A novel tri-band T-junction impedance-transforming power divider with independent power division ratios
Fig 2
(a) Each path from the input port to the output port includes the LN shown as Transformer 2 and Transformer 3 in this picture. R1 (R2 and R3) is the terminal impedance of the input (output) port, R2i and R3i are the equivalent input impedance calculated in the direction from the input to the output in path-2 and path-3 at each specific frequency fi. The MS and the FSS of the L-type Transformer 2 (Transformer 3) are respectively expressed by its ABCD-matrix and the equivalent input impedance jX2i (jX3i) in (b) and (c).