Antenna design requirements: frequency band size and form read range application with mobility cost reliability rfid tag antenna performance strongly depends on the frequency-dependent complex impedance present by the chip.

• 实际只有确定了芯片,得到了芯片的阻抗特性才能得知设计天线的阻抗特性目标,再而根据阅读距离等要求进行天线设计。