Transition between strip-line module and RF connector by bonding

A transition structure between strip-line module and radio frequency (RF) connector is achieved by ground signal ground(GSG) bonding wires and vertical transition in printed circuit board(PCB). At the same time, the theory of the transition structure, especially the characteristic impedance of the bonding desk is researched, and the characteristic impedance of the bonding desk is provided by analogy method. At last, the back-to-back transition structure and the RF connector are fabricated and measured. The measured results show that the transition structure has a wide impedance bandwidth and low transmission loss from 0.5 to 40 GHz.