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SIC technology-based four-element dual-polarization microstrip antenna array

A microstrip antenna, dual-polarization technology, applied in the directions of antenna arrays, antenna arrays, and antennas that are energized separately, can solve problems such as port mutual interference, reduce back radiation, reduce cross-polarization levels, and reduce Effect of Cross Polarization Levels

Inactive Publication Date: 2018-09-04
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dual polarization of the unit will also cause mutual interference between ports, which is the problem of isolation and cross polarization.

Method used

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  • SIC technology-based four-element dual-polarization microstrip antenna array
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  • SIC technology-based four-element dual-polarization microstrip antenna array

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0029] This embodiment provides a four-element dual-polarized microstrip antenna array based on SIC technology, the center frequency is 9.6GHz, and its structure is as follows Figure 1 to Figure 2 As shown, it mainly includes:

[0030] Such as image 3 As shown, the dielectric substrate 17 is made of Rogers 5880 with a dielectric constant of 2.2 and a thickness of 1.016 mm. The bottom layer of the dielectric 17 is printed with four square parasitic patches 1 with a spacing of 0.87 times the wavelength of Rogers 5880, that is, 18.5 mm.

[0031] The dielectric substrate 18 is made of Rohacell HF51 foam with a dielectric constant of 1.07 and a thickness of 3mm.

[0032] Such as Figure 4 As shown, a dielectric substrate 16, the substrate adopts Rogers 5880 with a dielectric constant of 2.2, and a thickness of 1.016mm. The top layer of the die...

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Abstract

The invention relates to an SIC technology-based four-element dual-polarization microstrip antenna array, which comprises six layers of printed circuit boards and metal supports (6), wherein the lowersurface of a top layer of printed circuit board (17) is printed with rectangular parasitic patches (1); the upper surface of a third layer of printed circuit board (16) is printed with rectangular main patches (2) and a main patch layer reflection plate (11); the upper surface of a fourth layer of printed circuit board (15) is printed with a vertical-polarization feeder line (3) and a ring (8); the upper surface of a fifth layer of printed circuit board (14) is printed with a grounding plate (4); cross gaps (9), circular openings (19) and circular openings (20) are etched on the grounding plate (4); a horizontal-polarization feeder line (5) and a strip line (10) are printed on the lower surface of the fifth layer of printed circuit board (14); and the lower surface of the bottom layer ofprinted circuit board (12) is provided with an antenna bottom reflection plate (13). The SIC technology-based four-element dual-polarization microstrip antenna array has the advantages of wider bandwidth, higher port isolation and lower cross polarization level.

Description

technical field [0001] The invention relates to a microstrip antenna array, in particular to a four-unit dual-polarization microstrip antenna array based on SIC technology, which belongs to the technical field of antennas. Background technique [0002] With the wide application of wireless communication and radar detection, modern antennas need to meet the requirements of large-capacity communication and integration of sending and receiving, which requires the antenna to be able to achieve broadband, dual polarization and other characteristics. Microstrip antennas have the advantages of small size, light weight, and easy conformality, and some frequency band widening technologies, such as aperture coupling feeding, U-shaped slot patches, and high dielectric constant dielectric patches, can meet the bandwidth requirements of different applications. Therefore, designing dual-polarized antennas on the basis of microstrip antennas has become a major trend in antenna design. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/06H01Q21/00H01Q1/52
CPCH01Q1/523H01Q21/0006H01Q21/065
Inventor 王伟王敬郭猛黄平李壮龚琳舒刘爱萌魏震宇
Owner HARBIN ENG UNIV
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