Optenni Lab — Tunable matching circuits

Optenni Lab supports the optimization of frequency tunable matching circuits, i.e. matching circuits that contain tunable or switchable components that are used to select the operation frequency of the antenna or RF system. This is a challeging optimization task as at the same time the values of the fixed components and multiple states of the tunable components are optimized to maximize the efficiency for each operation frequency band. Optenni Lab provides a unique easy-to-use solution to optimize tunable matching circuits.

Tunable and switchable components can be used in Optenni Lab in two modes:

  • Tunable components (e.g. variable capacitor or digitally switchable capacitor) described using two-port S2PMDIF data files (a collection of two-port Touchstone files for all the states of the component)
  • Switchable components, where there would be N different inductors or capacitors after an SPNT switch. In Optenni Lab the switch can be represented either by a simple "on" state resistive loss (assuming zero off-state capacitance) or by on/off state S-parameter description. The appropriate switch model is then placed in series with a single library component (inductor or capacitor), having N independently optimized states

After the optimization, Optenni Lab will show the S parameters and efficiencies for all the optimized tuner states. In addition, tabular information shows the optimal tuner states for the different operation frequency bands.

Thus, Optenni Lab can be used to optimize single-port and multiport tunable matching circuits and also tunable lumped element filters.