CN2465405Y - Direct amplifying communication repeater - Google Patents
Direct amplifying communication repeater Download PDFInfo
- Publication number
- CN2465405Y CN2465405Y CN 01204037 CN01204037U CN2465405Y CN 2465405 Y CN2465405 Y CN 2465405Y CN 01204037 CN01204037 CN 01204037 CN 01204037 U CN01204037 U CN 01204037U CN 2465405 Y CN2465405 Y CN 2465405Y
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- amplifier
- filter
- amplification circuit
- output
- upward signal
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Abstract
The utility model relates to a repeater which can receive, amplify and retransmit radio frequency signals. The utility model comprises a downstream signal processing unit and an upstream signal processing unit which has fundamentally the same structures. A downstream receiving antenna is orderly connected with a downstream signal pre-amplifier circuit, a downstream signal output amplifying circuit and a downstream emitting antenna. An upstream receiving antenna is orderly connected with an upstream pre-amplifier circuit, an upstream signal output amplifying circuit and an upstream emitting antenna. The utility model has the advantages of reasonable selection of circuit structure and elements, so communication cost is greatly reduced under the condition of ensuring communication quality.
Description
The utility model relates to a kind of repeater that is used for wireless telecommunication system, and specifically, the utility model is a kind of repeater or title transponder by receiving, amplify, retransmit radiofrequency signal.
Along with cellular communication is constantly popularized, for people's life, work brings great convenience, mobile phone almost becomes the indispensable instrument of the modern life.But, because the restriction of base station number, position and transmitting power can't receive the transmission signal at some place mobile phone (portable terminal), for example, underground parking garage, megastore, escalator etc.Addressing this problem the easiest, economic way promptly is to increase repeater or claim transponder in corresponding place.At present, this class repeater is made of downstream signal treatment circuit and upward signal treatment circuit usually, the formation of uplink and downlink signal processing circuit is basic identical, all comprises: transmitting antenna, duplexer, demultplexer, frequency mixer, filter, frequency generator, synthesizer, power amplifier etc.By being redirected to amplify, radiofrequency signal improves the reception and the emitting performance of mobile subscriber terminal and base station.This class repeater exists that efficient is low, complex structure, the more high defective of cost, unsuitable popularization and application.This class application comprises Chinese patent 94 105611.2 (small-sized communication repeater), 95 193000.1 (transponders) etc.
The purpose of this utility model provides a kind of radio communication repeater of dependable performance with low cost, to be adapted to installing and using of general place.
The purpose of this utility model is to realize like this, it comprises two essentially identical downstream signal processing units of structure and upward signal processing unit, and descending reception antenna connects downstream signal pre-amplification circuit, downstream signal output amplification path and downlink antenna successively; Up reception antenna connects upward signal pre-amplification circuit, upward signal output amplifier and up transmitting antenna successively, it is characterized in that downstream signal pre-amplification circuit input is by patching the descending reception antenna of seated connection, the box combination hub is inserted in output termination downlink electrical source, and pre-amplification circuit is made of filter and the amplifier two-stage filter amplifier that forms of connecting successively; The box contact base is inserted in downstream signal output amplifier input termination downlink electrical source, and output is by patching seated connection downlink antenna, and output amplifier comprises by filter and the amplifier two-stage filter amplifier that forms of connecting successively and constituting; Upward signal pre-amplification circuit input connects capable reception antenna by combination hub, and output connects capable power supply and inserts the box combination hub, and the upward signal pre-amplification circuit is made of amplifier and the filter the two poles of the earth filter amplifier that forms of connecting successively; Upward signal output amplifier input connects capable power supply and inserts the box combination hub, and output connects capable transmitting antenna by combination hub, and the upward signal output amplifier is made of amplifier and the filter the two poles of the earth filter amplifier that forms of connecting successively.。
The most outstanding advantage of the utility model is with low cost, and this mainly is by structural design and reasonably device selection cleverly, makes the technical program have the splendid ratio of performance to price.Easy to manufacture in addition in addition, debug advantages such as simple.
Be further detailed of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is the downstream signal pre-amplification circuit schematic diagram of the utility model embodiment.
Fig. 2 is the downstream signal output amplifier schematic diagram of the utility model embodiment.
Fig. 3 is the upward signal output amplifier schematic diagram of the utility model embodiment.
Fig. 4 is the upward signal pre-amplification circuit schematic diagram of the utility model embodiment.
Fig. 5 is that the power supply of the utility model embodiment inserts the box circuit theory diagrams.
As shown in Figure 1, downstream signal pre-amplification circuit input is by the descending reception antenna of Q9 seated connection, and the box Building F is inserted in output termination downlink electrical source.Pre-amplification circuit comprises the two-stage filter amplifier of being connected successively by filter and amplifier, filter is SAW (Surface Acoustic Wave) filter M-GA, frequency is 935～960MHz, amplifier A08 is the microwave broadband integrated circuit MSA0886 of middle low power, gain is at 70 ℃, 22dB during the 1GHz frequency, output power consumption 0.1W.The input of filter is provided with the capacitor C1 of 5p, punctures SAW (Surface Acoustic Wave) filter to prevent the high power low-frequency signal, avoids self-excitation simultaneously.L1, L2, L3 are filter inductance, are 82nH, and impedance is about 500 ohm when the 1G frequency, and inductance is crossed conference and caused distributed capacitance to strengthen, and except that influencing amplitude-frequency characteristic, also influence self-excitation easily, and too small meeting produces the bypass effect.Integrated regulator is 78L09, the stabilized voltage power supply of 11V.R1, R2 are the biasing resistor of integrated circuit (IC) chip, and the protection to integrated circuit (IC) chip is provided when guaranteeing the circuit operate as normal.D2 is a light-emitting diode, is used to reduce power consumption, and D1 is the protection diode, connects instead to visit electric power polarity.
As shown in Figure 2, descending output amplifier also comprises the two-stage filter amplifier of being connected successively by filter and amplifier, and filter also is SAW (Surface Acoustic Wave) filter M-GA, and amplifier A08 also is a MSA0886 microwave broadband integrated circuit.Other peripheral circuits are also identical with descending pre-amplification circuit.The output termination downlink antenna of descending amplifying circuit, the input power supply inserts the box Building F.
As shown in Figure 3, the upward signal output amplifier comprises the two poles of the earth filter amplifier that is followed in series to form by amplifier and filter, and its input connects capable power supply and inserts the box Building F, and its output is by the up transmitting antenna of Q9 seated connection.In the upward signal output amplifier, amplifier is still selected middle low power microwave broadband integrated circuit A08 (MSA0886), SAW (Surface Acoustic Wave) filter M-G1, and frequency is 890～915MHz.Other peripheral circuits are identical with the downstream signal output amplifier.
As shown in Figure 4, the upward signal pre-amplification circuit comprises the two-pole filter amplification that is followed in series to form by amplifier and filter, and its input is by the up reception antenna of Q9 seated connection, and its output connects capable power supply and inserts the box Building F.All the other structure and parameters and upward signal output amplifier are similar, do not repeat them here.
In order to prevent that thunderbolt all is provided with discharge tube F1 at descending reception antenna and up transmitting antenna place.
As shown in Figure 5, be power supply and insertion box, be not described in detail at this owing to relatively simple for structure.
For under stable, the respond well prerequisite of guaranteed performance, reduce cost, it is 6mm that each antenna can adopt diameter, length is that the metal pipe material of 90mm is made.Certainly, adopt helical antenna, or have better effect at outdoor application MMDS net-shape antenna etc.For reducing the loss in the signals transmission, antenna should directly be connected on each amplifying unit socket place, and without the connection of any cable, because the loss under the 900MHz frequency of any cable is all very big, this also is the key factor that influences product price.
The shell of each unit is an aluminum casting, and should be made of one with joint, to reach firm and rainproof purpose.The joint of each antenna also should have rainproof measure.
Claims (4)
1. direct amplifier system communication repeater, it comprises two essentially identical downstream signal processing units of structure and upward signal processing unit, and descending reception antenna connects downstream signal pre-amplification circuit, downstream signal output amplification path and downlink antenna successively; Up reception antenna connects upward signal pre-amplification circuit, upward signal output amplifier and up transmitting antenna successively, it is characterized in that downstream signal pre-amplification circuit input connects descending reception antenna by combination hub (Q9), box combination hub (F) is inserted in output termination downlink electrical source, the two-stage filter amplifier formation that pre-amplification circuit is connected successively and formed by filter (GA) and amplifier (A08); Box contact base (F) is inserted in downstream signal output amplifier input termination downlink electrical source, output connects the downlink antenna by combination hub (Q9), and output amplifier comprises the two-stage filter amplifier formation of being connected successively and being formed by filter (GA) and amplifier (A08); Upward signal pre-amplification circuit input connects capable reception antenna by combination hub (Q9), output connects capable power supply and inserts box combination hub (F), the two poles of the earth filter amplifier formation that the upward signal pre-amplification circuit is connected successively and formed by amplifier (A08) and filter (G1); Upward signal output amplifier input connects capable power supply and inserts box combination hub (F), output connects capable transmitting antenna by combination hub (Q9), the two poles of the earth filter amplifier formation that the upward signal output amplifier is connected successively and formed by amplifier (A08) and filter (G1).
2. direct amplifier system communication repeater according to claim 1 is characterized in that (GA, G1) input all is provided with and is provided with capacitor (C1) described filter, is 5p.
3. direct amplifier system communication repeater according to claim 1 is characterized in that also comprising filter inductance (L1, L2, L3), is 82nH.
4. direct amplifier system communication repeater according to claim 1 is characterized in that described downstream signal pre-amplification circuit input and upward signal output amplifier output all are connected to discharge tube (F1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01204037 CN2465405Y (en) | 2001-02-23 | 2001-02-23 | Direct amplifying communication repeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01204037 CN2465405Y (en) | 2001-02-23 | 2001-02-23 | Direct amplifying communication repeater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2465405Y true CN2465405Y (en) | 2001-12-12 |
Family
ID=33625358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01204037 Expired - Fee Related CN2465405Y (en) | 2001-02-23 | 2001-02-23 | Direct amplifying communication repeater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2465405Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101675633A (en) * | 2007-03-02 | 2010-03-17 | 高通股份有限公司 | Closed form calculation of temporal equalizer weights used in a repeater transmitter leakage cancellation system |
| CN102142882A (en) * | 2011-04-11 | 2011-08-03 | 苏州英诺迅科技有限公司 | Relay |
-
2001
- 2001-02-23 CN CN 01204037 patent/CN2465405Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101675633A (en) * | 2007-03-02 | 2010-03-17 | 高通股份有限公司 | Closed form calculation of temporal equalizer weights used in a repeater transmitter leakage cancellation system |
| CN102217211A (en) * | 2007-03-02 | 2011-10-12 | 高通股份有限公司 | Automatic gain control and filtering techniques for use in on-channel repeater |
| CN101689913B (en) * | 2007-03-02 | 2013-02-13 | 高通股份有限公司 | Use of a filterbank in an adaptive on-channel repeater utilizing adaptive antenna arrays |
| US8599906B2 (en) | 2007-03-02 | 2013-12-03 | Qualcomm Incorporated | Closed form calculation of temporal equalizer weights used in a repeater transmitter leakage cancellation system |
| US8619837B2 (en) | 2007-03-02 | 2013-12-31 | Qualcomm Incorporated | Use of adaptive antenna array in conjunction with an on-channel repeater to improve signal quality |
| CN102217211B (en) * | 2007-03-02 | 2015-09-30 | 高通股份有限公司 | For automatic growth control and the filtering technique of shared channel repeater |
| CN102142882A (en) * | 2011-04-11 | 2011-08-03 | 苏州英诺迅科技有限公司 | Relay |
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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 |