CN206370837U - A kind of radio frequency environment self-checking device - Google Patents
A kind of radio frequency environment self-checking device Download PDFInfo
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- CN206370837U CN206370837U CN201621383399.7U CN201621383399U CN206370837U CN 206370837 U CN206370837 U CN 206370837U CN 201621383399 U CN201621383399 U CN 201621383399U CN 206370837 U CN206370837 U CN 206370837U
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Abstract
The utility model discloses a kind of radio frequency environment self-checking device, including casing, inside provided with throwing coaxial mechanical RF switch module and DPDT mechanical RF switch module power module, main control module, hilted broadsword more；Lateral wall sets display module, external interface module, instrumentation tap, radio frequency environment interface；Coaxial mechanical RF switch module being thrown radio frequency environment interface and hilted broadsword to be connected more；Coaxial mechanical RF switch module is thrown hilted broadsword to be connected with DPDT mechanical RF switch module by radio frequency line more；Throw coaxial mechanical RF switch module more hilted broadsword and DPDT mechanical RF switch module is connected with main control module respectively；Instrumentation tap is connected with DPDT mechanical RF switch module.The utility model by controlling to throw hilted broadsword the switch motion of coaxial mechanical RF switch module and DPDT mechanical RF switch module more, with simple to operate, and it is convenient to safeguard, the features such as scalability and high versatility, and especially cost price is low, is adapted to industrialization.
Description
Technical field
The utility model belongs to communication technical field, and in particular to a kind of radio frequency environment self-checking device.
Background technology
With the development of wireless communication technique, the function more sophisticated of communication equipment, for the radio frequency of wireless communication system
Test it is also proposed higher requirement, and particularly with 4G, 5G communication system, RF index quantity is more, and index request is high, tests
Need to build multiple test environments in journey.And number of antennas is from two antennas to four antennas, eight antennas, or even increase 64 days
More than line, the specific performance performance in test process every time under wireless channel environment requires higher.Weigh and wirelessly set at present
The standby test system under channel circumstance, basic by the way of baseband channel simulation, emphasis characterizes terminal and run in systems
And the performance such as handover between cells.This baseband channel simulated testing system, it is specific that channel mould is increased in base band using digital algorithm
Type, passes through mixed analog channel circumstance.
Existing baseband channel simulated testing system, due to needing to increase complicated channel simulation algorithm, to base band software and hardware
Requirement it is very high, the cost brought is very expensive, and because port number is limited to Baseband algorithms, it is impossible to provide enough ports
The test limitation that the difference come between itself port of accurate characterization communication equipment is brought for influence of system etc..
The content of the invention
The purpose of this utility model is to provide a kind of radio frequency environment self-checking device, for realizing that wireless telecommunications radio frequency is surveyed
The auto-calibration in test ring border, is particularly suitable for the calibration of wireless communication RF automatic test environment, reduces calibration process
Workload, reduce destruction of the calibration process to cable and environment；The utility model framework is simple simultaneously, can be flexibly according to test
The requirement of environment customizes input/output port, measures accurate, highly reliable.
To achieve the above object of the invention, the technical solution adopted in the utility model is：A kind of automatic calibration cartridge of radio frequency environment
Put, including casing；The box house being thrown provided with power module, main control module, hilted broadsword more coaxial mechanical RF switch module and
DPDT mechanical RF switch module；The casing lateral wall set display module, external interface module, instrumentation tap and
Radio frequency environment interface；Radio frequency environment interface is connected more by throwing coaxial mechanical RF switch module radio frequency line and the hilted broadsword；Institute
State and throw coaxial mechanical RF switch module hilted broadsword more and be connected by radio frequency line with the DPDT mechanical RF switch module；Institute
State and throw coaxial mechanical RF switch module hilted broadsword and DPDT mechanical RF switch module is connected with main control module respectively more；Instrument
Table interface is connected by radio frequency line with the DPDT mechanical RF switch module.
In above-mentioned technical proposal, the power module is substantially carried out voltage transformation, is connected with main control module, display module,
Corresponding operating voltage is provided, connected mode is prior art.
In above-mentioned technical proposal, the display module is calibrating installation display information and the device for receiving information, is generally
Man-machine interface；It is preferred that, the man-machine interface includes LCDs and keyboard.Display module passes through custom circuit and master control mould
Block is connected, and the switching information of port, the system information of calibrating installation can be set as between IP, time etc. and display present port
The information such as differential loss.
In above-mentioned technical proposal, coaxial mechanical RF switch module is thrown the hilted broadsword including throwing coaxial machine two hilted broadswords more more
Tool RF switch, each switch carries communication interface, is electrical connected by communication interface with main control module, can receive control letter
Breath carries out the setting of switching channels；Two switch rooms are connected using radio frequency line.
In above-mentioned technical proposal, the DPDT mechanical RF switch module is opened including a DPDT mechanical RF
Close, switch carries communication interface, is electrical connected by communication interface with main control module, control information can be received and carry out switching channels
Setting, to realize that the inside of instrument port is preferable.
In above-mentioned technical proposal, the external interface module includes Ethernet interface, RS232 interfaces, is normally at after casing
Sideways, the rear board part of casing can be fixed by screws in, is connected by conventional electrical circuit with main control module.It is preferred that
, device is provided with the radiating module of ventilating opening and electric fan is included, so as to internal components heat dissipation ventilation；Power module is to electronic
Fan is powered, and electric fan is typically mounted at wall box.
In the utility model, main control module has logic control function, main to include one group of MCU process chip and storage electricity
Road, is connected with the external interface module, display module；Described main control module by throwing coaxial cable and described hilted broadsword more
Mechanical RF switch module is connected with DPDT mechanical RF switch module, is provided according to external interface module, display module
Switching information, throwing the action of coaxial mechanical RF switch module and DPDT mechanical RF switch module control hilted broadsword more.
Those skilled in the art as needed can be with main control module purchased in market, or carries out on the basis of existing main control module simple designs.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art:
It is that radio frequency environment is calibrated and is automatically 1. the utility model makes public for the first time a kind of radio frequency environment self-checking device
System, system architecture is reasonable in design, and functional circuit is realized preferable, and systematic function is excellent, stably；It is particularly suitable for radio frequency testing ring
The automatic calibration of border line loss.
2. radio frequency environment auto-calibration device disclosed in the utility model is switched more by throwing coaxial mechanical RF hilted broadsword
Module and DPDT mechanical RF switch module realize the connection of test environment input port, delivery outlet and test instrumentation, device
Have the advantages that to bear that power is big, flatness is high, Insertion Loss is small, applied widely.
In 3. radio frequency environment self-checking device disclosed in the utility model can be carried out to two ports for connecting instrument
Portion switches, and realizes the two-way calibration of tested environment line loss；It can be not only vector network analyzer to calibrate the instrument used,
Frequency spectrograph plus signal source can be used, by the control to DPDT mechanical RF switch module, the realization pair inside device
The switching of two instrument.
4. radio frequency environment self-checking device disclosed in the utility model can be measured to itself differential loss, school is realized
The full-automation of quasi- process；The radio frequency interconnected in coaxial mechanical RF switch module between two single pole multiple throws is thrown hilted broadsword more
Line, realizes the loopback of device itself, and the line loss of all passages of complete machine is can obtain by measuring the line loss of loop-back path；Device
Need to ensure the different +/- 0.1dB of interchannel differential loss error when mounted.
Brief description of the drawings
Fig. 1 is a kind of structural representation of radio frequency environment auto-calibration device of embodiment；
Fig. 2 is a kind of backsight structural representation of radio frequency environment auto-calibration device of embodiment；
Wherein：Casing 1, power module 2, main control module 3, DPDT mechanical RF switch module 4, LCDs 5,
Keyboard 6, the throw switch 7 of hilted broadsword five, the throw switch 8 of hilted broadsword nine, Ethernet interface 9, RS232 interfaces 10, instrumentation tap 11, radio frequency environment connect
Mouth 12, ventilating opening 13, electric fan 14, external power source interface 15.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
Embodiment one
Referring to accompanying drawing 1-2, one kind is used for radio frequency testing auto-calibration device, including casing 1；Box house is provided with power supply
Module 2, main control module 3, coaxial mechanical RF switch module and DPDT mechanical RF switch module 4, radiating being thrown hilted broadsword more
Module；Casing lateral wall sets display module, external interface module；Display module is fixed on the front-facing portion of casing, and leads to
Cross electronic circuit with main control module to be connected, be man-machine interface, including LCDs 5 and keyboard 6；DPDT mechanical RF is opened
It is double-point double-throw switch to close module, by radio frequency line respectively with hilted broadsword more throw coaxial mechanical RF switch module, instrument and connect
Mouth is connected, and is electrically connected with main control module, and be fixed by screws in box house；Coaxial mechanical RF switching molding is thrown hilted broadsword more
Block is a throw switch 7 of hilted broadsword five and a throw switch 8 of hilted broadsword nine, is switched respectively with DPDT mechanical RF by radio frequency line
Module, radio frequency environment interface are connected, and are connected between the throw switch of hilted broadsword five and a throw switch of hilted broadsword nine using radio frequency line, with master control
Module is electrically connected with, and is fixed by screws in box house；External interface module includes Ethernet interface 9, RS232 interfaces 10,
The rear board part of casing is fixed by screws in, is connected by electronic circuit with main control module；Casing lateral wall sets instrument
Interface 11 and radio frequency environment interface 12（Wherein radio frequency environment input port eight, delivery outlet four, all using same sign,
Only mark at one）, remaining element matches conventional connection therewith；Radiating module includes ventilating opening 13 and electric fan 14, power supply mould
Block is powered to electric fan, and electric fan is arranged on wall box, so as to internal components heat dissipation ventilation；Main control module is main bag
The circuit board of MCU processors and memory device is included, box house is fixed by screws in, according to external interface module, display mould
Block provide switch control information, control hilted broadsword more throw coaxial mechanical RF switch module and DPDT mechanical RF switching molding
The switch motion of block；Power module is conventional voltage translation circuit, with external power source interface 15, is fixed by screws in casing
Inside, being connected by electronic circuit with main control module, display module, there is provided corresponding operating voltage.
Instrumentation tap and radio frequency environment interface by radio frequency line respectively with DPDT mechanical RF switch module and list
Throwing coaxial mechanical RF switch module knife to be connected, wherein the instrumentation tap connection DPDT mechanical RF of connecting test instrument more
1 and 4 radio frequencies of switch module mouthful, throw coaxial mechanical RF switch module hilted broadsword more and pass through radio frequency line and DPDT mechanical RF
2 and 3 radio frequencies mouthful of switch module are connected, and coaxial mechanical RF switch module and DPDT mechanical RF switching molding are thrown hilted broadsword more
Block is connected with main control module respectively, and display module, external interface module are connected by circuit with main control module respectively, each module it
Between electric connection and data wire be connected as this area routinely connection, in order to which accompanying drawing understands succinctly, some conventional connections and
Conventional mounting means is not shown；While in order to clearly show that casing protecgulum is removed in box inner structure, accompanying drawing 1, is
Figure below, is overall structure during practical application.
The utility model connects frequency spectrograph and signal source carries out environment calibration, and frequency spectrograph and signal source distinguish attachment means
Two instrument ports, the output interface connection throw switch of hilted broadsword five of user environment, the input interface connection hilted broadsword nine of user environment
Throw switch, user travels through each by local touch-screen or the throw switch of automatic program control hilted broadsword five and the throw switch of hilted broadsword nine
Combination, measurement finishes rear device and automatically controls double-point double-throw switch switching, realizes that user environment is reversely calibrated；Connected vector
Network Analyzer carries out environment calibration, and two instrument ports of attachment means are distinguished in two ports of vector network analyzer, use
The output interface connection throw switch of hilted broadsword five of family environment, the input interface connection throw switch of hilted broadsword nine of user environment, user passes through
Local touch-screen or the throw switch of automatic program control hilted broadsword five and the throw switch of hilted broadsword nine travel through each combination, Yong Hutong
Cross control vector network analyzer and complete S21 and S12 measurements, realize forward and reverse calibration of user environment.
Embodiment two
A kind of auto-calibration device of radio frequency testing, including casing, inside provided with power module, main control module, two
The throw switch of hilted broadsword nine and double-point double-throw switch, a radiating module；Casing lateral wall sets display module, external interface module
（Too network interface, RS232 interfaces）, instrumentation tap and radio frequency environment interface；Display module is fixed on the front-facing portion of casing, and
It is connected by electronic circuit with main control module, is man-machine interface, including LCDs and keyboard；The throw switch of hilted broadsword nine and double-pole
Commutator input and output are respectively connected with by communication interface radio frequency sub-miniature A connector by radio frequency line, are electrically connected with main control module
Connect, and be fixed by screws in box house；In radio frequency environment interface, radio frequency environment input port eight, delivery outlet four, remaining
Element matches conventional connection therewith；Radiating module includes ventilating opening and electric fan；Main control module is mainly including MCU processor
With the circuit board of memory device, box house is fixed by screws in, the switch provided according to external interface module, display module
Control information, the switch that coaxial mechanical RF switch module and DPDT mechanical RF switch module are thrown control hilted broadsword is moved more
Make；Power module is conventional voltage translation circuit, with external power source interface, is fixed by screws in box house, passes through electricity
Sub-line road is connected with main control module, display module, and there is provided corresponding operating voltage.
Instrumentation tap and radio frequency environment interface by radio frequency line respectively with DPDT mechanical RF switch module and list
Throwing coaxial mechanical RF switch module knife to be connected, wherein the instrumentation tap connection DPDT mechanical RF of connecting test instrument more
1 and 4 radio frequencies of switch module mouthful, throw coaxial mechanical RF switch module hilted broadsword more and pass through radio frequency line and DPDT mechanical RF
2 and 3 radio frequencies mouthful of switch module are connected, and coaxial mechanical RF switch module and DPDT mechanical RF switching molding are thrown hilted broadsword more
Block is connected with main control module respectively, and display module, external interface module are connected by circuit with main control module respectively, each module it
Between electric connection and data wire be connected as this area routinely connection.
During concrete application, connection frequency spectrograph and signal source carry out environment calibration, frequency spectrograph and signal source difference attachment means
Two instrument ports, the output interface of user environment connects one of throw switch of hilted broadsword nine, the input interface of user environment
Another throw switch of hilted broadsword nine is connected, user travels through each by local touch-screen or the throw switch of automatic program control hilted broadsword nine
Combination is planted, measurement finishes rear device and automatically controls double-point double-throw switch switching, realizes that user environment is reversely calibrated；Connection arrow
Measure Network Analyzer and carry out environment calibration, two instrument ports of attachment means are distinguished in two ports of vector network analyzer,
The output interface of user environment connects one of throw switch of hilted broadsword nine, and the input interface of user environment connects another hilted broadsword nine
Throw switch, user travels through each combination, user by local touch-screen or the throw switch of automatic program control hilted broadsword nine
By controlling vector network analyzer to complete S21 and S12 measurements, forward and reverse calibration of user environment is realized.
The utility model realizes the radio frequency environment self-checking device of multi-channel input mouthful multiple-channel output port, this area
Technical staff can write control program, communicated by Ethernet interface, RS232 interfaces according to the demand of radio frequency testing environment,
By controlling to throw hilted broadsword the switch motion of coaxial mechanical RF switch module and DPDT mechanical RF switch module, having more
Simple to operate, it is convenient to safeguard, the features such as scalability and high versatility, and especially cost price is low, is adapted to industrialization.
Claims (10)
1. a kind of radio frequency environment self-checking device, it is characterised in that：The radio frequency environment self-checking device includes casing；Institute
State box house provided with power module, main control module, throwing coaxial mechanical RF switch module hilted broadsword and DPDT machinery is penetrated more
Frequency switch module；The casing lateral wall sets display module, external interface module, instrumentation tap and radio frequency environment interface；
Radio frequency environment interface is connected more by throwing coaxial mechanical RF switch module radio frequency line and the hilted broadsword；Throwing coaxial the hilted broadsword more
Mechanical RF switch module is connected by radio frequency line with the DPDT mechanical RF switch module；Throwing coaxial the hilted broadsword more
Mechanical RF switch module and DPDT mechanical RF switch module are connected with main control module respectively；Instrumentation tap passes through radio frequency
Line is connected with the DPDT mechanical RF switch module.
2. radio frequency environment self-checking device according to claim 1, it is characterised in that：The display module, external interface
Module is connected by circuit with main control module respectively.
3. radio frequency environment self-checking device according to claim 1, it is characterised in that：The display module is man-machine boundary
Face.
4. radio frequency environment self-checking device according to claim 3, it is characterised in that：The man-machine interface includes liquid crystal
Display screen and keyboard.
5. radio frequency environment self-checking device according to claim 1, it is characterised in that：Same shaft mechanical is thrown the hilted broadsword to penetrate more
Frequency switch module includes throwing coaxial mechanical RF switch two hilted broadswords more.
6. radio frequency environment self-checking device according to claim 1, it is characterised in that：The DPDT mechanical RF is opened
Closing module includes a DPDT mechanical RF switch.
7. radio frequency environment self-checking device according to claim 1, it is characterised in that：Same shaft mechanical is thrown the hilted broadsword to penetrate more
Frequency switch module is electrical connected by communication interface with main control module；The DPDT mechanical RF switch module passes through communication
Interface is electrical connected with main control module.
8. radio frequency environment self-checking device according to claim 1, it is characterised in that：The external interface module include with
Too network interface, RS232 interfaces.
9. radio frequency environment self-checking device according to claim 1, it is characterised in that：The automatic calibration cartridge of radio frequency environment
Put including radiating module.
10. radio frequency environment self-checking device according to claim 9, it is characterised in that：The radiating module is by ventilating opening
And electric fan composition；The electric fan is arranged on box inside wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621383399.7U CN206370837U (en) | 2016-12-16 | 2016-12-16 | A kind of radio frequency environment self-checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621383399.7U CN206370837U (en) | 2016-12-16 | 2016-12-16 | A kind of radio frequency environment self-checking device |
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| Publication Number | Publication Date |
|---|---|
| CN206370837U true CN206370837U (en) | 2017-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621383399.7U Active CN206370837U (en) | 2016-12-16 | 2016-12-16 | A kind of radio frequency environment self-checking device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656378A (en) * | 2016-12-16 | 2017-05-10 | 苏州永安丰新能源科技有限公司 | RF environment automatic calibration device |
-
2016
- 2016-12-16 CN CN201621383399.7U patent/CN206370837U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656378A (en) * | 2016-12-16 | 2017-05-10 | 苏州永安丰新能源科技有限公司 | RF environment automatic calibration device |
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