Far-field parameter calibration device and calibration method for antenna

A parameter calibration and antenna technology, which is applied in the antenna far-field parameter calibration device and the field of calibration, can solve the problems of poor test accuracy, large calibration errors, and low work efficiency, and achieve a large test frequency range, wide adaptability, and error elimination. Effect

Active Publication Date: 2012-12-12
湖北航天技术研究院计量测试技术研究所
View PDF3 Cites 40 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the calibration of the antenna usually adopts the electromagnetic compatibility antenna calibration method. The calibration parameters of this method are incomplete, the calibration error is large, and it is not suitable for the actual use envir

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Far-field parameter calibration device and calibration method for antenna
  • Far-field parameter calibration device and calibration method for antenna
  • Far-field parameter calibration device and calibration method for antenna

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0048] Example one

[0049] Calibration objects: 3 ETS 3115 antennas, numbered 6262#, 6663#, 6675# respectively.

[0050] An antenna far-field parameter calibration device, comprising a receiver 1, a computer 2, a microwave anechoic chamber 3, a receiving antenna 4, a turntable 5, a transmitting antenna 6, a support 7 and a signal generator 8. The receiving antenna 4, the turntable 5, the transmitting The antenna 6, the support 7 are placed in the microwave darkroom 3, the receiving antenna 4 is set on the turntable 5 and placed on the longitudinal axis of the dark room, the transmitting antenna 6 is set on the support 7 and placed on the longitudinal axis of the dark room, and the microwave darkroom 3 It is a rectangular parallelepiped, and the microwave anechoic chamber 3 is covered with absorbing materials on all six sides. The axial dimension of the microwave anechoic chamber 3 meets the requirements of the far-field distance of the receiving and transmitting antennas. The cros...

Example Embodiment

[0090] Example two

[0091] Calibration object: 3 Xibao XB-WDB-0.4-3.5N antennas, serial numbers: 110321201#, 11032102#, 11032103#.

[0092] Calibration device: same as Example 1

[0093] Using the above antenna far-field parameter calibration device, the antenna far-field parameters are calibrated by the following method, the steps include:

[0094] S1. Precisely locate the zero position

[0095] A laser line meter is used to determine the horizontal center and vertical center of the receiving and transmitting antennas. At the same time, a laser rangefinder is used to test the distance between the receiving and transmitting antenna ports as 14.03m to ensure accurate positioning of the mechanical zero position of the receiving and transmitting antennas. The roll axis of the turntable scans point by point to determine the electrical zero position of the antenna, and eliminate the error caused by the inconsistency between the mechanical zero position and the electrical zero position of t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a far-field parameter calibration device and a far-field parameter calibration method for an antenna. The calibration device comprises a receiver, a computer, a microwave anechoic chamber, a receiving antenna, a turntable, a transmission antenna, a bracket and a signal generator, and is characterized in that the receiving antenna, the turntable, the transmission antenna and the bracket are arranged in the microwave anechoic chamber; the receiving antenna is arranged on the turntable, and is arranged on the spatial longitudinal axis of the anechoic chamber; the transmission antenna is arranged on the bracket, and is arranged on the spatial longitudinal axis of the anechoic chamber; the receiver is in communication connection with the computer; the signal output end of the computer is connected with the turntable and the signal input end of the signal generator respectively; the signal output end of the signal generator is connected with the signal input end of the transmission antenna; and the signal output end of the receiving antenna is connected with the signal input end of the receiver. According to the device and the method, electrical performance parameters of the antenna can be measured accurately, quickly and efficiently in real time. The device and the method are high in applicability and wide in frequency calibration range, and the measurement synthesis uncertainty can reach 0.21 to 0.49dB.

Description

technical field [0001] The invention relates to a parameter calibration device and a calibration method, in particular to an antenna far-field parameter calibration device and a calibration method. Background technique [0002] In order to ensure the electrical performance of the antenna, in addition to strict theoretical design and excellent production, it must be corrected based on actual test data. At present, the antenna calibration method usually adopts the electromagnetic compatibility antenna calibration method. The calibration parameters of this method are incomplete, the calibration error is large, and it is not suitable for the actual use environment of the missile antenna. In addition, during the test process, the data acquisition and the calculation of the drawing parameters of the direction map are mostly manual operations, which has low work efficiency, poor test accuracy, and takes a long time. Therefore, it is necessary to design an antenna far-field paramet...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01R29/10G01R31/00
Inventor 罗喜明吴传昕田春华黄品芳毛凡李雷杨小朋胡小洲
Owner 湖北航天技术研究院计量测试技术研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap