Hexa-band antenna for smartphone applications

A new low-profile metallic frame antenna is proposed for hexa-band Smartphone applications. It consists of two frame segments (Segment 1 as a main radiator and Segment 2 which acts as a wave trap). The main segment works as a shorted monopole antenna (PIFA-like antenna) with a modified shape. By combining different modes of the shorted monopole and loading stubs, a hexa-band operation is achieved. The antenna is analyzed and optimized in terms of the reflection coefficient and the current distribution. The final design is made and tested and the results show that this design covers a hexa-band and is particularly suitable for such as GSM850/ DCS1800/ PCS1900/ UMTS2100/ LTE2500/ LTE3600 mobile applications.