Hirofumi Miyamoto

Frequency variable filter, antenna duplexer, and communication apparatus incorporating the same

Mounting structure of dielectric filter, dielectric filter device, mounting structure of dielectric duplexer, and communication device

Filter assembly and communication apparatus

Dielectric filter and method of manufacturing same

Dielectric duplexer and communication apparatus

Filter, antenna duplexer, and communication apparatus incorporating the same

Dielectric resonator apparatus comprising at least three quarter-wavelength dielectric coaxial resonators and having capacitance coupling electrodes

Dielectric filter, antenna sharing device, and communication device having a voltage controlled reactance element for tuning the center frequency

Dielectric filter providing TEM- and TE-mode resonators and communicaton device using the same

Dielektrischer Resonator, dielektrisches Filter und Verfahren zum Herstellen eines dielektrischen Filters