Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1998-04-02
2000-02-29
Ham, Seungsook
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333235, H01P 120
Patent
active
060314362
ABSTRACT:
Two helical resonator filters for applications in wireless and satellite communication systems. The present invention provides for single mode and dual mode microwave filters that employ evanescent waveguide cavities loaded with helical resonators. The structure of the present invention provides for a high Q factor in a miniature package. Two helical resonator filters are well adapted for use in wireless and satellite communication systems. The present invention provides for miniature filters utilizing single mode, high dielectric constant material loaded helical resonators, as well as higher order dual mode helical resonator loaded cavities. Both configurations can be used to realize advanced filters with non-adjacent coupling. The helical resonators may be loaded with high dielectric constant materials or ferrite materials for additional miniaturization and tunability. Either voltage or current tuning may be provided by the single mode and dual mode microwave filters.
REFERENCES:
patent: 3581249 (1971-05-01), Spangler
patent: 3691487 (1972-09-01), Yoshimoto
patent: 3728731 (1973-04-01), Choi et al.
patent: 3970972 (1976-07-01), Bunner
patent: 4101854 (1978-07-01), Gikow et al.
patent: 4453146 (1984-06-01), Fiedziuszko
patent: 4459571 (1984-07-01), Fraser
patent: 4682131 (1987-07-01), May
patent: 5484764 (1996-01-01), Fiedziuszko et al.
patent: 5831496 (1998-11-01), Sonoda et al.
Fiedziuszko Slawomir J.
Kwok Raymond S.
Float Kenneth W.
Ham Seungsook
Space Systems Loral, Inc.
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