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Vertical polarization directional-printing filtering antenna

A filtering antenna and vertical polarization technology, applied in the field of communication technology, can solve the problems of strong spurious radiation and large loss of feeding network, etc., and achieve the effect of avoiding loss

Inactive Publication Date: 2012-06-27
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the frequency increases, such as in the Ku band, the complex feed network will cause problems such as large loss and strong spurious radiation

Method used

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  • Vertical polarization directional-printing filtering antenna
  • Vertical polarization directional-printing filtering antenna
  • Vertical polarization directional-printing filtering antenna

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Embodiment Construction

[0026] The present invention will be described below with reference to the accompanying drawings.

[0027] The filter antenna in the present invention has vertical polarization directional radiation characteristics. The radiation part of the filter antenna adopts a series-fed microstrip patch array. The number of microstrip patches will directly determine the radiation gain of the filter antenna. The more the number of microstrip patches, the higher the gain of the filter antenna. It has vertical polarization directional radiation characteristics and good cross polarization characteristics. The filter part of the filter antenna adopts the SIW inductive window filter. Both the radiation part and the filter part are planar structures, which can be manufactured by standard PCB technology, easy to implement, easy to integrate, high precision, and low cost, especially in high frequency bands, such as Ku band, which can effectively solve the problem of small circuit size and diffic...

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Abstract

The invention relates to a vertical polarization directional-printing filtering antenna, which comprises a three-layer structure, wherein the middle layer is a medium layer; the front side of the medium layer is an upper-surface metal layer (1); all the back of the medium layer is a metal layer which is called a lower-surface metal layer; one end of the upper-surface metal layer (1) is connected with a microstrip line (4); the microstrip line (4) is connected with a SIW (Substrate Integrated Waveguide) transmission line by a microstrip transition line (5); the SIW transmission line is provided with an SIW inductive window filter coupling window (8) formed by a metallized through hole (7) and with an SIW inductive window filter resonant cavity (9); the SIW transmission line is connected with a crossfeed microstrip patch array by a graded-index microstrip line (6); and the crossfeed microstrip patch array is formed by the feeding of a metal patch (2) by a metal connecting line (3). The antenna is easy to manufacture, has high machining precision and is especially suitable for high frequency, such as a Ku waveband.

Description

technical field [0001] The invention belongs to the application field of communication technology, and in particular relates to a vertically polarized directional filter antenna. The vertical polarization directional filter antenna is a joint design of a radiation array with vertical polarization directional radiation characteristics and a Substrate Integrated Waveguide (SIW) filter. While maintaining the vertical polarization directional radiation characteristics, the filter antenna It can filter out spurious signals outside the operating frequency band very well. Background technique [0002] In recent years, wireless communication technology has developed rapidly and has been widely used. The antenna is a key component of the wireless communication system, and the directional antenna has the characteristics of high gain within a certain range of radiation angles. Modern communication systems require antennas that are low cost, easy to fabricate, and easy to integrate wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q13/08H01Q21/00H01P1/20H01P1/203
Inventor 余晨洪伟蒯振起
Owner SOUTHEAST UNIV
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