CN110247634A - A kind of broadband high precision apparatus output level band slope temperature compensation method and system - Google Patents
A kind of broadband high precision apparatus output level band slope temperature compensation method and system Download PDFInfo
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- CN110247634A CN110247634A CN201910546645.8A CN201910546645A CN110247634A CN 110247634 A CN110247634 A CN 110247634A CN 201910546645 A CN201910546645 A CN 201910546645A CN 110247634 A CN110247634 A CN 110247634A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High frequency amplifiers, e.g. radio frequency amplifiers
Abstract
The invention discloses a kind of broadband high precision apparatus output level in technique for temperature compensation field band slope temperature compensation method and system, method and step includes: 1, under calibration temperature, obtains the target voltage values of each pad value of equipment；2, real-time temperature values are obtained, and from the preset table, finds the warm variable coefficient of the corresponding decaying of real time temperature and balanced warm variable coefficient；3, target voltage values, warm variable coefficient of decaying, temperature value, balanced warm variable coefficient are substituted into formula respectively, decaying configuration voltage value is calculated and equilibrium allocation voltage value is compensated for device temperature.System includes: voltage-controlled balanced device, voltage-controlled attenuator, D/A converter module, data processor and temperature sensor.In such a way that voltage-controlled attenuator and voltage-controlled balanced device combine, and in conjunction with corresponding backoff algorithm realize it is high-precision in entire band limits with the temperature-compensating of slope, compensation process does not jump continuously, limits without thresholding, and gain adjustment stepping is less than 0.05dB.
Description
Technical field
The present invention relates to technique for temperature compensation field, in particular to a kind of broadband high precision apparatus output level band slope temperature
Spend compensation method and system.
Background technique
In existing RF transmission system and radio frequency multiplying arrangement, single broadband device output level with temperature wave
It moves and changes, when range of temperature is larger, such as -40 DEG C~85 DEG C, will cause output level changes greatly, and stability is not
Enough height, after equipment cascading, due to the influence of temperature, network radio frequency index can generate biggish deviation, secondly, due in equipment
Component it is different to the temperature characterisitic of different frequency, equipment causes output voltage gradient to vary with temperature without slope-compensation function
And change, although can accurately be compensated temperature using numerical control attenuation, there are compensation process is discontinuous, output level has
Jump may cause business packet loss.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency in the presence of the prior art, a kind of broadband high precision apparatus is provided
Output level band slope temperature compensation method and system.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical schemes:
A kind of broadband high precision apparatus output level band slope temperature compensation method, which is characterized in that step includes:
S1 obtains the target voltage values of each pad value of equipment under calibration temperature；
S2 obtains real-time temperature values, finds that real-time temperature values are corresponding to decline from preset temperature-attenuation compensation table
Subtract offset, the warm variable coefficient of the corresponding decaying of attenuation compensation value is found from preset decaying-temperature variable coefficient table；
S3 finds the corresponding isostatic compensation value of real-time temperature values from preset temperature-isostatic compensation table, from default
Decaying-temperature variable coefficient table in find the corresponding balanced warm variable coefficient of isostatic compensation value；
S4 brings target voltage values, decay warm variable coefficient, real-time temperature values into decaying allocation formula, calculates real-time temperature
Decaying under angle value configures voltage value；
S5 brings target voltage values, balanced warm variable coefficient, real-time temperature values into equilibrium allocation formula, calculates real-time temperature
Equilibrium allocation voltage value under angle value；
Decaying configuration voltage value and equilibrium allocation voltage value are used for device temperature compensation by S6.
Preset decaying-temperature variable coefficient table obtaining step includes:
It is corresponding to measure voltage-controlled decaying chip each pad value in low-temperature values, room temperature value and high temperature values using 1dB as stepping by S11
Voltage value；
S12, according to voltage change slope calculation formula, calculates the corresponding decaying temperature of each pad value and becomes using 1dB as stepping
Coefficient；
S13, when each pad value, room temperature value the corresponding voltage value of each pad value and warm variable coefficient of decaying constitute preset decline
Subtract-temperature variable coefficient table.
Preset temperature-attenuation compensation table obtaining step includes:
S21 tests out the yield value of equipment when voltage-controlled decaying chip attenuation compensation value is zero, and temperature is room temperature value
A0；
S22, at interval of the yield value A of+10 DEG C of (or -10 DEG C) test equipments in temperature compensation temperature rangek, k=25 ±
10n, wherein n=1,2,3,4 ..., n are positive integer；
S23, by yield value AkWith yield value A0It makes the difference, calculates the attenuation compensation value at interval of 10 DEG C, constitute preset temperature
Degree-attenuation compensation table.
Preset temperature-isostatic compensation table obtaining step includes:
S31 tests out the equilibrium value of equipment when voltage-controlled decaying chip attenuation compensation value is zero, and temperature is room temperature value
B0；
S32, at interval of the equilibrium value B of+10 DEG C of (or -10 DEG C) test equipments in temperature compensation temperature rangej, j=25 ±
10n, wherein n=1,2,3,4 ..., n are positive integer.
S33, by equilibrium value BjWith equilibrium value B0It makes the difference, calculates the isostatic compensation value at interval of 10 DEG C, constitute preset temperature
Degree-isostatic compensation table.
Decay allocation formula are as follows:
Vc [T1] _ att=VC1+K1* (T1-T0)
Wherein, vc [T1] _ att is decaying configuration voltage value, and VC1 is target voltage values, and K1 is that decay warm variable coefficient, T1 is
The temperature value of acquisition, T0 are calibration temperatures.
Equilibrium allocation formula are as follows:
Vd [T1] _ att=Vd1+K2* (T1-T0)
Wherein, vd [T1] _ att is equilibrium allocation voltage value, and Vd1 is target voltage values, and K2 is that balanced warm variable coefficient, T1 are
Real-time temperature value, T0 are calibration temperatures.
Based on the same inventive concept, the invention also provides a kind of broadband high precision apparatus output level band slope temperatures to mend
Repay system, including voltage-controlled balanced device, voltage-controlled attenuator, D/A converter module, data processor and temperature sensor, wherein
Temperature sensor is for obtaining calibration temperature and real-time temperature value；
Data processor stores preset temperature-attenuation compensation table, decaying-temperature variable coefficient table and preset temperature-
Isostatic compensation table, and obtain calibration temperature and real-time temperature value from temperature sensor, according to real-time temperature value, from default
Temperature-attenuation compensation table in find the corresponding attenuation compensation value of temperature value, looked into from preset decaying-temperature variable coefficient table
The warm variable coefficient of the corresponding decaying of attenuation compensation value is found, it is corresponding to find temperature value from preset temperature-isostatic compensation table
Isostatic compensation value, finds the corresponding balanced warm variable coefficient of isostatic compensation value from preset decaying-temperature variable coefficient table, and according to
Target voltage values, decay warm variable coefficient, temperature value calculate the configuration voltage value of the decaying under temperature value, according to target voltage values,
Balanced temperature variable coefficient, temperature value calculate the equilibrium allocation voltage value under temperature value, and output attenuatoin configuration voltage value and equilibrium are matched
Voltage value is set to D/A converter module；
D/A converter module respectively by the decaying obtained from data processor configure voltage value and equilibrium allocation voltage value into
Row digital-to-analogue conversion, and the decaying configuration voltage value after conversion is output to voltage-controlled attenuator, by the equilibrium allocation voltage after conversion
Value is output to voltage-controlled balanced device；
Voltage-controlled balanced device and voltage-controlled attenuator are connected in the radio circuit of radio-frequency apparatus, after voltage-controlled attenuator is according to conversion
Decaying configure voltage value, decay to radiofrequency signal, voltage-controlled balanced device according to conversion after equilibrium allocation voltage value pair
Radiofrequency signal carries out balanced.
Further, downlink radio-frequency signal is input to the voltage-controlled attenuator being connected in down going channel circuit, downlink radio frequency
Signal is input to voltage-controlled balanced device after the temperature-compensating by voltage-controlled attenuator and carries out signal equalization, and voltage-controlled balanced device exports again
Downlink radio-frequency signal after equilibrium is to next stage circuit；
Upstream radio-frequency signal is input to the voltage-controlled attenuator being connected in data feedback channel circuit, and upstream radio-frequency signal is passing through
It is input to voltage-controlled balanced device after the temperature-compensating of voltage-controlled attenuator and carries out signal equalization, voltage-controlled balanced device exports after equilibrium again
Upstream radio-frequency signal to next stage circuit.
It is above-mentioned using a kind of broadband high precision apparatus output level band slope temperature compensation the invention also provides containing
Radio communication component, radio frequency communication devices, the RF communication system of the circuit of method.
The invention also provides contain high precision apparatus output level band slope temperature in any broadband in above scheme
Spend radio communication component, radio frequency communication devices, the RF communication system of compensation system.
Compared with prior art, beneficial effects of the present invention:
1, in such a way that voltage-controlled attenuator and voltage-controlled balanced device combine, and it is high-precision to combine corresponding backoff algorithm to realize
The temperature-compensating of degree.
2, in addition to compensating one-segment level, the compensation scheme with slope is designed also directed to entire band limits.
3, Continuous Compensation is realized, compensation process does not jump continuously, limits without thresholding, and gain adjustment stepping is less than
0.05dB。
Detailed description of the invention
Fig. 1 is a kind of broadband high precision apparatus output level band slope temperature compensation method flow chart in embodiment 1；
Fig. 2 is attenuation-voltage value curve graph in embodiment 1；
Fig. 3 is a kind of down going channel temperature compensation principle figure in embodiment 1；
Fig. 4 is a kind of data feedback channel temperature compensation principle figure in embodiment 1.
Specific embodiment
Below with reference to test example and specific embodiment, the present invention is described in further detail.But this should not be understood
It is all that this is belonged to based on the technology that the content of present invention is realized for the scope of the above subject matter of the present invention is limited to the following embodiments
The range of invention.
Embodiment 1
A kind of broadband high precision apparatus output level band slope temperature compensation method flow chart is as shown in Figure 1, step includes:
S1 obtains the target voltage values of each pad value of radio-frequency apparatus under calibration temperature.
Generally, T is set by calibration temperature0=25 DEG C (being also possible to other temperature values), using 1dB as stepping, test
The target voltage values of each pad value out form table table_attvsvc_T0。
S2 obtains temperature value, and the corresponding decaying of the temperature value is found from preset temperature-attenuation compensation table and is mended
Value is repaid, the warm variable coefficient of the corresponding decaying of the attenuation compensation value is found from preset decaying-temperature variable coefficient table.
Wherein, preset decaying-temperature variable coefficient table obtaining step are as follows:
S11, using 1dB as stepping, each pad value for measuring voltage-controlled decaying chip in low-temperature values, room temperature value and high temperature values is corresponding
Voltage value.
By taking -40 DEG C of low-temperature values, 20 DEG C of room temperature value and 85 DEG C of high temperature values as an example, power under environment in test equipment, before disconnection
Rear class measures the corresponding voltage value of each pad value of voltage-controlled decaying chip, it is as shown in table 1 to obtain basic data.By the datagram of table 1
Shape, obtained attenuation-voltage value curve graph are as shown in Figure 2.
The corresponding voltage value basic data of 1 each pad value of voltage-controlled decaying chip of table
S12, according to voltage change slope calculation formula, calculates the corresponding decaying temperature of each pad value and becomes using 1dB as stepping
Coefficient.
As seen from Figure 2, in the case of -40 DEG C of low-temperature values, 20 DEG C of room temperature value and 85 DEG C of high temperature values, attenuation-voltage value
Curve is not linear, and high/low temperature is opening-like gradually opens.But the corresponding high temperature voltage value of each pad value and often
The difference of warm voltage value, it is essentially the same (60 DEG C of high temperature difference, 65 DEG C of Low Temperature Difference) with the difference of low temperature voltage value and room temperature voltage value.
Thus can deduce a certain particular decay value, variation of the corresponding voltage value from high temperature to low temperature be it is linear, can
First to find out the voltage change slope of differential declines value.Calculation formula are as follows:
Wherein, k is warm variable coefficient, and i is attenuation, i=1,2,3 ... ... 25, VHigh temperature iFor at 85 DEG C of high temperature, each attenuation
Corresponding voltage value, VLow temperature iFor at -40 DEG C of low temperature, the corresponding voltage value of each attenuation.
The corresponding temperature variable coefficient of each attenuation can be acquired by formula (1), attenuation-temperature variable coefficient table is as shown in table 2.
2 attenuation of table-temperature variable coefficient table
S13, each pad value, room temperature value and warm variable coefficient of decaying constitute the preset attenuation compensation-temperature and become system
Number table.
The corresponding voltage value of (25 DEG C) attenuation under room temperature is added in table 2, attenuation compensation amount-temperature can be obtained and become system
Number table table_kvsat is as shown in table 3.
3 attenuation compensation amount of table-temperature variable coefficient table table_kvsat
Wherein, the step of preset temperature-attenuation compensation table obtains are as follows:
S21 tests out the yield value of equipment when voltage-controlled decaying chip attenuation compensation value is zero, and temperature is room temperature value；
At interval of the yield value A0 of 10 DEG C of test record equipment in temperature compensation temperature range；
S22, in temperature compensation temperature range at interval of the yield value Ak, k=25 of+10 DEG C of (or -10 DEG C) test equipments ±
10n, wherein n=1,2,3,4 ..., n are positive integer.
S23 makes the difference the yield value Ak and yield value A0, calculates the attenuation compensation value at interval of 10 DEG C, constitutes pre-
If temperature-attenuation compensation table.The temperature of acquisition-attenuation compensation table is as shown in table 4.
4 temperature of table-attenuation compensation table
| Temperature (DEG C) | Attenuation compensation (dB) |
| -40 | 1.72 |
| -30 | 1.6 |
| -20 | 1.365 |
| -10 | 1.067 |
| 0 | 0.805 |
| 10 | 0.453 |
| 25 | 0 |
| 35 | -0.267 |
| 45 | -0.446 |
| 55 | -0.71 |
| 65 | -1.075 |
| 75 | -1.399 |
| 85 | -1.87 |
Temperature value is obtained, the corresponding attenuation compensation of the temperature value is found from preset temperature-attenuation compensation table
Value, found from preset decaying-temperature variable coefficient table with immediate two offsets of the attenuation compensation value, two most connect
The median of the corresponding warm variable coefficient of decaying of nearly offset, the as warm variable coefficient of the corresponding decaying of acquisition temperature value.Calculation formula
Are as follows:
M=M1+ (att-att1) (M2-M1)/(att2-att1) ... (2)
Wherein, M is to obtain the warm variable coefficient of the corresponding decaying of temperature value, and att is from preset temperature-attenuation compensation table
The attenuation compensation value found, att1 are attenuation compensation value less than normal with att neighbor in decaying-temperature variable coefficient table, and att2 is
The attenuation compensation value bigger than normal with att1 neighbor in decaying-temperature variable coefficient table, M2 are attenuation compensation value in decaying-temperature variable coefficient table
The warm variable coefficient of the corresponding decaying of att2, M1 are the warm variable coefficient of the corresponding decaying of attenuation compensation value att1 in decaying-temperature variable coefficient table.
For example, the temperature value obtained is -10 DEG C, then -10 DEG C are found in temperature-attenuation compensation table table 4 and corresponding is declined
Subtracting compensation is 1.067dB, in decaying-temperature variable coefficient table table 3, the attenuation compensation less than normal with attenuation compensation 1.067dB neighbor
Value is 1dB, is 2dB with attenuation compensation 1.067dB neighbor attenuation compensation value bigger than normal, tabling look-up 3 obtains, the corresponding decaying of 1dB
Warm variable coefficient is that the warm variable coefficient of the corresponding decaying of -0.00058,2dB is -0.00023, then the warm variable coefficient of -10 DEG C of corresponding decaying
It is found out by formula (2), is -0.00055655.
Since the pad value in decaying-temperature variable coefficient table table 3 is without negative, so the attenuation compensation value in table 4 is all added
Preset negative value attenuation compensation value, is adjusted to positive value for negative value, obtains interim attenuation compensation value, mends for example, setting negative value decays
Repaying value is 2dB, then the interim attenuation compensation table of available temperature-is as shown in table 5.
The interim attenuation compensation table of 5 temperature of table-
| Temperature (DEG C) | Attenuation compensation (dB) |
| -40 | 3.72 |
| -30 | 3.6 |
| -20 | 3.365 |
| -10 | 3.067 |
| 0 | 2.805 |
| 10 | 2.453 |
| 25 | 2 |
| 35 | 1.733 |
| 45 | 1.554 |
| 55 | 1.29 |
| 65 | 0.925 |
| 75 | 0.601 |
| 85 | 0.13 |
For example, the temperature value obtained is 35 DEG C, then 35 DEG C of correspondences are found in the interim attenuation compensation table (table 5) of temperature-
Attenuation compensation be 1.733, find two neighbouring attenuation compensation values and its corresponding temperature in decaying-temperature variable coefficient table table 3
Variable coefficient table, by formula (2), can find out the warm variable coefficient of corresponding decaying is -0.00032345.
S3 finds the corresponding isostatic compensation value of the temperature value from preset temperature-isostatic compensation table, from default
Decaying-temperature variable coefficient table in find the corresponding balanced warm variable coefficient of the isostatic compensation value.
Wherein, the step of preset temperature-isostatic compensation table obtains include:
S31 tests out the equilibrium value of equipment when voltage-controlled decaying chip attenuation compensation value is zero, and temperature is room temperature value
B0；
S32, in temperature compensation temperature range at interval of the equilibrium value Bj, j=25 of+10 DEG C of (or -10 DEG C) test equipments ±
10n, wherein n=1,2,3,4 ..., n are positive integer.
S33 makes the difference the equilibrium value Bj and equilibrium value B0, calculates the isostatic compensation value at interval of 10 DEG C, constitutes pre-
If temperature-isostatic compensation table, as shown in table 6.
6 temperature of table-isostatic compensation table
| Temperature (DEG C) | Isostatic compensation (dB) |
| -40 | -1.43 |
| -30 | -1.18 |
| -20 | -0.835 |
| -10 | -0.578 |
| 0 | -0.425 |
| 10 | -0.212 |
| 25 | 0 |
| 35 | 0.118 |
| 45 | 0.276 |
| 55 | 0.398 |
| 65 | 0.595 |
| 75 | 0.816 |
| 85 | 1.06 |
Temperature value is obtained, the corresponding balanced benefit of the temperature value is found from preset temperature-isostatic compensation table table 6
Repay value, found from preset decaying-temperature variable coefficient table table 3 with immediate two offsets of the attenuation compensation value, two
A median closest to the corresponding warm variable coefficient of decaying of offset, the as warm variable coefficient of the corresponding decaying of acquisition temperature value, meter
Shown in calculation method such as formula (2).
Since the pad value in decaying-temperature variable coefficient table table 3 is without negative, so the isostatic compensation value in table 6 is all added
Preset negative value isostatic compensation value, is adjusted to positive value for negative value, obtains interim isostatic compensation value, for example, setting negative value equilibrium is mended
Repaying value is 1.5dB, then the interim isostatic compensation table of available temperature-is as shown in table 7.
The interim isostatic compensation table of 7 temperature of table-
| Temperature (DEG C) | Isostatic compensation (dB) |
| -40 | 0.07 |
| -30 | 0.48 |
| -20 | 0.67 |
| -10 | 0.922 |
| 0 | 1.075 |
| 10 | 1.288 |
| 25 | 1.5 |
| 35 | 1.618 |
| 45 | 1.776 |
| 55 | 1.898 |
| 65 | 2.095 |
| 75 | 2.316 |
| 85 | 2.56 |
For example, the temperature value obtained is -10 DEG C, then found in the interim isostatic compensation table (table 7) of temperature--10 DEG C it is right
The isostatic compensation answered is 0.922, is searched in decaying-temperature variable coefficient table table 3 immediate two neighboring with attenuation compensation value 0.922
Attenuation compensation value is 0dB and 1dB, and the decaying temperature variable coefficient of 1dB reply is that the decaying temperature variable coefficient of -0.00058,0dB reply is
0, then it is 0.00111476 that the warm variable coefficient of corresponding decaying can be found out by formula (2), that is, right when temperature value is -10 DEG C
The warm variable coefficient of the equilibrium answered is 0.00111476.
S4 brings the target voltage values, decay warm variable coefficient, temperature value into decaying allocation formula, calculates the temperature
Decaying under angle value configures voltage value.
Decay allocation formula are as follows:
Vc [T1] _ att=VC1+K1* (T1-T0) ... (3)
Wherein, vc [T1] _ att is decaying configuration voltage value, and VC1 is target voltage values, and K1 is that decay warm variable coefficient, T1 is
The temperature value of acquisition, T0 are calibration temperatures.
S5 brings the target voltage values, balanced warm variable coefficient, temperature value into equilibrium allocation formula, calculates the temperature
Equilibrium allocation voltage value under angle value.
Equilibrium allocation formula are as follows:
Vd [T1] _ att=Vd1+K2* (T1-T0) ... (4)
Wherein, vd [T1] _ att is equilibrium allocation voltage value, and Vd1 is target voltage values, and K2 is that balanced warm variable coefficient, T1 are
Real-time temperature value, T0 are calibration temperatures.
The decaying acquired is configured voltage value and equilibrium allocation voltage value is used to carry out temperature-compensating to equipment by S6.
Based on same design, the invention also provides a kind of broadband high precision apparatus output level band slope temperature compensation systems
System, including voltage-controlled balanced device, voltage-controlled attenuator, D/A converter module, data processor and temperature sensor, wherein
Temperature sensor is for obtaining calibration temperature and real-time temperature value；
Data processor stores preset temperature-attenuation compensation table, decaying-temperature variable coefficient table and preset temperature-
Isostatic compensation table, and obtain calibration temperature and real-time temperature value from the temperature sensor, according to real-time temperature value, from
The corresponding attenuation compensation value of the temperature value is found in preset temperature-attenuation compensation table, becomes system from preset decaying-temperature
The warm variable coefficient of the corresponding decaying of the attenuation compensation value is found in number table, is found from preset temperature-isostatic compensation table
The corresponding isostatic compensation value of the temperature value, it is corresponding to find the isostatic compensation value from preset decaying-temperature variable coefficient table
The warm variable coefficient of equilibrium, and calculate the decaying under the temperature value according to target voltage values, decay warm variable coefficient, temperature value and match
Voltage value is set, the electricity of the equilibrium allocation under the temperature value is calculated according to the target voltage values, balanced warm variable coefficient, temperature value
Pressure value exports the decaying configuration voltage value and equilibrium allocation voltage value to D/A converter module；
The decaying obtained from data processor is configured voltage value and equilibrium allocation voltage respectively by D/A converter module
Value carries out digital-to-analogue conversion, and the decaying configuration voltage value after conversion is output to voltage-controlled attenuator, by the equilibrium allocation after conversion
Voltage value is output to voltage-controlled balanced device；
Voltage-controlled balanced device and voltage-controlled attenuator are connected in the radio circuit of radio-frequency apparatus, and voltage-controlled attenuator turns according to described
Decaying after changing configures voltage value, decays to radiofrequency signal, voltage-controlled balanced device is according to the equilibrium allocation after the conversion
Voltage value carries out radiofrequency signal balanced.
A kind of down going channel temperature compensation principle figure is connected on down going channel as shown in figure 3, downlink radio-frequency signal is input to
The voltage-controlled attenuator in circuit, downlink radio-frequency signal be input to after the temperature-compensating of the voltage-controlled attenuator it is described
Voltage-controlled balanced device carries out signal equalization, and the voltage-controlled balanced device exports the downlink radio-frequency signal after equilibrium to next stage electricity again
Road constitutes down going channel temperature-compensating.
A kind of data feedback channel temperature compensation principle figure is connected on data feedback channel as shown in figure 4, upstream radio-frequency signal is input to
The voltage-controlled attenuator in circuit, upstream radio-frequency signal be input to after the temperature-compensating of the voltage-controlled attenuator it is described
Voltage-controlled balanced device carries out signal equalization, and the voltage-controlled balanced device exports the upstream radio-frequency signal after equilibrium to next stage electricity again
Road constitutes data feedback channel temperature-compensating.
Radio communication component, radio frequency communication devices contain in RF communication system using a kind of above-mentioned broadband high-precision
Circuit of the equipment output level with slope temperature compensation method.
It is contained in radio communication component radio frequency communication devices, RF communication system and a kind of above-mentioned broadband high-precision is used to set
Standby output level band slope temperature compensation system.
Claims (10)
1. a kind of band slope temperature compensation method of broadband high precision apparatus output level, which is characterized in that step includes:
S1 obtains the target voltage values of each pad value of equipment under calibration temperature；
S2 obtains real-time temperature values, finds that the real-time temperature values are corresponding to decline from preset temperature-attenuation compensation table
Subtract offset, the warm variable coefficient of the corresponding decaying of the attenuation compensation value is found from preset decaying-temperature variable coefficient table；
S3 finds the corresponding isostatic compensation value of the real-time temperature values from preset temperature-isostatic compensation table, from default
Decaying-temperature variable coefficient table in find the corresponding balanced warm variable coefficient of the isostatic compensation value；
S4 brings the target voltage values, decay warm variable coefficient, real-time temperature values into decaying allocation formula, calculates the reality
When temperature value under decaying configure voltage value；
S5 brings the target voltage values, balanced warm variable coefficient, real-time temperature values into equilibrium allocation formula, calculates the reality
When temperature value under equilibrium allocation voltage value；
The decaying is configured voltage value and equilibrium allocation voltage value is used for device temperature compensation by S6.
2. a kind of broadband high precision apparatus output level band slope temperature compensation method as described in claim 1, feature exist
In the preset decaying-temperature variable coefficient table obtaining step includes:
S11 measures the corresponding electricity of voltage-controlled decaying chip each pad value in low-temperature values, room temperature value and high temperature values using 1dB as stepping
Pressure value；
S12, according to voltage change slope calculation formula, calculates the corresponding decaying temperature of each pad value and becomes system using 1dB as stepping
Number；
S13, when each pad value, room temperature value the corresponding voltage value of each pad value and warm variable coefficient of decaying constitute it is described default
Decaying-temperature variable coefficient table.
3. a kind of broadband high precision apparatus output level band slope temperature compensation method as described in claim 1, feature exist
In the obtaining step of the preset temperature-attenuation compensation table includes:
S21 tests out the yield value A of equipment when voltage-controlled decaying chip attenuation compensation value is zero, and temperature is room temperature value0；
S22, at interval of the yield value A of+10 DEG C of (or -10 DEG C) test equipments in temperature compensation temperature rangek, k=25 ± 10n, wherein n
=1,2,3,4 ..., n are positive integer；
S23, by the yield value AkWith yield value A0It makes the difference, calculates the attenuation compensation value at interval of 10 DEG C, constitute preset temperature
Degree-attenuation compensation table.
4. a kind of broadband high precision apparatus output level band slope temperature compensation method as described in claim 1, feature exist
In the obtaining step of the preset temperature-isostatic compensation table includes:
S31 tests out the equilibrium value B of equipment when voltage-controlled decaying chip attenuation compensation value is zero, and temperature is room temperature value0；
S32, at interval of the equilibrium value B of+10 DEG C of (or -10 DEG C) test equipments in temperature compensation temperature rangej, j=25 ± 10n, wherein n
=1,2,3,4 ..., n are positive integer；
S33, by the equilibrium value BjWith equilibrium value B0It makes the difference, calculates the isostatic compensation value at interval of 10 DEG C, constitute preset temperature
Degree-isostatic compensation table.
5. a kind of broadband high precision apparatus output level band slope temperature compensation method as described in claim 1, feature exist
In decay allocation formula are as follows:
vc[T1]_att=VC1+K1*(T1-T0)
Wherein, vc [T1] _ att is decaying configuration voltage value, and VC1 is target voltage values, and it is to obtain that K1, which is decay warm variable coefficient, T1,
Temperature value, T0 is calibration temperature.
6. a kind of broadband high precision apparatus output level band slope temperature compensation method as described in claim 1, feature exist
In equilibrium allocation formula are as follows:
vd[T1]_att=Vd1+K2*(T1-T0)
Wherein, vd [T1] _ att is equilibrium allocation voltage value, and Vd1 is target voltage values, and it is real-time that K2, which is balanced warm variable coefficient, T1,
Temperature value, T0 is calibration temperature.
7. a kind of broadband high precision apparatus output level band slope temperature compensation system, which is characterized in that including voltage-controlled balanced device,
Voltage-controlled attenuator, D/A converter module, data processor and temperature sensor, wherein
The temperature sensor is for obtaining calibration temperature and real-time temperature value；
The data processor stores preset temperature-attenuation compensation table, decaying-temperature variable coefficient table and preset temperature-
Isostatic compensation table, and calibration temperature and real-time temperature value are obtained from the temperature sensor, according to the real-time temperature
Value, finds the corresponding attenuation compensation value of the temperature value, from preset decaying-temperature from preset temperature-attenuation compensation table
The warm variable coefficient of the corresponding decaying of the attenuation compensation value is found in variable coefficient table, is looked into from preset temperature-isostatic compensation table
The corresponding isostatic compensation value of the temperature value is found, finds the isostatic compensation value from preset decaying-temperature variable coefficient table
Corresponding balanced warm variable coefficient, and calculated under the temperature value according to the target voltage values, decay warm variable coefficient, temperature value
Decaying configure voltage value, calculated according to the target voltage values, balanced warm variable coefficient, temperature value equal under the temperature value
Weighing apparatus configuration voltage value exports the decaying configuration voltage value and equilibrium allocation voltage value to D/A converter module；
The decaying obtained from data processor is configured voltage value and equilibrium allocation voltage respectively by the D/A converter module
Value carries out digital-to-analogue conversion, and the decaying configuration voltage value after conversion is output to voltage-controlled attenuator, by the equilibrium allocation after conversion
Voltage value is output to voltage-controlled balanced device；
The voltage-controlled balanced device and voltage-controlled attenuator are connected in the radio circuit of radio-frequency apparatus, and voltage-controlled attenuator turns according to described
Decaying after changing configures voltage value, decays to radiofrequency signal, voltage-controlled balanced device is according to the equilibrium allocation after the conversion
Voltage value carries out radiofrequency signal balanced.
8. a kind of broadband high precision apparatus output level band slope temperature compensation system as claimed in claim 6, feature exist
In downlink radio-frequency signal is input to the voltage-controlled attenuator being connected in down going channel circuit, and downlink radio-frequency signal is passing through
It is input to the voltage-controlled balanced device after the temperature-compensating of the voltage-controlled attenuator and carries out signal equalization, the voltage-controlled balanced device is defeated again
The downlink radio-frequency signal after equilibrium is to next stage circuit out；
Upstream radio-frequency signal is input to the voltage-controlled attenuator being connected in data feedback channel circuit, and upstream radio-frequency signal is passing through
It is input to the voltage-controlled balanced device after the temperature-compensating of the voltage-controlled attenuator and carries out signal equalization, the voltage-controlled balanced device is defeated again
The upstream radio-frequency signal after equilibrium is to next stage circuit out.
9. being contained in radio communication component, radio frequency communication devices, RF communication system using as described in claim 1-5 is any
A kind of circuit of the high precision apparatus output level in broadband with slope temperature compensation method.
10. being contained in radio communication component, radio frequency communication devices, RF communication system using such as any institute of claim 6-8
A kind of broadband high precision apparatus output level band slope temperature compensation system stated.
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