摘要
设计了一种用于2.4/5.2 GHz无线局域网频段,且具有分集功能的双频天线,天线有两个C形印刷单极子组成.每个C形印刷单极子有两条谐振路径,每条谐振路径对应一个谐振频率,因此,该天线可以工作在无线局域网的两个频段.天线的两个C形印刷单极子相互垂直,一方面接收不同极化方向的电磁波,另一方面可以减少两个印刷单极子之间的耦合.天线背面的地有一个T形的金属导带用于隔离天线的两个端口,天线的两个C形印刷单极子关于T形的金属导带呈对称分布.天线具有双频工作的能力,在其工作的每一个频段内,该天线都具有两个隔离度比较高的端口.因此,该天线具有空间分集的功能,并能够对无线通信中的多径衰落问题有所抑制.
A dual band printed diversity antenna for 2.4/5.2GHz WLAN operation was designed. The antenna consists of two printed C-shaped monopoles which have two resonating paths each. Every resonating path corresponds to a resonating frequency, therefore, the antenna can work at the two bands of WLAN. The two printed C-shaped monopoles of the antenna are orthogonal to each other; on one hand, they can receive electromagnetic wave with different polarization, on the other hand, this placement can decrease coupling between the two monopoles. On the back of the antenna, there is a protruding T-shaped ground plane to increase the isolation between the two ports of the antenna. The two printed C shaped monopoles are placed symmetrically with respect to the protruding T-shaped ground plane. The antenna has the ability to work at two bands, across every band it has two highly decoupled ports and can provide spatial diversity to combat the multi-path fading problem.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2006年第1期94-97,共4页
Journal of Shanghai Jiaotong University
关键词
无线局域网
双频天线
印刷天线
wireless local area network （WLAN）
dual band antenna
printed antenna
