A downhole tool joint formed by the box end of a first downhole tool and the pin end of a second downhole tool , the tool joint comprising: a first annular coupler having a circumference and being disposed in an annular recess in a surface of the first downhole tool , wherein the first annular coupler includes: a first coupler segment connected to a first transmission line and spanning a first portion of the circumference of the first annular coupler ; and a second coupler segment connected to a second transmission line , the second coupler segment of the first annular coupler being electrically insulated from the first coupler segment of the first annular coupler and spanning a second portion of the circumference of the first annular coupler ; and a second annular coupler having a circumference and being disposed in an annular recess in a surface of the second downhole tool , wherein the second annular coupler includes: a first coupler segment connected to a third transmission line and spanning a first portion of the circumference of the second annular coupler ; and a second coupler segment connected to a fourth transmission line , the second coupler segment of the second annular coupler being electrically insulated from the first coupler segment of the second annular coupler and spanning a second portion of the circumference of the second annular coupler ; wherein the first annular coupler and the second annular coupler are configured to transmit data across the tool joint; wherein the first annular coupler is biased with respect to the surface of the first downhole tool into contact with the second annular coupler . a first coupler segment connected to a first transmission line and spanning a first portion of the circumference of the first annular coupler ; and a second coupler segment connected to a second transmission line , the second coupler segment of the first annular coupler being electrically insulated from the first coupler segment of the first annular coupler and spanning a second portion of the circumference of the first annular coupler ; and a second annular coupler having a circumference and being disposed in an annular recess in a surface of the second downhole tool , wherein the second annular coupler includes: a first coupler segment connected to a third transmission line and spanning a first portion of the circumference of the second annular coupler ; and a second coupler segment connected to a fourth transmission line , the second coupler segment of the second annular coupler being electrically insulated from the first coupler segment of the second annular coupler and spanning a second portion of the circumference of the second annular coupler ; wherein the first annular coupler and the second annular coupler are configured to transmit data across the tool joint; wherein the first annular coupler is biased with respect to the surface of the first downhole tool into contact with the second annular coupler . a first coupler segment connected to a third transmission line and spanning a first portion of the circumference of the second annular coupler ; and a second coupler segment connected to a fourth transmission line , the second coupler segment of the second annular coupler being electrically insulated from the first coupler segment of the second annular coupler and spanning a second portion of the circumference of the second annular coupler ; wherein the first annular coupler and the second annular coupler are configured to transmit data across the tool joint; wherein the first annular coupler is biased with respect to the surface of the first downhole tool into contact with the second annular coupler . <EOS>