Eight-unit L-shaped subarray application method and application device based on modularization

An application method and modular technology, applied in the manufacture of antenna array devices, electrical components, antenna arrays, etc., to achieve the effects of good fit, high degree of realization, and wide application range

Inactive Publication Date: 2016-07-13
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of scanning grating lobes of the antenna pattern caused by reducing the active components of the active phased array antenna and impr

Method used

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  • Eight-unit L-shaped subarray application method and application device based on modularization
  • Eight-unit L-shaped subarray application method and application device based on modularization
  • Eight-unit L-shaped subarray application method and application device based on modularization

Examples

Experimental program
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Example Embodiment

[0051] Example 1

[0052] See Figure 4 , Splice the square modules into a 12*20 antenna array by randomly selecting from the optional set of modules. Each square module has 8*8 antenna units, so 15 modules are required. Calculate the far-field pattern of the array antenna to determine the antenna array layout plan.

[0053] See Figure 5~6 , The figure is a rectangular array, that is, the antenna array in the case of the antenna element spacing λ / 2 (half the working wavelength) of the two main section angle of view. Theoretically, the spacing between the sub-arrays is approximately 1.4 wavelengths, which is greater than the theoretical cell spacing where the grating lobes cannot be scanned by the pattern. The grating lobes will appear after the pattern is scanned, but no grating lobes are found in the calculation results, indicating that this scheme is feasible.

Example Embodiment

[0054] Example 2

[0055] See Figure 7 , Similar to Embodiment 1, the square modules in the optional module set are used to splice into a 16*16 antenna array. Each square module has 4*4 antenna units, so 16 modules are required.

[0056] See Figure 8-9 , The figure is a rectangular array, that is, the antenna array in the case of the antenna element spacing λ / 2 (half the working wavelength) of the two main section angle of view. Theoretically, the spacing between the sub-arrays is approximately 1.4 wavelengths, which is greater than the theoretical cell spacing where the grating lobes cannot be scanned by the pattern. The grating lobes will appear after the pattern is scanned, but no grating lobes are found in the calculation results, indicating that this scheme is feasible.

[0057] To sum up, the present invention proposes a modularized 8-unit L-shaped sub-array application method, selecting 8 8-unit L-shaped sub-arrays, and using a suitable splicing method can achieve more tha...

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Abstract

The invention discloses an eight-unit L-shaped subarray application method and an application device based on modularization. The method comprises the steps: eight eight-unit L-shaped subarrays are selected, and the eight eight-unit L-shaped subarrays can realize 8*8 square modules with different internal splicing structures and same outlines; a plurality of 8*8 square modules are formed; 20 kinds of 8*8 square modules made of the random-distributed L-shaped subarrays are selected from a plurality of 8*8 square modules and serve as a module selectable set; in the module selectable set, a plurality of 8*8 square modules are randomly selected, and the selected modules are spliced into a target antenna array; according to an array antenna far-field pattern superposition principle, a target antenna array pattern assessment array organizing method is calculated, if the performance of the target antenna array pattern is suitable for index requirements, the splicing process is finished, otherwise, another splicing method is reselected until the respliced target antenna array satisfies the index requirements. The invention also discloses the device corresponding to the method.

Description

technical field [0001] The invention belongs to the technical field of array antennas, and in particular relates to an application method of an 8-unit L-shaped sub-array based on modularization. The invention can be used in an active phased array radar system. Background technique [0002] With the rapid development of modern radar technology, the requirements of radar in space surveillance and detection, theater early warning and attack assessment, combat operation plan and combat plan require active phased array antennas to develop in the direction of large-scale and broadband work. (The electrical size is the physical size of the antenna relative to the working frequency wavelength) to improve system performance such as radar resolution and power. Although the cost of phased array radar has dropped significantly with the development of science and technology and technological progress, it is still daunting. Huge equipment and power consumption are important factors affect...

Claims

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Application Information

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IPC IPC(8): H01Q21/00
CPCH01Q21/00H01Q21/0087
Inventor 侯田孙立春李帅白晓慧沈静波
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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