超宽带滤波天线研究与设计  

Research and Design of UWB Filtering Antenna

作　　者：代天瑶 DAI Tianyao(School of Electronic Infomlation,Hangzhou Dianzi University,Hangzhou 310018,China)

机构地区：[1]杭州电子科技大学电子信息学院,浙江杭州310018

出　　处：《电子科技》2018年第12期34-37,共4页Electronic Science and Technology

基　　金：国家自然科学基金(60673143);浙江省科技计划(2006C21020)

摘　　要：文中提出了一种新型小尺寸具有三阻带特性的UWB天线。所设计的天线基本几何结构由耦合馈电结构、圆形辐射贴片和互补开口谐振环(CSRR)组成。通过在结构简单的圆形单极子天线中引入地面开槽结构、贴片开互补谐振环技术实现了三阻带的超宽带滤波天线。仿真和测试结果表明该天线在3～8 GHz频率范围内,回波损耗<-10 d B,并且在中心频率点3. 5 GHz(WIMAX)、5. 5 GHz(WLAN)和7. 5 GHz(卫星通信频段)处,产生明显阻带作用。在宽频通带范围内驻波比均小于2,在频点3. 2 GHz、4. 5 GHz和6. 5 GHz处天线的E面呈"8"字形,且H面具有良好的全向性,证明文中提出的UWB天线满足超宽带三阻带滤波天线的设计要求。In this paper, a new UWB antenna with three - stopband characteristics was proposed. The basic ge- ometi7 of the designed antenna was consisted of a coupled teed structure, a circular radiating patch and a complemen- tai7 open resonant ring （ CStltl）. The ultra - wideband filtering antenna with three - stopband was realized by intro- ducing the ground slotted structure and the complementary resonant ring technology in the circular monopole antenna with simple structure. The experinental and measured results showed that the echo loss was less than - 10 dB and it have obviously Stop - band ettects at the center frequency of 3.5 GHz （WIMAX）, 5.5 GHz （WLAN） and 7.5 GHz （satellite communication frequency） in the frequency range of 3 - 8 GHz. In the broadband passband range, the standing wave ratio was less than 2, antenna E surtace was ＂ 8＂ shape at the frequency of 3.2 GHz, 4.5 GHz and 6.5 GHz and the H side has a good omnidirectional. So as to meet the design requirements of ultra - wideband three -stop filtering antenna.

关 键 词：超宽带 滤波天线 小型化 互补开口谐振环微带天线 三阻带 

分 类 号：TN82[电子电信—信息与通信工程]