Admittance-matching network for the parallel connection of wide-band active power elements

Claim 1

An admittance matching network, having a first pair of terminals and first admittance connected across said first pair, and n second pairs of terminals, for matching n second admittances respectively connected across said second pairs, to said first admittance, the admittance value of said first admittance being substantially lower than the sum of said second admittances, said network comprising : p successive stages of admittance transformers, staggered between said first pair and said n second pairs and, in each stage, q groups of transformers, having respective first and second pairs of terminals, said first pairs being parallely connected to the second pair of terminals of a transformer of the preceeding stage, and said second pairs of terminals being connected in parallel to the first pairs of terminals of a group of q transformers of the following stage, the group of rank one having its first pairs connected in parallel to said first pair and the group having the rank p comprising n transformers having their second pairs connected respectively to said second admittances, the transformation ratio of each transformer being equal to q, and n being equal to qp, said admittance transformers being low pass filters of the pi type, each comprising a lumped capacitor and wires, having a length substantially lower than the operating wavelength constituting the inductances of said filter.