Rfid antennas we research operate at 915mhz , which belong to vhf , therefore microstrip patch antenna is adopted as base station antenna and various balanced dipole antennas are employed as tag antennas . then , a brief introduction is given on the radiating principles of the microstrip antenna 由于本课题所研究的rfid天线主要工作于915mhz ,属于甚高频波段,因而基站天线主要采用微带贴片型,标签天线主要采用各种对称振子型天线。
甚高频: very high frequency波段: wave band; wave range; band; ...甚高频波长表: very high frequency wave meters 波段〔一种无线电超高频波段〕。: s-band高频波: high frequency wave甚高频: very high frequency (vhf)低频波段: low frequency range间频波段: audio band射频波段: radio frequency range; radio-frequency range甚低频波段: very low frequency band声频波段: voice grade视频波段: video band甚高频,特高频: vhf地球甚高频通信海难警戒波段: distress alerting band in terrestrial vhf communication services超高频波: hyper frequency wave; hyperfrequency waves; microwave; ultra high frequency wave微波,超高频波: hyperfrequency waves低频带,低频波段: low frequency band调频波段分配: frequency modulation allocation音频波段电路: voice grade channel上限甚高频: high-very-high frequency; high-very-highfrequency甚高频测向: vhfdf very high frequency direction finding甚高频传播: vhf propagation甚高频传输: vhf transmission甚高频带: vhf band甚高频党器: vhf tuner