FSS-Based Planar Integrated Millimeter Wave Filtered Horn Antenna

A horn antenna and substrate integrated waveguide technology, which is applied to waveguide horns, antennas, electrical components, etc., can solve problems such as increasing difficulty and complexity, unfavorable RF front-end integrated design, etc., to reduce processing costs and improve out-of-band suppression. Horizontal, highly integrated effects

Active Publication Date: 2022-04-29
HANGZHOU DIANZI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the design of FSS as a radome is often carried out independently of the antenna design, which increases the difficulty and complexity of the design, and is not conducive to the integrated design of the RF front-end

Method used

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  • FSS-Based Planar Integrated Millimeter Wave Filtered Horn Antenna
  • FSS-Based Planar Integrated Millimeter Wave Filtered Horn Antenna
  • FSS-Based Planar Integrated Millimeter Wave Filtered Horn Antenna

Examples

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Embodiment Construction

[0049] Below in conjunction with accompanying drawing, the implementation of technical scheme is further analyzed:

[0050] combine figure 1 , image 3 , Figure 5 , Figure 6 , the FSS-based planar integrated millimeter-wave filter horn antenna consists of three parts: frequency selective surface F, stepped waveguide horn W, and substrate-integrated waveguide cavity-backed patch R.

[0051] The frequency selection surface part is a 4*5 FSS unit array, each unit has a metal patch P1 on its upper surface, a metal grid G1 on the middle layer, and a metal patch P2 on its lower surface, and the three are from top to bottom There are two layers of dielectric boards, S1 and S2, in sequence. The metal patch P1, the metal grid G1, and the metal patch P2 all have regular hexagonal ring gaps, and are connected to the regular hexagonal ring gaps of adjacent units.

[0052] A solid aluminum block spliced ​​up and down by aluminum cuboids R1 and R2, with square grooves R3 and R4 cut o...

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Abstract

The invention discloses an FSS-based planar integrated millimeter wave filter horn antenna. The present invention consists of three components: a radiation structure, a feed structure and a frequency selective surface: the substrate integrated waveguide cavity-backed patch at the bottom layer is used as a waveform and impedance converter to excite the stepped waveguide horn located in the middle layer, and the stepped waveguide horn is used to pass Increase the radiation aperture to increase the gain of the antenna element, the frequency selective surface covered at the horn aperture and the defect ground structure located at the feed layer floor to achieve filtering performance, the antenna composed of these three parts has the function of a bandpass filter and a horn antenna . The gain curve of the filter antenna has the characteristics of flat in-band, obvious out-of-band suppression, and good edge selectivity. An RF front-end planar integrated module that can be applied to 5G mmWave communications.

Description

technical field [0001] The invention relates to an antenna structure, in particular to an FSS-based planar integrated millimeter wave filter horn antenna structure. Background technique [0002] As a research hotspot in the field of communication today, 5G communication has attracted extensive attention from domestic and foreign researchers. Millimeter wave technology can realize ultra-high-speed wireless data transmission by increasing the spectrum bandwidth, thus becoming one of the key technologies of 5G communication. In the millimeter wave frequency band, low power consumption, high integration, and multi-functional integrated design have become a development trend of wireless transmission systems. As two important components of the RF front-end, filters and antennas are usually designed independently, and then implemented through additional transmission line cascading, which not only increases the volume of the system, but also may cause mismatch and additional inser...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/02H01Q15/00
CPCH01Q15/0026H01Q15/0053H01Q13/02
Inventor 金华燕周乐凯罗国清俞伟良范奎奎
Owner HANGZHOU DIANZI UNIV
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