CN206821030U - Standing wave analysis instrument - Google Patents
Standing wave analysis instrument Download PDFInfo
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- CN206821030U CN206821030U CN201621327458.9U CN201621327458U CN206821030U CN 206821030 U CN206821030 U CN 206821030U CN 201621327458 U CN201621327458 U CN 201621327458U CN 206821030 U CN206821030 U CN 206821030U
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Abstract
The utility model discloses a kind of standing wave analysis instrument, including micro control unit, Clock Managing Unit, frequency synthesizer, AD conversion unit, power amplifier and coupler, wherein, the output end of frequency synthesizer branches into two-way, it is connected all the way through AD conversion unit with micro control unit, another way is sequentially connected in series power amplifier and coupler, another termination AD conversion unit of coupler.During work, frequency signal directly feeds back to micro control unit sampling after AD is converted all the way caused by frequency synthesizer；Another way frequency signal is amplified successively, coupling is sent to measured object, the signal that tested thing is transmitted back to is coupled to after AD conversion unit carries out AD conversion and gives micro control unit sampling, and micro control unit finally obtains standing-wave ratio state of the measured object in the range of certain frequency by the two paths of signals of its collection.The utility model uses better simply circuit realiration standing wave test function, and engineering site is easy to carry, and test is simple.
Description
Technical field
A kind of standing-wave ratio analytical technology is the utility model is related to, is used for what indoor distributed system was tested more particularly, to a kind of
Simple standing wave analysis instrument.
Background technology
With the fast development of 4G networks, indoor distributed system construction rises year by year, and has and catch up with and surpass becoming for macrocell base stations
Gesture.During compartment system is built indoors, the design of standing-wave ratio is extremely important.If system standing-wave ratio is not up to standard, interior will be caused
Compartment system call drop, serious will cause indoor distribution no signal.
Standing-wave ratio (VSWR) refers in the radio communication, the impedance mismatch or antenna of antenna and feeder line and emitter
Impedance mismatch, high-frequency energy will occur reflection and turn back, and converge generation standing wave with the part interference of advance.In order to characterize and
The stationary wave characteristic in antenna system is measured, that is, the situation of forward wave and back wave in antenna, people establish " standing-wave ratio "
This concept.
Standing-wave ratio is the reflectance factor of reflection system or single part, to consider the reflection power situation of system.Excessively
Reflection power can reduce system effectiveness, increase machine utilization.The energy reflected is more, and the energy launched is fewer.
However, as indoor distributed system builds more and more, the standing wave of cable, joint, antenna in indoor distributed system
Than can directly affect communication network quality.Existing standing wave analysis instrument realizes complicated, expensive, scene carrying inconvenience.
Utility model content
The defects of the purpose of this utility model is to overcome prior art, there is provided a kind of standing wave analysis instrument, provide one kind
The circuit of standing wave test function can more easily be realized.
To achieve the above object, the utility model proposes following technical scheme：A kind of standing wave analysis instrument, including micro-control list
Member, Clock Managing Unit, frequency synthesizer, AD conversion unit, power amplifier and coupler, the micro control unit and modulus
Converting unit is connected, and the Clock Managing Unit is connected with frequency synthesizer and AD conversion unit, the frequency synthesizer
Output end branch into two-way, be directly connected all the way with the AD conversion unit, another way is sequentially connected in series the power amplification
Device and coupler, another termination AD conversion unit of the coupler, the frequency synthesizer generation frequency signal, one
Frequency signal described in road feeds back to micro control unit sampling after AD conversion unit carries out AD conversion, obtains the first reflected signal；
Frequency signal described in another way is sent to measured object through power amplifier, coupler amplification, coupling successively, and tested thing is transmitted back to
Signal by coupler be coupled to AD conversion unit carry out AD conversion after give micro control unit sample, obtain the second reflection letter
Number, standing-wave ratio state of the measured object in the range of certain frequency is obtained by first, second reflected signal.
Preferably, the AD conversion unit includes the first AD conversion unit and the second AD conversion unit, and described
The output end of one AD conversion unit and the frequency synthesizer is joined directly together；Second AD conversion unit and coupler phase
Even.
Preferably, the frequency range of the frequency signal caused by the frequency synthesizer is 0.4~4GHz, transmission power
For 0~10dBm.
Preferably, the standing wave analysis instrument obtains measured object in 0.4~4GHz frequencies by first, second reflected signal
In the range of standing-wave ratio state.
Preferably, the micro control unit and Clock Managing Unit also respectively connect a crystal oscillator.
Preferably, the micro control unit is also connected with a memory.
Preferably, the memory is eprom memory.
Preferably, the standing wave analysis instrument also includes voltage regulation unit, the voltage regulation unit and micro control unit, Clock management list
Member, frequency synthesizer, AD conversion unit are connected.
Preferably, the micro control unit, Clock Managing Unit, frequency synthesizer, AD conversion unit are respectively linear by one
Voltage-stablizer is connected with the voltage regulation unit.
Preferably, the linear voltage regulator is LDO linear voltage regulators.
Compared with prior art, the utility model tests work(by circuit modification using better simply circuit realiration standing wave
Can, engineering site is easy to carry, and test is simple.
Brief description of the drawings
Fig. 1 is the circuit diagram of the utility model standing wave analysis instrument.
Reference：
1st, Clock Managing Unit, 2, power amplifier, 3, coupler, 4, voltage regulation unit, 5, micro control unit, 6, frequency synthesis
Device, the crystal oscillator of the 7, first crystal oscillator/second, 8, ADC1,9, ADC2,10, LDO linear voltage regulators, 11, EPROM.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical scheme of the utility model embodiment is carried out clear, complete
Description.
A kind of standing wave analysis instrument disclosed in the utility model, is mainly used in entering moving standing wave in mobile communication antenna feed system
Than investigation.
With reference to shown in figure 1, standing wave analysis instrument described in the utility model embodiment includes information source, Clock Managing Unit 1, modulus
Converting unit (ADC), power amplifier (PA) 2, coupler 3 and voltage regulation unit 4, information source is mainly by micro control unit (MCU) 5, frequency
Rate synthesizer 6 and peripheral circuit composition, predominantly standing wave analysis instrument provide driving source.
Wherein, micro control unit 5 is connected with AD conversion unit, is on the one hand used to provide information source, is on the other hand used for mould
The signal that number converting unit is fed back to is sampled.In the present embodiment, it is erasable that micro control unit 5 is also connected with one first crystal oscillator 7 and one
Programmable read only memory (EPROM) 11 is write, the first crystal oscillator 7 is used to provide the clock frequency needed for micro control unit 5；EPROM with
Micro control unit 5 is bi-directionally connected, and for storing related data for micro control unit 5, and is easy to the calling at any time of micro control unit 5.
Clock Managing Unit 1 is connected with frequency synthesizer 6 and AD conversion unit, predominantly frequency synthesizer 6 and mould
Number converting unit provides reference source.In the present embodiment, Clock Managing Unit 1 is also connected with one second crystal oscillator 7, and the second crystal oscillator 7 is used for
Clock frequency needed for Clock Managing Unit 1 is provided.
AD conversion unit mainly realizes that the analog signal that will be collected is converted into data signal.Specifically, the present embodiment
In, AD conversion unit includes the first AD conversion unit (ADC1) 8 and the second AD conversion unit (ADC2) 9, the first modulus
Converting unit 8 and the output end of frequency synthesizer 6 are joined directly together, and are connected with micro control unit 5 and Clock Managing Unit 1.With
It is to receive the reference source signal that Clock Managing Unit 1 is sent that Clock Managing Unit 1, which is connected, with frequency synthesizer 6 and micro control unit 5
It is micro- for will be sent to after the signal directly exported by frequency synthesizer 6 (i.e. backscattered signal) progress analog-to-digital conversion to be connected
Sampled in control unit 5.Second AD conversion unit 9 is connected with coupler 3, and with micro control unit 5 and Clock Managing Unit 1
It is connected.It is that it is equally to be used to receive clock pipe that it is connected with Clock Managing Unit 1 with the identical of the first AD conversion unit 8
The reference source signal that reason unit 1 is sent, still, it is connected with coupler 3, is the signal for will be fed back to by coupler 3
It is sent in micro control unit 5 and is sampled after (i.e. forward reflection signal) progress analog-to-digital conversion.Micro control unit 5 is by collecting
Backscattered signal and forward reflection signal can obtain standing-wave ratio state of the measured object in the range of certain frequency.
Frequency synthesizer 6 is mainly for generation of the frequency signal of certain frequency scope and certain transmission power scope, this reality
Apply in example, the frequency range of frequency signal caused by frequency synthesizer 6 is 0.4~4GHz, and transmission power is 0~10dBm.Frequency
The one end of synthesizer 6 is connected with Clock Managing Unit 1, receives the reference source signal that Clock Managing Unit 1 is sent, its other end is (i.e.
Output end) two-way is branched into, the first AD conversion unit 8 is directly connect all the way, and by caused frequency signal, (i.e. back reflection is believed
Number) directly feed back to the first AD conversion unit 8；Another way is sequentially connected in series power amplifier 2 and coupler 3, coupler 3 connect by
Thing is surveyed, after caused frequency signal is amplified by power amplifier 2, then measured object is sent to by coupler 3.
Power amplifier 2 one terminates frequency synthesizer 6, another termination coupler 3, is mainly used in producing frequency synthesizer 6
Raw frequency signal carries out power amplification.
Coupler 3 is connected with power amplifier 2, the second AD conversion unit 9 and measured object, and being on the one hand used for will be through work(
Frequency signal after rate amplifier 2 amplifies is coupled to measured object, and the signal for being on the other hand used to be transmitted back to by measured object is (before i.e.
To reflected signal) it is coupled to the second AD conversion unit 9.
Voltage regulation unit 4 is connected with micro control unit 5, Clock Managing Unit 1, frequency synthesizer 6, AD conversion unit.This
In embodiment, voltage regulation unit 4 passes through LDO linear voltage regulators 10 and micro control unit 5, Clock Managing Unit 1, frequency synthesizer 6, mould
Number converting unit is connected, and the corresponding LDO linear voltage regulator 10 of each unit, i.e. micro control unit 5, Clock Managing Unit 1, frequency
Rate synthesizer 6, AD conversion unit are various to be connected by a LDO linear voltage regulators 10 with voltage regulation unit 4.Voltage regulation unit 4 is main
These cell mesh are protected, them is not destroyed because of pulse, also function to adjustment, a work for transformation
With preventing excessive voltage Burnout circuit or cause some dangerous destructions.
Operation principle of the present utility model is：Frequency signal caused by frequency synthesizer 6, all the way signal feed back to ADC1
(backscattered signal) 8 gives the ARM chip sampled datas in micro control unit 5 after AD is converted；Another way signal passes through work(
Rate amplifier 2 amplifies, is sent to measured object by the coupling of coupler 3, and the signal that tested thing is transmitted back to is closed by coupler coupling 3
ARM chip sampled datas are given to ADC2 (forward reflection signal) 9.So micro control unit 5 is believed by the back reflection collected
Number and forward reflection signal can obtain standing-wave ratio state of the measured object in 0.4~4GHz frequency ranges.
The utility model is by circuit modification, and using better simply circuit realiration standing wave test function, engineering site carries
Convenient, test is simple.
Technology contents and technical characteristic of the present utility model are had revealed that as above, but those skilled in the art still may be used
A variety of replacements and modification without departing substantially from the utility model spirit can be made based on teaching of the present utility model and announcement, therefore, this
Utility model protection scope should be not limited to the content disclosed in embodiment, and should include various without departing substantially from replacement of the present utility model
And modification, and covered by present patent application claim.
Claims (9)
1. a kind of standing wave analysis instrument, it is characterised in that it includes micro control unit, Clock Managing Unit, frequency synthesizer, modulus and turned
Unit, power amplifier and coupler are changed, the micro control unit is connected with AD conversion unit, the Clock Managing Unit and frequency
Rate synthesizer is connected with AD conversion unit, and the output end of the frequency synthesizer branches into two-way, all the way directly with it is described
AD conversion unit is connected, and another way is sequentially connected in series the power amplifier and coupler, another termination institute of the coupler
State AD conversion unit.
2. standing wave analysis instrument according to claim 1, it is characterised in that the AD conversion unit turns including the first modulus
Change unit and the second AD conversion unit, the direct phase of output end of first AD conversion unit and the frequency synthesizer
Even；Second AD conversion unit is connected with coupler.
3. standing wave analysis instrument according to claim 1, it is characterised in that the frequency letter caused by the frequency synthesizer
Number frequency range be 0.4~4GHz, transmission power is 0~10dBm.
4. standing wave analysis instrument according to claim 1, it is characterised in that the micro control unit and Clock Managing Unit are also each
An even crystal oscillator.
5. standing wave analysis instrument according to claim 4, it is characterised in that the micro control unit is also connected with a memory.
6. standing wave analysis instrument according to claim 5, it is characterised in that the memory is eprom memory.
7. standing wave analysis instrument according to claim 1, it is characterised in that the standing wave analysis instrument also includes voltage regulation unit,
The voltage regulation unit is connected with micro control unit, Clock Managing Unit, frequency synthesizer, AD conversion unit.
8. standing wave analysis instrument according to claim 7, it is characterised in that the micro control unit, Clock Managing Unit, frequency
Synthesizer, AD conversion unit are respectively connected by a linear voltage regulator with the voltage regulation unit.
9. standing wave analysis instrument according to claim 8, it is characterised in that the linear voltage regulator is LDO linear voltage stabilizations
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621327458.9U CN206821030U (en) | 2016-12-06 | 2016-12-06 | Standing wave analysis instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621327458.9U CN206821030U (en) | 2016-12-06 | 2016-12-06 | Standing wave analysis instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206821030U true CN206821030U (en) | 2017-12-29 |
Family
ID=60750524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621327458.9U Active CN206821030U (en) | 2016-12-06 | 2016-12-06 | Standing wave analysis instrument |
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| Country | Link |
|---|---|
| CN (1) | CN206821030U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156612A (en) * | 2016-12-06 | 2018-06-12 | 罗森伯格（上海）通信技术有限公司 | Standing wave analysis instrument |
-
2016
- 2016-12-06 CN CN201621327458.9U patent/CN206821030U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156612A (en) * | 2016-12-06 | 2018-06-12 | 罗森伯格（上海）通信技术有限公司 | Standing wave analysis instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220317 Address after: 215345 No. 6 Shen'an Road, Dianshan Lake Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Rosenberg Technology Co.,Ltd. Address before: 201707 area C, B2 plant, No. 303, Xinke Road, Qingpu District, Shanghai Patentee before: ROSENBERGER (SHANGHAI) TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 215300 No.6 Shen'an Road, Dianshanhu Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: ProLogis Communication Technology (Suzhou) Co.,Ltd. Address before: 215345 No. 6 Shen'an Road, Dianshan Lake Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Rosenberg Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address |