High frequency filter
First Claim
1. A high frequency filter of coaxial construction, including at least one resonator comprising:
- an electrically conductive internal conductor configured as an internal conductive tube;
an electrically conductive external conductors;
an electrically conductive base which electrically interconnects the internal conductor and the external conductors;
a cover covering at least the high frequency filter with respect to the base and having an inner side and outer side, the inner side pointing toward a free end of the internal conductive tube;
a dielectric layer having a relative dielectric constant greater than 2 arranged between the outer side of the cover and the free end of the internal conductive tube;
the radial extent of the dielectric layer substantially covering the cross section of the internal conductive tube at the free end thereof;
whereinthe dielectric layer is arranged on or fastened to the cover, andwherein the dielectric layer is inserted in a recess in the inner side of the cover.
6 Assignments
0 Petitions
Accused Products
Abstract
An improved high frequency filter of coaxial construction comprises one or more resonators having an electrically conductive internal conductor configured as an internal conductive tube and an electrically conductive external conductor. An electrically conductive base electrically interconnects the internal conductor and the external conductor. A cover covers the high frequency filter with respect to the base; and an inner side and outer side. The inner side points toward a free end of the internal conductive tube. A dielectric layer having a dielectric constant Er greater than 2 is arranged between the outer side of the cover and the free end of the internal conductive tube. The radial extent of the dielectric layer substantially covers the cross section of the internal conductive tube at the free end thereof.
4 Citations
19 Claims
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1. A high frequency filter of coaxial construction, including at least one resonator comprising:
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an electrically conductive internal conductor configured as an internal conductive tube; an electrically conductive external conductors; an electrically conductive base which electrically interconnects the internal conductor and the external conductors; a cover covering at least the high frequency filter with respect to the base and having an inner side and outer side, the inner side pointing toward a free end of the internal conductive tube; a dielectric layer having a relative dielectric constant greater than 2 arranged between the outer side of the cover and the free end of the internal conductive tube; the radial extent of the dielectric layer substantially covering the cross section of the internal conductive tube at the free end thereof; wherein the dielectric layer is arranged on or fastened to the cover, and wherein the dielectric layer is inserted in a recess in the inner side of the cover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification