Filter assembly comprising a plastic resonator support and reson

Filter circuit

Filter circuit

Filter circuit

Filter circuit

Filter circuit and high frequency communication circuit...

Filter circuit and laminate filter

Filter circuit device and method of manufacturing the same

Filter circuit device and method of manufacturing the same

Filter circuit device having parallel connected resonator...

Filter construction and oscillator for frequencies of...

Filter designs utilizing parasitic and field effects

Filter device

Filter device and method for manufacturing the same

Filter device having a dielectric resonator and a coupling loop

Filter device having a distributed-constant-line-type resonator

Filter device utilizing magnetostatic waves

Filter devices incorporating dielectric resonators and leakage c

Filter element and fabrication thereof

Filter element and method for manufacturing the same