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Broadband high gain Vivaldi antenna for loading grooved dielectric-slabs

A dielectric plate, high-gain technology, used in antennas, resonant antennas, electrical short antennas, etc., can solve problems such as no public reports, and achieve the effects of good repeatability, low cost, and improved radiation gain

Inactive Publication Date: 2017-02-22
YUNNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The wide and high-gain Vivaldi antenna of the load slotted dielectric plate designed by the present invention, through literature search, does not see the public report identical with the present invention

Method used

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  • Broadband high gain Vivaldi antenna for loading grooved dielectric-slabs
  • Broadband high gain Vivaldi antenna for loading grooved dielectric-slabs
  • Broadband high gain Vivaldi antenna for loading grooved dielectric-slabs

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Embodiment Construction

[0028] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

[0029] Such as figure 1 As shown, the broadband high-gain Vivaldi antenna loaded with a slotted dielectric plate in the present invention is composed of the following 6 parts: an intermediate dielectric plate 1, an upper dielectric plate 2, a lower dielectric plate 3, radiators 4, 5, and a feed unit structure 6, 7, rectangular slot array 8, 9, wherein:

[0030] a. The middle layer dielectric board 1 is a rectangular dielectric board, and the upper and lower layer dielectric boards 2 and 3 are rectangular dielectric boards with a linear gradient in thickness;

[0031] b. Radiators 4 and 5 with antipodal structure are printed on the upper and lower surfaces of the middle layer dielectric board 1, and the arc edges are gradually changed exponentially; the feed unit structures 6 and 7 are composed of SIW feed structure 6 and gradually defor...

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Abstract

The invention relates to a broadband high gain Vivaldi antenna for loading grooved dielectric-slabs, and belongs to the technical field of wireless communication. The broadband high gain Vivaldi antenna for loading the grooved dielectric-slabs comprise the upper-layer dielectric-slab, the middle-layer dielectric-slab and the lower-layer dielectric-slab, an exponential tapered line antipodal structure Vivaldi antenna of substrate integrated waveguide (SIW) feed is printed on the middle layer dielectric-slab, the upper-layer dielectric-slab and lower-layer dielectric-slab are symmetrically loaded on both sides of the middle-layer dielectric-slab, the thickness of the upper-layer dielectric-slab and the thickness of the lower-layer dielectric-slab are linearly-gradient, and the upper-layer dielectric-slab and the lower layer dielectric-slab are provided with periodically-gradient rectangular grooves. The broadband high gain Vivaldi antenna for loading the grooved dielectric-slabs have the advantages of being simple in structure, compact in size, low in cost, wide in band width, high in gain, stable in radiation characteristic and the like, and is applicable to the fields of spacecrafts, radars and the like.

Description

technical field [0001] The invention relates to a wide-band high-gain Vivaldi antenna loaded with a slotted dielectric plate, belonging to the technical field of wireless communication. Background technique [0002] The Vivaldi antenna is a gradual end-fire traveling wave antenna. It has been extensively studied for more than 30 years since it was proposed, especially in microstrip circuits. Microstrip Vivaldi antennas are used to form arrays and have been maturely used in satellite communications. , electromagnetic imaging, aircraft radar and other fields. Due to its tapered slot line structure, the Vivaldi antenna can have a very wide impedance bandwidth. In addition, it also has the advantages of low sidelobe and high gain. Compared with high-gain horn antennas, etc., the structure is simpler, and the size is small, and the manufacturing cost is low. [0003] In recent years, with the rise of millimeter-wave device research and the development of substrate integrated ci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q9/04H01Q13/08
CPCH01Q1/38H01Q9/0485H01Q13/085
Inventor 申东娅马超骏帅新芳向晶董明
Owner YUNNAN UNIV
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