Antipodal Vivaldi antenna based on gradual change type guide sheet loading

A leading piece, gradient technology, applied in the direction of the antenna grounding switch structure connection, radiating element structure, circuit, etc., can solve the problem of difficult to further improve the radiation gain and directivity of the Vivaldi antenna, and achieve easy large-scale processing. Production, simple structure, the effect of improving return loss

Inactive Publication Date: 2020-02-18
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is difficult to further improve the radiation gain and directivity of t

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  • Antipodal Vivaldi antenna based on gradual change type guide sheet loading
  • Antipodal Vivaldi antenna based on gradual change type guide sheet loading
  • Antipodal Vivaldi antenna based on gradual change type guide sheet loading

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as figure 1 EGSA, figure 2 As shown in the GPA, the GPA provided by the present invention includes a dielectric substrate 1, a metal radiation sheet 2, a microstrip balun 3, an elliptical groove line 4, an index gradient groove line 5, a corrugated index gradient groove (EGS) 6, and a gradient type Lead to slice (GP)7. Metal radiation pieces 2 are respectively fixed on the top surface and bottom surface of the dielectric substrate 1, and the microstrip balun used for impedance matching is composed of linear tapered microstrip lines and 4 metal patches with elliptical groove lines. The metal radiating sheet 2 is provided with a trumpet-shaped opening and an exponentially changing groove line 5 symmetrical to its horizontal central axis, and the outer wall of the metal radiating sheet 2 is provided with a corrugated exponentially c...

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Abstract

The invention discloses an antipodal Vivaldi antenna based on gradual change type guide sheet loading. A gradual change type guide sheet is loaded at an opening of an EGSA, and the structure is defined by a three-point arc line and a straight line. A GPA antenna comprises a dielectric substrate, metal radiation sheets, a microstrip balun, an elliptical slot line, an exponential gradual change slotand a gradual change guide sheet; the metal radiation sheets are respectively fixed on the top surface and the bottom surface of the dielectric substrate; the impedance matching microstrip balun is composed of a linear gradual change microstrip line and a metal patch with an elliptical slot line; the metal radiation sheet is provided with an exponential gradual change groove line with a horn-shaped opening, the exponential gradual change groove line is symmetrical about the horizontal central axis of the horn-shaped opening, the outer side wall of the metal radiation sheet is provided with the corrugated exponential gradual change groove, and a GP is loaded at the opening of the EGSA.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a Vivaldi antenna loaded on the basis of gradient guide slices. Background technique [0002] With the development of communication technology, antennas with broadband, high gain, and good directivity have attracted more and more attention. The Vivaldi antenna, that is, the exponentially tapered slot antenna, is an end-fired gradient slot antenna proposed by Gibson in 1979. Its current is concentrated and distributed near the exponentially changing slot line, and slot lines of different widths correspond to different frequencies of radiation. electromagnetic waves. In theory, this antenna can achieve a very wide operating bandwidth. In addition, the Vivaldi antenna has high gain and good end-fire performance. Therefore, it is widely used in communication and electronic countermeasure systems. However, it is difficult to further improve the radiation gain and dire...

Claims

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Application Information

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IPC IPC(8): H01Q13/06H01Q1/38H01Q1/50
CPCH01Q1/38H01Q1/50H01Q13/06
Inventor 杜伯学宁江涛孔晓晓
Owner TIANJIN UNIV
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