CN101005160B - Simple antenna array - Google Patents
Simple antenna array Download PDFInfo
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- CN101005160B CN101005160B CN2006100332036A CN200610033203A CN101005160B CN 101005160 B CN101005160 B CN 101005160B CN 2006100332036 A CN2006100332036 A CN 2006100332036A CN 200610033203 A CN200610033203 A CN 200610033203A CN 101005160 B CN101005160 B CN 101005160B
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Abstract
Being in use for communication system for multiple points to single point, the simple antenna array includes several antennae and several mixers especially. Through attenuator, one input end of each mixer is connected to corresponding antenna electrically. The mixers through several cable assemble are cascaded. Output of mixer in last stage is as the output of the antenna array. The said cable assemble is custom built cable with standard adaptor at two ends. The standard adaptor is adaptive to adaptor of mixer. Number of antenna is 2-8 pieces. The disclosed antenna array possesses advantages of strong capability of resisting blocking and intermodulation, easy of installation, simple maintenance, and convenient for production in scale.
Description
Technical field
The present invention relates to antenna technology, relate in particular to the simple antenna array that is used for the remote measurement receiving system.
Background technology
The principle of indoor covering compartment system is to utilize small distributed antenna system (being antenna array) to handle from the wireless signal of base station or portable terminal; Make the wireless signal at center (base station) can be evenly distributed to the every nook and cranny of building, center (base station) also can receive the portable terminal signal from indoor each corner.Thereby guarantee that each zone has desirable signal and covers.
Press the equipment that is adopted, said indoor distributed system can be divided into passive system and active system.Passive system mainly is made up of passive device, and equipment performance is stable, safe, maintenance is simple.Active system is exaggerated device before the ends and is amplified to ideal tensile strength because of signal arrives through attenuations at different levels, thereby has covering effect of signals preferably; But the construction of active system, maintenance are comparatively complicated, and near-end all needs power supply source with all remote equipments.Therefore, the present more employing passive system of indoor distributed system.
Remote measurement monitoring or test are important directions of field of medical production development.This series products comprises the emitter that moves with human body, will guard or test data through wireless transmission method, be sent to relatively-stationary receiving system and make further analyzing and processing.Compare with above-mentioned prior art, what it was more stressed is the rational deployment of antenna array, maybe transmitting from each corner thereby receive.
No matter what existing telemetering antenna battle array adopted is communication satellite or passive array; All have following weak point: 1) need professional person's site operation, thereby after service cost is high, the cycle is long; Construction is high with maintenance difficulties, is unfavorable for the application of remote measurement monitoring or test products; 2) use to multiple spot, if use communication satellite, have complex equipments, if the shortcoming of poor reliability need not complicated communication satellite, be blocked and the problem of anti-intermodulation ability but be difficult to solve.
Summary of the invention
The technical problem that the present invention will solve is to propose a kind of simple antenna array to the deficiency of above-mentioned prior art, is convenient to simple construction and implemented with low cost, when being used for the remote measurement receiving system, also has signal stabilization, the strong advantage of anti-intermodulation ability.
For solving the problems of the technologies described above, of the present inventionly be contemplated that basically, adopt equipment performance to stablize, safeguard simple passive system, simplify site operation through the annexation between standardization CA cable assembly, connector and they and the antenna; After each antenna converts the wireless signal in space into the signal of telecommunication; Through cable and mixer with each road signal of telecommunication accumulate one the tunnel be sent to receiving equipment antenna input; Thereby wireless signal is introduced directly into indoor receiving system through wired mode; Eliminate coverage hole, suppress to disturb, for the remote measurement user provides stable, receives signal reliably.
As realizing that the technical scheme that the present invention conceives is, a kind of simple antenna array is provided, comprise some antennas, especially, also comprise some mixers, one of input of each said mixer all is electrically connected with a corresponding antenna through attenuator; Said some mixers are connected in series cascade one by one through some CA cable assemblies, and the output of afterbody mixer is as the output of this antenna array; Said each CA cable assembly length is 10～31 meters; Said each antenna is pressed laterally or vertically in total isolated area and is arranged; And be spaced apart 15 ± 5 meters laterally or between the wantonly two vertically adjacent said antennas; This simple antenna array is a passive system, and the receiving equipment of remote measurement monitoring or test is sent in the output of this simple antenna array.Thereby this antenna array need not the professional and technical personnel and participates in construction or maintenance, has reduced cost.
In the such scheme, said each CA cable assembly is the custom cable of two ends band modular connection, and the joint of this modular connection and said mixer is suitable.
In the such scheme, said attenuator is the coaxial attenuator of 0～30dB attenuation.
In the such scheme, directly be electrically connected without attenuator between said first order mixer and the respective antenna.
Adopt the antenna array of above-mentioned each technical scheme, have stronger antiblocking and intermodulation ability, and install simple and easyly, cost is low, is convenient to large-scale production.Because there is not complex devices, system also have stable performance, safe, safeguard simple advantage.
Description of drawings Fig. 1 is an antenna array structural representation of the present invention
Fig. 2 is the some situation sketch mapes of structuring the formation of the antenna of antenna array of the present invention
Embodiment
Below, further set forth the present invention in conjunction with the most preferred embodiment shown in the accompanying drawing.
Fig. 1 has illustrated the present invention to be used to receive the antenna array structure of the low-cost indoor covering compartment system of wireless signal.It comprises the antenna and the mixer of some reception spacing wireless signals, and each mixer all has at least an input to be electrically connected a respective antenna through attenuator.Said antenna can adopt common antenna, and for example the input and output impedance all is 50 ohm, the interface that adopts the TNC joint is so that direct adaptive connection mixer.The coaxial attenuator of 0～30dB attenuation can selected and buy to said attenuator for use, is used for preventing signal jam and Intermodulation Interference.
Said some mixers are connected in series cascade one by one through some CA cable assemblies, and the output of previous stage is electrically connected the input of back one-level, thereby the output of afterbody mixer is as the output of this antenna array.This antenna array is fit to the communication system of multiple spot to single-point (multiple spot emission, single-point receives), and for example said antenna array output can be sent to the receiving equipment of remote measurement monitoring or test.Said mixer can adopt 2 common power splitters or 3 to lead to, and each interface impedance is 50 ohm.Said first order mixer and respective antenna can omit attenuator between the promptly illustrated antenna 1 and directly electrical connection.
Said CA cable assembly is the custom cable of two ends band modular connection, and the joint of this modular connection and said mixer is suitable, comprises TNC, N, BNC connector or other joint; The joint of general said mixer is set to female head.Said CA cable assembly length is 10～31 meters, can order work by unified specification (for example 15 or 30 meters) according to concrete use occasion, thereby need not make cable joint in the erecting bed, is convenient to large-scale production.
The quantity of said antenna is 2～8.Generally place an antenna at each isolated area, said isolated area refers to have with other part the separate space of thick wall or metal isolation.When isolated area is bigger, be example with four kinds of situations shown in Figure 2, a plurality of antennas can be set, each antenna is by laterally or vertically arranging; Be spaced apart 15 ± 5 meters laterally or between vertically adjacent wantonly two antennas.Like this, the ordinary person just can adorn antenna array to specifications, thereby solves antenna array construction and maintenance issues.
Antenna array of the present invention also can multiple laying in a public domain.
Through verification experimental verification, antenna array circuit structure of the present invention is optimized, and feeder line is short, and feeder loss is less, thereby receiving system can be through being distributed in the antenna of zones of different, introduce radio frequency signal indoor effectively or other can not receive the place of covering; And reliability is high, and antinoise signal blocks with the intermodulation ability stronger.
Claims (6)
1. a simple antenna array comprises some antennas, it is characterized in that:
Also comprise some mixers, one of input of said each mixer all is electrically connected with a corresponding antenna through attenuator; Said some mixers are connected in series cascade one by one through some CA cable assemblies, and the output of afterbody mixer is as the output of this antenna array; Said each CA cable assembly length is 10～31 meters; Said each antenna is pressed laterally or vertically in total isolated area and is arranged; And be spaced apart 15 ± 5 meters laterally or between the wantonly two vertically adjacent said antennas;
This simple antenna array is a passive system, and the receiving equipment of remote measurement monitoring or test is sent in the output of this simple antenna array.
2. simple antenna array according to claim 1 is characterized in that:
Said each CA cable assembly is the custom cable of two ends band modular connection, and the joint of this modular connection and said mixer is suitable.
3. simple antenna array according to claim 2 is characterized in that:
Said modular connection comprises TNC, N or BNC connector.
4. simple antenna array according to claim 1 is characterized in that:
Said attenuator is the coaxial attenuator of 0～30dB attenuation.
5. simple antenna array according to claim 1 is characterized in that:
Directly be electrically connected without attenuator between said first order mixer and the respective antenna.
6. simple antenna array according to claim 1 is characterized in that:
The quantity of said antenna is 2～8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100332036A CN101005160B (en) | 2006-01-20 | 2006-01-20 | Simple antenna array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100332036A CN101005160B (en) | 2006-01-20 | 2006-01-20 | Simple antenna array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101005160A CN101005160A (en) | 2007-07-25 |
| CN101005160B true CN101005160B (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100332036A Active CN101005160B (en) | 2006-01-20 | 2006-01-20 | Simple antenna array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101005160B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1273443A (en) * | 1999-04-26 | 2000-11-15 | 安德鲁公司 | Antenna structure and installation |
| CN1579035A (en) * | 1999-07-21 | 2005-02-09 | 塞勒特拉有限公司 | Active antenna array configuration and control for cellular communication systems |
-
2006
- 2006-01-20 CN CN2006100332036A patent/CN101005160B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1273443A (en) * | 1999-04-26 | 2000-11-15 | 安德鲁公司 | Antenna structure and installation |
| CN1579035A (en) * | 1999-07-21 | 2005-02-09 | 塞勒特拉有限公司 | Active antenna array configuration and control for cellular communication systems |
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| Publication number | Publication date |
|---|---|
| CN101005160A (en) | 2007-07-25 |
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