CN102317799B - Antenna lifting device and electromagnetic wave measuring system - Google Patents

Antenna lifting device and electromagnetic wave measuring system Download PDF

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Publication number
CN102317799B
CN102317799B CN200980156722.3A CN200980156722A CN102317799B CN 102317799 B CN102317799 B CN 102317799B CN 200980156722 A CN200980156722 A CN 200980156722A CN 102317799 B CN102317799 B CN 102317799B
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CN
China
Prior art keywords
antenna
elevation angle
possesses
lifter
angle adjusting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN200980156722.3A
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Chinese (zh)
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CN102317799A (en
Inventor
铃木贤弥
佐藤敏胜
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Tokin Corp
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NEC Tokin Corp
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Publication of CN102317799A publication Critical patent/CN102317799A/en
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Expired - Fee Related legal-status Critical Current
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08Measuring electromagnetic field characteristics
    • G01R29/10Radiation diagrams of antennas
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08Measuring electromagnetic field characteristics
    • G01R29/0864Measuring electromagnetic field characteristics characterised by constructional or functional features
    • G01R29/0871Complete apparatus or systems; circuits, e.g. receivers or amplifiers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)

Abstract

An antenna lifting device is provided with an antenna unit and a lifting mechanism which brings up/down the antenna unit in the vertical direction. The antenna unit is provided with an antenna, an antenna supporting mechanism which supports the antenna, and an elevation angle adjusting mechanism configured to adjust the elevation angle of the antenna. The elevation angle adjusting mechanism adjusts the elevation angle of the antenna by rotating the antenna supporting mechanism, and the elevation angle can be adjusted independently from operation of bringing up/down the antenna unit by the lifting mechanism. Since the elevation angle of the antenna can be discretionary adjusted, electromagnetic wave measurement can be performed more accurately.

Description

Antenna lifter and electromagnetic wave measurement system
Technical field
The present invention relates to a kind of antenna lifter and possess the electromagnetic wave measurement system of this antenna lifter.
Background technology
For the electromagnetism to electronic device harms ripple, evaluate, carry out the electromagnetic measurement of sending from this electronic device.This measurement in anechoic chamber, or alignment clamp (open sight) carry out.As the device using or system, for example, there is the disclosed technology of patent documentation 1~3 in electromagnetic wave measurement.But the disclosed device of patent documentation 1~3 or system have the problem at the elevation angle that cannot adjust antenna.
With respect to this, the disclosed device of patent documentation 4 possesses the mechanism that automatically adjusts the elevation angle of antenna corresponding to the upright position of antenna.
Patent documentation 1: TOHKEMY 2007-033254 communique
Patent documentation 2: Japanese kokai publication hei 08-146063 communique
Patent documentation 3: Japanese Patent Publication 03-006013 communique
Patent documentation 4: No. 5379048 communique of United States Patent (USP)
But, in the measuring system of patent documentation 4, owing to can only adjusting definite elevation angle, so there is the inadequate situation of adjusting.In addition, in the measuring system of patent documentation 4, owing to having the measured instrument of relatively big difference by measuring height, so must prepare measuring system to each measured instrument.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of antenna lifter that possesses the mechanism that can more flexibly adjust the elevation angle.
An aspect of of the present present invention provides a kind of antenna lifter, it possesses antenna element, makes this antenna element elevating mechanism of lifting in the vertical direction, wherein, described antenna element possesses antenna and elevation angle adjusting mechanism, described elevation angle adjusting mechanism is constituted as and makes, under the independent state of the lifting of described antenna element, to adjust the elevation angle of described antenna with described elevating mechanism.
Invention effect
In the prior art, because the lifting action of antenna is associated with elevation angle adjustment, so if their relation of incorrect setting just can not be carried out correct mensuration when the directive property of antenna is high etc.With respect to this, according to the present invention, because lifting action and the elevation angle that can independent control antenna be adjusted, so the elevation angle can be adjusted into the properest state at height arbitrarily.So, according to the present invention, soft elevation angle adjustment can be carried out, therefore, high-precision mensuration can be carried out.In addition,, according to the present invention, owing to can be used as the value that is independent of height and position, adjust the elevation angle, so even for highly different measured instruments, also can be tackled by an antenna lifter.
Accompanying drawing explanation
Fig. 1 is the figure that schematically illustrates the electromagnetic wave measurement system of the antenna lifter that possesses embodiments of the present invention.
Fig. 2 is the side view that schematically illustrates the antenna lifter of Fig. 1.
Fig. 3 is the front view that schematically illustrates the antenna lifter of Fig. 2, but has omitted antenna.
Fig. 4 schematically illustrates a part for elevating mechanism and the amplification stereogram of antenna element comprising in the antenna lifter of Fig. 2.
Fig. 5 schematically illustrates the polarized wave angle adjusting mechanism that comprises in the antenna lifter of Fig. 3 and the enlarged drawing of antenna element, but has omitted antenna.
Symbol description
100 antenna lifters
110 elevating mechanisms
112 masts
114 upper side members
116 lower side members
Side roller on 118
120 times side rollers
122 bands
124 gear casees
126 motor
128 matrixes
128a hole
130 antenna elements
140 antennas
150 antenna support mechanisms
152 arms
154 holding members
156 axles
158 level meters
160 elevation angle adjusting mechanisms
162 elevation angle adjusting levers
162a retaining hole
164 slide blocks
166 feed nuts
168 feed screws
168a slider bore
170 guide posts
172 gear casees
174 motor
180 polarized wave adjusting mechanisms
182 polarized wave adjusting levers
184 linear actuators
200 universal stages
300 measured instruments (EUT)
Embodiment
With reference to figure 1, the electromagnetic wave measurement system of embodiments of the present invention possess antenna lifter 100 and with the universal stage 200 of antenna lifter 100 separate configuration.On universal stage 200, be equipped with measured instrument (EUT) 300.
As shown in FIG. 2 and 3, antenna lifter 100 possesses antenna element 130 and makes the vertically elevating mechanism 110 of lifting of antenna element 130.
As shown in FIG. 2 and 3, elevating mechanism 110 possesses: the mast 112 vertically extending; And the upper side member 114 being linked by mast 112 and lower side member 116.At upper side member 114, be provided with side roller 118, at lower side member 116, be provided with lower side roller 120.At upper side roller 118 and added being provided with of lower side roller 120, be with 122.As shown in Figure 4, lower side roller 120 is connected in motor 126 through gear case 124.Like this, by motor 126 with 122 driving.As this motor 126, for example, can use servomotor.
As shown in Figures 2 to 4, on mast 112, in the mode that can move in the vertical direction, be provided with matrix 128.From Fig. 2 and Fig. 3, matrix 128 be with 122 to be connected.And then, antenna element 130 is installed on matrix 128.By the driving with 122, carry out the lifting action of matrix 128, thus, also carry out the lifting action of antenna element 130.
As shown in Fig. 4 the best, antenna element 130 possesses: antenna 140; The antenna support mechanism 150 of supporting antenna 140; Adjust the elevation angle adjusting mechanism 160 at the elevation angle of antenna 140; And the polarized wave adjusting mechanism 180 of adjusting the polarization wave angle of antenna 140.
The antenna 140 of present embodiment is box horn.But the present invention is not limited to this, can use the antenna of various kinds.
As shown in Figure 4, antenna support mechanism 150 possesses: front end is provided with the arm 152 of antenna 140; The holding member 154 of keeping arm 152; Axle 156 with holding member 154 links; And be arranged on the level meter 158 on arm 152.
Arm 152 in present embodiment is arms of linearly extension, and on the face of the axle perpendicular to arm 152, has tetragonal cross section.But the present invention is not limited to this, arm also can have other shape.
In order to be adjusted by the polarization wave angle of 180 pairs of antennas 140 of polarized wave adjusting mechanism, the central shaft that the arm 152 of present embodiment is matched with the reception ripple of antenna 140 keeps antenna 140.In other words, the arm 152 of present embodiment extends in the mode of the central shaft of the reception ripple in alignment with antenna 140.
In order to be adjusted by the polarization wave angle of 180 pairs of antennas 140 of polarized wave adjusting mechanism, the holding member 154 of present embodiment possesses bearing construction arm 152 is carried out to axle supporting.Therefore, arm 152 can rotate around the central shaft of oneself, thereby can change the polarization wave angle of antenna 140.
It is cylindric or cylindric that axle 156 is.Axle 156 is inserted in the hole 128a being formed on matrix 128, is supported thus by matrix 128 axles.Because one end of axle 156 is fixedly linked on holding member 154, therefore, when axle 156 rotates, be held the arm 152 that parts 154 keep and rotate centered by holding member 154, thus, the variation of the elevation angle of antenna 140.
In the present embodiment, mast 112 and axle 156 are not associated, so that the movement of matrix 128 on mast 112 and the rotation of axle 156 are separate carrying out.
In the present embodiment, owing to being provided with level meter 158 on arm 152, so whether can detect objectively antenna 140 by horizontal arrangement.So, the horizontal detection parts that whether level meter 158 is 0 as the elevation angle that is used for detecting antenna 140 work.But the present invention is not limited to this.For example, can substitution level instrument 158, and use various angular transducers etc. to be used as horizontal detection parts.In addition, also can be corresponding to by the detected state of horizontal detection parts, the elevation angle of being undertaken by elevation angle adjusting mechanism 160 of automatically carrying out is as described below adjusted.
As shown in Figures 2 and 4, the elevation angle adjusting mechanism 160 of present embodiment is can be in the mechanism that is independent of the adjustment of the polarization wave angle that carries out antenna 140 under the state that is made antenna element 130 liftings by elevating mechanism 110.That is, the action of the action of elevating mechanism 110 and elevation angle adjusting mechanism 160 is mutually independent respectively, and not associated.
The elevation angle adjusting mechanism 160 of present embodiment is constituted as the elevation angle continually varying of antenna 140 is adjusted the described elevation angle simultaneously.Specifically, elevation angle adjusting mechanism 160 is by rotating with aforesaid axle 156Wei Zhoushi antenna support mechanism 150, thereby adjusts the elevation angle of antenna 140.
As shown in Fig. 4 the best, elevation angle adjusting mechanism 160 possesses: elevation angle adjusting lever 162; Be held in slidably the slide block 164 of elevation angle adjusting lever 162; Be connected and fixed on the feed nut 166 of slide block 164; And screw up the feed screw 168 on feed nut 166.
One end of elevation angle adjusting lever 162 is connected in the other end of the axle 156 of antenna support mechanism 150, and the circular motion of the other end by elevation angle adjusting lever 162 can make axle 156 rotate.
The other end at elevation angle adjusting lever 162 is formed with retaining hole 162a, and retaining hole 162a has the shape of runway shape for sports.Slide block 164 is held in elevation angle adjusting lever 162 in the mode that can slide in this retaining hole 162a.Result is that when slide block 164 moves in the vertical direction, this slide block 164 slides in retaining hole 162a, can make the other end of elevation angle adjusting lever 162 carry out circular motion simultaneously.
Feed nut 166 and feed screw 168 formations will rotatablely move and be converted to straight-line transmission mechanism.In detail, by the rotation of feed screw 168, feed nut 166 on feed screw 168 by linear feeding.That is, rotatablely moving of feed screw 168 is converted into the rectilinear motion of feed nut 166.Also can replace the combination of feed nut 166 and feed screw 168, and such as adopting other the transmission mechanism such as ball-screw.
In the present embodiment, feed nut 166 is fixed in slide block 164 as mentioned above, therefore, under the effect of the rotation of feed screw 168, slide block 164 rectilinear motions.And then the rectilinear motion of slide block 164 is delivered to elevation angle adjusting lever 162, thus, 162 rotations of elevation angle adjusting lever.The rotation of this elevation angle adjusting lever is delivered to the axle 156 of antenna support mechanism 150, thus, makes 150 rotations of antenna support mechanism, adjusts the elevation angle of antenna 140.Like this, the elevation angle adjusting mechanism of present embodiment possesses rotation-linearity-rotary transfer machine.But the present invention is not limited to this, as long as can give elevation angle adjusting lever 162 to rotatablely move, can be also other mechanisms.
The motor 174 that elevation angle adjusting mechanism 160 in present embodiment also possesses guide post 170 and is connected in guide post 170 through gear case 172.As motor 174, for example, can use servomotor.Motor 174 and gear case 172 are as the rotating mechanism of guide post 170 rotations is worked.But the present invention is not limited to this, also can adopt other rotating mechanism.
With reference to figure 2, guide post 170 is remained rotatably by the upper side member 114 of elevating mechanism 110 and lower side member 116 in the mode of vertically extending.In other words, guide post 170 extends in parallel with the mast 112 of elevating mechanism 110.
With reference to figure 4, the guide post 170 of present embodiment (in surface level) in the face with vertical direction quadrature has tetragonal cross section.Equally, on the feed screw 168 of present embodiment, be formed with the slider bore 168a with tetragonal cross section.But in surface level, the size of the slider bore 168a of feed screw 168 is less times greater than the size of guide post 170.
Guide post 170 is inserted in the slider bore 168a of feed screw 168.According to above-mentioned size relationship, feed screw 168 can be accompanied by the vertical movement of antenna element 130 and slide on guide post 170, on the other hand, can also be accompanied by the rotation of guide post 170 and rotates.
Although the guide post 170 of present embodiment has tetragonal cross section, the present invention is not limited to this.Guide post 170 so long as the rotation of oneself can be passed to the shape of feed screw 168, also can have other shapes.For example, guide post 170 can have triangle, hexagon, star uniform cross section.In addition, slider bore 168a is so long as the shape that feed screw 168 can slide on guide post 170, feed screw 168 can rotate corresponding to the rotation of guide post 170 on the other hand also can have quadrilateral shape in addition.And, in the situation that the shape of guide post 170 or slider bore 168a is complicated shape or the many polygonal shape of angle number, in order to make the transmission of the revolving force between guide post 170 and slider bore 168a smooth and easy, preferably reduce their gap.
With reference to figure 3, to Fig. 5, the polarized wave adjusting mechanism 180 of present embodiment is constituted as the polarization wave angle continually varying of antenna 140 is adjusted this polarization wave angle simultaneously.
Specifically, polarized wave adjusting mechanism 180 possesses polarized wave adjusting lever 182 and linear actuator 184.One end of polarized wave adjusting lever 182 is connected and fixed on arm 152.On the other hand, and elevation angle adjusting lever 162 is same with being connected of feed nut 166, and the other end of polarized wave adjusting lever 182 is to be connected with linear actuator 184 through slide block.Therefore, the rectilinear motion of linear actuator 184 is converted into the circular motion of the other end of polarized wave adjusting lever 182 at the connecting portion of linear actuator 184 and polarized wave adjusting lever 182.And then the circular motion of the other end of this polarized wave adjusting lever 182 is delivered to arm 184 as rotational motion.Thus, carry out the rotation of arm 184.So, the polarized wave adjusting mechanism 180 of present embodiment is by rotatablely moving this to pass to antenna support mechanism 150 rectilinear motion being converted to when rotatablely moving, and makes thus 150 rotations of antenna support mechanism and adjusts the polarization wave angle of antenna 140.
Above-mentioned polarized wave adjusting mechanism 180 can be substituted by other formations.But, according to the polarized wave adjusting mechanism 180 of present embodiment, can realize the lightweight of antenna lifter 100.
The antenna lifter 100 of above-mentioned embodiment is can be independent of the movement to vertical direction of antenna element 130 and antenna 140 is carried out to the mechanism that twin shaft rotation is controlled, and therefore, can carry out various measurements to various determined instruments.
Above, enumerate object lesson the present invention has been described, but the present invention is not limited to this.
For example, in Fig. 1, corresponding to the height H of antenna element 130 and the elevation angle theta of antenna 140, exist antenna lifter 100 situation different with the measuring distance of regulation with the distance L of determined instrument 300.In order to tackle this situation, also can the distance correction mechanism that measuring distance is revised be set in electromagnetic wave measurement system.As distance correction mechanism, can consider various structures, such as the lower side member 116 at antenna lifter 100, roller or wheel etc. are installed, make antenna lifter 100 itself form self-propelled mechanism, the not too large type of system, and the postural balance of antenna lifter 100 can not broken yet, can form distance correction mechanism.

Claims (10)

1. an antenna lifter, it possesses antenna element and makes the vertically elevating mechanism of lifting of this antenna element, wherein,
The antenna support mechanism that described antenna element possesses antenna, elevation angle adjusting mechanism and supports described antenna, described elevation angle adjusting mechanism is constituted as and makes under the independent state of the lifting of described antenna element with described elevating mechanism, adjust the elevation angle of described antenna
Described antenna support mechanism possesses the arm of the described antenna of supporting, and described arm extends in the mode of the central shaft of the reception ripple in alignment with described antenna,
Described elevation angle adjusting mechanism is by making described antenna support mechanism rotate to adjust the elevation angle of described antenna,
Described elevation angle adjusting mechanism is constituted as the elevation angle continually varying of described antenna is adjusted the described elevation angle simultaneously,
Described elevation angle adjusting mechanism is by rotatablely moving and be converted to rectilinear motion first, and then this rectilinear motion is converted to second rotatablely moves, and this second is rotatablely moved and pass to described antenna support mechanism, make thus described antenna support mechanism rotate and adjust the elevation angle of described antenna
Described elevation angle adjusting mechanism possesses elevation angle adjusting lever, slide block and transmission mechanism,
Described elevation angle adjusting lever possesses two ends,
One end of described elevation angle adjusting lever is connected in described antenna support mechanism,
The other end at described elevation angle adjusting lever is formed with retaining hole,
Described slide block is held in described elevation angle adjusting lever in the mode that can slide in described retaining hole,
Described transmission mechanism is constituted as to be accepted first and rotatablely moves and make described slide block traveling priority,
Described rectilinear motion by described slide block is delivered to described elevation angle adjusting lever, and described elevation angle adjusting lever carries out described second and rotatablely moves thus.
2. antenna lifter as claimed in claim 1, wherein,
Described elevating mechanism possesses the electric pole vertically extending and is installed in the matrix on described electric pole in the mode that can move along described vertical direction,
Described antenna support mechanism is supported in described matrix in rotating mode.
3. antenna lifter as claimed in claim 1, wherein,
The rotating mechanism that described elevation angle adjusting mechanism also possesses the guide post vertically extending and makes guide post rotation,
Described transmission mechanism possesses and is fixed in the feed nut of described slide block and makes this feed nut feed screw of feeding in the vertical direction by rotating,
On described feed screw, be formed with slider bore,
The cross sectional shape that described guide post and described slider bore have is: at described guide post, insert under the state in described slider bore, being accompanied by feed screw described in the lifting of described antenna element can slide on described guide post, the described feed screw of rotation that is accompanied by the other hand described guide post is also rotatable
By described rotating mechanism and through described guide post, described feed screw is supplied with to described first and rotatablely move.
4. antenna lifter as claimed in claim 1, wherein,
Whether described antenna support mechanism possesses for detection of the elevation angle of described antenna is 0 horizontal detection parts.
5. antenna lifter as claimed in claim 4, wherein,
Described horizontal detection parts are level meters.
6. the antenna lifter as described in any one in claim 1~5, wherein,
Described antenna lifter also possesses the polarized wave adjusting mechanism of the polarization wave angle of adjusting described antenna.
7. antenna lifter as claimed in claim 6, wherein,
Described polarized wave adjusting mechanism is constituted as the polarization wave angle continually varying of described antenna is adjusted described polarization wave angle simultaneously.
8. antenna lifter as claimed in claim 7, wherein,
Described polarized wave adjusting mechanism is by this being rotatablely moved and passes to described antenna support mechanism rectilinear motion being converted to when rotatablely moving, thereby makes described antenna support mechanism's rotation and adjust the polarization wave angle of described antenna.
9. antenna lifter as claimed in claim 8, wherein,
Described polarized wave adjusting mechanism possesses polarized wave adjusting lever and linear actuator,
Described polarized wave adjusting lever possesses two ends,
One end of described polarized wave adjusting lever is connected in described arm,
The other end at described polarized wave adjusting lever is provided with described linear actuator,
The rectilinear motion of described linear actuator is delivered to described arm through described polarized wave adjusting lever as rotatablely moving.
10. an electromagnetic wave measurement system, it possesses antenna lifter claimed in claim 1; And divide with this antenna lifter the universal stage being arranged.
CN200980156722.3A 2009-02-27 2009-02-27 Antenna lifting device and electromagnetic wave measuring system Expired - Fee Related CN102317799B (en)

Applications Claiming Priority (1)

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PCT/JP2009/000917 WO2010097842A1 (en) 2009-02-27 2009-02-27 Antenna lifting device and electromagnetic wave measuring system

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CN102317799B true CN102317799B (en) 2014-05-07

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WO2010097842A1 (en) 2010-09-02
KR101524180B1 (en) 2015-05-29
CN102317799A (en) 2012-01-11

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