A quadrature down-conversion mixer based on this topology is designed and optimized for an ultrahighfrequency RFID reader.
设计并优化了一个基于共用跨导级结构的用于超高频rfid阅读器的正交下变频混频器。
3
The system uses the emitter to send ultrahighfrequency signals after coding with signal coder and the secondary superheterodyne mixing receiver to accept the moving target signals.