H face sectoral horn antenna including filter function

A horn antenna and filter technology, applied in the microwave field, can solve the problems that the metal horn antenna is difficult to planar integration, etc., and achieve the effects of high directivity, volume reduction, and production cost reduction

Inactive Publication Date: 2008-05-14
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of antenna can well retain the highly directional and high-gain vertically polarized radiation characteristics of metal hor

Method used

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  • H face sectoral horn antenna including filter function
  • H face sectoral horn antenna including filter function
  • H face sectoral horn antenna including filter function

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Embodiment Construction

[0020] As shown in Figure 1, the H-face fan-shaped horn antenna including the filter function includes a Rogers5880 dielectric substrate 10 with a thickness of 1.575 mm, and the two sides of the dielectric substrate 10 are coated with metal layers, which are respectively an upper metal layer 2 and a lower metal layer 9, Wherein the lower metal layer 9 is used as the stratum. As shown in Figure 2, the upper metal layer 2 is etched with a microstrip line 1 for feeding and a ladder converter 8 in the form of a microstrip. Extend outward, as microstrip line 1. The length and width of the microstrip line 1 are 6 mm and 5 mm respectively, the length of the trapezoidal converter 8 is 6 mm, and the width of the end connected to the metal layer 2 on the integrated waveguide on the substrate is 4.2 mm. Through the upper metal layer 2 , the dielectric substrate 10 and the lower metal layer 9 , a through hole with a diameter of 1 mm is opened, and the inner wall of the through hole is pl...

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Abstract

The invention relates to an H-plane fan-shaped horn antenna including a filter function. The existing horn antenna has a large volume, cannot be integrated in a plane, and has high processing costs. In the invention, a metal layer is plated on both sides of a dielectric substrate, and the upper metal layer is etched for a microstrip line and a microstrip converter for power feeding. Through the upper metal layer, the dielectric substrate and the lower metal layer, a plurality of metallized through holes arranged in a circle are opened to form a substrate integrated waveguide and an H-plane fan-shaped horn. Four perturbation metallization through holes are opened on the central axis of the fan-shaped horn opening area of ​​the H surface through the entire substrate, and are used for adjusting impedance matching and forming filtering functions. The new structure uses substrate-integrated waveguide technology to realize the function equivalent to the traditional metal H-plane fan-shaped horn antenna on a common dielectric substrate, and successfully integrates the filtering function of the traditional inductive metal pillar waveguide filter. The dual-function integrated module has a very compact volume, and the entire structure can be manufactured by a low-cost PCB process, and can be seamlessly integrated with the system.

Description

technical field [0001] The invention belongs to the field of microwave technology, and relates to an H-plane fan-shaped horn antenna including a filter function based on a substrate integrated waveguide technology, which can be used as a radio frequency transceiver front-end antenna and applied to wireless communication occasions. As a planar antenna, it is not only a dual-function integrated module of filter and antenna, but also different from most planar antennas, it is an antenna that provides vertical polarization and can be used in some special occasions. Background technique [0002] As a standard antenna widely used in antenna testing and other occasions, the traditional metal horn antenna has the advantages of high gain, good directivity, simple structure, and easy design and manufacture. However, the shortcomings of this antenna are also obvious, such as large volume, complicated connection with subsequent circuits, and inability to integrate with the circuit plane...

Claims

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Application Information

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IPC IPC(8): H01Q13/00H01Q13/02H01P1/20
Inventor 罗国清孙玲玲
Owner HANGZHOU DIANZI UNIV
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