采用阶跃阻抗谐振器的小型化双频天线  

Design of Miniaturized Dual-band Antenna Using Stepped Impedance Resonator

作　　者：马润波[1] 张文梅[1] 

机构地区：[1]山西大学物理电子工程学院,山西太原030006

出　　处：《山西大学学报（自然科学版）》2010年第2期233-237,共5页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(60771052)

摘　　要：提出一种采用阶跃阻抗谐振器(SIR)设计双频天线的方法.通过建立天线的传输线模型,得到了双频天线的工作频率与传输线特性的关系式.然后,利用该方法设计了一个2.4/5.2 GHz的小型化双频天线,其结构尺寸由工作频率直接综合得到.同时用电磁全波仿真,优化了天线的馈电位置.所实现的天线尺寸为29.3 mm×7.7 mm,相当于0.5λ×0.125λ.仿真和测试结果表明,采用阶跃阻抗谐振器设计双频天线的方法是可行且有效的.A design method of dual-band antenna by using stepped impedance resonator （SIR） is proposed. By establishing the transmission line model of the SIR dual-band antenna,the relation between the two operation frequencies and the characteristics of the transmission lines is obtained. Moreover, a miniaturized 2. 4/5.2 GHz antenna is designed by using the method. The geometry of the designed antenna can be synthesized directly from the operation frequencies. The designed antenna size is 29.3mm× 7.7 mm,about 0.5λ×0.125λ. Finally, the antenna is simulated and measured,and the results indicate that the design method of dual-band antenna by using SIR is feasible and effective.

关 键 词：射频 阶跃阻抗谐振器 双频 天线 

分 类 号：TN828.6[电子电信—信息与通信工程]