Which type of network offers the greatest transformation ratio?

A pi-network effectively acts like two L-networks placed back-to-back. Because of this three-component design, the quality factor (Q) and the impedance transformation ratio can be controlled independently. This allows the pi-network to transform a much wider range of impedances compared to simpler networks. In contrast, an L-network only has two components, permanently tying its transformation ratio directly to its Q, which heavily restricts its range. Butterworth and Chebyshev are incorrect because they describe mathematical filter responses (the shape of the passband and stopband) rather than physical network topologies used primarily for maximizing impedance transformation.