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Broadband high-isolation low-cross-polarization dual-polarization microstrip antenna array based on SIW technology

A high isolation, microstrip antenna technology, applied in the field of antennas, can solve problems such as port mutual interference, and achieve the effect of increasing antenna capacitance, low profile, and high precision

Active Publication Date: 2017-01-11
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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  • Broadband high-isolation low-cross-polarization dual-polarization microstrip antenna array based on SIW technology
  • Broadband high-isolation low-cross-polarization dual-polarization microstrip antenna array based on SIW technology
  • Broadband high-isolation low-cross-polarization dual-polarization microstrip antenna array based on SIW technology

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Embodiment

[0042] This embodiment provides a wideband high-isolation low-cross-polarization dual-polarization microstrip antenna array based on SIW technology, the center frequency is 13.6GHz, and its structure is as follows Figure 1 to Figure 3 As shown, it mainly includes:

[0043]The dielectric substrate 16 is made of Rohacell HF51 foam with a dielectric constant of 1.07 and a thickness of 2.3mm. The top layer of the dielectric 16 is printed with four square parasitic patches 1 with a spacing of 0.75λ and a reflector I2.

[0044] The dielectric substrate 17 is Rogers 5880 with a dielectric constant of 2.2 and a thickness of 0.508mm. The top layer of the dielectric 17 is printed with four square main patches 3 with a spacing of 0.75λ and a reflector II4.

[0045] The dielectric substrate 18 is Rogers 5880 with a dielectric constant of 2.2 and a thickness of 0.254mm. The vertically polarized feeder 5 is printed on the top layer of the dielectric 18 .

[0046] Dielectric substrate 19, ...

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Abstract

The invention belongs to the field of the antenna technology, and particularly relates to a broadband high-isolation low-cross-polarization dual-polarization microstrip antenna array based on an SIW technology which can be used for various aspects, such as satellite communications, radar orientation, and synthetic aperture radar. The broadband high-isolation low-cross-polarization dual-polarization microstrip antenna array based on the SIW technology comprises 5 layers of printed circuit boards and 54 integrated metal props. In five layers of the printed circuit boards, the medium of the first layer of the printed circuit board and the medium 20 of the second layer of the printed circuit board are Rohacell HF51 foams, the medium of the third layer of the printed circuit board, the medium of the fourth layer of the printed circuit board and the medium of the fifth layer of the printed circuit board are Rogers 5880 medium boards. The antenna is designed on the basis of the microstrip antenna, and the antenna is integrated with the feed and radiation. The structure is simple, and the printed circuit technology is used for producing. The broadband high-isolation low-cross-polarization dual-polarization microstrip antenna array based on the SIW technology has the advantages of low section, light weight, high precision and low cost.

Description

technical field [0001] The invention belongs to the technical field of antennas, and specifically relates to a SIW technology-based broadband high-isolation low-cross-polarization dual-polarization microstrip antenna array that can be used in satellite communication, radar positioning, and synthetic aperture radar. 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...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q13/08H01Q19/10H01Q21/24
Inventor 王伟王敬刘爱萌魏震宇郭猛
Owner HARBIN ENG UNIV
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