Frequency agile, dielectrically loaded resonator filter

Frequency band filter

Frequency filtering circuit for wireless communication devices

Frequency offset technique for YIG devices

Frequency-variable-type filter, antenna duplexer, and...

General response dual-mode, dielectric resonator loaded...

Generalized dielectric resonator filter

Hairpin microstrip bandpass filter

Hairpin microstrip line electrically tunable filters

Half wave ceramic filter with open circuit at both ends

Half wave resonator dielectric filter construction having self-s

Half wavelengh and quarter wavelength dielectric resonators coup

Half-wave folded cross-coupled filter

Half-wavelength resonator type high frequency filter

Harmonic filtering device for radio transmitter

Harmonic spurious signal suppression filter

Helical filter

Helical filter with a removable tap housing

Helical filters and methods for specifying assembly thereof

Helical resonator