Patent ID: 8077639
Filing Date: 2011-12-13
Classification: H04L

Abstract:
1. An electromagnetic signal routing assembly for effecting two way duplex transmissions, comprising: a transmission signal input for receiving first transmission signal; a common port for outputting a portion of said first transmission signal from said transmission signal input and simultaneously receiving a second transmission signal; a transmission signal output for outputting a portion of said second transmission signal; a signal divider receiving said first transmission signal from said transmission signal input and dividing said first transmission signal into first and second divided transmission signals having amplitudes within a first amplitude range of each other and a first relative phase shift therebetween; 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 at said first port to said second port and another signal at said second port to said third port, wherein: said first routing device having said first divided transmission signal applied to said first port of said first routing device and simultaneously producing: each resultant from said first divided transmission signal; said first routing device also having a third divided transmission signal, when present, applied to said second port of said first routing device and producing, simultaneously with said first divided transmission output signal and said first transmission leakage signal, a third divided transmission output signal at said third port of said first routing device resultant from said third divided transmission signal; said second routing device having said second divided transmission signal applied to said first port of said second routing device and simultaneously producing: each resultant from said second divided transmission signal; said second routing device also having a fourth divided transmission signal, when present, applied to said second port of said second routing device and producing, simultaneously with said second divided transmission output signal and said second transmission leakage signal, a fourth divided transmission output signal at said third pert of said second routing device resultant from said fourth divided transmission signal: a signal divider/combiner having: said configuration being such that said second transmission signal, when present and received at said common port, said second transmission signal is divided into said third and fourth divided transmission signals having amplitudes within said second relative amplitude range and with said second relative phase shift therebetween; a signal combiner having first and second combiner inputs for receiving said first and second transmission leakage signals and, when present, for receiving said third and fourth divided transmission output signals, said signal combiner including said transmission signal output, and said signal combiner being configured to introduce a third relative phase shift into signals applied to at least one of said first and second combiner inputs and combine signals applied to said first and second combiner inputs at said transmission signal output at levels within a third amplitude range such that: said first routing device receiving said third transmission leakage signal at said second port and producing at said third port a third transmission leakage output signal resultant from said third transmission leakage signal; said second routing device receiving said fourth transmission leakage signal at said second port and producing at said third port a fourth transmission leakage output signal resultant from said forth transmission leakage signal; a reflecting configuration configured to produce at least one reflected signal, said reflecting configuration being one of: a fourth reflector configuration having: said signal combiner having said first and second combiner inputs respectively receiving said third and fourth transmission leakage output signals, and respectively receiving, via at least one of said first and second routing devices, at least one reflection signal output resultant from said at least one reflected signal, said signal combiner being so configured as to destructively combine said at least one reflection signal output at said transmission signal output with said third and fourth transmission leakage output signals to effect at least partial cancellation of said third and fourth transmission leakage output signals arriving at said transmission signal output.