新型无线局域网双频段微带贴片天线设计

摘要

A novel dual-band microstrip antenna which is fed by 50 Ω microstrip line for wireless local area network (WLAN) applications is analyzed and designed. The antenna with slot loaded on the patch for miniaturization can operate on dualband. The center operating frequencies of the antenna are 2. 44 GHz and 5. 20 GHz, and the operating frequency bandwidths are 200 MHz and 1.2 GHz, respectively. The proposed antenna has some advantages, such as low profile, simple structure, easy fabrication, low cost and good omnidirectional radiation patterns. The high-band and low-band of the antenna can be adjusted by simply modifying the radiation patches and gap size parameter.%新型无线局域网双频段微带贴片天线采用50 Ω微带线进行馈电,采用在贴片切槽设计方式,实现了微带天线在双频段工作的要求.其中心工作频率分别为2.44 GHz和5.20 GHz,相应的工作带宽分别达到了200 MHz和1.20 GHz.该天线具有小尺寸、结构简单、制作简单,低成本和在各工作频点处具有良好的方向性等优点,而且只需简单修改辐射贴片上的缝隙尺寸参数,就可以实现对天线高频段和低频段的调节.