Cascaded-unit-element network and its ladder-RC equivalent

This letter is aimed at establishing an equivalent LRC network for the cascaded ULC- and URC- networks. * Once the concept of equivalency is established, the wealth of classical synthesis theory of the LRC network can be inherited for the use of cascaded ULC- and URC- networks. Such application is demonstrated by using the continued fraction-expansion technique for the synthesis of cascaded ULC- or URC- network. This synthesis technique will be of particular interest in stepped-impedance transformer synthesis.