CN102497235B - Wide dynamic range radio frequency power detection apparatus and detection mode thereof - Google Patents
Wide dynamic range radio frequency power detection apparatus and detection mode thereof Download PDFInfo
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Abstract
The invention provides a wide dynamic range radio frequency power detection apparatus and a detection mode thereof. The detection apparatus comprises: a signal input port, five switches, a square unit, a logarithmic converter, a current-to-voltage converter, a buffer and six capacitors. The invention provides a novel method for realizing a root-mean-square power detector of a wide dynamic range and a detection apparatus. Automatic zero calibration is utilized to realize mismatching compensation of an amplification circuit inside the detector; therefore, an input dynamic range lower limit of the root-mean-square power detector can be expanded and the input signal range lower limit can even be expanded to -55dBm.
Description
Technical field
The present invention relates to wide dynamic range radio-frequency power detection field, particularly a kind of wide dynamic range device for detecting power of radio frequency and detection mode thereof.
Background technology
Power detector is applied very extensive in wireless communication system, it can be applied to the transmitting power of the multiple communication standards such as GSM/EDGE, CDMA, LTE and control, also can be used for hand-hold type radiofrequency signal power measurement, due to the output of the mean effective power wave detector rms voltage linear change along with input exchange signal, irrelevant with the modulation system of input signal, therefore for radio-frequency (RF) communication system, the power detector of wide dynamic range contributes to system better to work.At present wave detector can be divided into two classes: logarithmic detector and mean effective power wave detector, but the former makes response to the amplitude of input signal, so for power is identical but the input signal that modulation system is different output difference to some extent; The latter makes response to the power of input signal, it is more accurate for the power of radio system, to control, but the implementation of traditional Root Mean square Converter as shown in Figure 1, input signal is delivered to output buffer after squaring cell processing output filtering is average, the output of buffer feeds back to squaring cell, and squaring cell is output as like this
/ Vout, because output buffer is unity gain amplifier, so finally can obtain Vout=
output is along with the root-mean-square value linear change of input signal, this structure has three shortcomings: one, because this structure is a closed-loop system, Cave is the output for filtering mean square unit, general value at hundreds of pF between nF, so the stabilization time of whole loop is longer, the output response of system is slower; Two, because
/ Vout characteristic is to regulate internal bias electric current to realize by output being fed back to squaring cell, but when squaring cell is operated in high frequency, requires suitable bias current, so this structure is confined to low frequency signal application; Three, output is with the root-mean-square value linear change of input signal, the logarithm that its input dynamic range is compared with input signal root-mean-square value changes little, therefore in the amplification link due to conventional power wave detector, there is matching problem, the deviation that the input signal that can cause wave detector is brought by coupling in link is flooded, and the input dynamic range lower limit of wave detector can be restricted.
Summary of the invention
The present invention proposes a kind of new method and the checkout gear of realizing wide dynamic range mean effective power wave detector for this reason, utilize automatic zero adjustment to realize the inner amplifying circuit mismatch compensation of wave detector, thereby the input dynamic range lower limit of mean effective power wave detector is expanded, for reaching this object, the invention provides a kind of wide dynamic range device for detecting power of radio frequency, comprise signal input port, 5 switches, squaring cell, logarithmic converter, current-to-voltage convertor, buffer and 6 electric capacity, described squaring cell has two inputs and two outputs, described signal input port one end ground connection, input of the signal input port other end and squaring cell is connected, between described signal input port and squaring cell, be connected with the first switch, described the 6th electric capacity one end ground connection, the 6th another input of the electric capacity other end and squaring cell is connected, between described the 6th electric capacity and squaring cell, be connected with second switch, described the 3rd switch one end is connected between the first switch and squaring cell, described the 3rd switch other end is connected between second switch and squaring cell, two inputs of two outputs of described squaring cell and logarithmic converter are connected, described second electric capacity one end and the 3rd electric capacity one end are connected between two outputs of squaring cell and two inputs of logarithmic converter, the described second electric capacity other end is connected with the 3rd electric capacity other end and ground connection, two inputs of two outputs of described logarithmic converter and current-to-voltage convertor are connected, two outputs of logarithmic converter are also connected with two inputs of logarithmic converter, described the 4th switch and the 5th switch are also separately positioned on two outputs of logarithmic converter and between two inputs of logarithmic converter, two outputs of logarithmic converter are also connected with the 5th electric capacity one end with the 4th electric capacity one end respectively, the 4th electric capacity one end is connected with the 3rd electric capacity one end with second electric capacity one end with the 5th electric capacity one end and ground connection, described current-to-voltage convertor output is connected with buffer input, described buffer output end is connected with first electric capacity one end, described the first electric capacity other end ground connection.
As a modification of the present invention, described logarithmic converter comprises amplifier and detector, and described amplifier is 2-8, and described detector is 2-8, and this patent is established the logarithmic converter of amplifier and detector input signal is processed in can adopting.
As a modification of the present invention, in described logarithmic converter, there are 4 amplifiers and 4 detectors, two outputs of described squaring cell are connected with the first amplifier in, described the first amplifier out is connected with the first detector input with the second amplifier in, described the second amplifier out is connected with the second detector input with the 3rd amplifier in, described the 3rd amplifier out is connected with the 3rd detector input with the 4th amplifier in, described the 4th amplifier out is connected with the 4th detector input, described the first detector output end, the second detector output end, the 3rd detector output end is all connected with two inputs of current-to-voltage convertor with the 4th detector output end, this patent adopts this structure logarithmic converter to process and can obtain best result input signal, even can extend to-55dBm of input reference signal lower limit.
Wide dynamic range device for detecting power of radio frequency detection mode described in this patent, concrete detecting step is as follows:
First opening closed the 3rd switch of the first switch and second switch, the 4th switch and the 5th switch makes squaring cell and logarithmic converter and the second electric capacity, the 3rd electric capacity, the 4th electric capacity and the 5th electric capacity form closed circuit, after loop current is stable, input signal is stored in the 4th electric capacity and the 5th electric capacity through the device mismatch of amplifier in squaring cell and logarithmic converter;
Then closed the first switch and second switch are opened the 3rd switch, the 4th switch and the 5th switch, until system after normal power detected state, input signal after squaring cell to logarithmic converter, output difference current, difference current becomes Voltage-output to buffer through current-to-voltage convertor current conversion, and the mismatch of now storing on intrinsic mismatch and the 4th electric capacity and the 5th electric capacity in system is offset.
The present invention proposes a kind of new method and the checkout gear of realizing wide dynamic range mean effective power wave detector, utilize automatic zero adjustment to realize the inner amplifying circuit mismatch compensation of wave detector, thereby the input dynamic range lower limit of mean effective power wave detector is expanded, even can extend to-55dBm of input reference signal lower limit, makes whole device have the temperature drift of wide input dynamic range, little output voltage and due to output voltage and input signal modulation system is irrelevant, therefore output response is fast, low in energy consumption.
Accompanying drawing explanation
Fig. 1 is prior art schematic diagram of the present invention;
Fig. 2 is specific implementation module frame chart of the present invention;
Fig. 3 is logarithmic converter schematic diagram of the present invention;
Member in figure is:
1, signal input port; 2-1, the first switch; 2-2, second switch;
2-3, the 3rd switch; 2-4, the 4th switch; 2-5, the 5th switch;
3, squaring cell; 4, logarithmic converter; 4-1-1, the first amplifier;
4-1-2, the second amplifier; 4-1-3, the 3rd amplifier; 4-1-4, the 4th amplifier;
4-2-1, the first detector; 4-2-2, the second detector; 4-2-3, the 3rd detector;
4-2-4, the 4th detector; 5, current-to-voltage convertor; 6, buffer;
7-1, the first electric capacity; 7-2, the second electric capacity; 7-3, the 3rd electric capacity;
7-4, the 4th electric capacity; 7-5, the 5th electric capacity; 7-6, the 6th electric capacity;
Embodiment
Below in conjunction with drawings and Examples, invention is described in detail:
The present invention proposes a kind of new method and the checkout gear of realizing wide dynamic range mean effective power wave detector, utilize automatic zero adjustment to realize the inner amplifying circuit mismatch compensation of wave detector, thereby the input dynamic range lower limit of mean effective power wave detector is expanded.
As a kind of specific embodiment of this patent, the invention provides and realize block diagram a kind of wide dynamic range device for detecting power of radio frequency as shown in Figure 2, comprise signal input port 1, 5 switches, squaring cell 3, logarithmic converter 4, current-to-voltage convertor 5, buffer 6 and 6 electric capacity, described logarithmic converter 4 comprises amplifier and detector, described amplifier is 2-8, described detector is 2-8, this patent is established the logarithmic converter of amplifier and detector input signal is processed in can adopting, described squaring cell 3 has two inputs and two outputs, described signal input port 1 one end ground connection, 3 one inputs of signal input port 1 other end and squaring cell are connected, between described signal input port 1 and squaring cell 3, be connected with the first switch 2-1, described the 6th electric capacity 7-6 one end ground connection, the 6th electric capacity 7-6 other end is connected with squaring cell 3 another inputs, between described the 6th electric capacity 7-6 and squaring cell 3, be connected with second switch 2-2, described the 3rd switch 2-3 one end is connected between the first switch 2-1 and squaring cell 3, described the 3rd switch 2-3 other end is connected between second switch 2-2 and squaring cell 3, 4 two inputs of 3 two outputs of described squaring cell and logarithmic converter are connected, described second electric capacity 7-2 one end and the 3rd electric capacity 7-3 one end are connected between 3 two outputs of squaring cell and 4 two inputs of logarithmic converter, the described second electric capacity 7-2 other end is connected with the 3rd electric capacity 7-3 other end and ground connection, 5 two inputs of 4 two outputs of described logarithmic converter and current-to-voltage convertor are connected, 4 two outputs of logarithmic converter are also connected with 4 two inputs of logarithmic converter, described the 4th switch 2-4 and the 5th switch 2-5 are also separately positioned on 4 two outputs of logarithmic converter and between 4 two inputs of logarithmic converter, 4 two outputs of logarithmic converter are also connected with the 5th electric capacity 7-5 one end with the 4th electric capacity 7-4 one end respectively, , the 4th electric capacity 7-4 one end is connected with the 3rd electric capacity 7-3 one end with second electric capacity 7-2 one end with the 5th electric capacity 7-5 one end and ground connection, described current-to-voltage convertor 5 outputs are connected with buffer 6 inputs, described buffer 6 outputs are connected with first electric capacity 7-1 one end, described the first electric capacity 7-1 other end ground connection, this patent utilizes automatic zero adjustment to realize the inner amplifying circuit mismatch compensation of wave detector, thereby the input dynamic range lower limit of mean effective power wave detector is expanded.
Described wide dynamic range device for detecting power of radio frequency detection mode, concrete detecting step is as follows:
First opening the first switch 2-1 and second switch 2-2 closed the 3rd switch 2-3, the 4th switch 2-4 and the 5th switch 2-5 makes squaring cell 3 and logarithmic converter 4 and the second electric capacity 7-2, the 3rd electric capacity 7-3, the 4th electric capacity 7-4 and the 5th electric capacity 7-5 form closed circuit, after loop current is stable, input signal is stored in the 4th electric capacity 7-4 and the 5th electric capacity 7-5 through the device mismatch of squaring cell 3 and logarithmic converter 4 interior amplifiers;
Then closed the first switch 2-1 and second switch 2-2 open the 3rd switch 2-3, the 4th switch 2-4 and the 5th switch 2-5, until system after normal power detected state, input signal after squaring cell 3 to logarithmic converter 4, output difference current, difference current becomes Voltage-output to buffer 6 through current-to-voltage convertor 5 current conversion, and now in system, the mismatch of the upper storage of intrinsic mismatch and the 4th electric capacity 7-4 and the 5th electric capacity 7-5 is offset.
As a kind of most preferred embodiment of this patent, the invention provides a kind of wide dynamic range device for detecting power of radio frequency as shown in Figure 2, comprise signal input port 1, 5 switches, squaring cell 3, logarithmic converter 4, current-to-voltage convertor 5, buffer 6 and 6 electric capacity, described logarithmic converter 4 has 4 amplifiers and 4 detectors in as shown in Figure 3, 3 two outputs of described squaring cell are connected with the first amplifier 4-1-1 input, described the first amplifier 4-1-1 output is connected with the first detector 4-2-1 input with the second amplifier 4-1-2 input, described the second amplifier 4-1-2 output is connected with the second detector 4-2-2 input with the 3rd amplifier 4-1-3 input, described the 3rd amplifier 4-1-3 output is connected with the 3rd detector 4-2-3 input with the 4th amplifier 4-1-4 input, described the 4th amplifier 4-1-4 output is connected with the 4th detector 4-2-4 input, described the first detector 4-2-1 output, the second detector 4-2-2 output, the 3rd detector 4-2-3 output is all connected with 5 two inputs of current-to-voltage convertor with the 4th detector 4-2-4 output, this patent adopts this structure logarithmic converter to process and can obtain best result input signal, even can extend to-55dBm of input reference signal lower limit, described squaring cell 3 has two inputs and two outputs, described signal input port 1 one end ground connection, 3 one inputs of signal input port 1 other end and squaring cell are connected, between described signal input port 1 and squaring cell 3, be connected with the first switch 2-1, described the 6th electric capacity 7-6 one end ground connection, the 6th electric capacity 7-6 other end is connected with squaring cell 3 another inputs, between described the 6th electric capacity 7-6 and squaring cell 3, be connected with second switch 2-2, described the 3rd switch 2-3 one end is connected between the first switch 2-1 and squaring cell 3, described the 3rd switch 2-3 other end is connected between second switch 2-2 and squaring cell 3, 4 two inputs of 3 two outputs of described squaring cell and logarithmic converter are connected, described second electric capacity 7-2 one end and the 3rd electric capacity 7-3 one end are connected between 3 two outputs of squaring cell and 4 two inputs of logarithmic converter, the described second electric capacity 7-2 other end is connected with the 3rd electric capacity 7-3 other end and ground connection, 5 two inputs of 4 two outputs of described logarithmic converter and current-to-voltage convertor are connected, 4 two outputs of logarithmic converter are also connected with 4 two inputs of logarithmic converter, described the 4th switch 2-4 and the 5th switch 2-5 are also separately positioned on 4 two outputs of logarithmic converter and between 4 two inputs of logarithmic converter, 4 two outputs of logarithmic converter are also connected with the 5th electric capacity 7-5 one end with the 4th electric capacity 7-4 one end respectively, the 4th electric capacity 7-4 one end is connected with the 3rd electric capacity 7-3 one end with second electric capacity 7-2 one end with the 5th electric capacity 7-5 one end and ground connection, described current-to-voltage convertor 5 outputs are connected with buffer 6 inputs, described buffer 6 outputs are connected with first electric capacity 7-1 one end, described the first electric capacity 7-1 other end ground connection, this patent utilizes automatic zero adjustment to realize the inner amplifying circuit mismatch compensation of wave detector, thereby the input dynamic range lower limit of mean effective power wave detector is expanded.
As the wide dynamic range device for detecting power of radio frequency detection mode of this patent most preferred embodiment, concrete detecting step is as follows:
First opening the first switch 2-1 and second switch 2-2 closed the 3rd switch 2-3, the 4th switch 2-4 and the 5th switch 2-5 makes squaring cell 3 and logarithmic converter 4 and the second electric capacity 7-2, the 3rd electric capacity 7-3, the 4th electric capacity 7-4 and the 5th electric capacity 7-5 form closed circuit, after loop current is stable, input signal is stored in the 4th electric capacity 7-4 and the 5th electric capacity 7-5 through the device mismatch of squaring cell 3 and interior 4 amplifiers of logarithmic converter 4;
Then closed the first switch 2-1 and second switch 2-2 open the 3rd switch 2-3, the 4th switch 2-4 and the 5th switch 2-5, until system after normal power detected state, input signal after squaring cell 3 to logarithmic converter 4, output difference current, difference current becomes Voltage-output to buffer 6 through current-to-voltage convertor 5 current conversion, now in system, the mismatch of the upper storage of intrinsic mismatch and the 4th electric capacity 7-4 and the 5th electric capacity 7-5 is offset, utilize the method, can make the extend to-55dBm of input dynamic range lower limit of mean effective power wave detector.
The above, be only preferred embodiment of the present invention, is not the present invention to be done to the restriction of any other form, and according to any modification or equivalent variations that technical spirit of the present invention is done, still belongs to the present invention's scope required for protection.
Claims (4)
1. a wide dynamic range device for detecting power of radio frequency, comprise signal input port (1), 5 switches, squaring cell (3), logarithmic converter (4), current-to-voltage convertor (5), buffer (6) and 6 electric capacity, it is characterized in that: described squaring cell (3) has two inputs and two outputs, described signal input port (1) one end ground connection, (3) inputs of signal input port (1) other end and squaring cell are connected, between described signal input port (1) and squaring cell (3), be connected with the first switch (2-1), the 6th electric capacity (7-6) one end ground connection, the 6th electric capacity (7-6) other end is connected with another input of squaring cell (3), between described the 6th electric capacity (7-6) and squaring cell (3), be connected with second switch (2-2), the 3rd switch (2-3) one end is connected between the first switch (2-1) and squaring cell (3), described the 3rd switch (2-3) other end is connected between second switch (2-2) and squaring cell (3), (4) two inputs of (3) two outputs of described squaring cell and logarithmic converter are connected, the second electric capacity (7-2) one end and the 3rd electric capacity (7-3) one end are connected between (3) two outputs of squaring cell and (4) two inputs of logarithmic converter, described the second electric capacity (7-2) other end is connected with the 3rd electric capacity (7-3) other end and ground connection, (5) two inputs of (4) two outputs of described logarithmic converter and current-to-voltage convertor are connected, (4) two outputs of logarithmic converter are also connected with (4) two inputs of logarithmic converter, the 4th switch (2-4) and the 5th switch (2-5) are also separately positioned on (4) two outputs of logarithmic converter and between (4) two inputs of logarithmic converter, (4) two outputs of logarithmic converter are also connected with the 5th electric capacity (7-5) one end with the 4th electric capacity (7-4) one end respectively, the 4th electric capacity (7-4) one end is connected with the 3rd electric capacity (7-3) one end with the second electric capacity (7-2) one end with the 5th electric capacity (7-5) one end and ground connection, described current-to-voltage convertor (5) output is connected with buffer (6) input, described buffer (6) output is connected with the first electric capacity (7-1) one end, described the first electric capacity (7-1) other end ground connection.
2. a kind of wide dynamic range device for detecting power of radio frequency according to claim 1, is characterized in that: described logarithmic converter (4) comprises amplifier and detector, and described amplifier is 2-8, and described detector is 2-8.
3. a kind of wide dynamic range device for detecting power of radio frequency according to claim 2, it is characterized in that: in described logarithmic converter (4), have 4 amplifiers and 4 detectors, (3) two outputs of described squaring cell are connected with the first amplifier (4-1-1) input, described the first amplifier (4-1-1) output is connected with the first detector (4-2-1) input with the second amplifier (4-1-2) input, described the second amplifier (4-1-2) output is connected with the second detector (4-2-2) input with the 3rd amplifier (4-1-3) input, described the 3rd amplifier (4-1-3) output is connected with the 3rd detector (4-2-3) input with the 4th amplifier (4-1-4) input, described the 4th amplifier (4-1-4) output is connected with the 4th detector (4-2-4) input, described the first detector (4-2-1) output, the second detector (4-2-2) output, the 3rd detector (4-2-3) output is all connected with (5) two inputs of current-to-voltage convertor with the 4th detector (4-2-4) output.
4. wide dynamic range device for detecting power of radio frequency detection mode according to claim 1, concrete detecting step is as follows, it is characterized in that:
First opening closed the 3rd switch (2-3) of the first switch (2-1) and second switch (2-2), the 4th switch (2-4) and the 5th switch (2-5) makes squaring cell (3) and logarithmic converter (4) form closed circuit with the second electric capacity (7-2), the 3rd electric capacity (7-3), the 4th electric capacity (7-4) and the 5th electric capacity (7-5), after loop current is stable, input signal is stored in the 4th electric capacity (7-4) and the 5th electric capacity (7-5) through the device mismatch of squaring cell (3) and the interior amplifier of logarithmic converter (4);
Then closed the first switch (2-1) and second switch (2-2) are opened the 3rd switch (2-3), the 4th switch (2-4) and the 5th switch (2-5), until system after normal power detected state, input signal after squaring cell (3) to logarithmic converter (4), output difference current, difference current becomes Voltage-output to buffer (6) through current-to-voltage convertor (5) current conversion, and now in system, the mismatch of the upper storage of intrinsic mismatch and the 4th electric capacity (7-4) and the 5th electric capacity (7-5) is offset.
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| CN102707137A (en) * | 2012-07-03 | 2012-10-03 | 复旦大学 | Radio frequency power detection circuit |
| CN109799386B (en) * | 2017-11-17 | 2022-03-29 | 华为技术有限公司 | Power detector |
| KR102482193B1 (en) * | 2018-01-30 | 2022-12-27 | 삼성전기주식회사 | Control buffer circuit and radio frequency switch for dual mode operation |
| CN109525334B (en) * | 2018-12-19 | 2023-10-13 | 南京米乐为微电子科技有限公司 | Broadband logarithmic detector with high dynamic range |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1406358A (en) * | 2000-02-28 | 2003-03-26 | 模拟器件有限公司 | RMS-DC Converter with Dynamically Adjustable Scale Factor |
| CN101501975A (en) * | 2006-07-27 | 2009-08-05 | 线形技术公司 | Low power wide dynamic range rms-to-dc converter |
| CN101635943A (en) * | 2008-07-24 | 2010-01-27 | 中兴通讯股份有限公司 | Method and device for detecting broadband power |
| CN202309728U (en) * | 2011-11-15 | 2012-07-04 | 南京国睿嘉源微电子有限公司 | RF (Radio Frequency) power detection device with wide dynamic range |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7622981B2 (en) * | 2006-12-06 | 2009-11-24 | Linear Technology Corporation | Square cell having wide dynamic range and power detector implementing same |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1406358A (en) * | 2000-02-28 | 2003-03-26 | 模拟器件有限公司 | RMS-DC Converter with Dynamically Adjustable Scale Factor |
| CN101501975A (en) * | 2006-07-27 | 2009-08-05 | 线形技术公司 | Low power wide dynamic range rms-to-dc converter |
| CN101635943A (en) * | 2008-07-24 | 2010-01-27 | 中兴通讯股份有限公司 | Method and device for detecting broadband power |
| CN202309728U (en) * | 2011-11-15 | 2012-07-04 | 南京国睿嘉源微电子有限公司 | RF (Radio Frequency) power detection device with wide dynamic range |
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