Extended cordless telephone system

Claim 1

An extended phone service system for communicating information signals from a plurality of telephone lines through a telephone exchange to a plurality of remote units, comprising: central station communicating signals to and from the plurality of telephone lines, said central station including, a plurality of transceivers for transmitting and receiving the information signals as amplitude companded sideband (ACSB) signals; a power combiner coupled to said plurality of transceivers, said power combiner including a plurality of combiner striplines with each combiner stripline transforming an input impedance by a ratio of 1:2 to an output impedance, said plurality of combiner striplines connected for combining the ACSB signals outputted from said plurality of transceivers with impedance matching to an output of said power combiner, by having at least an output of a first combiner stripline and an output of a second combiner stripline coupled to an input of a third combiner stripline, a duplexer, with a transmitter port coupled to the output of said power combiner, with a receiver port coupled to said plurality of transceivers, and with an antenna port; a power divider with a first port coupled to the antenna port of said duplexer, and a plurality of divided ports, said power divider including a plurality of divider striplines with each stripline transforming a first port impedance by a ratio of 2:1 to a second port impedance, said plurality of divider stripline connected with at least a first divider stripline with a first port coupled to the antenna port of said duplexer and a second port coupled to a first port of a second divider stripline and a first port of a third divider stripline; a plurality of isolators coupled between each of said transceivers and each of said combiner striplines coupled to each of said transceivers, respectively, for isolating power outputted from said transceivers; a plurality of linear amplifiers coupled between each of said transceivers and each of said isolators coupled to each of said transceivers, respectively, for amplifying power outputted from said transceivers; and a plurality of radiax cables coupled to said plurality of divided ports for radiating the ACSB signals to and receiving the ACSB signals from said plurality of remote units.