Hybrid AMC tessellate structure loaded SIW cavity-backed slot antenna

A slot antenna and checkerboard-shaped technology, which is applied in the field of microwave antennas, can solve the problems of antenna height and the difficulty of controlling the profile of slot antennas, etc., and achieve the effect of enhancing radiation gain

Active Publication Date: 2018-01-16
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of the post-feeding waveguide, the overall profile of the antenna is relatively high, and the RCS suppression bandwidth of the slot antenna still has room for further improvement.
[0006] On the other hand, the profile control of the slot antenna is a very practical and difficult technical challenge

Method used

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  • Hybrid AMC tessellate structure loaded SIW cavity-backed slot antenna
  • Hybrid AMC tessellate structure loaded SIW cavity-backed slot antenna
  • Hybrid AMC tessellate structure loaded SIW cavity-backed slot antenna

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] This specific embodiment provides a SIW cavity-backed slot antenna loaded with a hybrid AMC checkerboard structure, and its side view, top view and bottom view are respectively as follows figure 1 , figure 2 and image 3 as shown, Figure 4 for figure 1Schematic diagram of the AA interface in middle, including upper dielectric substrate 1, lower dielectric substrate 2, two AMC periodic surfaces 3 and 4 with the same pattern and different floor structures, gap excitation patch 5, excitation probe 6, middle layer metal patch 7 , the bottom metal patch 8, the metal via hole 9 of the SIW square resonator, the probe joint 10, the circular via hole 11 on the middle layer metal patch 7, the radiation gap 12 and the circular hole on the bottom metal patch 8 Via 13;

[0032] The upper dielectric substrate 1 is located between the AMC period...

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PUM

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Abstract

The invention provides a hybrid AMC (Artificial Magnetic Conductor) tessellate structure loaded SIW (Substrate Integrated Waveguide) cavity-backed slot antenna, and belongs to the technical field of microwave antenna. The hybrid AMC tessellate structure loaded SIW cavity-backed slot antenna is a three-layer printed circuit board PCB structure, and includes a radiation slot, an SIW cavity and a periodic artificial magnetic conductor AMC surface with an opposite reflection phase. The hybrid AMC tessellate structure loaded SIW cavity-backed slot antenna utilizes the backward direction scattered wave constant amplitude inverse-phase offset principle to realize antenna RCS (Radar Cross-Section) suppression of X, K and Ku wave bands. Besides, the SIW cavity-backed structure can effectively reduce the profile size of the antenna, and the radiation characteristic of the slot antenna can generate enhanced effect because of influence of the periodic surface. The hybrid AMC tessellate structure loaded SIW cavity-backed slot antenna can be applied to boat-carrying, airborne, and vehicle communication systems, and can also be applied to an intelligent skinning system for realize the functions of stealth and communication.

Description

technical field [0001] The invention belongs to the technical field of microwave antennas, in particular to an SIW cavity-backed slot antenna loaded with a mixed AMC checkerboard structure. Background technique [0002] Panel antennas play an important role in both civilian and military applications due to their low cost, low profile, reliable performance, and ease of processing and integration. With the development of stealth and anti-stealth technology, in some special applications, such as intelligent skin communication system, the RCS reduction of the antenna has an urgent practical application demand. The most common methods of reducing antenna RCS are lumped / distributed element loading techniques and the use of radar absorbing materials to convert microwave radio frequency energy into heat, and the disadvantage of both of these methods is that they both deteriorate the radiation performance of the antenna; using bionic The in-band single-station RCS of the antenna can...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q13/18
Inventor 程友峰邵维丁霄金富隆
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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