用于WLAN的双频天线的设计与实现  

Design and Realization of Novel Dual-band Antenna for WLAN

作　　者：张学辉[1] 赵雯[2] 刘学观[2] 

机构地区：[1]烟台大学工程实训中心,山东烟台264005 [2]苏州大学电子信息学院,苏州江苏215006

出　　处：《通信技术》2010年第7期41-42,45,共3页Communications Technology

摘　　要：提出了一种应用于无线局域网(WLAN)的新型双频天线。该天线采用微带线馈电的方法,其辐射面呈阶梯形,接地面为"工"型宽缝结构,可以覆盖IEEE802.11a/b/g(2.4～2.484GHz,5.15～5.825GHz)频段标准。其回波损耗小于10dB的阻抗带宽在2.4GHz频段可达160MHz(2.4～2.56GHz),在5GHz频段的可达1.32GHz(5.05～6.37GHz)。整个天线在42mm×52mm、介电常数为4.5、厚度为1.5mm的FR4介质基片上实现。结果表明,该天线具有十分良好的应用潜质。A novel dual-band antenna for WLAN is proposed in this paper.The antenna,with the step-shape radiation surface and ＂H＂-type slot in the ground,is fed by the microstrip line,and could cover the working bands of IEEE 802.11a/b/g（2.4～2.484 GHz,5.15～5.825 GHz）.The impedance band with less than 10 dB of return-wave loss could reach 160 MHz in 2.4 GHz and reach 1.32 GHz in 5 GHz.The antenna is realized with FR4 in 42 mm（W）× 52 mm（L）.The measurement results show that the proposed antenna is of good application potential in WLAN system.

关 键 词：双频天线 无线局域网 宽缝天线 微带馈电 

分 类 号：TN820[电子电信—信息与通信工程]