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Integrated Cylindrical Conformal Phased Array Antenna

An array antenna and cylinder technology, applied in the field of integrated cylindrical conformal phased array antennas, can solve the problems of heavy weight, high cost and large volume, and achieve the effects of light weight, low cost and small volume

Active Publication Date: 2020-12-18
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an integrated cylindrical conformal phased array antenna, which solves the problems of large volume, heavy weight and high cost of the existing conformal phased array system

Method used

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  • Integrated Cylindrical Conformal Phased Array Antenna
  • Integrated Cylindrical Conformal Phased Array Antenna
  • Integrated Cylindrical Conformal Phased Array Antenna

Examples

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Embodiment 1

[0034] like figure 1 As shown, an integrated cylindrical conformal phased array antenna with an overall array of 32*8 divides the azimuth dimension of 360° into 4 sectors, and each sector covers a 90° range. In each sector, It is an 8*8 array, and a row of array elements is used as a sub-array.

[0035] like figure 2 As shown, the integrated antenna unit based on the cavity structure designed by the present invention includes an upper PCB dielectric board, a lower PCB dielectric board, a metal patch, a metal bonding ring, an air cavity and a metallized via hole, wherein the upper and lower layers of the PCB dielectric The board is fixed by a metal bonding ring in the middle, and a part of each of the two PCB dielectric boards is etched to form an air cavity to reduce the dielectric constant. Rectangular metal patches are printed on the outer surface of the upper PCB dielectric board, and metallized via holes are periodically placed around the lower dielectric board to form ...

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PUM

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Abstract

The invention discloses an integrated cylindrical conformal phased array antenna. The invention can realize 360° coverage of the azimuth dimension. The whole array is divided into 4 sectors, one sector covers a range of 90°, and each column is regarded as a sub-array , to carry out modular processing to reduce the number of interfaces and facilitate maintenance. The front end of the phased array antenna mainly includes an integrated antenna unit based on a cavity structure, a multifunctional integrated T / R chip, a radio frequency power division network, and a sum difference network. By utilizing integrable array elements, integrated T / R chips and sub-array modular design, the integrated cylindrical conformal phased array antenna of the present invention has high integration degree, convenient processing and maintenance, and low cost.

Description

technical field [0001] The invention relates to phased array radar system technology, in particular to an integrated cylindrical conformal phased array antenna. Background technique [0002] Conformal phased array antenna is an important direction in the development of phased array antenna technology. Install each unit in the array antenna on the surface of the platform so that the surface of the array antenna matches the shape of the platform to form a "conformal array antenna". Compared with the traditional planar array, the conformal phased array has better scanning beam characteristics in terms of scanning range and simultaneous multiple targets. [0003] Commonly used conformal phased array elements use ordinary microstrip patch elements, and the beam width is narrow, which limits the range of phase sweep angles. At the same time, the traditional T / R module adopts a "brick" structure with a large vertical dimension, which causes problems such as large volume, heavy we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/20H01Q23/00H01Q1/36H01Q1/50H01Q1/52
CPCH01Q1/36H01Q1/50H01Q1/52H01Q21/205H01Q23/00H01Q1/523
Inventor 王昊丁娟娟权双龙徐达龙王岩
Owner NANJING UNIV OF SCI & TECH