CN203101525U - An antenna beamwidth calibration device using the sun as a signal source - Google Patents
An antenna beamwidth calibration device using the sun as a signal source Download PDFInfo
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- CN203101525U CN203101525U CN 201220275249 CN201220275249U CN203101525U CN 203101525 U CN203101525 U CN 203101525U CN 201220275249 CN201220275249 CN 201220275249 CN 201220275249 U CN201220275249 U CN 201220275249U CN 203101525 U CN203101525 U CN 203101525U
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Abstract
The utility model discloses an antenna beamwidth calibration device using the sun as a signal source. The device comprises a pitching and azimuth rotary platform, a transmission unit, and a control processing unit. The pitching and azimuth rotary platform comprises a platform which is fixed on a support and used for placing an antenna, a pitching motor and an azimuth motor which are under the support and used for controlling pitching or bearing motions of the platform, and a pitching angle sensor and an azimuth sensor which collect the pitching angle and the azimuth of the platform. The transmission unit transmits control signals which drive the pitching motor and the azimuth motor, collects the pitching angle, the azimuth and the output signal intensity of an antenna receiver, and transmits the pitching angle, the azimuth and the output signal intensity to the control processing unit. The control processing unit outputs the control signals and calculates antenna beamwidth based on the pitching angle, the azimuth and the signal intensity of the antenna receiver as well as the definition of the antenna beam width. Compared with darkroom measurement, the antenna beamwidth calibration device can obtain a more accurate antenna beamwidth, is also simpler in the structure of a measurement device and lower in cost, and solves a problem that investment in test condition construction for a darkroom assay method is large.
Description
Technical field
The utility model relates to antenna beamwidth calibration technique field, and being specifically related to a kind of is the antenna beamwidth caliberating device of signal source with the sun.
Background technology
The radiofrequency signal power of radio transmitter output is transported to antenna by feeder line (cable), is radiate with the electromagnetic wave form by antenna.Next and by feeder line electromagnetic wave delivers to wireless receiver by antenna after arriving and receiving the place.As seen, antenna is to transmit and receive an electromagnetic important wireless device, does not have antenna also just not have wireless communication.
One of parameter of weighing antenna performance is a beam angle.Antenna beamwidth (Antenna beamwidth) has another name called the half-power beam broadband.Antenna beamwidth has two kinds: horizontal beam width and vertical beam width; The horizontal wave beamwidth is meant in the horizontal direction, in greatest irradiation direction 2 sides, and the angle of the both direction of radiation power decline 3dB; And vertical beam width is meant in vertical direction, in greatest irradiation direction 2 sides, and the angle of 2 directions of radiation power decline 3dB.
At present, the device of measuring antenna beamwidth is to be undertaken by the darkroom, and such demarcation dress accuracy is not high, can not reflect antenna beamwidth more exactly, thereby can't describe antenna performance exactly; In addition, the investment of the construction test condition of this mensuration antenna beam is bigger.
The utility model content
It is the antenna beamwidth caliberating device of signal source with the sun that the purpose of this utility model is to provide a kind of, is intended to solve the near field measurement of existing darkroom and demarcates the not high and big problem of construction test condition investment of antenna beamwidth accuracy.
The utility model is to realize like this, a kind of is the antenna beamwidth caliberating device of signal source with the sun, comprise: pitching azimuth rotating platform, described pitching azimuth rotating platform comprise be fixed on being used on the support place antenna platform, divide into pitching motor, the azimuth-drive motor of control described platform pitching or orientation motion and gather luffing angle sensor, the orientation angles sensor of described platform luffing angle and orientation angles at described support.
Transmission unit, transmit the control signal that drives described pitching motor, azimuth-drive motor, gather the luffing angle of described luffing angle sensor, orientation angles sensor acquisition and the output signal strength of orientation angles and aerial receiver and be transferred to controlled processing unit.
Controlled processing unit is exported described control signal, and according to described luffing angle and orientation angles and aerial receiver signal intensity, antenna beamwidth is calculated in definition according to antenna beamwidth.
Described pitching motor is connected with described platform by screw rod, pitching rotating shaft; Described azimuth-drive motor connects described support by transmission gear, orientation turning axle.
Described luffing angle sensor is located in the described pitching rotating shaft, and described orientation angles sensor is located on the described support.
Described support is fixed on the chassis.
The utility model compared with prior art, have following beneficial effect: the utility model utilizes the sun to be signal source, drive antenna by the pitching rotation platform and do pitching or spinning movement, directly measure antenna beamwidth by the far field, comparing the measurement of darkroom, near field is to obtain antenna beamwidth by calculating, and the antenna beamwidth accuracy of obtaining is higher; Simultaneously caliberating device is simpler, and does not need the darkroom, cost, thereby solved the bigger problem of investment that the construction test condition of antenna beam is measured in the darkroom.
Description of drawings
What Fig. 1 was that the utility model embodiment provides is the pitching azimuth rotating platform structural representation of the antenna beamwidth caliberating device of signal source with the sun.
Fig. 2 is the placement synoptic diagram of the antenna that provides of the utility model embodiment at the pitching azimuth rotating platform.
What Fig. 3 was that the utility model embodiment provides is the principle of work synoptic diagram of the antenna beamwidth caliberating device of signal source with the sun.
What Fig. 4 was that the utility model embodiment provides is the control flow chart of scaling method of the antenna beamwidth of signal source with the sun.
Reference numeral: 1-platform, 2-screw rod, 3-pitching motor, 4-pitching rotating shaft, 5-luffing angle sensor, 6-support, 7-orientation angles sensor, 8-chassis, 9-orientation turning axle, 10-transmission gear, 11-azimuth-drive motor, 12-antenna.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with accompanying drawing.
It is the antenna beamwidth caliberating device of signal source with the sun that the utility model embodiment provides a kind of.Shown in Fig. 1 ~ 4, a kind of is the antenna beamwidth caliberating device of signal source with the sun, comprise: the pitching azimuth rotating platform, described pitching azimuth rotating platform comprises the platform 1 that is used to place antenna 12, described platform 1 fixed placement is provided with the pitching motor 3 that is used to drive described platform 1 luffing below described support 6 on a support 6, be used to drive described support 6 and platform 1 and make the azimuth-drive motor 11 of level orientation rotation and the luffing angle sensor 5 of gathering the luffing angle of described platform 1, gather the orientation angles sensor 7 of the orientation angles of described platform 1.
Transmission unit, be used for the control signal of controlled processing unit output is transferred to described pitching motor 3 and azimuth-drive motor 11, control described driving pitching motor 3 and azimuth-drive motor 11 motions, thereby drive described platform 1 and make corresponding sports, the output signal strength of the aerial receiver of the luffing angle of the platform 1 that described luffing angle sensor 5 and orientation angles sensor 7 gathered and orientation angles and antenna 12 is transferred to described controlled processing unit simultaneously.
Controlled processing unit, be used to export the control signal that drives described pitching motor 3 and azimuth-drive motor 11, and the output signal strength of the luffing angle of gathering according to described luffing angle sensor 5 and orientation angles sensor 7 and the aerial receiver of orientation angles and antenna 12, according to antenna beamwidth definition calculating antenna beamwidth.
Described platform 1 is fixed on the support 6, described pitching motor 3 is connected with described platform 1 by screw rod 2, pitching rotating shaft 4; Described azimuth-drive motor 11 connects described support 6 by transmission gear 10, orientation turning axle 9.
Described luffing angle sensor 5 is located in the described pitching rotating shaft 4, and described orientation angles sensor 7 is located on the described support 6.
Described support 6 is fixed on the chassis 8.
Below in conjunction with Fig. 2 ~ 4, the demarcation that the antenna beamwidth caliberating device that utilization the utility model embodiment is provided carries out antenna beamwidth is described as follows: with antenna 12 fixed placement on the platform 1 of described pitching azimuth rotating platform.
By controlled processing unit output control signal, driving described pitching motor 2 and azimuth-drive motor 11 drives described platform 1 and does luffing or horizontally rotate, the aerial receiver output signal power of the antenna 12 that makes is the strongest, just make the described antenna alignment sun, obtain the luffing angle a and the orientation angles b of this antenna 12 constantly by described luffing angle sensor and orientation angles sensor.
By controlled processing unit output control signal, driving described platform 1 is that the center is done pitching or rotation respectively with described angle of pitch a and position angle b, and obtain the output signal strength of described platform 1 pitching or postrotational luffing angle, orientation angles and aerial receiver by described luffing angle sensor and orientation angles sensor, deposit database in.
The output signal strength of described luffing angle, orientation angles and described aerial receiver that controlled processing unit obtains according to described luffing angle sensor 5 and orientation angles sensor 7, antenna beamwidth is calculated in definition according to antenna beamwidth.
The utility model is regarded the sun point source of launching electromagnetic wave as, is signal source with the sun, obtains antenna beamwidth by rotation, pitching antenna.A kind of application is the scaling method of the antenna beamwidth caliberating device of signal source with the sun, may further comprise the steps: 1), with antenna 12 fixed placement on platform 1.
2), drive the rotation of described platform 1 by azimuth-drive motor 11, drive the pitching of described platform 1 by pitching motor 4, make the aerial receiver output signal power of described antenna the strongest, just make the described antenna alignment sun, obtain the luffing angle a and the orientation angles b of described antenna this moment by pitch reference and azimuth sensor.
Because described antenna 12 fixed placement are on described platform 1, therefore, the luffing angle a of described platform 1 and orientation angles b are the luffing angle a and the orientation angles b of described antenna 12.
3), to drive described platform be that the center is done pitching or rotation respectively with described luffing angle a and orientation angles b, obtains the output signal strength of luffing angle, orientation angles and the described aerial receiver of described antenna simultaneously, deposits database in.
4), according to the output signal strength of luffing angle, orientation angles and the described aerial receiver of the described antenna that obtains, antenna beamwidth is calculated in definition according to antenna beamwidth.
If signal power strength was Amax when the aerial receiver output signal power of antenna was the strongest, this obtains the luffing angle a and the orientation angles b of antenna constantly, so when the antenna luffing angle when a drops to a-a1, when the antenna receiver signal drops to the half of Amax, a-a1 is first pitching half-power point.Again with the antenna elevation angle degree when a is raised to a+a2, the aerial receiver signal drops to the half of Amax, a+a1 is second pitching half-power point, so, antenna is a1+a2 in the antenna beamwidth of pitch orientation.
Equally, when the orientation angles of antenna when b drops to b-b1, the aerial receiver signal drops to the half of Amax, b-b1 is first orientation half-power point; Again with the antenna bearingt angle when b forwards b+b2 to, the aerial receiver signal drops to the half of Amax, b+b2 is second pitching half-power point, antenna is b1+b2 in the antenna beamwidth of azimuth direction so.
The utility model has promptly been realized direct measurement demarcation antenna beamwidth by above-mentioned method, and demarcating with the near field, darkroom is to calculate the antenna beamwidth that obtains by measurement to compare, and the accuracy of demarcation is higher.Simultaneously, the utility model calibration facility is simple, does not need the darkroom, thereby cost, thereby has solved the bigger problem of investment of the construction test condition of darkroom mensuration antenna beam.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. one kind is the antenna beamwidth caliberating device of signal source with the sun, it is characterized in that, comprising:
Pitching azimuth rotating platform, described pitching azimuth rotating platform comprise the platform that is used to place antenna (12) (1) that is fixed on the support (6), divide into pitching motor (3), the azimuth-drive motor (11) of described platform pitching of control or orientation motion and gather luffing angle sensor (5), the orientation angles sensor (7) of described platform luffing angle and orientation angles at described support (6);
Transmission unit, transmit the control signal that drives described pitching motor (3), azimuth-drive motor (11), gather described luffing angle sensor (5), the luffing angle of orientation angles sensor (7) collection and the output signal strength of orientation angles and aerial receiver and be transferred to controlled processing unit;
Controlled processing unit is exported described control signal, and according to described luffing angle and orientation angles and aerial receiver signal intensity, antenna beamwidth is calculated in definition according to antenna beamwidth.
2. according to claim 1 a kind of be the antenna beamwidth caliberating device of signal source with the sun, it is characterized in that described pitching motor (3) is connected with described platform (1) by screw rod (2), pitching rotating shaft (4); Described azimuth-drive motor (11) connects described support (6) by transmission gear (10), orientation turning axle (9).
3. according to claim 2 a kind of be the antenna beamwidth caliberating device of signal source with the sun, it is characterized in that, described luffing angle sensor (5) is located in the described pitching rotating shaft (4), and described orientation angles sensor (7) is located on the described support (6).
4. according to claim 3 a kind of be the antenna beamwidth caliberating device of signal source with the sun, it is characterized in that described support (6) is fixed on the chassis (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220275249 CN203101525U (en) | 2012-06-12 | 2012-06-12 | An antenna beamwidth calibration device using the sun as a signal source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220275249 CN203101525U (en) | 2012-06-12 | 2012-06-12 | An antenna beamwidth calibration device using the sun as a signal source |
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| Publication Number | Publication Date |
|---|---|
| CN203101525U true CN203101525U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220275249 Expired - Fee Related CN203101525U (en) | 2012-06-12 | 2012-06-12 | An antenna beamwidth calibration device using the sun as a signal source |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692568A (en) * | 2012-06-12 | 2012-09-26 | 北京爱尔达电子设备有限公司 | Antenna beamwidth calibration method and device with sun as signal source |
| CN104037486A (en) * | 2014-06-04 | 2014-09-10 | 中国人民解放军总后勤部建筑工程研究所 | Antenna stand of anechoic chamber testing system of quasi single station |
| CN104406609A (en) * | 2014-12-05 | 2015-03-11 | 中国气象局气象探测中心 | Method and system for calibrating long-baseline infrared binocular imaging ceilometer |
| CN107508028A (en) * | 2017-09-25 | 2017-12-22 | 德清利维通讯科技股份有限公司 | A kind of microwave communication antenna assembly |
| CN108196232A (en) * | 2017-12-20 | 2018-06-22 | 雷象科技（北京）有限公司 | Sun method phased-array radar receiving channel calibration method |
| CN110907904A (en) * | 2019-11-14 | 2020-03-24 | 成都信息工程大学 | Solar method azimuth beam width correction method |
-
2012
- 2012-06-12 CN CN 201220275249 patent/CN203101525U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692568A (en) * | 2012-06-12 | 2012-09-26 | 北京爱尔达电子设备有限公司 | Antenna beamwidth calibration method and device with sun as signal source |
| CN104037486A (en) * | 2014-06-04 | 2014-09-10 | 中国人民解放军总后勤部建筑工程研究所 | Antenna stand of anechoic chamber testing system of quasi single station |
| CN104406609A (en) * | 2014-12-05 | 2015-03-11 | 中国气象局气象探测中心 | Method and system for calibrating long-baseline infrared binocular imaging ceilometer |
| CN104406609B (en) * | 2014-12-05 | 2017-02-22 | 中国气象局气象探测中心 | Method and system for calibrating long-baseline infrared binocular imaging ceilometer |
| CN107508028A (en) * | 2017-09-25 | 2017-12-22 | 德清利维通讯科技股份有限公司 | A kind of microwave communication antenna assembly |
| CN108196232A (en) * | 2017-12-20 | 2018-06-22 | 雷象科技（北京）有限公司 | Sun method phased-array radar receiving channel calibration method |
| CN110907904A (en) * | 2019-11-14 | 2020-03-24 | 成都信息工程大学 | Solar method azimuth beam width correction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20190612 |