Resonator structure
AssigneeLK-Products Oy
InventorErkki O. Niiranen
Life of this patent
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Abstract
The invention relates to a resonator structure comprising a printed board of an insulating material; a helix resonator mounted on the printed board, the helix resonator being formed by a wire wound into a cylindrical coil with a number of turns, one of the turns comprising a straight portion bent in parallel with the surface of the printed board; and a casing surrounding the helix resonator and having at least an inner and outer surface made of an electrically conductive material. In order to improve the reproduction fidelity of the matching of the helix resonator in series production, the resonator structure according to the invention is characterized in that a micro strip conductor is provided on the surface of the printed board, the microstrip being electrically connected to a predetermined position on said straight portion.
Claims10
A resonator structure comprising:
- a printed board of an insulating material;
- a helix resonator mounted on the printed board, the helix resonator being formed by a wire wound into a cylindrical coil with a number of turns, one of the turns comprising a straight portion bent in parallel with the surface of the printed board;
- a casing surrounding the helix resonator and having at least the inner and outer surface made of an electrically conductive material, and
- a micro strip provided on the surface of the printed board, said coil straight portion and said micro strip being selectively placed in mutual engagement and electrically connected at a predetermined position along said straight portion to form a tapping point whereby said micro strip will automatically provide an accurate predetermined tapping of the helix resonator by means of the electrical connection when the helix resonator is mounted on the printed board in a fixed position.
A resonator structure comprising
- a printed board of an insulating material;
- a projection formed on the edge of the printed board;
- a helix resonator mounted on the printed board to surround said projection, the helix resonator being formed by a wire wound into a cylindrical coil with a number of turns, one of the turns comprising a straight portion bent inwardly substantially in parallel with the diameter of the resonator and the surface of the printed board;
- a casing surrounding the helix resonator and having at least the inner and outer surface made of an electrically conductive material, and
- a micro strip provided on the surface of the printed board, the microstrip being electrically connected to a predetermined position on said straight portion.
Dependencies are inferred from the claim text.