CN102738597A - Distributed type array antenna system - Google Patents
Distributed type array antenna system Download PDFInfo
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- CN102738597A CN102738597A CN2012101267576A CN201210126757A CN102738597A CN 102738597 A CN102738597 A CN 102738597A CN 2012101267576 A CN2012101267576 A CN 2012101267576A CN 201210126757 A CN201210126757 A CN 201210126757A CN 102738597 A CN102738597 A CN 102738597A
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Abstract
The invention discloses a distributed type array antenna system which comprises a plurality of antenna units, wherein the plurality of antenna units are used for realizing the distribution and continuing of the antenna radiation energy; the plurality of antenna units are connected through radio cables in an end-to-end mode sequentially; the first antenna unit is connected with a wireless transceiver; and the antenna units further comprise antennas and antenna controllers. In the antenna system, the antenna controller of each antenna unit can be connected with an antenna and can be used for recovering or increasing or decreasing wireless signals, thereby realizing the continuing of the wireless signal; the antenna units are connected through radio cables; the stretching and the withdrawing of the distributed type array antennas are realized; when the working environment is changed, the number, the lengths and the sizes of the antennas are changed along with the environment correspondingly; and moreover, the wireless signal can cover effectively according to the system requirements.
Description
Technical field
The present invention relates to a kind of telescopic distributive array antenna system.
Background technology
Antenna is used in radio systems such as communication, broadcasting, TV, radar and navigation widely, has played the effect of radio waves propagate, is radiation effectively and accepts the requisite device of radio wave.
For be applied in tunnel, the building, antenna in the building places such as subway, underground parking, basement, mine and highway, railway; Owing to receive the restriction in these building places, the for example restriction of building structure, the change of building place physical environment etc.; Make that the antenna footprint be applied in these building places, have a general fixed structure is limited; When building place when changing, signal is difficult to the covering that reaches desirable, and maintenance cost is high.
Summary of the invention
The present invention is directed to the problems referred to above that present antenna exists in being applied to tunnel, building, in the limited building place such as subway, underground parking, basement, mine and highway, railway the time, proposed a kind of telescopic distributive array antenna system.
The technological means that the present invention adopts is following: antenna system of the present invention comprises: a plurality ofly be used to realize that antenna energy distributes and the antenna element that continues; Utilize the radio frequency cable to be linked in sequence from beginning to end between a plurality of antenna elements, first antenna element links to each other with wireless transmitting-receiving equipments.Antenna element comprises again: antenna and antenna controller; After the wireless transmission signal that wireless transmitting-receiving equipments sends gets into this antenna system; The antenna controller of last antenna element carries out energy distribution to this wireless transmission signal; A part is by the antenna emission of last antenna element, and another part is amplified into the antenna controller of next antenna element through antenna controller; The antenna of antenna element is after receiving the wireless receiving signal; If what connect this antenna element is wireless transmitting-receiving equipments; The wireless receiving signal that then antenna is received directly is transferred to wireless transmitting-receiving equipments, otherwise after the antenna controller that gets into next wireless transmitting-receiving equipments near the direction of wireless transmitting-receiving equipments carries out power attenuation and amplifies, outputs to the radio frequency cable.
Connect through the radio frequency cable between each antenna element of this antenna system; Can realize the flexible of distributive array antenna; When operational environment changes; Antenna amount, length and size can change along with environment accordingly, and wireless signal can effectively cover according to system requirements.
Description of drawings
Below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated:
Fig. 1 is the overall distribution structure chart of antenna system of the present invention.
Fig. 2 is the structure chart of antenna controller among Fig. 1.
Embodiment
As shown in Figure 1, antenna system of the present invention comprises: a plurality ofly be used to realize that antenna energy distributes and the antenna element that continues, utilize the radio frequency cable to be linked in sequence from beginning to end between a plurality of antenna elements, first antenna element links to each other with wireless transmitting-receiving equipments.Antenna element comprises again: antenna 1 and antenna controller 2; After the wireless transmission signal that wireless transmitting-receiving equipments sends gets into this antenna system; 2 pairs of these wireless transmission signal of the antenna controller of last antenna element are carried out energy distribution; A part is by antenna 1 emission of last antenna element, and another part is amplified into the antenna controller 2 of next antenna element through antenna controller 2; The antenna 1 of antenna element is after receiving the wireless receiving signal; If what connect this antenna element is wireless transmitting-receiving equipments; The wireless receiving signal that then antenna 1 is received directly is transferred to wireless transmitting-receiving equipments, otherwise after the antenna controller that gets into next wireless transmitting-receiving equipments near the direction of wireless transmitting-receiving equipments carries out power attenuation and amplifies, outputs to the radio frequency cable.
As shown in Figure 2; Antenna controller 2 comprises again: connect wireless transmitting-receiving equipments or antenna element through the radio frequency cable, also connect antenna 1 power splitter 21, connect power splitter 21 first circulator 22, connect first circulator 22 first adjustable attenuator 23, connect first adjustable attenuator 23 power amplifier 24, connect first circulator 22 low noise amplifier 25, connect low noise amplifier 25 second adjustable attenuator 26, connect power amplifier 24 with second adjustable attenuator 26, also be connected second circulator 27 of the matched load of antenna element or 50 ohm.For the antenna controller 2 of first antenna element, power splitter 21 connects wireless transmitting-receiving equipments, and second circulator 27 connects antenna element; Antenna controller 2 power splitters 21 for last antenna element connect antenna element, and second circulator 27 connects 50 ohm matched load; For the antenna element in centre position, power splitter 21 connects antenna element, and second circulator 27 connects antenna element.
When the emission wireless signal, the wireless transmission signal with certain power gets into power splitter 21, and 21 pairs of wireless transmission signal of power splitter are carried out power division, and allocation proportion can be distributed arbitrarily according to system requirements, and ordinary circumstance is set to constant power and distributes.After power division, a part of wireless transmission signal is carried out radiation through antenna 1; A part of in addition wireless transmission signal transfers to first adjustable attenuator 23 through first circulator 22, transfers to power amplifier 24 then.Through the pad value of first adjustable attenuator 23 and the yield value of power amplifier 24 are sued for peace; Thereby obtain any yield value A1; If require the electromagnetic wave power of the wireless transmission signal of second circulator, 27 outputs to be not less than the incident power value of the wireless transmission signal that enters into power splitter 21, A1 must be greater than 3dB.Another effect of first adjustable attenuator 23 is the performance number through reduction input power amplifier 24, thereby makes the design of power amplifier 24 obtain simplifying, and improves the whole amplification performance of antenna controller.When receiving wireless signal; The wireless receiving signal transfers to second adjustable attenuator 26 through second circulator 27 after second circulator 27 is incident to antenna controller 2, after overdamping, transfer to low noise amplifier 25; Through the pad value of second adjustable attenuator 26 and the yield value of low noise amplifier 25 are sued for peace; Thereby obtain any yield value A2, the size of A2 value can be set according to system requirements, is mainly used in the loss of offsetting circulator, power splitter and radio frequency cable or radio-frequency joint etc.; Another effect of second adjustable attenuator 26 is a protection low noise amplifier 25, avoids input power excessive and damage device.
In this antenna system, the antenna controller of each antenna element can connect an antenna, and can wireless signal restored or increases and decreases, thereby realizes continuing of wireless signal.Connect through the radio frequency cable between each antenna element; Can realize the flexible of distributive array antenna; When operational environment changed, antenna amount, length and size can change along with environment accordingly, and wireless signal can effectively cover according to system requirements.
Claims (6)
1. a distributive array antenna system is characterized in that comprising a plurality of be used to realize antenna energy distribution and the antenna elements that continue, and utilizes the radio frequency cable to be linked in sequence from beginning to end between a plurality of antenna elements, and first antenna element links to each other with wireless transmitting-receiving equipments; Antenna element comprises again: antenna (1) and antenna controller (2);
After the wireless transmission signal that wireless transmitting-receiving equipments sends gets into this antenna system; The antenna controller of last antenna element (2) carries out energy distribution to this wireless transmission signal; A part is by antenna (1) emission of last antenna element, and another part is amplified into the antenna controller (2) of next antenna element through antenna controller (2); The antenna of antenna element (1) is after receiving the wireless receiving signal; If what connect this antenna element is wireless transmitting-receiving equipments; The wireless receiving signal that then antenna (1) is received directly is transferred to wireless transmitting-receiving equipments, otherwise after the antenna controller that gets into next wireless transmitting-receiving equipments near the direction of wireless transmitting-receiving equipments carries out power attenuation and amplifies, outputs to the radio frequency cable.
2. system according to claim 1; It is characterized in that antenna controller (2) comprises again: connect wireless transmitting-receiving equipments or antenna element through the radio frequency cable; The power splitter (21) that also connects antenna (1); First circulator (22) that connects power splitter (21); First adjustable attenuator (23) that connects first circulator (22) connects the power amplifier (24) of first adjustable attenuator (23), connects the low noise amplifier (25) of first circulator (22); Second adjustable attenuator (26) that connects low noise amplifier (25) connects power amplifier (24) with second adjustable attenuator (26), also be connected second circulator (27) of the matched load of antenna element or 50 ohm.
3. system according to claim 2 is characterized in that the power splitter (21) of the antenna controller (2) of first antenna element connects wireless transmitting-receiving equipments, and second circulator (27) connects antenna element; The power splitter (21) of the antenna controller of last antenna element (2) connects antenna element, and second circulator (27) connects 50 ohm matched load; The power splitter of the antenna element in centre position (21) connects antenna element, and second circulator (27) connects antenna element.
4. system according to claim 3 is characterized in that the wireless transmission signal with certain power gets into power splitter (21) when the emission wireless signal, and power splitter (21) carries out power division to wireless transmission signal; After power division, a part of wireless transmission signal is carried out radiation through antenna (1); A part of in addition wireless transmission signal transfers to first adjustable attenuator (23) through first circulator (22), transfers to power amplifier (24) then, is exported to the matched load of next antenna element or 50 ohm by second circulator (27).
5. system according to claim 3; It is characterized in that when receiving wireless signal; The wireless receiving signal transfers to second adjustable attenuator (26) through second circulator (27) after second circulator (27) is incident to antenna controller (2), after overdamping, transfer to low noise amplifier (25); Export to power splitter (21) by first circulator (22) again, export to last antenna element and wireless transmitting-receiving equipments by power splitter (21).
6. system according to claim 1 is characterized in that antenna (1) is omnidirectional antenna, directional antenna or leaky wave antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210126757.6A CN102738597B (en) | 2012-04-26 | 2012-04-26 | Distributed type array antenna system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210126757.6A CN102738597B (en) | 2012-04-26 | 2012-04-26 | Distributed type array antenna system |
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| Publication Number | Publication Date |
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| CN102738597A true CN102738597A (en) | 2012-10-17 |
| CN102738597B CN102738597B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210126757.6A Expired - Fee Related CN102738597B (en) | 2012-04-26 | 2012-04-26 | Distributed type array antenna system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731846A (en) * | 2014-01-06 | 2014-04-16 | 东南大学 | Directional antenna and omni-directional antenna combined distributive antenna system |
| CN103916944A (en) * | 2012-12-31 | 2014-07-09 | 上海贝尔股份有限公司 | Distributed antenna system and power distribution method thereof |
| CN103973346A (en) * | 2014-05-23 | 2014-08-06 | 大连海事大学 | Distributed antenna control system |
| CN104901729A (en) * | 2014-03-07 | 2015-09-09 | 慧流系统整合股份有限公司 | Low-interference distributed antenna system signal transmission method and remote antenna unit thereof |
| CN111337780A (en) * | 2020-03-27 | 2020-06-26 | 南京宽超通信技术有限公司 | Portable BUC fault detector and fault detection method |
| CN114337747A (en) * | 2020-09-30 | 2022-04-12 | 新岸线(北京)科技集团有限公司 | Distributed antenna system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101790179A (en) * | 2010-02-12 | 2010-07-28 | 中国矿业大学(北京) | Mine mobile communication system |
| CN101841935A (en) * | 2010-05-12 | 2010-09-22 | 新邮通信设备有限公司 | Single-antenna remote radio unit |
-
2012
- 2012-04-26 CN CN201210126757.6A patent/CN102738597B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101790179A (en) * | 2010-02-12 | 2010-07-28 | 中国矿业大学(北京) | Mine mobile communication system |
| CN101841935A (en) * | 2010-05-12 | 2010-09-22 | 新邮通信设备有限公司 | Single-antenna remote radio unit |
Non-Patent Citations (1)
| Title |
|---|
| 刘聪: "高铁隧道覆盖天线系统的设计", 《中国优秀硕士学位论文全文数据库 信息科技辑》, no. 12, 15 December 2011 (2011-12-15), pages 27 - 36 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103916944A (en) * | 2012-12-31 | 2014-07-09 | 上海贝尔股份有限公司 | Distributed antenna system and power distribution method thereof |
| CN103916944B (en) * | 2012-12-31 | 2018-05-11 | 上海诺基亚贝尔股份有限公司 | Distributing antenna system and its power distribution method |
| CN103731846A (en) * | 2014-01-06 | 2014-04-16 | 东南大学 | Directional antenna and omni-directional antenna combined distributive antenna system |
| CN104901729A (en) * | 2014-03-07 | 2015-09-09 | 慧流系统整合股份有限公司 | Low-interference distributed antenna system signal transmission method and remote antenna unit thereof |
| CN103973346A (en) * | 2014-05-23 | 2014-08-06 | 大连海事大学 | Distributed antenna control system |
| CN103973346B (en) * | 2014-05-23 | 2017-03-15 | 大连海事大学 | A kind of spaced antenna control system |
| CN111337780A (en) * | 2020-03-27 | 2020-06-26 | 南京宽超通信技术有限公司 | Portable BUC fault detector and fault detection method |
| CN114337747A (en) * | 2020-09-30 | 2022-04-12 | 新岸线(北京)科技集团有限公司 | Distributed antenna system |
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| Publication number | Publication date |
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| CN102738597B (en) | 2015-01-21 |
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Granted publication date: 20150121 Termination date: 20160426 |