摘要
超宽带（UWB）系统的工作频段与现有的许多窄带系统频段相互重叠,因此各个系统信号之间存在潜在的干扰。针对上述问题提出了一种紧凑型超宽带双陷波天线。天线由一个圆形辐射贴片构成并通过50Ω的微带线进行馈电。接地板和传统的接地板相比被截短了,以提高天线的阻抗带宽。通过在辐射贴片上刻蚀H型槽来实现天线的双陷波功能,并在微带馈线中引入了嵌入式谐振回路（ERC）结构,加大了天线的陷波深度和阻带宽度,陷波性能好于同频段的双陷波天线。仿真和测试结果表明,天线在3.1-4.2 GHz以及5.0-6.6 GHz具有陷波特性,有效地避免了Wi MAX和WLAN频段信号的干扰。同时在2.8-10.7 GHz的其它频段上具有良好的阻抗匹配和较好辐射方向特性。天线的尺寸为34 mm×26 mm×1.6 mm,结构较为紧凑。
The spectrum overlapping between ultra wideband system and many narrowband system results in the potential interference in signals. For this problem,the paper proposed a compact ultra wideband antenna with dual band-notched characteristic. The antenna consists of a circular patch fed by a 50 Ω microstrip line. Compared with conventional ground plane,the ground plane is truncated to improve the overall bandwidth. The H-shaped slot is etched on the radiator to introduce the dual band-notch function and embedding resonance circuit is introduced to enlarge the depth of the band-notched characteristic and the width of stop band,so the antenna shows better band-notched characteristic than other dual band-notched antennas at the same frequency bands. The simulation and test results indicate that the antenna achieves band-notched function at 3. 1 - 4. 2 GHz and 5. 0 - 6. 6 GHz to effectively avoid interference from the signal of Wi MAX and WLAN. At the same time,except for the two notched bands,it has a good impedance matching over a bandwidth of 2. 8 to 10. 7 GHz with reasonable radiation patterns. The antenna has a compact size of 34 mm×26 mm×1. 6 mm.
作者
帅陈杨
王光明
宗彬峰
李海鹏
SHUAI Chen-yang WANG Guang-ming ZONG Bin-feng LI Hai-peng(College of Air and Missile Defence, Air Force Engineering University,Xi＇ an 710051, China)
出处
《微波学报》
CSCD
北大核心
2016年第5期39-43,共5页
Journal of Microwaves
基金
国家自然科学基金(61372034)
作者简介
帅陈杨 男，1992年生，硕士生。主要研究方向：新材料天线的设计应用，超宽带技术。E-mail：13980377569@163．com
王光明 男，1964年生，教授，博士生导师。主要研究方向：天线理论与技术，紧凑型异向介质，超宽带阵列天线。E—mail：wgming01@sina．com
宗彬峰 男，1988年生，博士生。主要研究方向：微波电路的设计应用，超宽带天线技术。E-mail：zongbinfeng@sina．com
李海鹏 男，1990年生，博士生。主要研究方向：相位梯度超表面，紧凑型异向介质研究与运用。E—mail：s_lihaipeng@sina．com
