes the advantage of optical fiber transmission technique that the GSM/TACS signal is transmitted and received, and the rf gain up to 40dB can be provided, and helps improving noise.
Accompanying drawing 1 is the utility model electricity theory diagram.
Accompanying drawing 2 is the utility model local circuit electrical schematic diagram.
As shown in Figure 1, the utility model is made of optical transceiver (10), bilateral amplifier (20), power splitter (30), passive element array (40), bleeder circuit elements such as (50), the two-port " 11 " of optical transceiver (10), " 12 " link with two-port " 21 ", " 22 " of amplifier (20) respectively, optical transceiver (10) port of powering in addition, the pin (1,3) of power supply port links with the positive pole of power supply; Pin (2,4,5) links to each other with the negative pole of power supply, and the duplex mouth of amplifier (20) links with power splitter (30), and the two-port in addition of power splitter (30) links with passive element array (40) (local antenna) and " next antenna " respectively.The power supply port (23,24) of amplifier (20) and the positive pole of power supply link, the port of powering simultaneously (23,24) respectively and the two pins of bleeder circuit (50) link earth terminal (25) ground connection of amplifier (20).
As shown in Figure 2, be optical transceiver (10), bilateral amplifier (20), power splitter (30) is electrically connected schematic diagram, radiofrequency signal is input to the base stage of bilateral amplifier (20) triode (B1) by optical transceiver (10), the collector electrode of triode (B2), bilateral amplifier (20) is selected triode (B1 for use, B2), resistance (R1), electric capacity (C1, C2, C3), inductance (L1, L2) be formed by connecting, the power supply port of bilateral amplifier (20) is inductance (L1, L2) terminals (21,22), link to each other with positive source, the collector electrode of the triode (B1) of bilateral amplifier (20) is by electric capacity (C2), circulator (V2) links to each other with power splitter (30), the base stage of triode (B2) links to each other with power splitter (30) by circulator (V2), the base stage of triode (B1) with after the base stage of triode (B2) is in parallel with resistance (R2), inductance (L3) ground connection again of connecting, the ground connection again of connecting with resistance (R4) after the emitter-base bandgap grading parallel connection of the emitter-base bandgap grading of triode (B1) and triode (B2).Power splitter (30) selects 1/2 for use, and two ports in addition of power splitter (30) link to each other with " next antenna " with passive element array (40), and passive element array (40) selects for use lc circuit to constitute.
Claims (3)
1, a kind of optical active fiber antenna, by optical transceiver, bilateral amplifier, power splitter, passive element array, send out element formations such as volt circuit, the two-port that it is characterized in that optical transceiver links with the two-port of amplifier respectively, the optical transceiver port of powering in addition, respectively with power supply just, negative pole links to each other, the duplex mouth of amplifier links with power splitter, the two-port in addition of power splitter links with passive element array and " next antenna " respectively, the feeder ear of amplifier and the positive pole of power supply link, simultaneously feeder ear links the earth terminal ground connection of amplifier with the two pins of bleeder circuit respectively.
2, optical active fiber antenna according to claim 1 is characterized in that bilateral amplifier selects for use triode and side circuit thereof to constitute, and power splitter selects 1/2 for use, and passive element array is selected microstrip antenna for use, and bleeder circuit selects for use resistance to constitute.
3, optical active fiber antenna according to claim 1, it is characterized in that radiofrequency signal passes through the base stage that optical transceiver (10) is input to bilateral amplifier (20) triode (B1), the collector electrode of triode (B2), bilateral amplifier (20) is selected triode (B1 for use, B2), resistance (R1), electric capacity (C1, C2, C3), inductance (L1, L2) be formed by connecting, the power supply port of bilateral amplifier (20) is inductance (L1, L2) terminals (21,22), link to each other with positive source, the collector electrode of the triode (B1) of bilateral amplifier (20) is by electric capacity (C2), circulator (V2) links to each other with power splitter (30), the base stage of triode (B2) links to each other with power splitter (30) by circulator (V2), the base stage of triode (B1) with after the base stage of triode (B2) is in parallel with resistance (R2), inductance (L3) ground connection again of connecting, the ground connection again of connecting with resistance (R4) after the emitter-base bandgap grading parallel connection of the emitter-base bandgap grading of triode (B1) and triode (B2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99240524U CN2396576Y (en) | 1999-10-15 | 1999-10-15 | Optical fibre active antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99240524U CN2396576Y (en) | 1999-10-15 | 1999-10-15 | Optical fibre active antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2396576Y true CN2396576Y (en) | 2000-09-13 |
Family
ID=34027553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99240524U Expired - Fee Related CN2396576Y (en) | 1999-10-15 | 1999-10-15 | Optical fibre active antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2396576Y (en) |
-
1999
- 1999-10-15 CN CN99240524U patent/CN2396576Y/en not_active Expired - Fee Related
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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 |