Basically, using the traditional configuration of the printed Yagi antenna, the mid-band gain or the F/R ratio cannot be improved without scarifying the other.

• 根据这些基本的探讨，将会提出设计印刷式八木天线之准则、探讨天线方向性、频宽与背向辐射比等性能，并提出简易的快速设计程序。