Reconfigurable four-section Gamma-shaped winding multi-fingered electromagnetic band gap structure

A technology of electromagnetic bandgap structure and partition, applied in the direction of circuits, electrical components, antenna coupling, etc., can solve the problems of large structure and no way to use, and achieve the effect of good adjustability and meet application requirements.

Active Publication Date: 2016-09-28
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its structure is too large, and in many environments

Method used

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  • Reconfigurable four-section Gamma-shaped winding multi-fingered electromagnetic band gap structure
  • Reconfigurable four-section Gamma-shaped winding multi-fingered electromagnetic band gap structure
  • Reconfigurable four-section Gamma-shaped winding multi-fingered electromagnetic band gap structure

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[0078] The following describes the present invention in detail with reference to the drawings and specific embodiments, but it is not intended to limit the present invention.

[0079] Such as Figure 1A with Figure 1B As shown, it is a schematic top and side view of the first surface of the preferred embodiment of the present invention. The side length of the first surface 100 of the dielectric substrate is L1, and an electromagnetic band gap structure is distributed thereon. The structure is composed of a plurality of square electromagnetic band gap structure units 101, the unit spacing L2 is the same, and there are diodes 102 between the units. The thickness of the dielectric substrate 103 is L3.

[0080] Such as figure 2 As shown, it is a schematic top view of the second surface of the preferred embodiment of the present invention. A metal plate 201 and a bias circuit 202 are mounted on the second surface 200 of the dielectric substrate, the metal plate is connected to the gro...

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Abstract

The invention discloses a reconfigurable four-section Gamma-shaped winding multi-fingered electromagnetic band gap structure, and the structure is a symmetric structure, employs a coaxial feed mode, and consists of a plurality of square electromagnetic band gap structure units, wherein the intervals of the units are the same. Diodes are disposed between the units. The square electromagnetic band gap structure units are divided in four equal-area regions in vertical and horizontal directions, and the center of each unit is provided with a metalized via hole, so as to increase the equivalent inductance of the structure. The structure employs four metal arms, and the four metal arms respectively carry out Gamma-shaped extension in the four regions. Each bending part of a paster forms a metal finger extending towards the boundary till to the boundary. Therefore, the total length of the broken lines from the centers of the units to the four corners is increased, thereby increasing the current paths, and achieving a miniaturization purpose. The structure can reduce the size, and achieves the stop band reconfigurable demands of different frequency bands.

Description

Technical field [0001] The invention relates to a Γ-shaped two-dimensional electromagnetic band gap structure, in particular to a reconfigurable four-zone Γ-shaped winding multi-finger electromagnetic band gap structure. Background technique [0002] With the development of communication technology, antennas are used more frequently in various devices, and the requirements for antenna performance are getting higher and higher. In order to obtain greater gain and to facilitate adjustment of the antenna's receiving direction, antenna arrays are often used in practice to solve such problems. However, in the use of antenna arrays, since the working frequency bands of each antenna are the same or similar, mutual coupling will occur between the antennas, that is, the current on one antenna will induce current on the other antenna, which affects the gain and pattern of the antenna array. Such performance makes one or more parts of the antenna array unable to work normally. Therefore, ...

Claims

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Application Information

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IPC IPC(8): H01Q1/52
CPCH01Q1/523
Inventor 张岩王立伟张禄鹏于晓萌孔令宇李武涛郎荣玲秦红磊
Owner BEIHANG UNIV
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