Liquid Crystal-Based Reconfigurable Tunable Filter with DBR Topology

الملخص EN

The use of liquid crystals for tunable filter in planar technology is proposed.

The design is based on a dual-behavior resonator (DBR) topology.

These resonators are based on the association of different parallel open-ended stubs and allow the designer to independently control the in-band and out-of-band responses of the filter.

To benefit from liquid crystal anisotropy and thus obtain agility, a bias voltage is applied.

The simulated results are compared with measured data, and good agreement is obtained.