Ultra-high frequency filter with a dielectric resonator tunable in a large band width
First Claim
1. A dielectric resonator ultra-high frequency filter, comprising a hollow rectangular enclosure, input and output plugs fixed to said enclosure, and at least one dielectric resonator placed inside said enclosure and which comprises a first component made from a dielectric material and fixed relative to the enclosure, and a second component made from a dielectric material, the dielectric constant of the second component having a value approximately half the value of the dielectric constant of the first component, the second component being movable relative to the enclosure and having a facing surface with respect to a surface of the first component, the distance between said two surfaces being variable and enabling the filter to be tuned in a large band width.
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Abstract
A dielectric resonator ultra-high frequency filter tunable in a large band width in which each dielectric resonator is constituted by a dielectric component with a high dielectric constant, which is fixed relative to an enclosure and a component made from the same dielectric material which is movable relative to the first component, in such a way that the distance d between facing surfaces of these two dielectric components varies, leading to a variation in the tuning frequency of the filter by modifying the coupling conditions.
41 Citations
5 Claims
- 1. A dielectric resonator ultra-high frequency filter, comprising a hollow rectangular enclosure, input and output plugs fixed to said enclosure, and at least one dielectric resonator placed inside said enclosure and which comprises a first component made from a dielectric material and fixed relative to the enclosure, and a second component made from a dielectric material, the dielectric constant of the second component having a value approximately half the value of the dielectric constant of the first component, the second component being movable relative to the enclosure and having a facing surface with respect to a surface of the first component, the distance between said two surfaces being variable and enabling the filter to be tuned in a large band width.
Specification