CN105656576A - C-band power detector - Google Patents
C-band power detector Download PDFInfo
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- CN105656576A CN105656576A CN201511020389.7A CN201511020389A CN105656576A CN 105656576 A CN105656576 A CN 105656576A CN 201511020389 A CN201511020389 A CN 201511020389A CN 105656576 A CN105656576 A CN 105656576A
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- power detection
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- detection device
- signal
- data processing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
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Abstract
The invention discloses a high-precision C-band power detector. The high-precision C-band power detector comprises two-way power detection circuits and a digital control circuit, a box body is divided into an upper layer and a lower layer, the two-way power detection circuits which are isolated from each other are arranged at the upper layer, and the digital control circuit is arranged at the lower layer, wherein each power detection circuit comprises an isolator and a high-precision power detection chip, and the control circuit comprises a single chip microcomputer, a wave detector and a power supply circuit. The C-band power detector disclosed by the invention is precise in measurement, small in size and simple in structural design, and is a power detector which utilizes the single chip microcomputer to realize calibration and the power detection chips to realize detection, has two detection ports, enables the detection accuracy to be +/- 0.5 dB, and meanwhile has a temperature detection function.
Description
Technical field
A kind of C-band power detection device of Patent design of the present invention, can widespread use about in the communication system such as satellite communications and micro-wave communication.
Background technology
Power is the important parameter characterizing radiofrequency signal characteristic, along with the development of mobile communication technology, the RF signal power detector with pinpoint accuracy become radio communication measure in essential important devices. Radio frequency power meter is made up of power level detector and signal processing two portions usually. Power level detector is responsible for being converted to power signal voltage (electric current) signal, and signal processing primary responsibility converts electrical signals to performance number.
In radio frequency and microwave application, measurement of power occupies important role. For measuring the microwave power meter of high band power and become indispensable a kind of device.
Summary of the invention
It is an object of the invention to a kind of to measure accurately to design, volume is little, the simple power detection device of structure design, and patent of the present invention provides a kind of power detection device with two detection port utilizing micro-chip calibration and power detection chip detection. This power detection utensil have measure compared with accurately, volume is little, the simple feature of structure, have widely suitability, various C-band power amplifier can be applied to.
The design of the present invention is: a kind of C-band power detection device, comprises radiofrequency signal measuring unit 1, data processing unit 2, communications interface unit 3 and supplies electric unit 4; The radiofrequency signal collected is carried out A/D conversion and forms numerary signal by the radiofrequency signal measuring unit 1 in described power detection device, and numerary signal is sent to data processing unit 2; The numerary signal received is carried out computing by data processing unit 2, and the data that process obtains are sent to communications interface unit 3; The data received are sent by communications interface unit 3.
Wherein, radiofrequency signal measuring unit 1 comprises two-way power detection circuit, comprises radio frequency interface 5, parameter measurement circuit 6 and A/D and changes unit 7; Radio frequency interface 5 will receive radiofrequency signal and be sent to parameter measurement circuit 6; Parameter measurement circuit 6 radiofrequency signal is converted to simulating signal be sent to A/D change unit 7, A/D change unit 7 simulating signal is carried out A/D conversion formed numerary signal, numerary signal is sent to data processing unit 2 and carries out computing.
Wherein, described power detection device is calibrated by the Single Chip Microcomputer (SCM) program in data processing unit 2.
Wherein, metal case is divided into upper and lower two layers, and upper strata is radiofrequency signal measuring unit 1, and there are data processing unit 2, communications interface unit 3 in lower floor and supply electric unit 4.
Wherein, two-way power detection circuit cavity design is that isolation reaches effectiveness and avoids interfering with each other.
Adopt the useful effect that produces of technique scheme the present invention for:
The present invention adopts power detection chip and the calibration of micro-chip frequency-division section to make measuring accuracy reach �� 0.5dB, and application strings port communications achieves inquires about function fast in real time, adopts upper and lower surface that slotting installation circuit is reached miniaturization object easy for installation.
Accompanying drawing explanation
Fig. 1 is power detection device box body vertical view;
Fig. 2 is power detection device fish-eye view;
Fig. 3 is power detection device principle skeleton diagram;
Fig. 4 is the principle skeleton diagram of power detection device rf board measuring unit.
In figure: 1, upper and lower two layers of power detection device connects through holes, 2, the external interface of power detection, 3, radio frequency power input port, 4, shield retaining, 5, socket connect through hole.
Embodiment
Below in conjunction with the drawings and specific embodiments, patent of the present invention is described in further detail.
As shown in Figure 1, 2, patent of the present invention is a kind of C-band power detection device, is divided into upper and lower two layers of design, contributes to the accurate measurement of radio frequency signal, radiofrequency signal is input to lower circuit by SMA interface and shield retaining, and upper and lower two layers have the connector in through hole to connect. Power detection device externally has JL30 socket to connect. In figure: 1, upper and lower two layers of power detection device connects through holes, 2, the external interface of power detection, 3, radio frequency power input port, 4, shield retaining, 5, socket connect through hole.
Fig. 3 show the functional block diagram of power detection device, comprises radiofrequency signal measuring unit 1, data processing unit 2, communications interface unit 3 and supplies electric unit 4; Radiofrequency signal measuring unit 1 by collect radiofrequency signal carry out A/D conversion, the numerary signal of conversion is passed to data processing unit 2 process, data processing unit 2 there is Single Chip Microcomputer (SCM) program, the data received are carried out calibration calculations, be converted to performance number, power detection device is calibrated by Single Chip Microcomputer (SCM) program, the data that process obtains is sent by communications interface unit 3 afterwards; Wherein, data processing unit 2 also has the function of detection real time temperature.
Fig. 4 is the principle skeleton diagram of power detection device rf board measuring unit, has two-way power detection circuit, and two-way power detection circuit cavity design is that isolation reaches effectiveness and avoids interfering with each other; Comprise radio frequency interface 5, parameter measurement circuit 6 and A/D change unit 7 radio frequency interface 5 and will receive radiofrequency signal and be sent to parameter measurement circuit 6; Parameter measurement circuit 6 radiofrequency signal is converted to simulating signal be sent to A/D change unit 7, A/D change unit 7 simulating signal is carried out A/D conversion formed numerary signal, numerary signal is sent to data processing unit 2 and carries out computing.
In scm software design, for measuring the performance number of each frequency more accurately, 4.4-5GHz is divided into 6 frequency ranges, each frequency range carries out Measurement and calibration respectively, application linear function calibration slope, also applies the function that serial ports interrupts reaching real-time Communication for Power enquiry frequency in program.
In structure design, for miniaturized structure is convenient to install, this patent upper and lower two portions of design point, upper strata is radiofrequency signal measuring unit 1, and there are data processing unit 2, communications interface unit 3 in lower floor and supply electric unit 4.
Claims (5)
1. a C-band power detection device, it is characterised in that: comprise radiofrequency signal measuring unit (1), data processing unit (2), communications interface unit (3) and supply electric unit (4); The radiofrequency signal collected is carried out A/D conversion and forms numerary signal by the radiofrequency signal measuring unit (1) in described power detection device, and numerary signal is sent to data processing unit (2); The numerary signal received is carried out calibration computing by data processing unit (2), and the data that process obtains are sent to communications interface unit (3); The data received are sent by communications interface unit (3).
2. C-band power detection device according to claim 1, it is characterized in that: radiofrequency signal measuring unit (1) comprises two-way power detection circuit, power detection circuit comprises radio frequency interface (5), parameter measurement circuit (6) and A/D and changes unit (7); Radio frequency interface (5) will receive radiofrequency signal and be sent to parameter measurement circuit (6); Radiofrequency signal is converted to simulating signal and is sent to A/D conversion unit (7) by parameter measurement circuit (6), A/D changes unit (7) and simulating signal carries out A/D conversion formation numerary signal, numerary signal is sent to data processing unit (2) and carries out computing.
3. C-band power detection device according to claim 1, it is characterised in that: described power detection device is calibrated by the Single Chip Microcomputer (SCM) program in data processing unit (2).
4. C-band power detection device according to claim 1, it is characterized in that: metal case is divided into upper and lower two layers, upper strata is radiofrequency signal measuring unit (1), and lower floor is data processing unit (2), communications interface unit (3) and supplies electric unit (4).
5. C-band power detection device according to claim 2, it is characterised in that: two-way power detection circuit cavity design is isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020389.7A CN105656576B (en) | 2015-12-29 | 2015-12-29 | A kind of C-band power detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020389.7A CN105656576B (en) | 2015-12-29 | 2015-12-29 | A kind of C-band power detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105656576A true CN105656576A (en) | 2016-06-08 |
| CN105656576B CN105656576B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511020389.7A Active CN105656576B (en) | 2015-12-29 | 2015-12-29 | A kind of C-band power detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353585A (en) * | 2016-10-20 | 2017-01-25 | 成都前锋电子仪器有限责任公司 | Data processing circuit used for radio frequency power reflectometer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0549479A1 (en) * | 1991-12-23 | 1993-06-30 | ENI, DEPARTMENT OF ASTEC AMERICA, Inc. | Digitally assisted power levelling circuit for RF power generator |
| CN102026015A (en) * | 2009-09-21 | 2011-04-20 | 董亮 | Radio frequency power detection device |
| CN201821320U (en) * | 2010-09-29 | 2011-05-04 | 深圳国人通信有限公司 | Frequency conversion module of overlay end of GSM900 digital optical fiber direct amplifier station |
-
2015
- 2015-12-29 CN CN201511020389.7A patent/CN105656576B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0549479A1 (en) * | 1991-12-23 | 1993-06-30 | ENI, DEPARTMENT OF ASTEC AMERICA, Inc. | Digitally assisted power levelling circuit for RF power generator |
| EP0549479B1 (en) * | 1991-12-23 | 1996-08-28 | ENI, DEPARTMENT OF ASTEC AMERICA, Inc. | Digitally assisted power levelling circuit for RF power generator |
| CN102026015A (en) * | 2009-09-21 | 2011-04-20 | 董亮 | Radio frequency power detection device |
| CN201821320U (en) * | 2010-09-29 | 2011-05-04 | 深圳国人通信有限公司 | Frequency conversion module of overlay end of GSM900 digital optical fiber direct amplifier station |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353585A (en) * | 2016-10-20 | 2017-01-25 | 成都前锋电子仪器有限责任公司 | Data processing circuit used for radio frequency power reflectometer |
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| CN105656576B (en) | 2018-06-19 |
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