Wide bandwidth helical resonator filter

Details Wide bandwidth helical resonator filter Wide bandwidth helical resonator filter

1979-12-21

1981-08-18

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333222, H01P 1201, H01P 700

Patent

active

042849667

ABSTRACT:
A helical resonator filter with increased bandwidth is provided for use as a wideband bandpass filter. The device is composed of a series of helical resonators cells cascaded with non-uniform cell spacing, thus providing an increase in coupling coefficients between cells. The increased bandwidth is thereby obtained without placing a burden on the exterior housing dimensions relative to a normally spaced narrow bandwidth filter and without substantially reducing the unloaded Q's or increasing insertion losses.

REFERENCES:
patent: 3093803 (1963-06-01), Schlicke et al.
patent: 3159803 (1964-12-01), Czubiak et al.
patent: 3247475 (1966-04-01), Buetow et al.
patent: 3284728 (1966-11-01), Poschenrieder
patent: 3293644 (1966-12-01), Loos et al.
patent: 3387236 (1968-06-01), Womack, Jr.
patent: 3571768 (1971-03-01), Gundry
patent: 3581249 (1971-05-01), Spangler et al.
patent: 3693115 (1972-09-01), Edson
patent: 3728731 (1973-04-01), Choi et al.
patent: 3733608 (1973-05-01), McGhay et al.
patent: 3939443 (1976-02-01), Biro et al.
patent: 4007434 (1977-02-01), Fletcher et al.
patent: 4061992 (1977-12-01), Inokuchi
Cohn-"Direct Coupled-Resonator Filters", Proceedings of the IRE, Feb. 1957; pp. 187-196.
Kurzrok-"Design of Comb-Line Band-Pass Filters", IEEE Trans. on Microwave Theory and Techniques, vol. MTT -14, No. 7, Jul. 1966; pp. 351-353.

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