A comparison of tunable ferroelectric Π- and T-matching networks

Influence of sputter deposition parameters on the properties of tunable barium strontium titanate thin films for microwave applications

“…For upcoming microwave applications, capacitance tunability is one key-functionality to adjust components and systems like phase-shifters, 1,2 tunable filters 3,4 and matching networks 5,6,7 to meet future requirements, e.g. for mobile communications up to 10 GHz.…”

Constraints on Efficient Control of Tunable Impedance Matching Network Based on Barium-Strontium-Titanate Thick-Film Varactors

“…thin-and thick-films, as well as varied matching network topologies, e.g. the Π-and T-structure, have been investigated [4]. The TMNs based on BST thick-film varactors have proven to be able to improve dynamically the impedance matching, while keeping a high power handling capability and working at a negligible current consumption.…”

Analytical Formulas for the Coverage of Tunable Matching Networks for Reconfigurable Applications

“…1 (a). This configuration is different from the one in [6]- [10], [12] where a resistive load is connected at one end with the other end conjugately matched to a known impedance. The configuration used here is particularly suitable for PAs where conjugate matching is not necessarily required.…”