[1]刘露,刘长军.一种2.45 GHz谐波抑制有源集成天线设计[J].应用科技,2020,47(4):37-41.[doi:10.11991/yykj.201911008]
 LIU Lu,LIU Changjun.A 2.45 GHz harmonic suppression active integrated antenna[J].Applied science and technology,2020,47(4):37-41.[doi:10.11991/yykj.201911008]
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一种2.45 GHz谐波抑制有源集成天线设计(/HTML)
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《应用科技》[ISSN:1009-671X/CN:23-1191/U]

卷:
第47卷
期数:
2020年4期
页码:
37-41
栏目:
现代电子技术
出版日期:
2020-07-05

文章信息/Info

Title:
A 2.45 GHz harmonic suppression active integrated antenna
作者:
刘露 刘长军
四川大学 电子信息学院,四川 成都 610064
Author(s):
LIU Lu LIU Changjun
School of Electronics and Information Engineering, Sichuan University, Chengdu 610064, China
关键词:
有源网络功率放大器贴片天线S参数小型化宽带谐波抑制电磁兼容阻抗匹配
Keywords:
active networkpower amplifierpatch antennaS-parametersminiaturizationbroadbandharmonic suppressionEMCimpedance matching
分类号:
TN827.1
DOI:
10.11991/yykj.201911008
文献标志码:
A
摘要:
针对现代无线通信系统日趋高性能的需求,设计了一种工作频率为2.45 GHz的有源集成发射天线。该有源集成发射天线将功率放大器与一个无源方形微带贴片天线直接集成在一体,省去了传统的50 Ω连接线;功率放大器利用小信号S参数进行设计,实现了最大输出功率30.1 dBm;方形辐射贴片对角线处开槽的结构设计,使天线的输入阻抗在谐波频率上近似为纯虚部阻抗;4.9 GHz频率处|S11|>?1.9 dB,达到了抑制天线二次谐波辐射的效果。通过测试分析,证明了该有源天线在无线通信发射系统中的可行性和优越性。
Abstract:
An active integrated transmitting antenna at 2.45 GHz is designed to meet the increasingly high-performance requirements of modern wireless communication systems. The proposed active integrated antenna (AIA) is the direct integration of a power amplifier and a square microstrip patch antenna without a conventional 50 Ω connecting line. The power amplifier is designed by using small signal S-parameters so as to realize its maximum output power of 30.1 dBm. Slotted structural design at the square radiating patch diagonals makes the antenna’s input impedance approximate to pure imaginary impedance at the second harmonic frequency. At the second harmonic frequency of 4.9 GHz, |S11| is greater than ?1.9 dB, indicating that the second harmonic radiation is suppressed successfully. Measurement and analysis prove the feasibility and superiority of this active antenna in wireless communication transmission systems.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-11-07。
基金项目:国家自然科学基金项目(61931009)
作者简介:刘露,女,硕士研究生;刘长军,男,教授,博士生导师
通讯作者:刘长军,E-mail:cjliu@scu.edu.cn
更新日期/Last Update: 2020-11-27