Interlayer Stripline Transition

A proposed multilayer metal-film/dielectric-plate laminate would serve as a passive radio-frequency (RF) interlayer stripline transition. This device is designed to provide RF coupling from (a) an input transmission line of the stripline type spanning the first through third metal layers, with characteristic impedance Z0s to (b) an intermediate transmission line of the parallel-line type spanning the first through fifth metal layers, with characteristic impedance Z0p ≈ Z0s to (c) an output transmission line of the stripline type spanning the third through fifth metal layers, with characteristic impedance Z0s.