Filter circuit and transmitter and receiver using the same

Filter combiner

Filter comprising inductor, duplexer using the filter and...

Filter device for transmitter-receiver antenna

Filter device substrate and filter device

Filter element, and filter device, duplexer, and...

Filter having directional coupler and communication device

Filter having resonators coupled by a saw filter and a duplex fi

Filter having switch function and band pass filter

Filter including a microstrip antenna and a frequency selective

Filter including acoustic wave filters connected in parallel

Filter module using piezoelectric resonators, duplexer,...

Filter structure and arrangement comprising piezoelectric...

Filter structure comprising piezoelectric resonators

Filter unit having two attenuation poles

Filter using film bulk acoustic resonator and...

Filter using piezoelectric resonator

Filter with low-noise amplifier

Filter, antenna sharing device, and communication device

Filter, duplexer, and communication device