Patent ID: 8125292

Claim:
A system comprising: a circuit board operable to communicate a radio frequency (RF) signal between at least a first location and a second location; a coaxial launcher coupled to the circuit board at the first location and substantially perpendicular to a first surface of the circuit board, the coaxial launcher operable to couple a coaxial transmission line to the circuit board; an RF transmission line coupled to the circuit board and substantially parallel to the first surface of the circuit board, the RF transmission line electrically coupling the first location with the second location; a coaxial transition between, and coupled to, the coaxial launcher and the RF transmission line, the coaxial transition operable to transition a propagation path of the RF signal from a first direction substantially perpendicular to the circuit board to a second direction substantially parallel to the circuit board, wherein the coaxial transition comprises a microstrip portion comprising a substantially constant width greater than a width of the RF transmission line, the microstrip portion coupled to a center conductor of the coaxial transmission line and extending to the RF transmission line; and a ground plane covering the coaxial transition and the RF transmission line from the first location to the second location, wherein the ground plane is substantially parallel to the first surface of the circuit board and arranged such that there is a gap between the ground plane and an end of the center conductor of the coaxial transmission line.