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Fully parallel slot array antenna based on a single-layer substrate integrated waveguide

A substrate-integrated waveguide and slot array antenna technology, applied in slot antennas, specific array feeding systems, antennas, etc., can solve problems such as reducing the size of the waveguide section, suppress the influence of surface waves and leaky wave losses, and improve matching. bandwidth, the effect of improving radiation bandwidth

Active Publication Date: 2018-11-06
XIAMEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this single-layer structure greatly reduces the cross-sectional size of the waveguide, which is a great breakthrough in the miniaturization of the antenna.

Method used

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  • Fully parallel slot array antenna based on a single-layer substrate integrated waveguide
  • Fully parallel slot array antenna based on a single-layer substrate integrated waveguide
  • Fully parallel slot array antenna based on a single-layer substrate integrated waveguide

Examples

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Embodiment Construction

[0041] The following embodiments will further illustrate the present invention in conjunction with the accompanying drawings.

[0042] This embodiment is a fully parallel slot array antenna based on a single-layer substrate integrated waveguide (SIW). A 16×16 array element structure is selected, and the array antenna works in the V-band, and adopts a central back-feed feed with a center frequency of 61.5GHz.

[0043] see Figure 1~3 , the 16×16 antenna consists of a lower substrate integrated waveguide layer 2 (thickness h=0.762mm) and a metal grid layer 3 with a periodic air cavity 4 on the upper layer (thickness is t c = 1.24mm), the substrate-integrated waveguide layer and the metal grid layer are connected through a radiation gap 5 (thickness t=35um), and the substrate-integrated waveguide layer of the lower layer is integrated with a cascaded T-shaped power divider. feeder network. The incident electromagnetic wave enters the substrate integrated waveguide layer 2 from...

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Abstract

A fully parallel slot array antenna based on a single-layer substrate integrated waveguide relates to a waveguide slot antenna. A low substrate integrated waveguide layer and an upper metal grid layercontaining a periodic air cavity are provided; A substrate integrated waveguide layer and a metal grid layer are connected through a radiation slot, the substrate integrated waveguide layer integrates a feed network composed of cascaded T-shaped power dividers. The incident electromagnetic wave enters the substrate integrated waveguide layer from the antenna input and reaches each radiation slotthrough the feed network composed of cascaded T-shaped power dividers, passes through the air cavity in the metal grid layer and finally radiates to the outer space.

Description

technical field [0001] The invention relates to a waveguide slot antenna, in particular to a full-parallel slot array antenna based on a single-layer substrate integrated waveguide. Background technique [0002] The waveguide slot antenna has the characteristics of dielectric loss and radiation loss, so it has high efficiency, compact structure, high power capacity, etc. It is easy to achieve wide frequency band, high gain, and low sidelobe performance. It is widely used in aerospace and radar communication systems. [0003] Common slots include inclined slots on the narrow side of the waveguide, transverse slots and longitudinal slots on the wide side of the waveguide, and inclined slots in the center of the wide side of the waveguide. The oblique slots on the narrow wall and the longitudinal slots on the wide wall are equivalent to the parallel admittance on the transmission line, and the transverse slots on the wide wall and the oblique slots on the center are equivalent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/50H01Q13/10H01Q21/00
CPCH01Q1/36H01Q1/50H01Q13/10H01Q21/0006
Inventor 张淼段保权广川二郎柳清伙
Owner XIAMEN UNIV
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