机构地区: 华南理工大学电子与信息学院
出 处: 《现代电子技术》 2006年第13期46-48,共3页
摘 要: 设计了一款可用于UHF频段(915MHz)RFID读写器的宽带圆极化微带天线,采用双层介质微带贴片展宽天线频带,馈电方式为反转容性探针馈电。贴片天线在工作频段内(902-928MHz)性能优良,其中3dB轴比带宽27MHz;电压驻波比VSWR〈1.5,带宽为120MHz。并利用商业软件Zeland IE3d进行仿真设计和优化。 A new method for the design of broadband circularly polarized microstrip patch antennas for RFID reader is proposed here. It is based on an inverse capacitive probe feed structure and two - layer .substrates. The bandwidth of VSWR(Voltage Standing Wave Ratio) 1.5 is 120 MHz and of AR(Axial Ratio) 〈3 dB is 27 MHz. Simulated results are computed by the software Zeland IE3d.
领 域: [电子电信]