Switched monopole antenna for DVB-H operation

In this paper, a new cap structure of monopole antenna with a switched feeding structure is investigated. This antenna provides a wide input impedance bandwidth, and a small size for handset co-integration. The measured results show that the return loss and antenna input impedance of the cap type monopole antenna provides a considerably large bandwidth even with a radiating area. It is found that the cap loaded monopole antenna with a cap mounted metal is comparable to the different feeding position at the same monopole antenna radiator and with and respect to geometry size and electrical performance. The measured results of a low-Q monopole antenna with a cap metal mounted on the top and fed with parallel probe, simultaneously. In this paper also review some mobile TV specification, future progress and application.