G. Bartolucci et al., EQUIVALENT-CIRCUIT MODEL FOR MICROSTRIP MULTIPORT RADIAL DIVIDERS, IEE proceedings. Microwaves, antennas and propagation, 141(4), 1994, pp. 333-336
A CAD oriented lumped element equivalent circuit for a multiport radia
l line divider is proposed. This model is obtained by a planar approac
h based on the resonant mode field expansion technique. Good agreement
in a wide frequency range with experimental results demonstrates the
effectiveness of the proposed circuit.