CN2862508Y - Circuit structure for PHS main line amplifier - Google Patents
Circuit structure for PHS main line amplifier Download PDFInfo
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- CN2862508Y CN2862508Y CN 200520121461 CN200520121461U CN2862508Y CN 2862508 Y CN2862508 Y CN 2862508Y CN 200520121461 CN200520121461 CN 200520121461 CN 200520121461 U CN200520121461 U CN 200520121461U CN 2862508 Y CN2862508 Y CN 2862508Y
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- 230000003321 amplification Effects 0.000 claims abstract description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 19
- 230000001360 synchronised effect Effects 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 abstract 3
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 238000002955 isolation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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Abstract
The utility model discloses a PHS trunk line amplifier circuit structure which easily reaches the synchronization between up and down lines. The model includes a base station terminal, an antenna terminal, a power amplifier, a low noise amplifier, a radio frequency switch device controlling the signal separation and guide between the up and down lines, a rounder securing the signal separating and converting between the up and down lines. The down signal enters the radio frequency switch device from the base terminal, reaches the rounder through the power amplifier and gets to the antenna terminal. The up signal flows into the said rounder by the antenna terminal, reaches the radio frequency switch device through the low noise amplifier and gets to the base terminal. The utility model takes use of the match between the radio frequency switch device and the rounder to realize the separation and convention of the up an down signals, it is available to shift the up and down signals on the time by the switch and to keep the high level of the separation. It is characterized by that simplifying the electrical circuit structure, operating conveniently and satisfying the amplification requirement of high increment and stabilizing.
Description
Technical field
The present invention relates to the autosynchronous radio frequency amplification apparatus of a kind of PHS system, it be a kind of time-division with radiofrequency signal booster frequently, be widely used in the network optimization of PHS system.
Background technology
Along with the fast development of mobile communication, the network optimization more and more is subjected to the attention of each operator.In order to carry out the network optimization effectively cheaply, engineers has proposed the notion of trunk amplifier.So-called trunk amplifier is a kind of radio frequency link multiplying arrangement of non-frequency, is called for short dried putting.
Present communication system based on the FDD mode of operation, as: CDMA, GSM are serial dried to be put, and technology is ripe, is structure with duplexer+up LNA module+descending PA module+duplexer mostly.Utilize two duplexers to realize the isolation of up-downgoing.
Because the PHS system is based on the up-downgoing of TDD with the frequency working method, so it can't be carried out the isolation of uplink and downlink with duplexer.And simple single circulator structure can't reach the amplification demand of high-gain.Cascade circulator structure, too loaded down with trivial details and unstable again, it is more serious to be subjected to the influence of external equipment port standing wave.And most designs are subjected to the dried influence of putting of traditional CDMA, GSM, the importance of having ignored lock in time reaches the influence that synchro switch control brings radio-frequency performance, causes signal after overdrying is put, peak value vector error and average vector error variation, having very, person's signal can not be received the machine demodulation.
The utility model content
Technical problem to be solved in the utility model provides a kind of PHS trunk amplifier circuit structure that can solve the stationary problem between the up-downgoing compactly.The sort circuit structure utilizes switch to realize the up-downgoing switching in time, has guaranteed higher isolation.
The utility model comprises base station port, antenna port, is mainly used in the power amplifier of the amplification of downstream signal, be mainly used in the low noise amplifier that upward signal is carried out highly sensitive reception, it is characterized in that: also include the RF switch device that the control uplink and downlink signals is isolated conducting, guarantee the circulator of uplink and downlink Signal Spacing and conversion; Described base station port directly links to each other with PHS base station radio-frequency port by radio frequency link; Described antenna port directly links to each other with various antennas by radio frequency link; Downstream signal flows into described RF switch device by base station port, amplifies through power amplifier to flow into circulator, flows to antenna port again; Upward signal flows into described circulator by antenna port, flows into RF switch device through low noise amplifier, flows to base station port again.
Described RF switch device comprises directional coupler, radio-frequency (RF) switch and synchronous detection signal processing module, downstream signal is divided into two-way through directional coupler, one the road flows to radio-frequency (RF) switch, one the road flows to the processing of synchronous detection signal processing module changes dc signal into, this dc signal flows to radio-frequency (RF) switch, by this dc signal control radio-frequency (RF) switch.
Described radio-frequency (RF) switch is a single-pole double-throw switch (SPDT).
Described synchronous detection signal processing module is mainly used in synchronous detection signal and handles, and comprises wave detector and operational amplifier, and the downstream signal wave detector of flowing through changes dc signal into, amplifies through operational amplifier again.
The utility model also provides another can solve the PHS trunk amplifier circuit structure of the stationary problem between the up-downgoing compactly.This structure adopts the high-power RF switch to replace circulator, and other parts are identical with foregoing technical scheme.
The sort circuit structure comprises base station port, antenna port, is mainly used in the power amplifier of the amplification of downstream signal, be mainly used in the low noise amplifier that upward signal is carried out highly sensitive reception, it is characterized in that: also include the RF switch device that the control uplink and downlink signals is isolated conducting, guarantee the high-power RF switch of uplink and downlink Signal Spacing and conversion; Described base station port directly links to each other with PHS base station radio-frequency port by radio frequency link; Described antenna port directly links to each other with various antennas by radio frequency link; Downstream signal flows into described RF switch device by base station port, amplifies through power amplifier to flow into the high-power RF switch, flows to antenna port again; Upward signal flows into described high-power RF switch by antenna port, flows into RF switch device through low noise amplifier, flows to base station port again.
Described RF switch device comprises directional coupler, radio-frequency (RF) switch and synchronous detection signal processing module, downstream signal is divided into two-way through directional coupler, one the road flows to radio-frequency (RF) switch, one the road flows to the processing of synchronous detection signal processing module changes dc signal into, this dc signal flows to radio-frequency (RF) switch, by this dc signal control radio-frequency (RF) switch and high-power RF switch.
Described radio-frequency (RF) switch is a single-pole double-throw switch (SPDT).
Described synchronous detection signal processing module is mainly used in synchronous detection signal and handles, and comprises wave detector and operational amplifier, and the downstream signal wave detector of flowing through changes dc signal into, amplifies through operational amplifier again.
Therefore the utility model can utilize switch to realize the up-downgoing switching in time because employing RF switch device and circulator cooperate the isolation conversion that realizes uplink and downlink signals, guarantees higher isolation.And sort circuit is simple in structure, and is easy to use, can reach the amplification demand of high-gain, and more stable.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model one preferred embodiment;
Fig. 2 is the schematic block circuit diagram of the utility model one preferred embodiment.
Embodiment
Fig. 1 is the schematic block circuit diagram of the utility model one preferred embodiment.Present embodiment is isolated modular converter 1 and is adopted RF switch device, isolates modular converter 2 and adopts circulator.Knock off when doing when dried, downstream signal by the base station port input after through directional coupler, signal is divided into two-way.One the tunnel carries out detection control, and one the tunnel carries out radio frequency amplifies.To 3 ports, the loss of signal is very little, advances radio-frequency (RF) switch by 1 port flow of directional coupler for signal; 2 ports of directional coupler are input to the rectified signal processing module with coupled signal.The rectified signal processing module comprises wave detector and operational amplifier, and upward signal or the downstream signal wave detector of flowing through changes dc signal (that is synchro switch control signal) into, and then amplifies through operational amplifier.Signal obtains the synchro switch control signal through after the detection through handling.Radio-frequency (RF) switch is subjected to the control of the synchronizing signal of detecting circuit output, and when descending work, switch is changed to descending conducting, up closing.Downstream signal enters circulator 1 port after amplifying through power amplifier, is exported by circulator 3 ports.After descending signal ended, synchronizing signal is changed once, and promptly control level is just changed once.At this moment, radio-frequency (RF) switch is changed to up conducting, descending closing.When up work, upward signal is imported by antenna port, and 2 ports and 3 ports via circulator enter low noise amplifier.By the 1 port input of low noise amplifier, the output of 2 ports.After amplifying through the low noise of low noise amplifier, enter 2 ports of radio-frequency (RF) switch, export directional coupler to, flow to base station port again by 1 port of radio-frequency (RF) switch.
Fig. 2 is the schematic block circuit diagram of the utility model one preferred embodiment.Different with Fig. 1 is that the circulator among Fig. 1 is replaced by the high-power RF switch.The high-power RF switch is by the dc signal control of synchronous detection signal processing module output.
Claims (8)
1, a kind of PHS trunk amplifier circuit structure, comprise base station port, antenna port, be mainly used in the power amplifier of the amplification of downstream signal, be mainly used in the low noise amplifier that upward signal is carried out highly sensitive reception, it is characterized in that: also include the RF switch device that the control uplink and downlink signals is isolated conducting, guarantee the circulator of uplink and downlink Signal Spacing and conversion; Described base station port directly links to each other with PHS base station radio-frequency port by radio frequency link; Described antenna port directly links to each other with various antennas by radio frequency link; Downstream signal flows into described RF switch device by base station port, amplifies through power amplifier to flow into circulator, flows to antenna port again; Upward signal flows into described circulator by antenna port, flows into RF switch device through low noise amplifier, flows to base station port again.
2, PHS trunk amplifier circuit structure according to claim 1, it is characterized in that: described RF switch device comprises directional coupler, radio-frequency (RF) switch and synchronous detection signal processing module, downstream signal is divided into two-way through directional coupler, one the road flows to radio-frequency (RF) switch, one the road flows to the processing of synchronous detection signal processing module changes dc signal into, this dc signal flows to radio-frequency (RF) switch, by this dc signal control radio-frequency (RF) switch.
3, PHS trunk amplifier circuit structure according to claim 2, it is characterized in that: described radio-frequency (RF) switch is a single-pole double-throw switch (SPDT).
4, PHS trunk amplifier circuit structure according to claim 2, it is characterized in that: described synchronous detection signal processing module, being mainly used in synchronous detection signal handles, comprise wave detector and operational amplifier, the downstream signal wave detector of flowing through changes dc signal into, amplifies through operational amplifier again.
5, a kind of PHS trunk amplifier circuit structure, comprise base station port, antenna port, be mainly used in the power amplifier of the amplification of downstream signal, be mainly used in the low noise amplifier that upward signal is carried out highly sensitive reception, it is characterized in that: also include the RF switch device that the control uplink and downlink signals is isolated conducting, guarantee the high-power RF switch of uplink and downlink Signal Spacing and conversion; Described base station port directly links to each other with PHS base station radio-frequency port by radio frequency link; Described antenna port directly links to each other with various antennas by radio frequency link; Downstream signal flows into described RF switch device by base station port, amplifies through power amplifier to flow into the high-power RF switch, flows to antenna port again; Upward signal flows into described high-power RF switch by antenna port, flows into RF switch device through low noise amplifier, flows to base station port again.
6, PHS trunk amplifier circuit structure according to claim 5, it is characterized in that: described RF switch device comprises directional coupler, radio-frequency (RF) switch and synchronous detection signal processing module, downstream signal is divided into two-way through directional coupler, one the road flows to radio-frequency (RF) switch, one the road flows to the processing of synchronous detection signal processing module changes dc signal into, this dc signal flows to radio-frequency (RF) switch, by this dc signal control radio-frequency (RF) switch and high-power RF switch.
7, PHS trunk amplifier circuit structure according to claim 6, it is characterized in that: described radio-frequency (RF) switch is a single-pole double-throw switch (SPDT).
8, PHS trunk amplifier circuit structure according to claim 6, it is characterized in that: described synchronous detection signal processing module, being mainly used in synchronous detection signal handles, comprise wave detector and operational amplifier, the downstream signal wave detector of flowing through changes dc signal into, amplifies through operational amplifier again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121461 CN2862508Y (en) | 2005-12-31 | 2005-12-31 | Circuit structure for PHS main line amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121461 CN2862508Y (en) | 2005-12-31 | 2005-12-31 | Circuit structure for PHS main line amplifier |
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| Publication Number | Publication Date |
|---|---|
| CN2862508Y true CN2862508Y (en) | 2007-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520121461 Expired - Fee Related CN2862508Y (en) | 2005-12-31 | 2005-12-31 | Circuit structure for PHS main line amplifier |
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| CN (1) | CN2862508Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102137477A (en) * | 2010-01-22 | 2011-07-27 | 国基电子（上海）有限公司 | Mobile station and selection method of signal amplification path thereof |
| CN101150339B (en) * | 2007-10-16 | 2012-07-04 | 福建三元达通讯股份有限公司 | A TD-SCDMA trunk amplifier using network modulation synchronization mode |
| CN111510179A (en) * | 2019-01-30 | 2020-08-07 | 中国移动通信有限公司研究院 | Indoor division antenna, antenna system and control method |
-
2005
- 2005-12-31 CN CN 200520121461 patent/CN2862508Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150339B (en) * | 2007-10-16 | 2012-07-04 | 福建三元达通讯股份有限公司 | A TD-SCDMA trunk amplifier using network modulation synchronization mode |
| CN102137477A (en) * | 2010-01-22 | 2011-07-27 | 国基电子（上海）有限公司 | Mobile station and selection method of signal amplification path thereof |
| CN102137477B (en) * | 2010-01-22 | 2013-09-04 | 国基电子（上海）有限公司 | Mobile station and selection method of signal amplification path thereof |
| CN111510179A (en) * | 2019-01-30 | 2020-08-07 | 中国移动通信有限公司研究院 | Indoor division antenna, antenna system and control method |
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| 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 |