Correction method for far and near field comparison of spherical phased array antenna coordinates
A phased array antenna, array antenna technology, applied in antennas, design optimization/simulation, electrical components, etc., can solve problems such as consuming hardware resources and deteriorating beamforming quality, achieving simple and fast operation, improving reliability, and realizing simple method effect
Active Publication Date: 2022-04-12
10TH RES INST OF CETC
View PDF11 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The method is simple and reliable, consumes less hardware resources, and can solve the problem of poor beamforming quality caused by coordinate surveying and mapping accuracy errors in beamforming of spherical phased array antennas.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] refer to figure 1 , figure 2. According to the present invention, the vertical cylinder of the center of the spherical array antenna is divided into three equally spaced horizontal sections, and the far and near-field calibration antennas are arranged on each section. Arrange six near-field calibration antennas evenly to form six near-field calibration coverage areas a, b, c, d, e, and f. The angle between two adjacent near-field calibration antennas and the origin of the center of the spherical array antenna is 60 degrees; the far-field calibration antenna is arranged around the spherical array antenna to form the far-field calibration coverage area; the far-field calibration antenna strategy and the minimum distance selection algorithm between the near-field calibration antenna and the far-field calibration antenna are given, and the near-field calibration is corrected. Calibrate the coordinates of the antenna and the array element of the spherical phased array ant...
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
Login to View More Abstract
The invention proposes a spherical phased array antenna coordinate far and near field comparison correction method, which consumes less hardware resources and is simple and easy to implement. The present invention is realized through the following technical solutions: the vertical cylinder of the center of the spherical array antenna is divided into three equally spaced horizontal slices, and the far and near field calibration antenna is arranged on each slice, on each horizontal plane, on each horizontal plane The near-field calibration antennas are equally spaced with the center of the sphere on the tangential plane as the origin, and are arranged around the spherical array antenna to form six near-field calibration coverage area measurement site point near-field calibration antennas, and three far-field calibration coverage area far-field Calibrate the antenna; through the far-field test and near-field test, give the far-field and near-field comparison method to correct the array element coordinates; use the array element and near-field calibration antenna coordinate correction algorithm and the far- and near-field channel phase comparison algorithm and judgment strategy , correct and verify the coordinate test results of the array element and the near-field calibration antenna, and compare the calibration of the far-field and near-field array element channels to complete the correction of the spherical array antenna coordinates.
Description
technical field [0001] The invention relates to a spherical phased array antenna element and a method for comparing and correcting the far and near field coordinates of the near field calibration antenna. Background technique [0002] With the development of phased array radar technology, different forms, different bands and various scales of phased array antennas have been continuously developed and applied, and correspondingly various correction and measurement methods are also in continuous development. The phased array antenna is an antenna array composed of many array element channels, which mainly relies on the phase control of each array element to realize the rotation of the antenna beam pointing. Currently, there are three main testing methods for phased array antennas that are most widely used: far-field method, near-field method and compact field method. Each test method has its own advantages and disadvantages. For example, far-field measurement is suitable for ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01Q3/26G06F30/20
CPCH01Q3/267G06F30/20
Inventor 杜丹王文政扈景召陈煜航官劲
Owner 10TH RES INST OF CETC