In an RF front-end having a plurality of signal paths connectable to an internal antenna or an external antenna, an antenna switch part is used to select either the internal or the external antenna. In the antenna switch part, two series switches are used to operatively connect to the same connection...http://www.google.com/patents/US7251499?utm_source=gb-gplus-sharePatent US7251499 - Method and device for selecting between internal and external antennas
