CN104901751B - A kind of radio-frequency apparatus temperature compensation and device - Google Patents

A kind of radio-frequency apparatus temperature compensation and device Download PDF

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Publication number
CN104901751B
CN104901751B CN201510229566.6A CN201510229566A CN104901751B CN 104901751 B CN104901751 B CN 104901751B CN 201510229566 A CN201510229566 A CN 201510229566A CN 104901751 B CN104901751 B CN 104901751B
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frequency
radio
value
temperature
amplifier
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CN104901751A (en
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郑翠翠
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Shenzhen dingyang Technology Co., Ltd
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SHENZHEN SIGLENT TECHNOLOGIES Co Ltd
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Abstract

The radio-frequency apparatus temperature compensation and device that the application provides, record initial temperature value during radio-frequency apparatus calibration, read the corrected power value of standard source output and the temperature value that radio-frequency apparatus is current, judge whether the difference of the initial temperature value of the current temperature value of radio-frequency apparatus and radio-frequency apparatus exceedes threshold value, if, switch is then switched into standard source, obtain the current performance number of radio-frequency apparatus, the main channel for being switched to radio-frequency apparatus will be switched again, calculate the difference between corrected power value and the current performance number of radio-frequency apparatus, obtain temperature compensation value, temperature-compensating is carried out to radio-frequency apparatus further according to temperature compensation value.Standard source is a stable source, can keep output amplitude change between 0.1dB to+0.1dB scopes, change in gain very little.In radio-frequency apparatus running, it can compare in real time with standard source, influence of the real-Time Compensation temperature to channel gain, so as to ensure that it is smaller that radio-frequency apparatus is influenced by temperature after being calibrated exactly.

Description

A kind of radio-frequency apparatus temperature compensation and device
Technical field
The application is related to a kind of radio-frequency apparatus temperature compensation and device.
Background technology
Existing radio-frequency apparatus places the gain of temperature compensation device radio-frequency apparatus, can be because the change of environment temperature, can be with The change of temperature and change, can so cause the machine after calibration, reading becomes inaccurate again, cause measurement result by Very big influence.Therefore, in order to ensure the degree of accuracy of the gain of radio-frequency apparatus, it is necessary to which the characteristic of channel temperature change is mended Repay.
The way of temperature-compensating of the prior art to radio-frequency apparatus has following two:Method one is to place temperature in radio-frequency apparatus Device is mended, or by gathering the property at high and low temperature of some model machines, then makes temperature characterisitic table and goes to compensate.But put Temperature compensation device is put, the influence of temperature can only be reduced, but influence of the temperature change to gain can not be completely eliminated, it is therefore, this The method of temperature-compensating can not be supplemented accurately radio-frequency apparatus.Another method is:The passage temperature of collecting device in advance Characteristic is spent, draws the relation of channel gain and temperature change, then is compensated, the device of different batches, temperature characterisitic has difference It is different, cause compensation inaccurate, and also the sample size needed is bigger, and previous work two is also very big.Need substantial amounts of sample number According to, and it is time-consuming also laborious and also not accurate enough for some equipment higher to amplitude requirement, this method.
The content of the invention
The application provides a kind of radio-frequency apparatus temperature compensation and device, can solve radio-frequency apparatus gain can because The change of environment temperature and the problem of be affected, reduce gain error.
According to the application's in a first aspect, the application provides a kind of radio-frequency apparatus temperature compensation, including:Record radio frequency Initial temperature value during equipment Alignment;The corrected power value of standard source output is read, the corrected power value represents the radio frequency Watt level when equipment works under the initial temperature value;The current temperature value of radio-frequency apparatus is read, and is penetrated described in judgement Whether the difference of initial temperature value when the current temperature value of frequency equipment is calibrated with the radio-frequency apparatus exceedes threshold value, if so, then Switch is switched into the standard source, obtains the current performance number of the radio-frequency apparatus;Calculate the corrected power value and described Difference between the current performance number of radio-frequency apparatus, obtains temperature compensation value;The radio frequency is set according to the temperature compensation value It is standby to carry out temperature-compensating.
Optionally, the threshold value is 5 degree.
Optionally, include before the corrected power value for reading standard source output:The master for switching to radio-frequency apparatus will be switched Passage.
Optionally, the current temperature value of radio-frequency apparatus that reads includes:Preset time is spaced, it is current to read radio-frequency apparatus Temperature value.
Optionally, the standard source includes:
One amplifier, a PIN diode, a wave filter, a comparator, two wave detectors;The amplifier Receive reference signal and amplify output;Described comparator one end is connected by the output end of a wave detector and the amplifier Connect, for receiving the signal of the amplifier output;The other end of the comparator passes through another wave detector and digital-to-analogue conversion Device and reference voltage connection;The output end of the comparator is connected by electric capacity with the emitter stage of the amplifier, the ratio Output end compared with device is also connected with PIN diode.
Optionally, the corrected power value for reading standard source output includes:Read and changed by the digital analog converter Value afterwards.
According to the second aspect of the application, there is provided a kind of radio-frequency apparatus temperature compensation means, including:Recording unit, it is used for Record initial temperature value during radio-frequency apparatus calibration;Reading unit, for reading the corrected power value of standard source output, the school Positive value represents the watt level when radio-frequency apparatus works under the initial temperature value;Second reading unit, is used for Read the current temperature value of radio-frequency apparatus;Judging unit, for judging the current temperature value of the radio-frequency apparatus and the radio frequency Whether the difference of the initial temperature value of equipment exceedes threshold value;Computing unit, for judging that result is yes in the judging unit When, switch is switched into standard source, and obtain the current performance number of the radio-frequency apparatus, calculate the corrected power value and described Difference between the current performance number of radio-frequency apparatus, obtains temperature compensation value;Temperature compensation unit, for being mended according to the temperature Repay value and temperature-compensating is carried out to the radio-frequency apparatus.
Optionally, in addition to:The threshold value is 5 degree.
Optionally, in addition to:Switching switch, for the main channel for switching to radio-frequency apparatus will to be switched.
Optionally, the reading unit is specifically used for:Preset time is spaced, reads the current temperature value of radio-frequency apparatus.
Optionally, standard source includes:One amplifier, a PIN diode, a wave filter, a comparator, two Wave detector;The amplifier receives reference signal and amplifies output;Put by the wave detector with described described comparator one end The output end connection of big device, for receiving the signal of the amplifier output;The other end of the comparator by wave detector with Digital analog converter and reference voltage connection;The output end of the comparator is connected by the emitter stage of electric capacity and the amplifier Connect, the output end of the comparator is also connected with PIN diode.
Optionally, the reading unit is specifically used for:Read the value after digital analog converter conversion.
The radio-frequency apparatus temperature compensation and device that the application provides, the initial temperature value of radio-frequency apparatus is recorded, read The corrected power value and the current temperature value of radio-frequency apparatus of standard source output, judge radio-frequency apparatus current temperature value and radio frequency Whether the difference of the initial temperature value of equipment exceedes threshold value, if so, then obtaining the current performance number of radio-frequency apparatus, calculates correction work( Difference between rate value and the current performance number of radio-frequency apparatus, obtains temperature compensation value, radio frequency is set further according to temperature compensation value It is standby to carry out temperature-compensating.Standard source is a stable source, can keep output amplitude change+- 0.1dB, change in gain very little. In radio-frequency apparatus running, it can compare in real time with standard source, influence of the real-Time Compensation temperature to channel gain, so as to ensure that Radio-frequency apparatus is influenced by temperature smaller after being calibrated exactly.
Brief description of the drawings
Fig. 1 is the method flow diagram of the embodiment of the present invention;
Fig. 2 is a kind of structure principle chart in the embodiment of the present invention;
Fig. 3 is the apparatus structure schematic diagram of inventive embodiments;
Fig. 4 is another apparatus structure schematic diagram of inventive embodiments.
Embodiment
The present invention is described in further detail below by embodiment combination accompanying drawing.
In the embodiment of the present application, there is provided a kind of radio-frequency apparatus temperature compensation and device, radio-frequency apparatus can be entered The accurate calibration of row, the gain for solving the problems, such as radio-frequency apparatus can be affected because of the change of environment temperature, reduce gain Error.
Embodiment one:
Fig. 1 is refer to, Fig. 1 is the method flow diagram of the embodiment of the present invention one.A kind of as shown in figure 1, radio-frequency apparatus temperature Compensation method, it may comprise steps of:
101st, initial temperature value during radio-frequency apparatus calibration is recorded.
Initial temperature value is temperature value of the radio-frequency apparatus in normal work.When keeping temperature value work, radio-frequency apparatus Gain will not be impacted.
102nd, the corrected power value of standard source output is read.
Corrected power value represents the watt level when radio-frequency apparatus works under initial temperature value.
Standard source can not be influenceed by ambient temperature, keep the constant of power output.The corrected power of standard source It can be used for the power ratio of radio-frequency apparatus compared with so as to know whether to need to carry out temperature-compensating.As shown in Fig. 2 standard source 20 Including:
One 21, one, amplifier, 23, one, wave filter wave detector 25 of comparator 24, two of PIN diode 22, one.
Amplifier 21 receives reference signal and amplifies output.
The one end of comparator 24 is connected by a wave detector 25 with the output end of amplifier, for reception amplifier output Signal.
Comparator 24 can also be connected with wave filter 23, and wave filter 23 is used to be filtered the output signal of amplifier 21, Comparator 24 accept filter after signal.
Wave filter 23 is additionally provided between wave detector 25 and the output end of amplifier 21, wave filter 23 is used to export amplifier 21 Signal is filtered, comparator 24 accept filter after signal.
The other end of comparator 24 is connected by another wave detector 25 and digital analog converter and reference voltage (DAC) 26 Connect.
Reference voltage is used to provide accurate voltage, and the voltage is smaller with high/low temperature change influence, therefore can give DAC Accurate reference voltage is provided, so as to ensure the accuracy of DAC output voltage, and not with high/low temperature change too greatly.DAC is provided The reference voltage makes reference use to amplifier, and to determine reference voltage, this last standard source circuit is with regard to that can keep constant output Power.Reference voltage can be adjusted by changing DAC internal register.
The output end of comparator 24 is connected by electric capacity 27 with the emitter stage of amplifier 21, the output end of comparator 24 also with PIN diode 22 connects.
Due to the output end of comparator, the emitter stage of amplifier is connected to, forms negative-feedback, comparator exports different electricity Pressure, then can cause the impedance of PIN diode to change, so as to change the multiple of amplifier, the final voltage for causing comparator both ends It is equal, therefore power output keeps constant, realizes the function of standard source.
The embodiment of the present application standard source can in 0~55 degree of environment, keep output amplitude excursion -0.1dB to+ Between 0.1dB, change in gain is small.
Please continue to refer to Fig. 2, the radiofrequency signal that radio-frequency apparatus receives outside by radio frequency reception channel 40 is inputted and read The corrected power value for taking standard source to export.
Preferably, radio frequency reception channel can include:RF switch 41 and the analog-to-digital conversion being connected with RF switch 41 Device (ADC) 42.ADC42 is connected with data acquisition module 43, RF switch 41 is also connected with control module 44, control module 44 with TEMP chip 45 connects.
Control module 44 is used for the switching for controlling the receiving channel of radio-frequency apparatus.
RF switch 41 is used under the control of control module 44, and the receiving channel of radio-frequency apparatus is switched into reception standard The performance number or switch to reception external radio-frequency signal input that source 20 exports.
Data acquisition module 43 is used to receive the data after RF switch 41 is changed by ADC.
TEMP chip 45 is used for the temperature for detecting radio-frequency apparatus.
103rd, the current temperature value of radio-frequency apparatus is read.
104th, judge whether the current temperature value of radio-frequency apparatus and the difference of the initial temperature value of radio-frequency apparatus timing surpass Threshold value is crossed, if so, then performing step 105-107.
Preferably, threshold value is arranged to 5 degree.
105th, switch is switched into standard source, obtains the current performance number of radio-frequency apparatus.
Specifically, RF switch 41 is switched into standard source.
In the embodiment of the present application, after the current performance number of radio-frequency apparatus is obtained, RF switch 41 should be switched to and penetrated The main channel of frequency equipment.
Wherein, in one embodiment, preset time can be spaced, reads the current temperature value of radio-frequency apparatus.
106th, the difference between corrected power value and the current performance number of radio-frequency apparatus is calculated, obtains temperature compensation value. During the normal temperature of the temperature departure calibration of radio-frequency apparatus, its gain can be bigger than normal or less than normal, and temperature compensation value is used to be added to penetrate In frequency equipment, to reach the purpose of compensation radio-frequency apparatus temperature.In the embodiment of the present application, temperature compensation value is one and passes through calculating Obtained performance number.
If corrected power value is po, the current performance number of radio-frequency apparatus is pt, then temperature compensation value is Δ=po-pt
107th, temperature-compensating is carried out to radio-frequency apparatus according to temperature compensation value.
It is understood that the present embodiment step is that said temperature offset Δ is added in radio-frequency apparatus.Specifically, It is the performance number for increasing radio-frequency apparatus or the performance number for reducing radio-frequency apparatus.
After temperature-compensating, the change in gain can of radio-frequency apparatus remains unchanged or controlled within the specific limits.
Wherein it is possible to understand, when corrected power value is poThe performance number current less than radio-frequency apparatus is ptWhen, temperature Offset Δ is negative, and the absolute value of Δ should be subtracted by now carrying out temperature-compensating to radio-frequency apparatus.
When corrected power value is poThe performance number current more than radio-frequency apparatus is ptWhen, temperature compensation value Δ is positive number, now Temperature-compensating is carried out to radio-frequency apparatus should add the value of Δ.
The radio-frequency apparatus temperature compensation that the application provides, the initial temperature value of radio-frequency apparatus is recorded, read standard source The current temperature value of the corrected power value and radio-frequency apparatus of output, judge the current temperature value of radio-frequency apparatus and radio-frequency apparatus Whether the difference of initial temperature value exceedes threshold value, if so, then obtain the current performance number of radio-frequency apparatus, calculate corrected power value and Difference between the current performance number of radio-frequency apparatus, obtains temperature compensation value, and radio-frequency apparatus is carried out further according to temperature compensation value Temperature-compensating.Standard source is a stable source, and can keeping output amplitude change, gain becomes between -0.1dB to+0.1dB Change very little.In radio-frequency apparatus running, it can compare in real time with standard source, influence of the real-Time Compensation temperature to channel gain, from And it is smaller to ensure that radio-frequency apparatus is influenced by temperature after being calibrated exactly.
Embodiment two:
Accordingly, the application also provides a kind of radio-frequency apparatus temperature compensation means, refer to Fig. 3, and Fig. 3 is implemented for the present invention Apparatus structure schematic diagram.As shown in figure 3, radio-frequency apparatus temperature compensation means can include:
Recording unit 30, for recording initial temperature value during radio-frequency apparatus calibration.
Reading unit 31, for reading the corrected power value of standard source output, the corrected power value represents the radio frequency Watt level when equipment works under the initial temperature value.
Second reading unit 32, the temperature value current for reading radio-frequency apparatus.
Judging unit 33, for judging the initial temperature value of the current temperature value of the radio-frequency apparatus and the radio-frequency apparatus Difference whether exceed threshold value.
Computing unit 34, for when it is to be that judging unit 33, which judges result, switch being switched into standard source, and obtain The current performance number of the radio-frequency apparatus, the difference of the corrected power value and the current performance number of the radio-frequency apparatus is calculated, Obtain temperature compensation value.
Temperature compensation unit 35, for carrying out temperature-compensating to the radio-frequency apparatus according to the temperature compensation value.
Preferably, threshold value is 5 degree.
Referring to Fig. 4, in one embodiment, in addition to:Switch unit 36, for the master for switching to radio-frequency apparatus will to be switched Passage.
Reading unit 31 is specifically used for:Preset time is spaced, reads the current temperature value of radio-frequency apparatus.
Standard source includes:One amplifier, a PIN diode, a wave filter, a comparator, two wave detectors; The amplifier receives reference signal and amplifies output;Described comparator one end passes through a wave detector and the amplifier Output end connection, for receiving the signal of amplifier output;The other end of the comparator passes through another wave detector It is connected with digital analog converter and reference voltage;The output end of the comparator is connected by the emitter stage of electric capacity and the amplifier Connect, the output end of the comparator is also connected with PIN diode.
Reading unit 31 is specifically used for:Read the value after digital analog converter is changed.
The radio-frequency apparatus temperature compensation means that the application provides, for recording the initial temperature value of radio-frequency apparatus, read mark The current temperature value of the corrected power value and radio-frequency apparatus of the output of quasi- source, judges that the current temperature value of radio-frequency apparatus is set with radio frequency Whether the difference of standby initial temperature value exceedes threshold value, if so, then obtaining the current performance number of radio-frequency apparatus, calculates corrected power Difference between value and the current performance number of radio-frequency apparatus, obtains temperature compensation value, further according to temperature compensation value to radio-frequency apparatus Carry out temperature-compensating.Standard source is a stable source, and output amplitude change can be kept to increase between -0.1dB to+0.1dB Benefit varies less.In radio-frequency apparatus running, it can compare in real time with standard source, shadow of the real-Time Compensation temperature to channel gain Ring, so as to ensure that it is smaller that radio-frequency apparatus is influenced by temperature after being calibrated exactly.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to assert this hair Bright specific implementation is confined to these explanations.For general technical staff of the technical field of the invention, do not taking off On the premise of from present inventive concept, some simple deduction or replace can also be made.

Claims (8)

  1. A kind of 1. radio-frequency apparatus temperature compensation, it is characterised in that including:
    Record initial temperature value during radio-frequency apparatus calibration;
    The corrected power value of standard source output is read, the corrected power value represents the radio-frequency apparatus in the initial temperature value Watt level during lower work;
    The current temperature value of radio-frequency apparatus is read, and judges that the current temperature value of the radio-frequency apparatus is calibrated with the radio-frequency apparatus When the difference of initial temperature value whether exceed threshold value, if so, switch then is switched into the standard source, obtain the radio frequency and set Standby current performance number;
    The difference between the corrected power value and the current performance number of the radio-frequency apparatus is calculated, obtains temperature compensation value;
    Temperature-compensating is carried out to the radio-frequency apparatus according to the temperature compensation value;
    The standard source includes:
    One amplifier, a PIN diode, a wave filter, a comparator, two wave detectors;
    The amplifier receives reference signal and amplifies output;
    Described comparator one end is connected by a wave detector with the output end of the amplifier, defeated for receiving the amplifier The signal gone out;
    The other end of the comparator is connected by another wave detector with digital analog converter and reference voltage;
    The output end of the comparator is connected by electric capacity with the emitter stage of the amplifier, the output end of the comparator also with PIN diode connects;
    The wave filter is arranged between one wave detector and amplifier out, and wave filter, which is used to export amplifier, to be believed Number be filtered, comparator accept filter after signal.
  2. 2. radio-frequency apparatus temperature compensation as claimed in claim 1, it is characterised in that the acquisition radio-frequency apparatus is worked as Include after preceding performance number:
    The main channel for switching to radio-frequency apparatus will be switched.
  3. 3. radio-frequency apparatus temperature compensation as claimed in claim 2, it is characterised in that the radio-frequency apparatus that reads is current Temperature value includes:
    Preset time is spaced, reads the current temperature value of radio-frequency apparatus.
  4. 4. radio-frequency apparatus temperature compensation as claimed in claim 3, it is characterised in that the school for reading standard source output Positive value includes:
    Read the value after digital analog converter conversion.
  5. A kind of 5. radio-frequency apparatus temperature compensation means, it is characterised in that including:
    Recording unit, for recording initial temperature value during radio-frequency apparatus calibration;
    Reading unit, for reading the corrected power value of standard source output, the corrected power value represents that the radio-frequency apparatus exists Watt level when being worked under the initial temperature value;
    Second reading unit, the temperature value current for reading radio-frequency apparatus;
    Judging unit, for judging the current temperature value of the radio-frequency apparatus and the difference of the initial temperature value of the radio-frequency apparatus Whether threshold value is exceeded;
    Computing unit, for when it is to be that the judging unit, which judges result, switch to be switched into standard source, and described in acquisition The current performance number of radio-frequency apparatus, the difference between the corrected power value and the current performance number of the radio-frequency apparatus is calculated, Obtain temperature compensation value;
    Temperature compensation unit, for carrying out temperature-compensating to the radio-frequency apparatus according to the temperature compensation value;
    Standard source includes:
    One amplifier, a PIN diode, a wave filter, a comparator, two wave detectors;
    The amplifier receives reference signal and amplifies output;
    Described comparator one end is connected by a wave detector with the output end of the amplifier, defeated for receiving the amplifier The signal gone out;
    The other end of the comparator is connected by another wave detector with digital analog converter and reference voltage;
    The output end of the comparator is connected by electric capacity with the emitter stage of the amplifier, the output end of the comparator also with PIN diode connects;
    The wave filter is arranged between one wave detector and amplifier out, and wave filter, which is used to export amplifier, to be believed Number be filtered, comparator accept filter after signal.
  6. 6. radio-frequency apparatus temperature compensation means as claimed in claim 5, it is characterised in that also include:
    Switch unit, for the main channel for switching to radio-frequency apparatus will to be switched.
  7. 7. radio-frequency apparatus temperature compensation means as claimed in claim 6, it is characterised in that second reading unit is specifically used In:Preset time is spaced, reads the current temperature value of radio-frequency apparatus.
  8. 8. radio-frequency apparatus temperature compensation means as claimed in claim 7, it is characterised in that the reading unit is specifically used for: Read the value after digital analog converter conversion.
CN201510229566.6A 2015-05-07 2015-05-07 A kind of radio-frequency apparatus temperature compensation and device Active CN104901751B (en)

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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
CN110162430A (en) * 2018-02-13 2019-08-23 华为技术有限公司 A kind of temperature self-adaptation method, device and equipment
CN108599738A (en) * 2018-03-22 2018-09-28 中国科学院上海微系统与信息技术研究所 A kind of closed-loop driving circuit suitable for MEMS resonant formula sensor
CN110311633A (en) * 2019-07-08 2019-10-08 成都锐芯盛通电子科技有限公司 Millimeter wave broadband detection warm linearity autocompensation installation and its method entirely

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CN101447770A (en) * 2007-11-27 2009-06-03 锐迪科微电子(上海)有限公司 Temperature compensation circuit and method of radio-frequency power amplifiers
CN101309099B (en) * 2008-07-10 2012-05-09 青岛海信移动通信技术股份有限公司 Radio frequency power control method of mobile terminal
CN102149178A (en) * 2010-02-08 2011-08-10 联芯科技有限公司 Method and device for compensating temperature of mobile terminal power
CN103458447B (en) * 2012-06-01 2018-05-25 中兴通讯股份有限公司 A kind of base station Temperature compensation for gain, calibration and verification method and compensation device
CN103856172B (en) * 2012-11-30 2017-02-08 环旭电子股份有限公司 Electronic system, radio frequency power amplifier and temperature compensation method of amplifier
CN203968063U (en) * 2013-12-09 2014-11-26 深圳市君威科技有限公司 A kind of rf gain compensation arrangement
CN104460817A (en) * 2014-10-10 2015-03-25 中国电子科技集团公司第四十一研究所 High-stability power control circuit and method for common-mode temperature compensation demodulation

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Address after: 518000 Guangdong Province, Baoan District, Baoan District, Xin'an Street, Xingdong Community, 68 District, Antongda Industrial Factory Area, 4 factories, 3 floors, 5 office buildings, 1-3 floors

Patentee after: Shenzhen dingyang Technology Co., Ltd

Address before: Shenzhen City, Guangdong province Baoan District 518000 District 68 road left three Antongda Industrial Park, 4 floor

Patentee before: Shenzhen Siglent Technologies Co., Ltd.