GSM has been an important
part in mobile communications over the last decade. Today, it has been
developed to satisfy new demands in true broadband services. One of its
great strengths is the international roaming capability of giving
consumers seamless services in many countries. GSM has been a vital
driver in growth, with more than 450 million GSM users in the world.
This presentation will focus on the antenna designs in slider phone for
GSM900/GSM1800 operations. Some antenna designs such as PIFA, helix
antenna and shorted monopole antenna in clamshell, bar and slider phones
will be introduced. And, a shorted monopole dual band antenna for
ultra-thin profile slider phones will be presented and discussed.