It is shown that the beam quality in the far field depends on the initial field distribution, and is degraded with increasing emissive power.

结果表明，远场光束质量与初始场的空间分布有关，且随发射功率增大而变差。

Present a design of the Emissive Microwave Power Control used for the UHF RFID Reader.

介绍一种用于适用于超高频段以上的射频读写器功率控制方案。