High isolation signal routing assembly for full duplex communication

摘要

A signal routing assembly accepts a first transmission signal at an input and outputs a substantial portion of the signal at a common port of the signal routing assembly. A second transmission signal is received at the common port and is routed through the signal routing assembly delivered to output of the signal routing assembly. Leakage signals from routing devices leaking the first transmission signal are terminated inside the signal routing assembly. Leakage signals from a divider/combiner are cancelled by reflect signal from at least one reflector device. A transmitter produces the first transmission signal and the signal routing assembly delivers this signal to the common port of the signal routing assembly. In full duplex operation, second transmission signals received at the common port are routed to the output to be applied to a receiver.

主权项

1. An electromagnetic signal routing assembly for effecting two way duplex transmissions, comprising:
a transmission signal input for receiving a first transmission signal; a common port for outputting a portion of said first transmission signal from said transmission signal input and receiving a second transmission signal when present; a transmission signal output for outputting a portion of said second transmission signal when present; a signal divider having a first divider output, a second divider output, and a divider input as said transmission signal input receiving said first transmission signal and dividing said first transmission signal into first and second divided transmission signals output respectively to said first divider output and said second divider output; first and second routing devices each having at least first, second and third ports, said first and second routing devices being configured to simultaneously deliver a signal input at said first port to said second port and another signal input at said second port to said third port; said first routing device accepting said first divided transmission at said first port thereof; said second routing device accepting said second divided transmission at said first port thereof; a signal divider/combiner having first and second divider/combiner ports and a divider/combiner common port, said signal divider/combiner having a configuration for combining signals in/put at said first and second divider/combiner ports and outputting a resultant combined signal at said divider/combiner common port, and dividing a signal accepted at said common port and outputting resultant divided signal at said first and second divider/combiner ports; said signal divider/combiner being connected to accept input from said second port of said first routing device at said first divider/combiner port, and accept input from said second port of said second routing device at said second divider/combiner port, and said signal divider/combiner common port being said common port; a signal combiner having first and second combiner ports and a combiner common port, said signal combiner having a configuration for combining signals input at said first and second combiner ports and outputting a resultant combined signal at said combiner common port; said signal combiner being connected to accept input from said third port of said first routing device at said first combiner port, and accept input from said third port of said second routing device at said second combiner port, and said signal combiner common port being said transmission signal output; a first signal path comprising said first muting device, and a connection between said first routing device and said first signal divider/combiner port; a second signal path comprising said second routing device, and a connection between said second routing device and said second signal divider/combiner port; and a signal imbalancing device applied to one of said first signal path and said second signal path so as to create an imbalance between signals in said first signal path and said second signal path.