Low loss multiplexers with planar dual mode HTS resonators

High temperature superconductivity space experiments (HTSSE-I and II) are aimed to demonstrate the feasibility of using high temperature superconductivity (HTS) technology in space. systems, In communication satellites, high performance filters and multiplexers represent key microwave components: of the payload. Utilization of HTS films in these devices is presented in this paper. The basic HTS resonator/filter structures (including HTSSE-I resonator/filter) suitable for these applications are described, The multiplexer designs and measured results are also described (including the HTSSE-II multiplexer).