CN205249149U - Airborne station power amplifier unit - Google Patents
Airborne station power amplifier unit Download PDFInfo
- Publication number
- CN205249149U CN205249149U CN201521044675.2U CN201521044675U CN205249149U CN 205249149 U CN205249149 U CN 205249149U CN 201521044675 U CN201521044675 U CN 201521044675U CN 205249149 U CN205249149 U CN 205249149U
- Authority
- CN
- China
- Prior art keywords
- unit
- amplifier
- switch
- predistortion
- power amplifier
- 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.)
- Active
Links
Landscapes
- Transmitters (AREA)
- Amplifiers (AREA)
Abstract
The utility model discloses an airborne station power amplifier unit, it relates to communication equipment technical field. Main emission power amplifier unit is by first order amplifier, the tertiary power amplifier of secondary amplification ware and final amplifier cascades step by step and forms, the embedding has 1 digital control attenuator between first order amplifier and the secondary amplification ware, the receiving and dispatching switch unit includes the transmit -receive switch, the amplitude limiting unit comprises the amplitude limiting switch, the switch filtering unit includes the wave filter, the low noise is put the unit and is included low -noise amplifier, predistortion feedback signal forms the unit and comprises coupling attenuation networking and predistortion change over switch, the final amplifier connects positive reverse coupling device in proper order, the transmit -receive switch, the amplitude limiting switch, the wave filter, low -noise amplifier, predistortion change over switch, the final amplifier connects the coupling attenuation networking, the coupling attenuation networking meets predistortion change over switch. The utility model discloses can fine control the range and the phase place of each way transmission signal, high efficiency, high integrated can realize self -protection, extensive applicability.
Description
Technical field
The utility model relates to communication equipment technical field, be specifically related to airborne station power amplifier unit.
Background technology
The extensive use of airborne station makes its requirement to power amplifier unit higher, along with sending out fast of wireless communication technologyExhibition, the performance of power amplifier unit, as broadband, high efficiency, high linearity, larger power output, the good bad influence of high-gain etc.Communication quality, can not meet the power level transmission requirement of remote data, picture system, and can not to airborne station eachThe amplitude that road transmits and phase place are carried out fine tuning, and for crossing the severe situation such as standing-wave ratio, antenna open circuit, power amplifier cannot be real simultaneouslyExisting self-protection function, based on this, designs a kind of novel airborne station power amplifier unit or necessary.
Utility model content
For the deficiency existing in prior art, the utility model object is to be to provide a kind of airborne station power amplifier listUnit, simple in structure, reasonable in design, amplitude and the phase place that can transmit to each road are carried out fine tuning, high efficiency, high integrated, energyRealize self-protection function, practical, applicability is wide.
To achieve these goals, the utility model is to realize by the following technical solutions: airborne station power amplifier listUnit, comprises main transmitting power amplifier unit, Transmit enable unit, amplitude limit unit, switch filtering unit, LNA unit and predistortionFeedback signal forming unit, main transmitting power amplifier unit is by first order amplifier, second level amplifier and three grades of merits of final amplifierRate amplifier step by step cascade forms, and Transmit enable unit comprises transmit-receive switch, and final amplifier connects forward and reverse coupling device, positive and negativeConnect transmit-receive switch to coupling device, the amplitude limit unit of telling is made up of amplitude limit switch, and switch filtering unit comprises wave filter, LNAUnit comprises low-noise amplifier, and predistortion feedback signal forming unit is by coupling attenuation networking and predistortion change-over switch groupBecome, transmit-receive switch, amplitude limit switch, wave filter, low-noise amplifier, predistortion change-over switch connect successively, and final amplifier connectsCoupling attenuation networking, coupling attenuation networking connects predistortion change-over switch.
As preferably, between described first order amplifier and second level amplifier, embed and be connected with 1 numerical-control attenuator,Forward and reverse coupling device connects forward and reverse detector arrangement, reverse detection output amplifier to 1 numerical-control attenuator, 1 figure place successivelyControlling attenuation device is realized in the power amplifier self-protection function of crossing in the severe situation such as standing-wave ratio, antenna open circuit.
As preferably, described airborne station power amplifier unit also comprises temp-sensing device, and temp-sensing device, predistortion are switched and openedPass, forward and reverse detector arrangement all connect baseband processing unit, and baseband processing unit connects transmit-receive switch, and transmit-receive switch is by antenna and frontPanel connects, and baseband processing unit is also connected to first order amplifier by PI attenuator.
The beneficial effects of the utility model: realize two-way modulation, and amplitude and the phase place that can transmit to each road are enteredRow fine tuning, can self-protection, and high efficiency, height is integrated, applicability is wide.
Brief description of the drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is system block diagram of the present utility model.
Detailed description of the invention
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, belowIn conjunction with detailed description of the invention, further set forth the utility model.
With reference to Fig. 1, this detailed description of the invention by the following technical solutions: airborne station power amplifier unit, comprises main transmitting meritPut unit, Transmit enable unit, amplitude limit unit, switch filtering unit, LNA unit and predistortion feedback signal and form listUnit, main transmitting power amplifier unit by first order amplifier 1, second level amplifier 2 and final amplifier 3 three stage power amplifiers step by stepCascade forms, and Transmit enable unit comprises transmit-receive switch 4, and final amplifier 3 connects forward and reverse coupling device 5, forward and reverse coupling dressPut 5 and connect transmit-receive switch 4, the amplitude limit unit of telling is made up of amplitude limit switch 6, and switch filtering unit comprises wave filter 7, LNA unitComprise low-noise amplifier 8, predistortion feedback signal forming unit is by 10 groups of coupling attenuation networking 9 and predistortion change-over switchesBecome, transmit-receive switch 4, amplitude limit switch 6, wave filter 7, low-noise amplifier 8, predistortion change-over switch 10 connect successively, and final stage is putLarge device 3 connects coupling attenuation networking 9, and coupling attenuation networking 9 connects predistortion change-over switch 10, power amplifier unit respectively with Base-Band Processing listUnit 15, front panel 17 connect.
It should be noted that described first order amplifier 1 connects second level amplifier 2 by numerical-control attenuator 11, positive and negativeConnect successively forward and reverse detector arrangement 12, reverse 13 to 1 numerical-control attenuators 11 of detection output amplifier to coupling device 5.
In addition, described airborne station power amplifier unit also comprises temp-sensing device 14, temp-sensing device 14, predistortion change-over switch10, forward and reverse detector arrangement 12 all connects baseband processing unit 15, and baseband processing unit 15 connects transmit-receive switch 4, and transmit-receive switch 4 passes throughAntenna is connected with front panel 17, and baseband processing unit 15 is also connected to first order amplifier 1 by PI attenuator 16.
The main transmitting power amplifier unit of this detailed description of the invention is realized the 0dBm left and right radiofrequency signal from base band is amplified to43dBm, meets the power level transmission requirement of remote data, picture system, and this main transmitting power amplifier amplifies in the first order simultaneouslyBetween device 1 and second level amplifier 2, embed 1 numerical-control attenuator 11, crossed the severe feelings such as standing-wave ratio, antenna open circuit to realizePower amplifier self-protection function under condition; Transmit enable unit is made up of powerful transmit-receive switch 4, is mainly used in realizing transmittingThe path of road and receiving branch forms, and possesses high-isolation, low insertion loss performance to meet receiving branch LNALimited amplitude protection and low-noise factor, meet the requirement of coefficient transmission performance; The effect of amplitude limit unit is in the time of transmitting, switch to be cutChange to load, for absorbing the leakage power of high-power transmit-receive switch, and protect low-noise amplifier 8 even not burnt by saturatedRuin; LNA unit is made up of low-noise factor, high 1dB compression point low-noise amplifier 8, in order to realize the faint letter receivingNumber pre-amplification function; The signal coupling of final stage power amplifier is gone out a part by predistortion feedback signal forming unit, and decay to AD letterNumber sampling power demand level, realizes the correction to the amplitude transmitting and phase place.
This detailed description of the invention by antenna reception to radiofrequency signal carry out filtering, the signal that filtering band is outer after disturbing is put againDeliver to greatly Base Band Unit and carry out digitized processing, transmit direction is the radiofrequency signal after Base Band Unit modulation to be carried out to linearity putGreatly, by the radiofrequency signal after amplifying by aerial radiation to space, this power amplifier unit adopts alternately single-shot, two receipts pattern, canRealize two-way modulation, and the amplitude that can transmit to each road and phase place carry out fine tuning, there is wide market application foreground.
More than show and described general principle of the present utility model and principal character and advantage of the present utility model. One's own professionThe technical staff of industry should understand, and the utility model is not restricted to the described embodiments, and in above-described embodiment and description, describesPrinciple of the present utility model is just described, do not departing under the prerequisite of the utility model spirit and scope, the utility model alsoHave various changes and modifications, these changes and improvements all fall within the scope of claimed the utility model. The utility modelClaimed scope is defined by appending claims and equivalent thereof.
Claims (3)
1. airborne station power amplifier unit, is characterized in that, comprises main transmitting power amplifier unit, Transmit enable unit, amplitude limit unit, opensClose filter unit, LNA unit and predistortion feedback signal forming unit, main transmitting power amplifier unit is by first order amplifier(1), second level amplifier (2) and final amplifier (3) three stage power amplifiers step by step cascade form, Transmit enable unit comprisesTransmit-receive switch (4), final amplifier (3) connects forward and reverse coupling device (5), and forward and reverse coupling device (5) connects transmit-receive switch (4),The amplitude limit unit of telling is made up of amplitude limit switch (6), and switch filtering unit comprises wave filter (7), and LNA unit comprises low noiseAmplifier (8), predistortion feedback signal forming unit is made up of coupling attenuation networking (9) and predistortion change-over switch (10), receivesSend out switch (4), amplitude limit switch (6), wave filter (7), low-noise amplifier (8), predistortion change-over switch (10) and connect successively, endLevel amplifier (3) connects coupling attenuation networking (9), and coupling attenuation networking (9) connect predistortion change-over switch (10).
2. airborne station power amplifier unit according to claim 1, is characterized in that, described first order amplifier (1) withBetween second level amplifier (2), embed and be connected with 1 numerical-control attenuator (11), forward and reverse coupling device (5) connects forward and reverse successivelyDetector arrangement (12), reverse detection output amplifier (13) are to 1 numerical-control attenuator (11).
3. airborne station power amplifier unit according to claim 1, is characterized in that, described airborne station power amplifier unit alsoComprise temp-sensing device (14), temp-sensing device (14), predistortion change-over switch (10), forward and reverse detector arrangement (12) all meet base band placeReason unit (15), baseband processing unit (15) connects transmit-receive switch (4), and transmit-receive switch (4) is connected with front panel (17) by antenna,Baseband processing unit (15) is also connected to first order amplifier (1) by PI attenuator (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521044675.2U CN205249149U (en) | 2015-12-15 | 2015-12-15 | Airborne station power amplifier unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521044675.2U CN205249149U (en) | 2015-12-15 | 2015-12-15 | Airborne station power amplifier unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205249149U true CN205249149U (en) | 2016-05-18 |
Family
ID=55948218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521044675.2U Active CN205249149U (en) | 2015-12-15 | 2015-12-15 | Airborne station power amplifier unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205249149U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092688A (en) * | 2018-01-02 | 2018-05-29 | 广州吉欧电子科技有限公司 | A kind of high-power data transmission transmitting-receiving radio station |
| CN110336624A (en) * | 2019-08-19 | 2019-10-15 | 中兵通信科技股份有限公司 | A kind of configurable digital power correction device in wide frequency communication radio station |
-
2015
- 2015-12-15 CN CN201521044675.2U patent/CN205249149U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092688A (en) * | 2018-01-02 | 2018-05-29 | 广州吉欧电子科技有限公司 | A kind of high-power data transmission transmitting-receiving radio station |
| CN110336624A (en) * | 2019-08-19 | 2019-10-15 | 中兵通信科技股份有限公司 | A kind of configurable digital power correction device in wide frequency communication radio station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105610453B (en) | A kind of high-gain narrow radio frequency receiver | |
| CN203632660U (en) | Radiofrequency front circuit and system | |
| CN103546189B (en) | Radio-frequency (RF) front-end circuit and system | |
| CN106848608A (en) | The forming integrated antenna array of broadband mixed-beam | |
| CN104333334A (en) | Broadband and low-noise radio frequency amplifier of satellite navigation aviation enhancing system and transmission device | |
| CN103259551A (en) | Radio-frequency signal receiving device based on automatic dependent surveillance-broadcast (ADS-B) | |
| CN205249149U (en) | Airborne station power amplifier unit | |
| CN103068029B (en) | Repeater (RPT) receiver device capable of effectively confronting signal rapid fading and large-signal blocking | |
| CN100502490C (en) | Ground digital television repeater | |
| CN203086744U (en) | A repeater station receiver device capable of effectively withstanding signal rapid fading and large signal barrage jamming | |
| CN106936394A (en) | Distortion low-noise amplifier after Larger Dynamic | |
| CN106452471A (en) | GSM radio frequency circuit and terminal comprising circuit | |
| CN201018504Y (en) | Ground digital television repeater | |
| CN2798424Y (en) | Intelligent radio frequency optical transmission module with integrated power amplifying and low noise amplifying | |
| CN206283488U (en) | Broadband reception front end assemblies | |
| CN104518818A (en) | Wireless system multiband transceiver | |
| CN207623509U (en) | Radar receiver under a kind of L-band fixed ampllitude | |
| CN110011720A (en) | A kind of day leads to linear link amplifier in ground satellite station room | |
| CN101640546B (en) | RFID reader receiving analog baseband circuit | |
| CN101917220B (en) | Repeater for eliminating near-far effect | |
| CN210246725U (en) | C-band receiving channel assembly | |
| CN209233794U (en) | A kind of low-power consumption low-noise amplifier | |
| CN209283218U (en) | Automatic growth control zero intermediate frequency reciver | |
| CN209964054U (en) | Indoor linear relay amplifier of earth station of heaven-earth satellite | |
| CN202269020U (en) | CATV (community antenna television) wireless signal distribution system using frequency conversion technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |