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Antipodal Vivaldi antenna with substrate integrated double-ridge waveguide feed and application thereof

A substrate-integrated waveguide and substrate-integrated technology, which is applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problems of antenna efficiency reduction, limit the bandwidth of Vivaldi antenna, etc., and achieve the effect of low cut-off frequency

Inactive Publication Date: 2020-04-14
XIDIAN UNIV
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Problems solved by technology

[0004] In summary, the existing problems in the prior art are: in high-frequency applications, the ohmic loss and radiation loss of the microstrip line lead to a decrease in the efficiency of the antenna, and the substrate-integrated waveguide feed limits the bandwidth of the Vivaldi antenna

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  • Antipodal Vivaldi antenna with substrate integrated double-ridge waveguide feed and application thereof
  • Antipodal Vivaldi antenna with substrate integrated double-ridge waveguide feed and application thereof
  • Antipodal Vivaldi antenna with substrate integrated double-ridge waveguide feed and application thereof

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[0037] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] Aiming at the problems existing in the prior art, the present invention provides a substrate-integrated dual-ridge waveguide-fed dual-top Vivaldi antenna and its application. The present invention will be described in detail below in conjunction with the accompanying drawings.

[0039] Such as figure 1 As shown, the substrate-integrated double-ridge waveguide-fed Vivaldi antenna provided by the embodiment of the present invention includes: a metal ground plane, a feed structure, an antenna, and a dielectric substrate; the metal ground plane 7 located on the upper layer of the dielectric substrate 1; The upper layer ...

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Abstract

The invention belongs to the technical field of antennas, and discloses an antipodal Vivaldi antenna with a substrate integrated double-ridge waveguide feed and an application thereof, and the antennacomprises transition from a microstrip to a substrate integrated double-ridge waveguide, the substrate integrated double-ridge waveguide, an antipodal Vivaldi antenna radiation structure, a dielectric substrate, and a metal floor. According to the invention, the substrate integrated double-ridge waveguide is used for feeding, a microstrip line is transited to the substrate integrated double-ridgewaveguide through a trapezoidal gradual change structure, then the substrate integrated double-ridge waveguide is used for feeding the Vivaldi antenna, and finally the Vivaldi antenna radiates a signal. The substrate integrated double-ridge waveguide is adopted for feeding, so that the cut-off frequency is reduced, and the bandwidth is increased; wherein a bandwidth range is 11.22 GHz to 40 GHz,and a Ku frequency band, a K frequency band and a Ka frequency band are covered; the electrical size under the cut-off frequency is smaller than that of a conventional substrate integrated waveguide feed antipodal Vivaldi antenna, and miniaturization of the antipodal Vivaldi antenna is successfully achieved.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a dual-ridge waveguide-feeding dual-ridge Vivaldi antenna integrated with a substrate and its application. Background technique [0002] At present, the closest existing technology: In modern wireless communication systems, the antenna, as a unit for transmitting or receiving electromagnetic waves, can realize the mutual conversion between the free space electromagnetic field and the electromagnetic field of the guided wave system, so in radar systems, satellite navigation And medical equipment and other fields have been widely used. At present, with the continuous development of science and technology, the broadband and miniaturization of antennas has become a trend. [0003] The Vivaldi antenna was first proposed by Gibson in 1979. As a tapered, aperiodic, end-fire traveling wave antenna, it has theoretically infinite bandwidth. However, the bandwidth of the Vival...

Claims

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Application Information

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IPC IPC(8): H01Q1/50H01Q1/38H01Q1/48H01Q13/08
CPCH01Q1/38H01Q1/48H01Q1/50H01Q13/085
Inventor 邓敬亚曹润孙冬全雍婷郭立新
Owner XIDIAN UNIV
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