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Broadband dual-polarized microstrip antenna suitable for dual-mode operation of microwave and millimeter wave frequency bands

A technology of millimeter-wave frequency band and microstrip antenna, which is applied to the combination of antenna units with different polarization directions, so that the antenna can work in different bands at the same time, such as devices, antennas, etc. and other issues, to achieve the effect of wide-band working bandwidth, easy implementation, and simple structure

Pending Publication Date: 2022-07-01
SOUTHEAST UNIV
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AI Technical Summary

Problems solved by technology

By using feeding methods such as L-shaped probes and T-shaped feeders, the bandwidth of the microstrip antenna can be significantly improved, but it will bring disadvantages such as increased complexity of the feeding method and increased antenna profile.
Stacked microstrip antennas, E-shaped antennas, and microstrip antennas loaded with U-shaped slots also have a relatively wide operating bandwidth, but there are also high cross-polarization, unstable radiation patterns, and higher structural complexity than traditional microstrip antennas. shortcoming
At the same time, many ways to improve the bandwidth are in the millimeter wave frequency band. Due to reasons such as complex structure and limited processing accuracy, it is difficult to be widely used in engineering.

Method used

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  • Broadband dual-polarized microstrip antenna suitable for dual-mode operation of microwave and millimeter wave frequency bands
  • Broadband dual-polarized microstrip antenna suitable for dual-mode operation of microwave and millimeter wave frequency bands
  • Broadband dual-polarized microstrip antenna suitable for dual-mode operation of microwave and millimeter wave frequency bands

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Embodiment Construction

[0031] Below in conjunction with specific embodiments, the present invention will be further illustrated, and it should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. The modifications all fall within the scope defined by the appended claims of this application.

[0032] like figure 1 and image 3 As shown in the figure, a broadband dual-polarized microstrip antenna suitable for the 5G millimeter wave frequency band is mainly composed of an antenna body, a first layer of SICL composed of metallized holes 6 and metal layers 9-2, 9-3, and 9-4. Feeding network, second-layer SICL feeding network composed of metallized hole 6 and metal layers 9-4, 9-5, 9-6, third slot 3, fourth slot 4, fifth slot fed by coupling The slot 5 is composed of a square patch antenna unit 9-1 (low profile broadband antenna unit) loaded with the first slot 1 and the second slot 2. In the present invention, the m...

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Abstract

The invention discloses a broadband dual-polarized microstrip antenna suitable for a millimeter wave frequency band, the antenna is a square patch loaded with a first slot and a second slot which are crossed, and the antenna is coupled and excited by a substrate integrated coaxial line feed slot. The antenna has the advantages of being simple in structure, easy to process, wide in bandwidth, low in cross polarization in a designed frequency band, stable in radiation pattern and the like.

Description

technical field [0001] The invention relates to a broadband dual-polarized microstrip antenna in a 5G millimeter wave frequency band. The antenna is coupled and excited through a slot at the end of a Substrate Integrated Coaxial Line (SICL), and belongs to the technical field of antennas. Background technique [0002] Antennas are an important part of wireless communication systems. With the rapid development of modern wireless communication technology, especially the millimeter-wave technology in the fifth-generation communication, millimeter-wave antennas have attracted much attention. [0003] Because the dual-polarized antenna can not only meet the requirements of expanding the frequency band of the communication system, but also improve the capacity of the communication system, and at the same time, it can also reduce the number of antenna installations, and has been widely used. [0004] Traditional microstrip antennas have the advantages of low profile, low cost, smal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q9/04H01Q21/24H01Q5/28
CPCH01Q9/045H01Q9/0407H01Q21/24H01Q5/28H01Q21/0006
Inventor 余晨余海鹏无奇王海明
Owner SOUTHEAST UNIV
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