覆盖WLAN/WiMAX的多频微带天线设计

Design of Multi-band Microstrip Antenna for WLAN/WiMAX

设计了一种新型的高带宽、多频段单极子微带天线。以单极子天线为基础,通过在主天线旁边增加寄生的短路共面贴片,改变各种自然模式的场分布而产生多频,同时增加带宽。利用电磁仿真软件HFSS建立天线模型并优化仿真,结果表明该天线实现了WLAN(Wireless Local Area Network)2.45、5.2、5.8 GHz以及WiMAX(World Interoperability for Microwave Access)2.59、3.55、5.5 GHz多频段同时工作,甚至覆盖X频段。

In this paper, we designed a novel high bandwidth and multi-band monopole antenna. Based on monopole antenna, the proposed method changes field distribution of various natural modes by attaching parasitic short circuit patch beside the main antenna and achieves multi-frequency, meanwhile widens the bandwidth. The antenna model is optimized and simulated by HFSS. The results show that the designed antenna enables to work in WLAN （ Wireless Local Area Network） band （2.45 GHz and 5.2 GHz）, WIMAX （World Interoperability for Microwave Access） band （2.59 GHz, 3.55 GHz and 5.55 GHz） and X band.