摘要
提出了一种新型带有V形锯齿结构的圆形微带天线,相比于传统的圆形微带天线,该结构微带天线在2GHz的S11值能够达到-26.9dB,二次谐波S11值能够达到-0.2 dB,三次谐波S11值能够达到-3 dB。由于这种良好的抑制高次谐波的作用,在组成整流天线时,可以省掉结构复杂、体积较大的滤波器。并且采用这种结构的天线,具有采用分形技术设计微带天线所获得的缩小天线尺寸的效果。对由该结构组成的整流天线进行仿真和实验测试,获得了超过2.7 V的DC电压,证明了其应用到整流天线中的可行性。
A novel with V notched circular microstrip antenna is proposed,compared with traditional circular microstrip antenna,S11 of microstrip antenna with this structure can reach-26.9 dB in 2 GHz,second harmonic of S11 can reach-0.2 dB,third harmonic of S11 can reach-3 dB.Because of this good restrain function of higher harmonic,when constituting rectenna,it can replace filter which has complex structure and large size.In addition,using this kind of structure of the antenna has the effect of minishing the size when designing microstrip antenna adopted with fractal technology.Through the simulation and experimental test of rectenna containing the structure,receive DC voltage over 2.7V,which proves that it is feasible when applied to rectenna.
出处
《传感器与微系统》
CSCD
北大核心
2013年第4期142-144,共3页
Transducer and Microsystem Technologies
基金
国防重点实验室基金资助项目(51477050101DZ3201)
关键词
微带天线
锯齿结构
分型技术
滤波器
microstrip antenna
notched structure
fractal technology
filter
