说明：  HMC347B是一种宽带非反射性的GaAs pHEMT领域MMIC芯片。覆盖0.1到20千兆赫，这个开关提供了高度隔离和低插入损耗。
(The HMC347B is a broadband non-reflective GaAs pHEMT SPDT MMIC chip. Covering 0.1 to 20 GHz, the switch offers high isolation and low insertion loss.)