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US 2020/0028250 A1Published application
Antenna device
AssigneeMitsubishi Electric Corporation
InventorsShimpei AKIMOTO, Takashi YANAGI, Yasuhiro NISHIOKA
Life of this patent
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Abstract
A line conductor is configured so as to be arranged between a lower surface conductor and an upper surface conductor in parallel with the lower surface conductor in such a way as to extend around the periphery of a hollow cylindrical conductor in a state in which an end is connected to a side surface of the hollow cylindrical conductor and another end is open. As a result, efficient supply of power to a conductive liquid can be performed without disposing a conducting tube having a length of approximately λ/4 at an operating frequency.
Claims8
An antenna device comprising:
- a lower surface conductor in which a first hole is formed at a center thereof;
- an upper surface conductor in which a second hole having a diameter larger than a diameter of the first hole is formed at a center thereof, the upper surface conductor being arranged in parallel with the lower surface conductor in such a way that a central axis of the first hole and a central axis of the second hole correspond to each other;
- a side surface conductor to connect between an outer peripheral portion of the lower surface conductor and an outer peripheral portion of the upper surface conductor;
- a hollow cylindrical conductor having an inner diameter identical to the diameter of the first hole, and an outer diameter smaller than the diameter of the second hole, a lower end portion thereof being connected to the lower surface conductor in such a way that the central axis of the first hole and a central axis of the inner diameter correspond to each other;
- a line conductor that is arranged between the lower surface conductor and the upper surface conductor in parallel with the lower surface conductor in such a way as to extend around a periphery of the hollow cylindrical conductor in a state in which an end thereof is connected to a side surface of the hollow cylindrical conductor and another end thereof is open;
- and
- a feeding point in which an end thereof is connected to the lower surface conductor and another end thereof is connected to the line conductor, and to which an alternating voltage is applied,
- wherein a conductive liquid supplied from the first hole passes through an inside of the hollow cylindrical conductor, and is emitted from the inside of the hollow cylindrical conductor toward an outside.
5 more elements
An antenna device comprising:
- a lower surface conductor in which a first hole is formed at a center thereof;
- an upper surface conductor in which a second hole having a diameter larger than a diameter of the first hole is formed at a center thereof, the upper surface conductor being arranged in parallel with the lower surface conductor in such a way that a central axis of the first hole and a central axis of the second hole correspond to each other;
- a side surface conductor to connect between an outer peripheral portion of the lower surface conductor and an outer peripheral portion of the upper surface conductor;
- a hollow cylindrical conductor having an inner diameter identical to the diameter of the first hole, and an outer diameter smaller than the diameter of the second hole, a lower end portion thereof being connected to the lower surface conductor in such a way that the central axis of the first hole and a central axis of the inner diameter correspond to each other;
- a line conductor in which an end thereof is connected to a side surface of the hollow cylindrical conductor and which is arranged between the lower surface conductor and the upper surface conductor in parallel with the lower surface conductor;
- a short circuiting conductor in which an end thereof is connected to the lower surface conductor;
- a capacitive member in which an end thereof is connected to another end of the line conductor, and another end thereof is connected to another end of the short circuiting conductor;
- and
- a feeding point in which an end thereof is connected to the lower surface conductor and another end thereof is connected to the line conductor, and to which an alternating voltage is applied,
- wherein a conductive liquid supplied from the first hole passes through an inside of the hollow cylindrical conductor, and is emitted from the inside of the hollow cylindrical conductor toward an outside.
7 more elements
Dependencies are inferred from the claim text.