CN201238302Y - Power amplifier of wireless local area network - Google Patents
Power amplifier of wireless local area network Download PDFInfo
- Publication number
- CN201238302Y CN201238302Y CNU2008200377690U CN200820037769U CN201238302Y CN 201238302 Y CN201238302 Y CN 201238302Y CN U2008200377690 U CNU2008200377690 U CN U2008200377690U CN 200820037769 U CN200820037769 U CN 200820037769U CN 201238302 Y CN201238302 Y CN 201238302Y
- Authority
- CN
- China
- Prior art keywords
- power amplifier
- signal
- switch
- coupler
- frequency interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a wireless local-area-network power amplifier; a radio-frequency signal that is transmitted by AP is inputted to a coupler through an AP radio-frequency interface, and a control circuit controls the work of a first switch and a downstream power amplifier, and the radio-frequency signal is amplified by a downstream low-noise amplifier and a downstream power amplifier after being attenuated by a downstream attenuator, and finally the signal is transmitted by a circulator through an antenna radio-frequency interface; when no downstream signal is inputted, the first switch is switched to an upstream link; an upstream signal that is received by the antenna radio-frequency interface enters into an upstream low-noise amplifier through a second switch after passing through the circulator to be amplified, and after the amplification, the signal is amplified by an upstream power amplifier, and the signal is finally transmitted by the first switch and the coupler to AP through the AP radio-frequency interface. The amplifier makes full use of the capacity of AP, and enlarges the coverage range of AP, and improves the coverage effect, thereby reducing the investment of the operator.
Description
Technical field
The utility model relates to a kind of power amplifier, specifically is a kind of WLAN (wireless local area network) (Wireless Local AreaNetwork--WLAN) power amplifier.
Background technology
In wireless local area network technology, using the most general standard is IEEE (Institute of Electrical and Electric Engineers) 802.11 series standards, uses that the relevant ieee standard of 2.4GHz frequency band includes 802.11,802.11b, 802.11b+, 802.11g etc.The application of any local area network (LAN), network operating system agreement can be moved on the net at the wireless local that meets the IEEE802.11 series standard.
Wireless local area network (WLAN) system generally comprises adapter and access point (Access Point, AP) two parts.Adapter is connected with user terminal (for example computer equipment etc.), and AP is connected with local network or public network through Ethernet.In the frequency band of 2.4G, with time division multiplexing mode, by antenna exchange message separately, thereby the wireless interface that realizes user terminal and network is put between adapter and the AP.
Present Wireless LAN indoor covering system or method are by the IEEE802.11 series standard, arrange AP everywhere indoor, so that the user terminal that corresponding adapter has been installed inserts local network or public network with wireless mode in the scope that the AP signal covers.Above-mentioned this coverage mode is called full AP mode, this access way, because antenna all is installed on the AP, the overlay area of a contact is limited, therefore, for the blind area not occurring, in the overlay area, need to arrange a large amount of AP, these AP will be connected with network equipments such as switch, hubs by traditional ethernet line.Yet a large amount of wirings are very difficult in the building of having fitted up.And, the signal fadeout that complex environments such as indoor partition cause makes AP on average have only about 20 meters at indoor coverage distance, this will cause under the situation of same coverage, and the quantity of the needed AP quantity of indoor covering and the network equipment increases greatly, has improved construction cost.
In addition, the increase of AP layout density, it is complicated more that frequency planning is got.Also can cause simultaneously moving process between each AP overlay area, frequently to switch, influence the mobile effect of user terminal and the stable operation of network.
Therefore, present single AP signal coverage areas is the reason place of causing the problems referred to above for a short time.
Existence in view of the above problems, we have proposed the AP signal is distributed at indoor covering system the imagination of amplification, an AP is undertaken can inserting 1 ~ 10 wireless LAN power amplifier after the signal allocation by power splitter, coupler, and it is many that the indoor covering system that can solve WLAN (wireless local area network) exists the AP that needs, the wasting of resources, area coverage is little, the line complexity, poor stability, problems such as cost height, improve the utilance of AP capacity, reduce cost of investment.So, power amplifier becomes the important ring in the WLAN (wireless local area network), and does not also occur the like product of mature and reliable in the market.
The utility model content
The utility model provides a kind of novel, reasonable in design for solving the problems of the technologies described above, and the low novel radio local area network (LAN) power amplifier of equipment manufacturing cost.
Wireless LAN power amplifier described in the utility model, it comprises the AP radio frequency interface, coupler, microwave switch, uplink and downlink attenuator, uplink and downlink LNA, uplink and downlink power amplifier, circulator, control circuit and antenna radio frequency interface; The radiofrequency signal that AP sends enters coupler by the AP radio frequency interface, by coupler coupled signal and detection, judge and have or not the downstream signal input, when importing, downstream signal controls first switch and downlink power amplifier work by control circuit, the ascending power amplifier cuts out simultaneously, radiofrequency signal flows to down link by first switch behind coupler, behind the downstream attenuation device, amplify through descending LNA and downlink power amplifier again, send by the antenna radio frequency interface by circulator at last; And do not have downstream signal when input when coupler detects, first switch is beaten to up link, downlink power amplifier is closed simultaneously, the upward signal that received by the antenna radio frequency interface this moment by circulator after second switch enters up LNA, amplify after up attenuator and amplify, at last successively through being sent to AP by the AP radio frequency interface behind first switch, the coupler by the ascending power amplifier.
Wherein the effect of attenuator is in engineering because the uncertainty of input signal, and some local big some places is little, can regulate gain by it, reaches the uplink downlink balance, makes the stable and applying flexible of engineering effort.
Be directly used in indoor covering than existing AP, remarkable advantage of the present utility model is:
1, makes full use of the capacity of AP, enlarged the coverage of AP, improved coverage effect, thereby reduced operator's investment.
2, equipment investment is little, and instant effect is for the quick building WLAN network of operator provides advantage.
3, novel, reasonable in design, and equipment manufacturing cost is low, effect is good, and its market prospects are considerable.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is a networking network structure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and example the utility model is specifically described.
As shown in Figure 1, wireless LAN power amplifier described in the utility model mainly comprises the AP radio frequency interface, coupler, attenuator, microwave switch, low noise amplifier, power amplifier module, power module, antenna radio frequency interface.
Operation principle of the present utility model is: the frequency that AP sends is that the radiofrequency signal of 2400-2483.5MHZ enters coupler by the AP radio frequency interface, by coupler coupled signal and detection, judge and have or not the downstream signal input, when importing, downstream signal controls first switch and downlink power amplifier work by control circuit, the ascending power amplifier cuts out simultaneously, radiofrequency signal flows to down link by first switch behind coupler, behind the downstream attenuation device, amplify through descending LNA and downlink power amplifier again, send by the antenna radio frequency interface by circulator at last; And do not have downstream signal when input when coupler detects, first switch is beaten to up link, downlink power amplifier is closed simultaneously, the upward signal that received by the antenna radio frequency interface this moment by circulator after second switch enters up LNA, amplify after up attenuator and amplify, at last successively through being sent to AP by the AP radio frequency interface behind first switch, the coupler by the ascending power amplifier.
The transmitting power of above-mentioned amplifier primary module is 0.5～5 watt.
As shown in Figure 2, the networking network structure of the utility model example.
Its characteristics are: an AP is undertaken can inserting 1～10 wireless LAN power amplifier after the signal allocation by power splitter, coupler, it is many that the indoor covering system that can solve WLAN (wireless local area network) exists the AP that needs, the wasting of resources, area coverage is little, the line complexity, poor stability, problems such as cost height, improve the utilance of AP capacity, reduce cost of investment.
Main feature of the present utility model:
1, takes full advantage of the capacity of AP, enlarged the coverage of AP, improved coverage effect, thereby reduce fortune The merchant of battalion investment.
2, equipment investment is little, and instant effect is for operator's fast assembling wlan network provides advantage.
3, novel, reasonable in design, and equipment manufacturing cost is low, effect is good, and its market prospects are considerable.
Claims (1)
1, a kind of wireless LAN power amplifier is characterized in that: it comprises AP radio frequency interface, coupler, microwave switch, the uplink and downlink attenuator, uplink and downlink LNA, uplink and downlink power amplifier, circulator, control circuit is to the power supply and the antenna radio frequency interface of control circuit power supply; The radiofrequency signal that AP sends enters coupler by the AP radio frequency interface, by coupler coupled signal and detection, judge and have or not the downstream signal input, when importing, downstream signal controls first switch and downlink power amplifier work by control circuit, the ascending power amplifier cuts out simultaneously, radiofrequency signal flows to down link by first switch behind coupler, behind the downstream attenuation device, amplify through descending LNA and downlink power amplifier again, send by the antenna radio frequency interface by circulator at last; And do not have downstream signal when input when coupler detects, first switch is beaten to up link, downlink power amplifier is closed simultaneously, the upward signal that received by the antenna radio frequency interface this moment by circulator after second switch enters up LNA, amplify after up attenuator and amplify, at last successively through being sent to AP by the AP radio frequency interface behind first switch, the coupler by the ascending power amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200377690U CN201238302Y (en) | 2008-07-02 | 2008-07-02 | Power amplifier of wireless local area network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200377690U CN201238302Y (en) | 2008-07-02 | 2008-07-02 | Power amplifier of wireless local area network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201238302Y true CN201238302Y (en) | 2009-05-13 |
Family
ID=40651035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200377690U Expired - Fee Related CN201238302Y (en) | 2008-07-02 | 2008-07-02 | Power amplifier of wireless local area network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201238302Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740428A (en) * | 2012-06-20 | 2012-10-17 | 华为技术有限公司 | Method for regulating and controlling transmitting power and wireless router equipment |
| CN105071864A (en) * | 2015-09-07 | 2015-11-18 | 江苏亿通高科技股份有限公司 | Optical fiber amplifier with radio frequency detection function |
| CN106211193A (en) * | 2016-09-20 | 2016-12-07 | 南京物联传感技术有限公司 | A kind of electromagnetic wave green cladding system and method |
| CN107179727A (en) * | 2016-03-10 | 2017-09-19 | 广州特信网络技术有限公司 | The intelligent monitor system of superconduction access system |
-
2008
- 2008-07-02 CN CNU2008200377690U patent/CN201238302Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740428A (en) * | 2012-06-20 | 2012-10-17 | 华为技术有限公司 | Method for regulating and controlling transmitting power and wireless router equipment |
| CN102740428B (en) * | 2012-06-20 | 2015-04-15 | 华为技术有限公司 | Method for regulating and controlling transmitting power and wireless router equipment |
| US9351245B2 (en) | 2012-06-20 | 2016-05-24 | Huawei Technologies Co., Ltd. | Method for regulating transmit power and wireless routing device |
| CN105071864A (en) * | 2015-09-07 | 2015-11-18 | 江苏亿通高科技股份有限公司 | Optical fiber amplifier with radio frequency detection function |
| CN107179727A (en) * | 2016-03-10 | 2017-09-19 | 广州特信网络技术有限公司 | The intelligent monitor system of superconduction access system |
| CN106211193A (en) * | 2016-09-20 | 2016-12-07 | 南京物联传感技术有限公司 | A kind of electromagnetic wave green cladding system and method |
| CN106211193B (en) * | 2016-09-20 | 2023-03-24 | 南京物联传感技术有限公司 | Electromagnetic wave green covering device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102377470B (en) | Reconfigurable radio node and the method with the collaborative work of macrocell WAP (wireless access point) | |
| CN105610485A (en) | Wireless relay communication system SWIPT (Simultaneous Wireless Information and Power Transfer) method | |
| CN201238302Y (en) | Power amplifier of wireless local area network | |
| Blume et al. | Energy efficiency of lte networks under traffic loads of 2020 | |
| CN102802241B (en) | The system of selection of a kind of high energy efficiency wireless relay | |
| CN204145497U (en) | A kind of WIFI relay apparatus | |
| CN203661296U (en) | Extension covering equipment for TD-LTE double channel MIMO signal | |
| CN203942528U (en) | A kind of wireless coverage strengthens equipment | |
| CN103647846A (en) | Digital multipoint distribution system and transmission processing method thereof | |
| CN201699704U (en) | Three-frequency wireless repeater | |
| CN106162670A (en) | Indoor cellular system and data transmission method, base station equipment and antenna assembly | |
| CN201479134U (en) | GSM wireless repeater station with ascending noise inhibition function | |
| CN102547828B (en) | A kind of device and method testing mobile communication network performance | |
| CN211769564U (en) | Novel access unit of distributed elevator signal amplification system | |
| CN200990601Y (en) | Mobile communication system trunk amplification communication apparatus | |
| CN204836168U (en) | Miniature relay system of multimode multifrequency communications network | |
| CN103619028A (en) | RFID based TD-LTE signal-double flow indoor distribution monitoring system and method | |
| CN205566659U (en) | Ad hoc networks communication equipment | |
| CN201536367U (en) | Micro-power repeater | |
| CN206313774U (en) | High-power mobile 4G data links | |
| CN103220043B (en) | Conjunction road/shunt the mode of two-way WiFi signal mixed transport | |
| CN202269020U (en) | CATV (community antenna television) wireless signal distribution system using frequency conversion technology | |
| CN202514082U (en) | Miniature repeater | |
| CN202334520U (en) | Compensation equipment for mobile phone in weak field area | |
| CN112911694A (en) | Method for calculating uplink transmission open-loop power control of 5G repeater by using 4G field intensity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20140702 |
|
| EXPY | Termination of patent right or utility model |