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Filter antenna and wireless communication equipment

A technology for filtering antennas and defect structures, applied in the field of radio frequency communication, can solve problems such as reducing antenna performance, and achieve the effects of high roll-off, no reduction in insertion loss, and high filtering performance

Active Publication Date: 2022-01-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above antenna needs to cascade additional filters, and adding filters will bring additional insertion loss and reduce antenna performance

Method used

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  • Filter antenna and wireless communication equipment
  • Filter antenna and wireless communication equipment
  • Filter antenna and wireless communication equipment

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Experimental program
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Embodiment Construction

[0025] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the embodiments of the present application. However, the embodiment of the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the embodiment of the present application. EXAMPLE LIMITATIONS.

[0026] In the description of the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front" , "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockw...

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Abstract

The present application relates to a filter antenna and a wireless communication device. The filter antenna includes a feed network arranged in layers, a metal ground and a feed patch, and a plurality of short-circuit patches coplanar with the feed patch; The patch is connected to the metal ground through the short-circuit column; the feed patch is connected to the feed network through the feed column; wherein, the feed patch includes a first defect structure group and a second defect structure composed of a plurality of first defect structures group; the first defect structure group is symmetrically arranged on both sides of the straight line where the feeding column in the first polarization direction is located; the second defect structure group is symmetrically arranged on both sides of the straight line where the feeding column is located in the second polarization direction; multiple The shorting patches are respectively disposed in each first defect structure. The technical solutions provided by the embodiments of the present application can avoid additional insertion loss caused by additional filters without degrading antenna performance.

Description

technical field [0001] The present application relates to the technical field of radio frequency communication, in particular to a filter antenna and wireless communication equipment. Background technique [0002] With the rapid development of wireless communication technology, the wireless communication system is also developing in the direction of miniaturization, integration and multi-function. In the radio frequency front-end of the wireless communication system, the filter is an indispensable device, and the antenna is an important device for transmitting and receiving wireless signals, and the setting of the filter and the antenna affects the integration degree and system index of the system. [0003] Traditionally, in wireless communication systems, the antenna is used as a load of the filter and cascaded with the filter; or the antenna is used as the last resonator of the filter, and at the same time it is used as a feed patch to send or receive signals, so as to rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/48H01Q1/50H01Q15/00
CPCH01Q1/48H01Q1/50H01Q15/0053
Inventor 章秀银杨圣杰姚树锋薛泉
Owner SOUTH CHINA UNIV OF TECH