覆盖WLAN/WiMAX的多频微带天线设计

Design of Multi-band Microstrip Antenna for WLAN/WiMAX

摘要: 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。

Abstract: 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.