Computation of external circuit impedance of active devices in a millimeter wave harmonic power combiner

In this note, the external circuit impedance looking outside from two active devices, which are abreast mounted in the rectangular waveguide cavity of a millimeter wave harmonic power combiner, are analyzed and computed by strict field analysis method and the technique uniting Galerkin method with Collocation method. The numerical results are very useful to design the millimeter wave harmonic power combiner and develop its CAD.<
>