Unlock instant, AI-driven research and patent intelligence for your innovation.

Improvement method of diffraction Gaussian beam analysis algorithm

A Gaussian beam and algorithm technology, applied in the fields of electromagnetic field characteristics, electrostatic field measurement, etc., can solve the problems of limited energy approximation of actual field distribution, inability to analyze, and inability to analyze quasi-optical network systems, etc., to improve the actual application value and field value Accurate and expand the effect of application scenarios

Inactive Publication Date: 2011-04-20
BEIJING UNIV OF POSTS & TELECOMM
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] It can be seen that in the analysis process of the DGBA algorithm, the subsequent steps need to be analyzed and calculated based on the field distribution of the traditional feed source in step 1. It can be seen that the above-mentioned Gaussian approximation is used to approximate the feed field distribution as Analytical method, because the analytical formula has limited energy approximation to the actual field distribution, thus limiting the analysis accuracy of the quasi-optical network system; and, for the field distribution of the traditional feed that cannot be approximated by the analytical formula, or for the The field distribution after the signal conditioning device existing between the two reflecting mirrors cannot be analyzed by using the above-mentioned Gaussian beam to approximate the feed field distribution as an analytical formula, so it is impossible to analyze the quasi-optical network system in the above two cases
In short, the existing method of expressing the field distribution as an analytical formula through Gaussian approximation cannot accurately analyze the field distribution in quasi-optical network systems

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
  • Improvement method of diffraction Gaussian beam analysis algorithm
  • Improvement method of diffraction Gaussian beam analysis algorithm
  • Improvement method of diffraction Gaussian beam analysis algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0125] Table 1 Quasi-optical network system parameters in the first embodiment

[0126] working frequency

54GHz

Working wavelength

5.555mm

new feed r

100mm

New feed Δx, Δy

2.5mm

Output plane r

150mm

Output plane Δx, Δy

2.5mm

[0127] Since people generally care more about the analysis of the electric field in practical work, this example only takes the analysis of the electric field as an example. The analysis of the magnetic field can be handled in the same way. Taking the corrugated horn feed as an example for the traditional feed source, the horn mouth is one working wavelength away from the plane of the new feed source in this example, then the new feed source in this example is the measured near field of the corrugated horn, which is linearly polarized field, and the direction of the electric field is the y direction. The relevant parameters of the design of the corrugated horn are: the far field opening...

Embodiment 2

[0150] Table 4 Quasi-optical network system parameters in the second embodiment

[0151] working frequency

[0152] Output plane r

[0153] In this embodiment, only the electric field is analyzed as an example. The corrugated horn feed is used as the traditional feed source as an example, and its horn mouth is one operating wavelength away from the plane of the new feed source in this example, so the new feed source in this example is the measured near field of the corrugated horn, which is a linear polarization field , the direction of the electric field is the y direction. The relevant parameters of the design of the corrugated horn are: the far field opening angle is 9 degrees; the attenuation value of the field at the far field opening angle is -6.0dB.

[0154] The implementation steps of the improved DGBA algorithm are as follows:

[0155] Step (1): The feed field is decomposed by windowed Fourier transform to obtain a series of individual Gaussian ...

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 discloses an improvement method of a diffraction Gaussian beam analysis (DGBA) algorithm and an analysis method of field distribution in a quasi-optical network system. A plane is designed between a device for emitting radiation field and a reflecting mirror as a novel feed source; a discrete field value of the novel feed source is obtained by field sampling on the plane; the field value of a sampling point is obtained by measurement or simulation calculation; and the existing feed source field analytic expression of Gaussian approximate representation is replaced by the novel feed source discrete field in the DGBA algorithm. The improved filed distribution analysis method and the DGBA algorithm adopting the filed distribution analysis method are applicable to analysis of any field distribution in the quasi-optical network system and comprises field distribution of the traditional feed source or field distribution of signal regulating devices passing between the two reflecting mirrors, thus expanding the application scenes of the DGBA algorithm, being more accurate of the field value obtained by measurement and improving the practical application value of the DGBA algorithm.

Description

technical field [0001] The invention relates to millimeter wave and submillimeter wave quasi-optical technology, in particular to an improved method for a diffraction Gaussian beam analysis algorithm. Background technique [0002] At present, millimeter-wave and submillimeter-wave quasi-optical technologies are widely used in the fields of earth exploration, atmospheric exploration, maritime satellites, and radio astronomy. A large number of radiation systems are used in the detection systems of millimeter-wave and submillimeter-wave quasi-optical technologies in various fields. These radiation systems are usually composed of multiple quasi-optical devices, which can usually be called quasi-optical network systems. [0003] In quasi-optical network analysis, in order to simulate and analyze the performance of the entire system, it is necessary to analyze and track the field distribution after each quasi-optical device. Since the feed source is at the beginning of the quasi-...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/08G01R29/14
Inventor 刘小明俞俊生陈晓东刘绍华王宇锋徐亮苏汉生魏钦刚麦源汪玮
Owner BEIJING UNIV OF POSTS & TELECOMM