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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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  • 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 improve the performance of the active phased array radar system, the present invention proposes a modularized 8-unit L-shaped Array application method and application device

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

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Embodiment 1

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

[0053] see Figure 5-6 , the figure is the direction diagram of the angle of view of the two main cut planes of the rectangular array, that is, the antenna array, under the condition of the antenna element spacing λ / 2 (half the working wavelength). Theoretically, the spacing between sub-arrays is approximately equal to 1.4 wavelengths, which is greater than the theoretical unit spacing where grating lobes cannot be detected by pattern scanning. Grating lobes will appear after pattern scanning, but no grating lobes can be seen in the calculation results, indicating that this scheme is feasible.

Embodiment 2

[0055] see Figure 7 , similar to Embodiment 1, a 16*16 antenna array is spliced ​​by using square modules in the optional module set. Each square module has a total of 4*4 antenna elements, so 16 modules are required.

[0056] see Figure 8-9 , the figure is the direction diagram of the angle of view of the two main cut planes of the rectangular array, that is, the antenna array, under the condition of the antenna element spacing λ / 2 (half the working wavelength). Theoretically, the spacing between sub-arrays is approximately equal to 1.4 wavelengths, which is greater than the theoretical unit spacing where grating lobes cannot be detected by pattern scanning. Grating lobes will appear after pattern scanning, but no grating lobes can be seen in the calculation results, indicating that this scheme is feasible.

[0057] To sum up, the present invention proposes an application method based on modularized 8-unit L-shaped sub-arrays. By selecting 8 8-unit L-shaped sub-arrays, mo...

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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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