Cellular base station transmit-receive system

Details Cellular base station transmit-receive system Cellular base station transmit-receive system

1994-08-31

1996-08-27

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

455 73, 370 691, H04B 156

Patent

active

055508138

ABSTRACT:
In base station cellular telephony transmit-receive systems which provide multiple channels, the transmitter and receiver circuits which respectively, modulate baseband signals on to channel carrier waves and recover baseband signals from channel carrier waves are included in homogeneous assemblies of such transmitter circuits or receiver circuits which are surface mounted on printed wiring boards. Those transmitter circuit assemblies and receiver circuit assemblies include surface mounted combiner and splitter devices, respectively, which have multiple ports connected by microstrip transmission lines to, as the case may be, the transmitter circuits or receiver circuits of the assemblies in which those devices are includes. The described arrangement results in reduction relative to the prior art in the number of coaxial cables used in such systems.

REFERENCES:
patent: 4223310 (1980-09-01), Davidson et al.
patent: 4229741 (1980-10-01), Groth, Jr.
patent: 4311878 (1982-01-01), Berkowitz et al.
patent: 5200955 (1993-04-01), McFarlane et al.
patent: 5239666 (1993-08-01), Truby

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