Abstract: A wireless network system is provided. The wireless network system includes two terminal wireless network modules and at least one relay wireless network module. The relay wireless network module is connected wirelessly between the two terminal wireless network modules. The relay wireless network module includes dual physical layers, performs data transmission with a first wireless network module through a first physical layer of the dual physical layers within a first frequency band and performs data transmission with a second wireless network module through a second physical layer of the dual physical layers within a second frequency band at the same time. Each of the first and the second wireless network modules is one of the two terminal wireless network modules or another relay wireless network module, and the first and the second frequency bands are different.

Abstract: An antenna architecture permitting tri-band and quad-band transmission and reception of GSM standardized frequencies in a mobile unit with a required gain without increasing power consumption. The mobile unit utilizes a control circuit to unify a first antenna and a second antenna, wherein the first antenna can operate in a first frequency and a second frequency and the second antenna can operate in a third frequency and a forth frequency. The control circuit includes a phase shift circuit for each antenna. The phase shift circuits prevent each antenna from loading the other antenna effectively eliminating excessive VSWR to increase gain.

Abstract: An antenna architecture permitting tri-band and quad-band transmission and reception of GSM standardized frequencies in a mobile unit with a required gain without increasing power consumption. The mobile unit utilizes a control circuit to unify a first antenna and a second antenna, wherein the first antenna can operate in a first frequency and a second frequency and the second antenna can operate in a third frequency and a forth frequency. The control circuit includes a phase shift circuit for each antenna. The phase shift circuits prevent each antenna from loading the other antenna effectively eliminating excessive VSWR to increase gain.