CN203275508U - Power capability testing device and power amplifier unit - Google Patents

Power capability testing device and power amplifier unit Download PDF

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Publication number
CN203275508U
CN203275508U CN 201320067685 CN201320067685U CN203275508U CN 203275508 U CN203275508 U CN 203275508U CN 201320067685 CN201320067685 CN 201320067685 CN 201320067685 U CN201320067685 U CN 201320067685U CN 203275508 U CN203275508 U CN 203275508U
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CN
China
Prior art keywords
power
amplifier unit
power amplifier
mcu
unit
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Expired - Fee Related
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CN 201320067685
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Chinese (zh)
Inventor
李合理
张磊
李远生
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Comba Network Systems Co Ltd
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Comba Telecom Systems China Ltd
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Priority to CN 201320067685 priority Critical patent/CN203275508U/en
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Publication of CN203275508U publication Critical patent/CN203275508U/en
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Abstract

The utility model discloses a power amplifier unit and a power capability testing device including the power amplifier units. The device includes a multichannel RF (radio frequency) switch, a host MCU and a plurality of amplifier units. Each amplifier unit corresponds to a working band of a device to-be-tested, and is connected between the multichannel RF switch and the device to-be-tested. The host MCU controls the multichannel RF switch based on a band to-be-tested to connect the amplifier unit corresponding to the band to-be-tested. A signal of a signal source enters the amplifier unit through the multichannel RF switch. The power of the signal is amplified to power to-be-tested successively by a microstrip power divider, an amplitude phase modulator, a push-level unit, a multichannel final amplifier, an air microstrip combiner and an isolator of the amplifier unit, and then output to the device to-be-tested, accordingly the power capability of the device to-be-tested is determined according to the operating state thereof. A high-efficiency, high-integrated, wide-applicable test platform is provided for reliability testing and evaluation of duplexers, combiners, delayed filters and isolators.

Description

Power capacity proving installation and power amplifier unit
Technical field
The utility model relates to the power amplifier technology field, particularly relates to a kind of power capacity proving installation and power amplifier unit
Background technology
In recent years, the construction of 3G mobile radio networks and 2G network are still constantly optimized, and high-power dilatation is carried out in base station and repeater thereupon, and the power capacity of the Primary Components such as diplexer, filtering wave by prolonging time device, combiner, isolator improves constantly.Power capacity is the bottleneck of communication products reliability, also becomes the critical index of necessary testing evaluation.Yet, not yet have at present methodology or equipment effectively to test power capacity.
The utility model content
Based on above-mentioned situation, the utility model proposes a kind of power capacity proving installation and power amplifier unit, test with the power capacity to power device.
A kind of power capacity proving installation comprises multi-channel rf switch, main frame MCU and at least one power amplifier unit, a working frequency range of the corresponding device under test of each described power amplifier unit, and be connected on respectively between described multi-channel rf switch and described device under test;
Described power amplifier unit comprises connected successively microstrip power divider, amplitude modulation and phase modulation device, promotes a grade unit, multichannel output amplifier, air microstrip combiner and isolator, and MCU, described microstrip power divider connects signal source by described multi-channel rf switch, described isolator connects described device under test, and described MCU is connected with described main frame MCU;
described main frame MCU sends the break-make instruction according to the configuration information that receives to described multi-channel rf switch, make the power amplifier unit conducting corresponding with the frequency range to be measured of described device under test, other power amplifier unit cut-offs, described main frame MCU also sends control information to described MCU according to the configuration information that receives, described MCU is according to the control information that receives, respectively to described amplitude modulation and phase modulation device, promote level unit and multichannel output amplifier and send corresponding steering order, make the signal of described signal source after described isolator output, power is amplified to the power scale for the treatment of of described device under test.
A kind of power amplifier unit, comprise connected successively microstrip power divider, amplitude modulation and phase modulation device, promote a grade unit, multichannel output amplifier, air microstrip combiner and isolator, and MCU, signal source is inputted from described microstrip power divider, from described isolator output, described MCU is according to the control information that receives, send corresponding steering order to described amplitude modulation and phase modulation device, promotion level unit and multichannel output amplifier respectively, make the signal of described signal source after described isolator output, power is amplified to predetermined power.
the utility model power capacity proving installation, comprise the multi-channel rf switch, main frame MCU and a plurality of power amplifier unit, a working frequency range of the corresponding device under test of each power amplifier unit, and be connected between multi-channel rf switch and device under test, main frame MCU controls the break-make of multi-channel rf switch according to frequency range to be measured, make the power amplifier unit conducting corresponding with frequency range to be measured, the signal of signal source enters power amplifier unit through the multi-channel rf switch, successively through the microstrip power divider of power amplifier unit, the amplitude modulation and phase modulation device, promote a grade unit, the multichannel output amplifier, after air microstrip combiner and isolator, power is amplified to be treated power scale and exports device under test to, thereby judge its power capacity according to the duty of device under test, for fail-test and the assessment of power device provides a kind of high-level efficiency, high integrated, the test platform that applicability is wide.Power amplifier unit of the present utility model is the power amplifier unit in above-mentioned power capacity proving installation.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model power capacity proving installation;
Fig. 2 is the structural representation of power amplifier unit in the utility model power capacity proving installation;
Fig. 3 is the structural representation of another embodiment of the utility model power capacity proving installation.
Embodiment
In order to satisfy communications industry device producer to urgent assessment testing requirements of Primary Component power capacity such as diplexer, filtering wave by prolonging time device, combiner, isolators, the utility model has adopted the multiple technologies such as air cavity combiner, amplitude modulation and phase modulation device, monitoring software temperature compensation, master-slave communication, multi-channel rf switch, carry out design of system integration, realize the purpose to the test of device under test multiband power capacity.Explain in detail the utility model below in conjunction with accompanying drawing.
The utility model power capacity proving installation as shown in Figure 1, comprises multi-channel rf switch, main frame MCU and at least one power amplifier unit.The working frequency range number of the number of power amplifier unit and device under test adapts, a working frequency range of the corresponding device under test of each power amplifier unit, and be connected on respectively between described multi-channel rf switch and described device under test, the multi-channel rf switch connects signal source again.
Described power amplifier unit, as shown in Figure 2, it comprises connected successively microstrip power divider, amplitude modulation and phase modulation device, promotes a grade unit, multichannel output amplifier, air microstrip combiner and isolator, and MCU, described microstrip power divider connects signal source by described multi-channel rf switch, described isolator connects described device under test, and described MCU is connected with described main frame MCU.
Device under test can be diplexer, combiner, filtering wave by prolonging time device, isolator etc., the working frequency range of these devices is distributed between 700MHz-2100MHz, therefore, as a preferred embodiment, the number of above-mentioned power amplifier unit can be following 6, is followed successively by: 700MHz power amplifier unit, 800MHz power amplifier unit, 900MHz power amplifier unit, 1800MHz power amplifier unit, 1900MHz power amplifier unit, 2100MHz power amplifier unit.In addition, if device under test is diplexer, diplexer is placed in pneumatic pressure tank.
As a preferred embodiment, described power amplifier unit also comprises detection tube, and described detection tube one end is connected between described air microstrip combiner and described isolator, and a described MCU of termination is sent to described main frame MCU with rectified signal by described MCU.
As a preferred embodiment, as shown in Figure 3, this proving installation also comprises control panel, pilot lamp and AC-DC power supply.Wherein, control panel is connected with main frame MCU, is used to provide human-computer interaction interface, and pilot lamp also is connected with main frame MCU, and whether pilot lamp is used to refer to this proving installation and works, and the AC-DC power supply is used for being each power amplifier unit power supply.
In addition, power amplifier unit also comprises detection tube, is used for the signal between air microstrip combiner and isolator is carried out detection.
This proving installation carries out design of system integration with the power amplifier unit of a plurality of frequency ranges, each power amplifier unit has realized that based on amplitude modulation and phase modulation technology and the high-power synthetic technology of air microstrip carrying out many power after the multiple signals of constant amplitude homophase amplify synthesizes, and obtains a kind of powerful radiofrequency signal.Particularly, microstrip power divider is divided into the signal one of signal source many, preferably is divided into two, two paths of signals amplitude and the phase place of this moment there are differences, be unfavorable for carrying out power amplification, the amplitude modulation and phase modulation device carries out the modulation of amplitude and phase place, makes two paths of signals constant amplitude homophase.Promote a grade unit and comprise polystage amplifier, be used for two paths of signals is carried out respectively power amplification, the multichannel output amplifier further amplifies two paths of signals, the multichannel output amplifier with promote the level unit and divide that to be arranged be for avoiding influencing each other and being convenient to the consideration of failure replacement.The air microstrip combiner synthesizes one road signal with two paths of signals, and is different from common combiner, has that Insertion Loss is little, power is large and the characteristics of perfect heat-dissipating.Isolator is used for the impact of isolation device under test signal.Wherein the temperature compensation data of amplitude modulation and phase modulation parameter, promotion level unit and multichannel output amplifier are arranged by MCU.In addition, this proving installation can be according to the new frequency range of needs exploitation of device under test, and for this reason, power amplifier unit can adopt the plug-in access way, so that expansion and switching.Described MCU can also carry out overpower protection to affiliated power amplifier unit.
The course of work of this proving installation is as follows: the user arranges the frequency range to be measured of current device under test and treats power scale on main frame MCU by control panel, and the temperature compensation data of the amplitude modulation and phase modulation parameter of radiofrequency signal, promotion level unit and multichannel output amplifier.Main frame MCU sends the break-make instruction according to these configuration informations to described multi-channel rf switch, make the power amplifier unit conducting corresponding with the frequency range to be measured of described device under test, other power amplifier unit cut-offs, also send control information to described MCU according to configuration information, described MCU is according to the control information that receives, send corresponding steering order to described amplitude modulation and phase modulation device, promotion level unit and multichannel output amplifier respectively, make the signal of described signal source after described isolator output, power is amplified to the power scale for the treatment of of described device under test.Whether device under test is operated in frequency range to be measured, and the radiofrequency signal for the treatment of measured frequency processes, assess device under test according to standards such as whether index weaken and can bear and treat measured frequency, finally draws the power capacity of device under test.
Power amplifier unit of the present utility model has same technical characterictic with power amplifier unit in above-mentioned power capacity proving installation.As shown in Figure 2, it comprises successively the microstrip power divider, the amplitude modulation and phase modulation device that are connected, promote a level unit, multichannel output amplifier, air microstrip combiner and isolator, and respectively with described amplitude modulation and phase modulation device, promote the MCU that the level unit is connected with the multichannel output amplifier.Signal source is inputted from described microstrip power divider, from described isolator output.This power amplifier unit can be amplified to predetermined power with signal source, the user can arrange control information by described MCU, described MCU is according to the control information that receives, respectively to described amplitude modulation and phase modulation device, promote level unit and multichannel output amplifier and send the trip temperature compensation of going forward side by side of corresponding steering order, make the signal of described signal source after described isolator output, power is amplified to predetermined power.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims (7)

1. power capacity proving installation, it is characterized in that, comprise multi-channel rf switch, main frame MCU and at least one power amplifier unit, a working frequency range of the corresponding device under test of each described power amplifier unit, and be connected on respectively between described multi-channel rf switch and described device under test;
Described power amplifier unit comprises connected successively microstrip power divider, amplitude modulation and phase modulation device, promotes a grade unit, multichannel output amplifier, air microstrip combiner and isolator, and MCU, described microstrip power divider connects signal source by described multi-channel rf switch, described isolator connects described device under test, and described MCU is connected with described main frame MCU;
described main frame MCU sends the break-make instruction according to the configuration information that receives to described multi-channel rf switch, make the power amplifier unit conducting corresponding with the frequency range to be measured of described device under test, other power amplifier unit cut-offs, described main frame MCU also sends control information to described MCU according to the configuration information that receives, described MCU is according to the control information that receives, respectively to described amplitude modulation and phase modulation device, promote level unit and multichannel output amplifier and send corresponding steering order, make the signal of described signal source after described isolator output, power is amplified to the power scale for the treatment of of described device under test.
2. power capacity proving installation according to claim 1, it is characterized in that, the frequency range to be measured of described device under test comprises 700MHz, 800MHz, 900MHz, 1800MHz, 1900MHz and 2100MHz, and corresponding described power amplifier unit comprises 700MHz power amplifier unit, 800MHz power amplifier unit, 900MHz power amplifier unit, 1800MHz power amplifier unit, 1900MHz power amplifier unit and 2100MHz power amplifier unit.
3. power capacity proving installation according to claim 1 and 2, it is characterized in that, described power amplifier unit also comprises detection tube, described detection tube one end is connected between described air microstrip combiner and described isolator, the one described MCU of termination is sent to described main frame MCU with rectified signal by described MCU.
4. power capacity proving installation according to claim 1 and 2, is characterized in that, also comprise provide human-computer interaction interface with described main frame MCU is arranged control panel.
5. power capacity proving installation according to claim 1 and 2, is characterized in that, also comprises the pilot lamp of indicating this proving installation duty according to the information of described main frame MCU.
6. power capacity proving installation according to claim 1 and 2, is characterized in that, also is included as the AC-DC power supply of each described power amplifier unit power supply.
7. power amplifier unit, it is characterized in that, comprise connected successively microstrip power divider, amplitude modulation and phase modulation device, promote a grade unit, multichannel output amplifier, air microstrip combiner and isolator, and MCU, signal source is inputted from described microstrip power divider, from described isolator output, described MCU is according to the control information that receives, send corresponding steering order to described amplitude modulation and phase modulation device, promotion level unit and multichannel output amplifier respectively, make the signal of described signal source after described isolator output, power is amplified to predetermined power.
CN 201320067685 2013-02-05 2013-02-05 Power capability testing device and power amplifier unit Expired - Fee Related CN203275508U (en)

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Application Number Priority Date Filing Date Title
CN 201320067685 CN203275508U (en) 2013-02-05 2013-02-05 Power capability testing device and power amplifier unit

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Application Number Priority Date Filing Date Title
CN 201320067685 CN203275508U (en) 2013-02-05 2013-02-05 Power capability testing device and power amplifier unit

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106921375A (en) * 2017-03-03 2017-07-04 成都中宇微芯科技有限公司 A kind of switching regulator amplifies work(point, combiner circuit
CN108761234A (en) * 2018-05-24 2018-11-06 上海市计量测试技术研究院 Multichannel power amplifier
CN109495077A (en) * 2018-11-08 2019-03-19 苏州全波通信技术股份有限公司 Adaptive digital amplitude modulation and phase modulation system
CN112234332A (en) * 2020-10-15 2021-01-15 上海三吉电子工程有限公司 Radio frequency combiner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106921375A (en) * 2017-03-03 2017-07-04 成都中宇微芯科技有限公司 A kind of switching regulator amplifies work(point, combiner circuit
CN108761234A (en) * 2018-05-24 2018-11-06 上海市计量测试技术研究院 Multichannel power amplifier
CN109495077A (en) * 2018-11-08 2019-03-19 苏州全波通信技术股份有限公司 Adaptive digital amplitude modulation and phase modulation system
CN112234332A (en) * 2020-10-15 2021-01-15 上海三吉电子工程有限公司 Radio frequency combiner

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20131106

Termination date: 20160205