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A substrate-integrated waveguide pyramid horn antenna and its design method

A technology that integrates waveguides and horn antennas on substrates. It is applied in the directions of waveguide horns, antennas, and electrical components. It can solve the problem of increasing demand for low return loss and achieve the effect of low return loss.

Active Publication Date: 2019-04-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] SIW pyramid horn antenna, as a combination of rectangular waveguide pyramid antenna and SIW, has many advantages, including SIW pyramid part and SIW transmission line part, but the development of existing technology has intensified the demand for its low return loss

Method used

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  • A substrate-integrated waveguide pyramid horn antenna and its design method
  • A substrate-integrated waveguide pyramid horn antenna and its design method
  • A substrate-integrated waveguide pyramid horn antenna and its design method

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings.

[0021] SIW pyramidal horn antenna, the specific parameters are w1=10.24mm, l1=7.5mm, d=0.8mm, p=1.5mm, w2=18mm, h2=30mm, l2=20mm, w1 is the width of SIW transmission line, L1 is SIW transmission line length, d is the radius of the through hole, p is the pitch of the through hole, the thickness of the substrate is 1mm, the thickness of the copper layer is 0.0175mm, w2 is the wide side of the pyramid horn, h2 is the narrow side of the pyramid horn, L2 is the pyramid horn length. Modeling and simulation in HFSS shows that the return loss is greater than 13dB within 8.5GHz-12GHz.

[0022] Model in HFSS, establish a relative coordinate system on the SIW pyramidal horn antenna, use the quadratic function y=12.5*x*x, 20≤x≤30mm to make a curve, and then translate along the x and y axes, take D1=5mm , D2=1mm, and then make the curve symmetrically...

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Abstract

The invention belongs to the field of microwave passive devices, in particular to a substrate integrated waveguide broadband pyramidal horn antenna and a design method thereof. Due to the complicated calculation of the impedance of the pyramid horn and the large difference from the impedance of the substrate integrated waveguide, the present invention cuts off the copper layer on the H surface of the SIW pyramid horn antenna by using a quadratic function curve, thereby reducing the return loss . Compared with the existing SIW pyramidal horn antenna, the invention realizes lower return loss. It can be applied in 8GHz to 11GHz, and the return loss is greater than 16dB.

Description

technical field [0001] The invention belongs to the field of microwave passive devices, relates to microwave integration technology, in particular to a substrate-integrated waveguide pyramid horn antenna and a design method thereof. Background technique [0002] As we all know, the rectangular waveguide has many advantages compared with the general transmission line, but its three-dimensional structure is difficult to apply in the planar structure. In recent years, some scholars have proposed the concept of substrate-integrated waveguide (SIW), which solves this difficulty. This new type of waveguide is composed of two rows of metal through holes processed on the dielectric substrate and the dielectric substrate. It retains many advantages of the traditional rectangular waveguide, such as high power capacity and high Q value. Some advantages of belt transmission lines, such as: low profile, small size, light weight, low price, easy integration with other planar circuits, et...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/02
CPCH01Q13/0283
Inventor 汪晓光肖阳李丽华方健成田伟成张开宁
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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