Small, low-pass filter for high power applications

Details Small, low-pass filter for high power applications Small, low-pass filter for high power applications

1994-09-08

1996-11-19

Lee, Benny

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333168, 333175, H01P 1205, H01P 1202

Patent

active

055766730

ABSTRACT:
A small (about 8 inches long) low pass, high power (4000 watts) electric filter may include a tubular outer conductor separated from an dielectric sleeve by an outer dielectric that may be an air-filled gap. The dielectric sleeve surrounds a series of alternating capacitive elements and inductive elements. Each of the capacitive elements includes an inner conductor, such as a copper slug, that contacts the dielectric sleeve. Each of the inductive elements has a helical wire coil surrounded by a dielectric silicone compound that contacts the dielectric sleeve and the inner conductor. The silicone compound in the inductive elements facilitates heat transfer from the inductive elements and increases capacitive capacity. The air gap between the outer conductor and the dielectric sleeve adds another capacitor. The outer conductor and the dielectric sleeve may touch to improve heat transfer from the filter.

REFERENCES:
patent: 2844801 (1958-07-01), Sabarott
patent: 3267396 (1966-08-01), Scott
patent: 3506936 (1970-04-01), Loos et al.
patent: 3541478 (1970-11-01), Peterson et al.
patent: 3579156 (1971-05-01), Parfitt
patent: 3909755 (1975-09-01), Kaunzinger
patent: 4021759 (1977-05-01), Campi
patent: 4223287 (1980-09-01), Nishikawa et al.
patent: 4680560 (1987-07-01), Yorita et al.

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