CN102738597B - Distributed type array antenna system - Google Patents
Distributed type array antenna system Download PDFInfo
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- CN102738597B CN102738597B CN201210126757.6A CN201210126757A CN102738597B CN 102738597 B CN102738597 B CN 102738597B CN 201210126757 A CN201210126757 A CN 201210126757A CN 102738597 B CN102738597 B CN 102738597B
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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 widely used in the radio systems such as communication, broadcast, TV, radar and navigation, serves the effect of radio waves propagate, is radiation effectively and accepts the requisite device of radio wave.
For being applied in tunnel, building, subway, underground parking, basement, antenna in mine and the building such as highway, railway place, owing to being subject to the restriction in these building places, the restriction of such as building structure, the change etc. of building place physical environment, make to be applied in these building places, to have the antenna footprint of general fixed structure limited, when building place and changing, signal is difficult to reach desirable covering, and maintenance cost is high.
Summary of the invention
The present invention is directed to current antenna being applied in tunnel, building, subway, underground parking, basement, in mine and the limited building place such as highway, railway time the problems referred to above of existing, propose a kind of telescopic distributive array antenna system.
The technological means that the present invention adopts is as follows: antenna system of the present invention comprises: multiple for realizing the antenna element that antenna energy is distributed and continued, utilize RF cable head and the tail to be linked in sequence between multiple antenna element, first antenna element is connected with wireless transmitting-receiving equipments.Antenna element comprises again: antenna and antenna controller; After the wireless transmission signal that wireless transmitting-receiving equipments sends enters 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 transmission 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 wireless reception of signals, if what connect this antenna element is wireless transmitting-receiving equipments, then the wireless reception of signals that antenna receives directly is transferred to wireless transmitting-receiving equipments, otherwise the antenna controller entering next wireless transmitting-receiving equipments to the direction near wireless transmitting-receiving equipments carries out power attenuation and outputs to RF cable after amplifying.
Connected by RF cable between each antenna element of this antenna system, the flexible of distributive array antenna can be realized, when operational environment changes, antenna amount, length and size can change accordingly along with environment, and wireless signal effectively can cover according to system requirements.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further elaborated:
Fig. 1 is the overall distribution structure chart of inventive antenna system.
Fig. 2 is the structure chart of antenna controller in Fig. 1.
Embodiment
As shown in Figure 1, antenna system of the present invention comprises: multiple for realizing the antenna element that antenna energy is distributed and continued, utilize RF cable head and the tail to be linked in sequence between multiple antenna element, first antenna element is connected 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 enters this antenna system, the antenna controller 2 of last antenna element carries out energy distribution to this wireless transmission signal, a part is launched by the antenna 1 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 wireless reception of signals, if what connect this antenna element is wireless transmitting-receiving equipments, then the wireless reception of signals that antenna 1 receives directly is transferred to wireless transmitting-receiving equipments, otherwise the antenna controller entering next wireless transmitting-receiving equipments to the direction near wireless transmitting-receiving equipments carries out power attenuation and outputs to RF cable after amplifying.
Antenna 1 can be any one antenna existing, as omnidirectional antenna, directional antenna or leaky wave antenna etc.Time distant between adjacent antenna units, next antenna element along wireless transmission signal transmission direction also comprises rf repeater 3, compensates for the electromagnetic loss of radio frequency cable transmission.
As shown in Figure 2, antenna controller 2 comprises again: connect wireless transmitting-receiving equipments or antenna element by RF cable, the second circulator 27 also connecting the power splitter 21 of antenna 1, connect the first circulator 22 of power splitter 21, connect the first adjustable attenuator 23 of the first circulator 22, connect the power amplifier 24 of the first adjustable attenuator 23, connect the low noise amplifier 25 of the first circulator 22, connect the second adjustable attenuator 26 of low noise amplifier 25, connect power amplifier 24 and the second adjustable attenuator 26, be also connected 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 the second circulator 27 connects antenna element; Antenna controller 2 power splitter 21 for last antenna element connects antenna element, and the second circulator 27 connects the matched load of 50 ohm; For the antenna element in centre position, power splitter 21 connects antenna element, and the second circulator 27 connects antenna element.
When wireless signal emission, the wireless transmission signal with certain power enters power splitter 21, and power splitter 21 pairs of wireless transmission signal carry 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 carries out radiation through antenna 1; A part of wireless transmission signal transfers to the first adjustable attenuator 23 through the first circulator 22 in addition, then transfers to power amplifier 24.By suing for peace to the pad value of the first adjustable attenuator 23 and the yield value of power amplifier 24, thus obtain any one yield value A1, if require that the electromagnetic wave power of the wireless transmission signal that the second circulator 27 exports is not less than the incident power value of the wireless transmission signal entering into power splitter 21, A1 must be greater than 3dB.Another effect of first adjustable attenuator 23 is the performance number by reducing input power amplifier 24, thus the design of power amplifier 24 is simplified, and improves the amplification performance of antenna controller entirety.When receiving wireless signal, wireless reception of signals is after the second circulator 27 is incident to antenna controller 2, the second adjustable attenuator 26 is transferred to through the second circulator 27, low noise amplifier 25 is transferred to after overdamping, by suing for peace to the pad value of the second adjustable attenuator 26 and the yield value of low noise amplifier 25, thus obtain any one yield value A2, the size of A2 value can set according to system requirements, be mainly used in offsetting circulator, the loss of power splitter and RF cable or radio-frequency joint etc., another effect of second adjustable attenuator 26 is protection low noise amplifier 25, avoid input power excessive and damage device.
In this antenna system, the antenna controller of each antenna element can connect an antenna, and wireless signal can be carried out restoring or increasing and decreasing, thus realizes continuing of wireless signal.Connected by RF cable between each antenna element, the flexible of distributive array antenna can be realized, when operational environment changes, antenna amount, length and size can change accordingly along with environment, and wireless signal effectively can cover according to system requirements.
Claims (2)
1. a distributive array antenna system, it is characterized in that comprising and multiplely to distribute and the antenna element continued for realizing antenna energy, utilize RF cable head and the tail to be linked in sequence between multiple antenna element, first antenna element is connected 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 enters this antenna system, the antenna controller (2) of last antenna element carries out energy distribution to this wireless transmission signal, a part is launched by the antenna (1) 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 wireless reception of signals, if what connect this antenna element is wireless transmitting-receiving equipments, then the wireless reception of signals that antenna (1) receives directly is transferred to wireless transmitting-receiving equipments, otherwise the antenna controller entering next wireless transmitting-receiving equipments to the direction near wireless transmitting-receiving equipments carries out power attenuation and outputs to RF cable after amplifying;
Wherein, antenna controller (2) comprises again: connect wireless transmitting-receiving equipments or antenna element by RF cable, also connect the power splitter (21) of antenna (1), connect first circulator (22) of power splitter (21), connect first adjustable attenuator (23) of the first circulator (22), connect the power amplifier (24) of the first adjustable attenuator (23), connect the low noise amplifier (25) of the first circulator (22), connect second adjustable attenuator (26) of low noise amplifier (25), connect power amplifier (24) and the second adjustable attenuator (26), also connect second circulator (27) of the matched load of antenna element or 50 ohm,
The power splitter (21) of the antenna controller (2) of first antenna element connects wireless transmitting-receiving equipments, and the second circulator (27) connects antenna element; The power splitter (21) of the antenna controller (2) of last antenna element connects antenna element, and the second circulator (27) connects the matched load of 50 ohm; The power splitter (21) of the antenna element in centre position connects antenna element, and the second circulator (27) connects antenna element;
When wireless signal emission, the wireless transmission signal with certain power enters power splitter (21), and power splitter (21) carries out power division to wireless transmission signal; After power division, a part of wireless transmission signal carries out radiation through antenna (1); A part of wireless transmission signal transfers to the first adjustable attenuator (23) through the first circulator (22) in addition, then transfer to power amplifier (24), exported to the matched load of next antenna element or 50 ohm by the second circulator (27);
When receiving wireless signal, wireless reception of signals is incident to after antenna controller (2) through the second circulator (27), the second adjustable attenuator (26) is transferred to through the second circulator (27), low noise amplifier (25) is transferred to after overdamping, export to power splitter (21) by the first circulator (22) again, export to last antenna element and wireless transmitting-receiving equipments by power splitter (21).
2. 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210126757.6A CN102738597B (en) | 2012-04-26 | 2012-04-26 | Distributed type array antenna system |
Publications (2)
| Publication Number | Publication Date |
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| CN102738597A CN102738597A (en) | 2012-10-17 |
| CN102738597B true 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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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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***整合股份有限公司 | Low-interference distributed antenna system signal transmission method and remote antenna unit thereof |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101790179B (en) * | 2010-02-12 | 2012-07-11 | 中国矿业大学(北京) | Mine mobile communication system |
| CN101841935B (en) * | 2010-05-12 | 2013-05-22 | 新邮通信设备有限公司 | Single-antenna remote radio unit |
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2012
- 2012-04-26 CN CN201210126757.6A patent/CN102738597B/en not_active Expired - Fee Related
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| CN102738597A (en) | 2012-10-17 |
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Granted publication date: 20150121 Termination date: 20160426 |