CN206773083U - The arch support that material electromagnetic property measures in being modeled for radio communication channel - Google Patents
The arch support that material electromagnetic property measures in being modeled for radio communication channel Download PDFInfo
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- CN206773083U CN206773083U CN201720342266.3U CN201720342266U CN206773083U CN 206773083 U CN206773083 U CN 206773083U CN 201720342266 U CN201720342266 U CN 201720342266U CN 206773083 U CN206773083 U CN 206773083U
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Abstract
It the utility model is related to ELECTROMAGNETIC REFLECTION and transmissison characteristic field of measuring technique, there is provided the arch support that material electromagnetic property measures in a kind of modeling for radio communication channel, including base, stake body, semicircle slide rail, sliding block, rotary drive mechanism；Stake body is on base；On stake body, semicircle slide rail can rotate semicircle slide rail around its diameter；There is scale on semicircle slide rail；Rotary drive mechanism is used to drive semicircle slide rail to be pivoted；For sliding block on semicircle slide rail, sliding block is provided with retaining mechanism.The beneficial effects of the utility model：Solve the problems, such as flexibly be accurately positioned distance and regulation angle in radio communication channel modeling in the measurement of construction material electromagnetic property；Suitable for laying different types of antenna；Slide rail is removable, conveniently dismounting and restructuring, can flexibly be used for the research of different Construction material characteristics；Base and stake body are made using fiberglass, there is ultralow microwave scattering, high intensity, corrosion-resistant, insulation.
Description
Technical field
It the utility model is related to the ELECTROMAGNETIC REFLECTION and transmissison characteristic field of measuring technique of actual construction material, more particularly to one
Kind is used for the arch support that material electromagnetic property measures in radio communication channel modeling.
Background technology
The characteristics of indoor wireless communication environment is that transimission power is smaller, and coverage distance is closer to the change of environment is bigger.For
For different buildings, reflection, diffraction, diffraction, refraction (transmission) and the cloth of scattering situation and indoor article of electromagnetic wave
The factors such as office, material structure, building yardstick are closely related.In Wireless Channel Modeling, for statistical model, generally require
The solution penetration loss that different scenes electromagnetic wave passes through construction material under typical environment；Then it is to pass through number for deterministic models
The method that value calculates solves maxwell equation group and propagated to describe indoor wireless electric wave.Ray trace skill widely used at present
Art is exactly a kind of Decided modelling method, generally require to know in its calculating process material dielectric property parameter (magnetic permeability mu,
Conductivity σ, permittivity ε).Compared to the dielectric property parameter of desired homogeneous material, the Construction material characteristics parameter of actual measurement is imported
Actual radio wave propagation rule can be described more accurately.
Subject matter in the presence of current existing material property measurement scheme has：
1st, in following 5th third-generation mobile communication (5G), due to the application of millimeter wave frequency band communication, different incidence angles cause
Penetration loss there may exist difference, in addition when measuring material reflection characteristic need keep at a distance it is constant in the case of not
The disconnected incidence angle and angle of reflection for changing dual-mode antenna, and the existing measurement scheme based on tripod can not pass through simple and convenient
Adjustment comes accurate fixation measuring distance, regulation angle and changes polarization, therefore is difficult angle when accurately reflecting millimeter wave propagation
Characteristic.
2nd, because the complexity of actual radio propagation environment, traditional penetration loss measurement scheme are only used for special scenes
(e.g., microwave dark room) and certain material (e.g., customized idealization material), it can not be applied in actual construction material measurement.
3rd, the electromagnetic property of antenna holder material in itself is undesirable, may influence electromagnetic wave and machine is propagated in measurement range
The change of system.
Therefore, it is necessary in view of the above-mentioned problems, design is easy to flexibly be accurately positioned distance and regulation angle, may move and tear open
Unload restructuring, the nonmetallic materials support that Scattering Influence is small, firm, construction material electromagnetism in being modeled for radio communication channel
The high precision measuring system of characteristic.
Utility model content
The purpose of this utility model is exactly overcome the deficiencies in the prior art, there is provided one kind is used for radio communication channel and modeled
The arch support of middle material electromagnetic property measurement, on the basis of original Construction material characteristics measuring system is not changed, design
It is easy to flexibly to be accurately positioned distance and adjusts angle, removable and dismounting restructuring, Scattering Influence is small, firm nonmetallic
Material arch support；Fundamentally solve radio communication channel modeling in construction material electromagnetic property measurement in, in the past can not
The problem of being flexibly accurately positioned distance and regulation angle；The dexterous arch support is applied to lay different types of antenna；It half
Circular antenna slide rail is removable, can conveniently dismantle and restructuring, flexibly in the research of different Construction material characteristics (such as：Ground,
Ceiling, desk, door, glass, wall etc.).In addition, using fiberglass (scientific name, fiberglass reinforced plastics) as base and
Support, there is ultralow microwave scattering, high intensity, corrosion-resistant, insulation；It is accurate that the utility model is effectively improved measurement
Degree and operating efficiency.
The arch support that material electromagnetic property measures in a kind of modeling for radio communication channel of the utility model, including bottom
Seat, stake body, semicircle slide rail, sliding block, rotary drive mechanism；
The stake body is 2, may be contained within the base, is fixedly connected or is detachably connected with the base；
The both ends of the semicircle slide rail are respectively arranged on 2 stake bodies, and the semicircle slide rail can be around it
Diameter rotates；Scale is provided with the semicircle slide rail, the scale unit is regulation incidence angle and the angle of angle of reflection step
It is long；
The rotary drive mechanism is used to drive the semicircle slide rail to be pivoted；
The sliding block is arranged on the semicircle slide rail, and retaining mechanism is provided with the sliding block.
Further, the base bottom is provided with pulley.
Further, the rotary drive mechanism is combined roller contact bearing, the combined roller contact bearing include main roller and
Side wheel, it is separately fixed on 2 stake bodies, the main roller is provided with handle, for by the semicircle slide rail hand
Shake to horizontal level.
Further, the quantity of the sliding block is 2, is respectively used to fixed placement sending and receiving antenna.
Further, the socket that convenient antenna is connected with radio-frequency cable is provided with the sliding block.
Further, the material of the base is fiberglass reinforced plastics steel；The material of the semicircle slide rail is phenol
Aldehyde bakelite plate；The material of the sliding block is polytetrafluoroethylplastic plastic.
Further, the height of the stake body is 1420mm；Semicircle slide rail level on the stake body is put
Highly it is 1480mm when putting；The radius of the semicircle slide rail is 1000mm.
Further, the sliding block adjustable incident angle on the semicircle slide rail is 0 ° to 75 °.
Further, the base, stake body, semicircle slide rail, sliding block pass through polytetrafluoroethylplastic plastic spiral shell between each other
Silk is connected.
Further, the scale unit is 1 °.
The beneficial effects of the utility model are：
1st, this dexterous arch support flexibly accurate fixed antenna distance, regulation aerial angle and can change antenna polarization, protect
Demonstrate,prove antenna and construction material to be measured (ground, ceiling, desk, door, glass, wall etc.) perpendicular；
2nd, this dexterous arch support can flexibly be moved, dismantles and recombinated, and be conveniently placed at different building material surfaces and entered
Row measurement；
3rd, by designing two identical dexterity arch supports, detected materials both sides are individually positioned in, available for measurement not
With the transmissison characteristic of material under incident angle；
4th, electromagnetic wave far-field measurement requirement is met in this dexterous arch support size；
5th, the Scattering Influence of this dexterous arch support all material is small, meets that millimere-wave band radio communication channel models
The high-acruracy survey requirement of middle construction material electromagnetic property.
Brief description of the drawings
Fig. 1 show the utility model embodiment arch support overall structure diagram (front view).
Fig. 2 show the utility model embodiment arch support overall structure diagram (top view)..
Wherein：1- bases, 2- stake bodies, 3- semicircles slide rail, 4- sliding blocks, 5- combined roller contact bearings.
Embodiment
The utility model specific embodiment is described in detail below in conjunction with specific accompanying drawing.It should be noted that following implementations
Example described in technical characteristic or technical characteristic combination be not construed as it is isolated, they can be mutually combined from
And reach superior technique effect.In the accompanying drawing of following embodiments, the identical label that each accompanying drawing occurs represents identical spy
Sign or part, can be applied in different embodiments.
As shown in Figure 1-2, the utility model embodiment is a kind of is used for material electromagnetic property survey in radio communication channel modeling
The arch support of amount, it is characterised in that including base, stake body, semicircle slide rail, sliding block, rotary drive mechanism；
The stake body is 2, may be contained within the base, is fixedly connected or is detachably connected with the base；
The both ends of the semicircle slide rail are respectively arranged on 2 stake bodies, and the semicircle slide rail can be around it
Diameter rotates；Scale is provided with the semicircle slide rail, the scale unit is regulation incidence angle and the angle of angle of reflection step
It is long；The scale unit is 1 °；
The rotary drive mechanism is used to drive the semicircle slide rail to be pivoted；
The sliding block is arranged on the semicircle slide rail, for fixed antenna, is easy to adjust the polarised direction of antenna, institute
State and retaining mechanism is provided with sliding block；The retaining mechanism is 2 locking handwheels, and for fixing sliding block 4, anti-limited slip block 4 is being surveyed
Relative slide occurs during amount with semicircle slide rail 3；Socket is additionally provided with the sliding block, with convenient antenna and radio-frequency cable
Connection.
The base bottom is provided with pulley, is easy to arch support to move integrally；Needed in vertical wall test process by
Base 1 is shed, and ensures that the diameter of semicircle slide rail 3 is bonded with detected materials surface, overall perpendicular to metope.
The rotary drive mechanism just takes any mode of the prior art, such as can be combined roller contact bearing, institute
Stating combined roller contact bearing includes main roller and side wheel, is separately fixed on 2 stake bodies, the main roller is provided with hand
Handle, for the semicircle slide rail have been shaken to horizontal level manually.When semicircle slide rail is horizontal, to keep flat
Weighing apparatus, can increase with the mutually level polytetrafluoroethylplastic plastic support of stake body 2, ensure semicircle slide rail 3 when level has been shaken by
Power is uniform.
In general, the quantity of the sliding block is 2, is respectively used to fixed placement sending and receiving antenna.
Preferably, the material of the base is fiberglass reinforced plastics steel；The material of the semicircle slide rail is phenolic aldehyde
Bakelite plate；The material of the sliding block is polytetrafluoroethylplastic plastic；The selection of above-mentioned material ensures that arch support is extremely low in the measurements
Scattering Influence.
The base, stake body, semicircle slide rail, sliding block are consolidated by polytetrafluoroethylplastic plastic screw connection between each other
It is fixed, convenient dismounting, and eliminate its influence in measuring environment to Electromagnetic Wave Propagation.
In the measurement of millimeter wave frequency band material transmission and reflection characteristic, the size design of semicircle slide rail 3 meets far field bar
Part；Preferably, the height of the stake body is 1420mm；Semicircle slide rail height when horizontal positioned on the stake body
For 1480mm；The radius of the semicircle slide rail is 1000mm.
Because the size of sliding block 4 limits, the sliding block adjustable incident angle on the semicircle slide rail is difficult to reach
To 0 ° to 90 °, in the preferred embodiment, reach 0 ° to 75 °, material electricity in radio communication channel modeling can have been met completely
The actual demand of magnetic characteristic measurement.
Concrete application of the present utility model：
Using one：Material reflection characteristic measures
By using the arch support in 1 the utility model embodiment, two sliding blocks 4 are disposed on semicircle slide rail 3,
Sending and receiving antenna is fixed respectively, it is possible to achieve the measurement of 5G millimeter wave frequency band material reflection characteristics.The material medium ginseng that inverting obtains
Number emulates available for the ray trace of radio wave propagation, so as to establish radio communication channel model.
This application uses the measuring system of the material reflection characteristic based on vector network analyzer (VNA)；Start in measurement
It is preceding that internal calibration is carried out to VNA first, then configure relevant parameter, including power output, swept frequency range, frequency sweep points, frequency sweep
Number or time, resolution bandwidth etc..Semicircle slide rail 3 is gone into horizontal level by rotating combined roller contact bearing 5, ensure with
Detected materials surface is vertical, and is respectively arranged on two identical high-gain horn antennas on two sliding blocks 4 with identical polarization.
Wherein transmitting antenna is connected to VNA a ports by radio frequency coaxial-cable, and reception antenna is connected to VNA b ports.Regulation is slided
Block 4 make it that the incidence angle of antenna and angle of reflection are equal, and by controlling VNA records to survey parameter S21Value.Often complete an angle
After the measurement of degree, with fixed step-length two sliding blocks 4 of (5 °) regulations, the angled measurement result of institute is obtained.Change two antennas
Polarised direction, repeat the above steps and be sequentially completed vertical/parallel-polarized measurement.Remembered finally by each angle case is lower
Record obtained S21Value is finally inversed by the medium parameter of construction material.
Using two：Material transmission feature measurement
By using the arch support in 2 the utility model embodiments, 2 arch supports, which are symmetrically arranged in, to be waited to measure and monitor the growth of standing timber
The both sides of material；For each arch support, two sliding blocks 4, and fixed sending and receiving day are disposed on two semicircle slide rails 3 respectively
Line, it is possible to achieve the measurement of 5G millimeter wave frequency band material transmission characteristics.On the one hand measurement result can be used for Jie of inverting material
Simultaneously and in example one result is mutually authenticated matter parameter；On the other hand the penetration loss of different materials can be obtained, is directly applied to
In the modeling of millimeter wave frequency band radio communication channel.
This application uses the measurement system based on vector network analyzer (VNA) and the material transmission characteristic for extending signal source
System.Internal calibration is carried out to VNA first before measurement starts, VNA and signal source are then connected to one by wireless router
In individual LAN, and auxiliary device of the signal source as VNA will be extended out, with increase the dynamic range of test system and test away from
From.Relevant parameter is configured according to measurement demand, including power output, swept frequency range, frequency sweep points, sweep or time, point
Resolution bandwidth etc..Semicircle slide rail 3 is adjusted to horizontal level by rotating two combined roller contact bearings 5, ensures two slide rails 3
It is horizontal and vertical with detected materials surface.Two identical high-gain horn antennas are arranged on two cunnings with identical polarization respectively
On the sliding block 4 of rail 3, and remain that the angle of dual-mode antenna is identical in measurement process.Wherein transmitting antenna is same by radio frequency
Shaft cable is connected to VNA 1 port, and reception antenna is connected to VNA 2 ports, by controlling VNA records to survey parameter S21's
Value.Due to the influence of material thickness, when electromagnetic wave passes through material internal, it may occur that certain translation, therefore changing incidence angle
While, the support where receiving terminal needs to carry out translation gliding in the horizontal direction, ensures the receiving power of maximum.Finally lead to
Cross the lower S for recording to obtain of each angle case21Value can directly obtain the penetration loss of construction material, less for decaying
Material can be finally inversed by the medium parameter of construction material and the result with being obtained in example one is contrasted.
The beneficial effects of the utility model are：
1st, this dexterous arch support flexibly accurate fixed antenna distance, regulation aerial angle and can change antenna polarization, protect
Demonstrate,prove antenna and construction material to be measured (ground, ceiling, desk, door, glass, wall etc.) perpendicular；
2nd, this dexterous arch support can flexibly be moved, dismantles and recombinated, and be conveniently placed at different building material surfaces and entered
Row measurement；
3rd, by designing two identical dexterity arch supports, detected materials both sides are individually positioned in, available for measurement not
With the transmissison characteristic of material under incident angle；
4th, electromagnetic wave far-field measurement requirement is met in this dexterous arch support size；
5th, the Scattering Influence of this dexterous arch support all material is small, meets that millimere-wave band radio communication channel models
The high-acruracy survey requirement of middle construction material electromagnetic property.
Although having been presented for several embodiments of the present utility model herein, those skilled in the art should manage
Solution, in the case where not departing from the utility model spirit, can be changed to the embodiments herein.Above-described embodiment simply shows
Example property, restriction that should not using the embodiments herein as the utility model interest field.
Claims (10)
1. the arch support that material electromagnetic property measures in a kind of modeling for radio communication channel, it is characterised in that the bottom of including
Seat, stake body, semicircle slide rail, sliding block, rotary drive mechanism；
The stake body is 2, may be contained within the base, is fixedly connected or is detachably connected with the base；
The both ends of the semicircle slide rail are respectively arranged on 2 stake bodies, and the semicircle slide rail can be around its diameter
Rotation；Scale is provided with the semicircle slide rail, the scale unit is regulation incidence angle and the angle step of angle of reflection；
The rotary drive mechanism is used to drive the semicircle slide rail to be pivoted；
The sliding block is arranged on the semicircle slide rail, and retaining mechanism is provided with the sliding block.
2. arch support as claimed in claim 1, it is characterised in that the base bottom is provided with pulley.
3. arch support as claimed in claim 1, it is characterised in that the rotary drive mechanism is combined roller contact bearing, institute
Stating combined roller contact bearing includes main roller and side wheel, is separately fixed on 2 stake bodies, the main roller is provided with hand
Handle, for the semicircle slide rail have been shaken to horizontal level manually.
4. arch support as claimed in claim 1, it is characterised in that the quantity of the sliding block is 2, is respectively used to fixation and puts
Put sending and receiving antenna.
5. arch support as claimed in claim 4, it is characterised in that be provided with convenient antenna and radio-frequency cable on the sliding block
The socket of connection.
6. the arch support as described in claim any one of 1-5, it is characterised in that the material of the base increases for glass fibre
Strong plastics steel；The material of the semicircle slide rail is phenol glue plank；The material of the sliding block is polytetrafluoroethylplastic plastic.
7. the arch support as described in claim any one of 1-5, it is characterised in that the height of the stake body is 1420mm；
The semicircle slide rail is highly 1480mm when horizontal positioned on the stake body；The radius of the semicircle slide rail is
1000mm。
8. the arch support as described in claim any one of 1-5, it is characterised in that the sliding block is on the semicircle slide rail
Adjustable incident angle is 0 ° to 75 °.
9. the arch support as described in claim any one of 1-5, it is characterised in that the base, stake body, semicircle are sliding
Rail, sliding block are fixed by polytetrafluoroethylplastic plastic screw connection between each other.
10. the arch support as described in claim any one of 1-5, it is characterised in that the scale unit is 1 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720342266.3U CN206773083U (en) | 2017-04-01 | 2017-04-01 | The arch support that material electromagnetic property measures in being modeled for radio communication channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720342266.3U CN206773083U (en) | 2017-04-01 | 2017-04-01 | The arch support that material electromagnetic property measures in being modeled for radio communication channel |
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| CN206773083U true CN206773083U (en) | 2017-12-19 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990299A (en) * | 2017-04-01 | 2017-07-28 | 工业和信息化部电信研究院 | The arch support that material electromagnetic property is measured in being modeled for radio communication channel |
| CN108663578A (en) * | 2018-04-28 | 2018-10-16 | 上海交通大学 | Reflection for microwave/millimeter wave frequency range vortex electromagnetic wave and transmission test device |
| CN109917197A (en) * | 2019-04-02 | 2019-06-21 | 山东省波尔辐射环境技术中心 | A kind of electromagnet radiation detection instrument verifying device |
| TWI738123B (en) * | 2018-11-27 | 2021-09-01 | 日商森田科技股份有限公司 | Test device for communication equipment |
-
2017
- 2017-04-01 CN CN201720342266.3U patent/CN206773083U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990299A (en) * | 2017-04-01 | 2017-07-28 | 工业和信息化部电信研究院 | The arch support that material electromagnetic property is measured in being modeled for radio communication channel |
| CN106990299B (en) * | 2017-04-01 | 2024-02-20 | 工业和信息化部电信研究院 | Arched bracket for measuring electromagnetic characteristics of materials in modeling of wireless communication channels |
| CN108663578A (en) * | 2018-04-28 | 2018-10-16 | 上海交通大学 | Reflection for microwave/millimeter wave frequency range vortex electromagnetic wave and transmission test device |
| TWI738123B (en) * | 2018-11-27 | 2021-09-01 | 日商森田科技股份有限公司 | Test device for communication equipment |
| CN109917197A (en) * | 2019-04-02 | 2019-06-21 | 山东省波尔辐射环境技术中心 | A kind of electromagnet radiation detection instrument verifying device |
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Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF INFORMATION AND COMMUNICATIONS Address before: 100191 No. 52 Huayuan North Road, Haidian District, Beijing Patentee before: CHINA ACADEME OF TELECOMMUNICATION RESEARCH OF MIIT |