|
| US4188594 | 17 janv. 1978 | 12 févr. 1980 | Rockwell International Corporation | Fixed frequency filters using epitaxial ferrite films |
| US4459567 | 14 juin 1982 | 10 juil. 1984 | The United States of America as represented by the Secretary of the Army | Dielectric waveguide ferrite resonance isolator |
| US4506234 | 17 juin 1983 | 19 mars 1985 | The United States of America as represented by the Secretary of the Navy | Amplitude and phase modulation in fin-lines by electrical tuning |
| US4555683 | 30 janv. 1984 | 26 nov. 1985 | Eaton Corporation | Magnetically tunable resonators and tunable devices such as filters and resonant circuits for oscillators using magnetically tuned resonators |
