CN207198236U - A kind of test device based on directional coupler test power amplifier power output with ACPR values - Google Patents
A kind of test device based on directional coupler test power amplifier power output with ACPR values Download PDFInfo
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- CN207198236U CN207198236U CN201721147051.2U CN201721147051U CN207198236U CN 207198236 U CN207198236 U CN 207198236U CN 201721147051 U CN201721147051 U CN 201721147051U CN 207198236 U CN207198236 U CN 207198236U
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- directional coupler
- power amplifier
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Abstract
The utility model discloses a kind of test device based on directional coupler test power amplifier power output with ACPR values, it includes signal source, power amplifier, directional coupler, attenuator, frequency spectrograph, power meter, high-low temperature test chamber, the signal source output terminal is connected with power amplifier and high-low temperature test chamber input, the output end of the power amplifier and high-low temperature test chamber is connected with directional coupler input, the directional coupler output end is connected with attenuator input, the attenuator output end is connected with frequency spectrograph input, the directional coupler coupled end is connected with power meter input；ACPR values test when this practicality is newly applied to power amplifier power output 40dBm, can and meanwhile measured power and ACPR values, be advantageous to the real-time monitoring of power amplifier, more intuitively see power and variation tendency of the ACPR values under high and low temperature environment.
Description
Technical field
The utility model is related to the communications field, and in particular to one kind based on directional coupler test power amplifier power output with
The test device of ACPR values.
Background technology
The power output of power amplifier and two kinds of important indicators that ACPR values are power amplifiers, wherein power embody power amplifier power supply energy
The ability of microwave energy is changed, ACPR values mainly measure the work(leaked to due to amplifier nonlinearity in adjacent communication channel
How much is rate.Power and ACPR values are separated test by traditional method of testing, are so unfavorable for the real-time monitoring of power amplifier, can not be more straight
That sees sees power and variation tendency of the ACPR values under high and low temperature environment.
Utility model content
The purpose of this utility model is to provide a kind of survey based on directional coupler test power amplifier power output with ACPR values
Trial assembly is put, it can measured power and ACPR values simultaneously, be so advantageous to the real-time monitoring of power amplifier, more intuitively see power and
Variation tendency of the ACPR values under high and low temperature environment.
In order to solve the problems existing in background technology, the utility model is to use following technical scheme：One kind is based on fixed
To coupler test power amplifier power output and the test device of ACPR values, it includes signal source, power amplifier, directional coupler, decay
Device, frequency spectrograph, power meter, high-low temperature test chamber, the signal source output terminal are connected with power amplifier and high-low temperature test chamber input,
The output end of the power amplifier and high-low temperature test chamber is connected with directional coupler input, and the directional coupler output end is with declining
Subtract device input to be connected, the attenuator output end is connected with frequency spectrograph input, the directional coupler coupled end and power
Meter input is connected.
As further improvement of the utility model, the signal source output is qpsk modulation signal.
As further improvement of the utility model, the power output 40dBm of the power amplifier.
As further improvement of the utility model, the degree of coupling of the directional coupler is 40dB.
As further improvement of the utility model, the pad value of the attenuator is 40dB.
As further improvement of the utility model, -70 DEG C of the range of temperature -40 DEG C of the high-low temperature test chamber.
As further improvement of the utility model, the model Agilent E4404B of the frequency spectrograph.
As further improvement of the utility model, the model hp 437B of the power meter.
After adopting the above technical scheme, the utility model has the advantages that：One kind is tested based on directional coupler
The test device of power amplifier power output and ACPR values, it is applied to ACPR values test during power amplifier power output 40dBm, Ke Yitong
When measured power and ACPR values, be advantageous to the real-time monitoring of power amplifier, more intuitively see power and ACPR values in high and low temperature environment
Under variation tendency.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Reference：
1- signal sources, 2- power amplifiers, 3- directional couplers, 4- attenuators, 5- frequency spectrographs, 6- power meters, 7- thermocyclings
Case.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and specifically
Embodiment, the utility model is further elaborated.It should be appreciated that embodiment described herein is only used
To explain the utility model, it is not used to limit the utility model.
Referring to Fig. 1, present embodiment uses following technical scheme：One kind is defeated based on directional coupler test power amplifier
Go out the test device of power and ACPR values, it includes signal source 1, power amplifier 2, directional coupler 3, attenuator 4, frequency spectrograph 5, power
Meter 6, high-low temperature test chamber 7, the output end of signal source 1 are connected with power amplifier 2 and the input of high-low temperature test chamber 7, power amplifier 2 and high/low temperature
The output end of chamber 7 is connected with the input of directional coupler 3, and the output end of directional coupler 3 is connected with the input of attenuator 4,
The output end of attenuator 4 is connected with the input of frequency spectrograph 5, and the coupled end of directional coupler 3 is connected with the input of power meter 6, signal source 1
Output is qpsk modulation signal, and the power output 40dBm of power amplifier 2, the degree of coupling of directional coupler 3 is 40dB, attenuator 4
Pad value is 40dB, -70 DEG C of the range of temperature -40 DEG C of high-low temperature test chamber 7, the model Agilent of frequency spectrograph 5
E4404B, the model hp 437B of power meter 6.
ACPR values test when the utility model is applied to power amplifier power output 40dBm, can simultaneously measured power with
ACPR values, be advantageous to the real-time monitoring of power amplifier, more intuitively see power and variation tendency of the ACPR values under high and low temperature environment.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (8)
- A kind of 1. test device based on directional coupler test power amplifier power output with ACPR values, it is characterised in that：It includes Signal source (1), power amplifier (2), directional coupler (3), attenuator (4), frequency spectrograph (5), power meter (6), high-low temperature test chamber (7), signal source (1) output end is connected with power amplifier (2) and high-low temperature test chamber (7) input, the power amplifier (2) and height The output end of temperature test box (7) is connected with directional coupler (3) input, directional coupler (3) output end and attenuator (4) input is connected, and attenuator (4) output end is connected with frequency spectrograph (5) input, directional coupler (3) coupling End is connected with power meter (6) input.
- 2. a kind of test based on directional coupler test power amplifier power output and ACPR values according to claim 1 fills Put, it is characterised in that signal source (1) output is qpsk modulation signal.
- 3. a kind of test based on directional coupler test power amplifier power output and ACPR values according to claim 1 fills Put, it is characterised in that the power output 40dBm of the power amplifier (2).
- 4. a kind of test based on directional coupler test power amplifier power output and ACPR values according to claim 1 fills Put, it is characterised in that the degree of coupling of the directional coupler (3) is 40dB.
- 5. a kind of test based on directional coupler test power amplifier power output and ACPR values according to claim 1 fills Put, it is characterised in that the pad value of the attenuator (4) is 40dB.
- 6. a kind of test based on directional coupler test power amplifier power output and ACPR values according to claim 1 fills Put, it is characterised in that -70 DEG C of the range of temperature -40 DEG C of the high-low temperature test chamber (7).
- 7. a kind of test based on directional coupler test power amplifier power output and ACPR values according to claim 1 fills Put, it is characterised in that the model Agilent E4404B of the frequency spectrograph (5).
- 8. a kind of test based on directional coupler test power amplifier power output and ACPR values according to claim 1 fills Put, it is characterised in that the model hp 437B of the power meter (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721147051.2U CN207198236U (en) | 2017-09-08 | 2017-09-08 | A kind of test device based on directional coupler test power amplifier power output with ACPR values |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721147051.2U CN207198236U (en) | 2017-09-08 | 2017-09-08 | A kind of test device based on directional coupler test power amplifier power output with ACPR values |
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| Publication Number | Publication Date |
|---|---|
| CN207198236U true CN207198236U (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721147051.2U Active CN207198236U (en) | 2017-09-08 | 2017-09-08 | A kind of test device based on directional coupler test power amplifier power output with ACPR values |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210874A1 (en) * | 2018-05-04 | 2019-11-07 | Huawei Technologies Co., Ltd. | Transmitter linearity built-in-self-test |
| CN113064049A (en) * | 2021-03-17 | 2021-07-02 | 深圳市时代速信科技有限公司 | Radio frequency power amplifier chip test system |
-
2017
- 2017-09-08 CN CN201721147051.2U patent/CN207198236U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210874A1 (en) * | 2018-05-04 | 2019-11-07 | Huawei Technologies Co., Ltd. | Transmitter linearity built-in-self-test |
| US10476549B1 (en) | 2018-05-04 | 2019-11-12 | Futurewei Technologies, Inc. | Transmitter linearity built-in-self-test |
| CN113064049A (en) * | 2021-03-17 | 2021-07-02 | 深圳市时代速信科技有限公司 | Radio frequency power amplifier chip test system |
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