滤波天线：从创新概念到工业应用

曹云飞; 张垚; 章秀银

doi:10.1631/FITEE.1900474

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滤波天线：从创新概念到工业应用

后5G与6G天线系统演进与创新专辑 | Updated：2022-05-19

- 滤波天线：从创新概念到工业应用
- Filtering antennas: from innovative concepts to industrial applications
- 信息与电子工程前沿（英文） 2020年21卷第1期页码：116-127
- Affiliations：
  
  School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510641, China
- Author bio：
  
  Xiu-yin ZHANG, E-mail: zhangxiuyin@scut.edu.cn
- Funds：
  
  Project supported by the National Natural Science Foundation of China (Nos. 61725102 and 61701182) and the China Postdoctoral Science Foundation (Nos. 2017M610521 and 2018T110866)
- DOI：10.1631/FITEE.1900474
  中图分类号： TN828.6
- 收稿：2019-09-04，
  
  修回：2020-;1-27，
  
  纸质出版：2020-01
- Accepted：
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曹云飞, 张垚, 章秀银. 滤波天线：从创新概念到工业应用[J]. 信息与电子工程前沿（英文）, 2020,21(1):116-127.

Yun-fei CAO, Yao ZHANG, Xiu-yin ZHANG. Filtering antennas: from innovative concepts to industrial applications[J]. Frontiers of Information Technology & Electronic Engineering, 2020, 21(1): 116-127.
曹云飞, 张垚, 章秀银. 滤波天线：从创新概念到工业应用[J]. 信息与电子工程前沿（英文）, 2020,21(1):116-127. DOI： 10.1631/FITEE.1900474.

Yun-fei CAO, Yao ZHANG, Xiu-yin ZHANG. Filtering antennas: from innovative concepts to industrial applications[J]. Frontiers of Information Technology & Electronic Engineering, 2020, 21(1): 116-127. DOI： 10.1631/FITEE.1900474.

摘要

滤波天线兼具滤波和辐射功能，可用于减少不同频带、距离较近的天线单元间的异频耦合。本文回顾论文作者提出的几款滤波天线和3个相关的双频基站天线阵列作为应用示例。滤波天线设计包括单极化和双极化滤波贴片天线、单极化全向滤波偶极子天线及用于基站的双极化滤波偶极子天线。不同于其他天线，本文中的滤波天线是具有消除多余滤波电路的创新概念。对于每种设计，滤波结构都与辐射体或馈电线良好集成。故提出的设计具有尺寸紧凑、结构简单、带内辐射性能良好、损耗低的优点，且不包含复杂滤波电路。基于提出的滤波天线，已开发出单极化和双极化双频天线阵列。利用滤波天线自身的频率选择功能，可有效降低不同频段天线单元间的异频互耦。相比于典型工业产品，双频阵列性能更佳。一些提出的技术已实现产业化应用。

Abstract

A filtering antenna is a device with both filtering and radiating capabilities. It can be used to reduce the cross-band mutual coupling between the closely spaced elements operating at different frequency bands. We review the authors' work on filtering antenna designs and three related dual-band base-station antenna arrays as application examples. The filtering antenna designs include single- and dual-polarized filtering patch antennas

a single-polarized omni-directional filtering dipole antenna

and a dual-polarized filtering dipole antenna for the base station. The filtering antennas in this paper feature an innovative concept of eliminating extra filtering circuits

unlike other available antennas. For each design

the filtering structure is finely integrated with the radiators or feeding lines. As a result

the proposed designs have the advantages of compact size

simple structure

good in-band radiation performance

and low levels of loss

and do not contain complicated filtering circuits. Based on the proposed filtering antennas

single- and dual-polarized dual-band antenna arrays were developed. Separate antenna elements at different frequency bands were used to achieve the dual-band performance. The cross-band mutual couplings between the elements at different bands were reduced substantially using the antenna inherent filtering performance. The dual-band arrays exhibited better performance as compared to typical industrial products. Some of the proposed technologies have been transferred into the industry.

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references

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