手机内置环形PIFA天线的设计

Design of the Handset Internal Loop PIFA Antenna

提出一种GSM/DCS环形PIFA双频段内置天线。这种天线是为了解决没有足够带宽,天线性能达不到要求的问题百提出的。重点叙述环形PIFA天线的设计方案,通过在馈线和接地线之间开槽,形成一个环形,增加天线的带宽来解决上述问题。给出该方案下测试出的天线的性能指标VSWR、辐射模式、发射功率和接收电平等,整个天线的性能在该方案下都达到标准。

The paper proposes a kind of GSM/DCS annular PIFA dual band internal antenna. This antenna is mainly used for resolving antenna performance caused by limited band. It narrates the design scheme of annular PIFA antenna. By notching between the feed line and short line to form a circle,this method resolves above matter through increasing antennars band. The paper lists antenna＇s VSWR, radiation mode, transmission power and reception level. The performance of antenna is up to standard of this scheme.