摘要
采用1/4波长微带贴片以缩小天线面积,利用商业软件Ansoft HFSS10.0进行设计仿真和优化,成功研制了一款可用于UHF频段(915 MHz)RFID读写器的小型化微带天线。经过实际测试,天线在工作频段内性能优良,驻波比VSWR<2时阻抗带宽达到30MHz。贴片天线的尺寸与性能完全满足手持RFID阅读器的需求。
This project researched and developed a novel miniaturized antenna which could be applied to Ultra-High Frequency（UHF） Radio Frequency Identification（RFID） system. The author employed a quarter-wavelength microstrip patch to shrink the antenna size, and applied commercial software Ansoft HFSS 10.0 to design and optimize it. After the actual test, the antenna showed excellent performance in the working band, whose impedance bandwidth was up to 30 MHz when the Voltage Standing Wave Ratio（VSWR）〈2. The size of the antenna is compatible with typical handheld RFID reader and its impedance bandwidth satisfies the requirements for the UHF RFID system.
出处
《信息与电子工程》
2009年第4期274-277,共4页
information and electronic engineering
关键词
无线射频识别技术
微带天线
小型化
1/4波长贴片
Radio Frequency Identification（RFID）
microstrip antenna
miniaturization
quarterwavelength elements
