Back to results
US 12,658,590 B2Granted
Antenna device
AssigneeMitsubishi Electric Corporation
InventorsHiroaki Sakamoto, Hidetoshi Makimura, Yasuhiro Nishioka
Life of this patent
Estimating the term…
Abstract
An antenna device includes: a feeding point that excites a high-frequency signal; a first conductor having a first end serving as a first open end and extending from the feeding point to the first open end; and a second conductor having a first end serving as a second open end and extending spirally between the feeding point and the second open end in a direction different from a direction directed from the feeding point to the first open end.
Claims8
An antenna device comprising:
- a ground conductor substrate including a dielectric substrate, a first ground conductor disposed on a front surface of the dielectric substrate, and a second ground conductor disposed on a back surface of the dielectric substrate in parallel with the first ground conductor;
- a plurality of element antennas arranged on a surface of the first ground conductor;
- a coaxial line penetrating the dielectric substrate and having an outer conductor to electrically connect the first ground conductor and the second ground conductor to each other;
- and
- an interface circuit to function as at least either:
- a combining circuit to connect the plurality of element antennas to the coaxial line, to turn high-frequency signals different in phase from each other, output from the plurality of element antennas into phase-aligned high-frequency signals, to combine the phase-aligned high-frequency signals, and to output a combined high-frequency signal to the coaxial line;
- or
- a dividing circuit to divide a high-frequency signal transmitted by the coaxial line into a plurality of signals different in phase from each other, and to output the divided high-frequency signals to the respective plurality of element antennas, wherein
- each of the plurality of element antennas includes:
- a third conductor having a first end connected to the first ground conductor and extending linearly from the first ground conductor to a branch point in a zenith direction;
- a first conductor having a first end serving as a first open end and extending from the branch point to the first open end in a horizontal direction orthogonal to the zenith direction;
- and
- a second conductor having a first end serving as a second open end and extending spirally between the branch point and the second open end in a direction different from a direction directed from the branch point to the first open end and further comprising a plurality of dielectric blocks corresponding to the respective plurality of element antennas and arranged on a surface of the first ground conductor in the ground conductor substrate,
- wherein each of the plurality of dielectric blocks has a surface on which the first conductor, the second conductor, and the third conductor of each of the plurality of corresponding element antennas are formed.
11 more elements
An antenna device comprising:
- a ground conductor substrate including a dielectric substrate, a first ground conductor disposed on a front surface of the dielectric substrate, and a second ground conductor disposed on a back surface of the dielectric substrate in parallel with the first ground conductor;
- a plurality of element antennas arranged on a surface of the first ground conductor;
- a coaxial line penetrating the dielectric substrate and having an outer conductor to electrically connect the first ground conductor and the second ground conductor to each other;
- and
- an interface circuit to function as at least either:
- a combining circuit to connect the plurality of element antennas to the coaxial line, to combine high-frequency signals having different in phase from each other, output from the plurality of element antennas, and to output a combined high-frequency signal to the coaxial line;
- or
- a dividing circuit to divide a high-frequency signal transmitted by the coaxial line into a plurality of signals different in phase from each other, and to output divided high-frequency signals to the respective plurality of element antennas, wherein
- each of the plurality of element antennas includes:
- a first conductor having a first end serving as a first open end, having a second end connected to the first ground conductor, having a connection point with the first ground conductor as a feeding point to excite a high-frequency signal, and having a first portion and a second portion, the first portion extending from the first ground conductor in a zenith direction, and the second portion extending continuously from the first portion to the first open end in a horizontal direction orthogonal to the zenith direction;
- and
- a second conductor having a first end serving as a second open end and having a third portion and a fourth portion, the third portion facing the first portion of the first conductor, and the fourth portion spirally extending continuously from the third portion to the second open end in a direction different from a direction in which the second portion of the first conductor goes toward the first open end and further comprising a plurality of dielectric blocks corresponding to the respective plurality of element antennas and arranged on a surface of the first ground conductor in the ground conductor substrate,
- wherein each of the plurality of dielectric blocks has a surface on which the first conductor, the second conductor, and the third conductor of each of the plurality of corresponding element antennas are formed.
10 more elements
Dependencies are inferred from the claim text.