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Filtering antenna and wireless communication device

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, high filtering performance, and no reduction in insertion loss

Active Publication Date: 2021-10-12
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Filtering antenna and wireless communication device
  • Filtering antenna and wireless communication device
  • Filtering antenna and wireless communication device

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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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PUM

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Abstract

The invention relates to a filtering antenna and a wireless communication device. The filtering antenna comprises a feed network, a metal ground, a feed patch and a plurality of short-circuit patches, wherein the feed network, the metal ground and the feed patch are arranged in a laminated manner, and the short-circuit patches and the feed patch are arranged in a coplanar manner. The short-circuit patches are connected with the metal ground through short-circuit columns, and the feed patch is connected with the feed network through a feed column, wherein the feed patch comprises first defect structure groups and second defect structure groups which are formed by a plurality of first defect structures; the first defect structure groups are symmetrically arranged at the two sides of a straight line where the feed column in a first polarization direction is located; the second defect structure groups are symmetrically arranged at the two sides of a straight line where the feed column in a second polarization direction is located; and the plurality of short circuit patches are respectively arranged in the first defect structures. According to the technical scheme provided by the embodiment of the invention, additional insertion loss caused by additional filters can be avoided, and the antenna performance is not reduced.

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 Applications(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