Antenna array
First Claim
1. An antenna array comprising:
- an electrically conductive member having an electrically conductive surface in which a plurality of slots are open, the plurality of slots being arranged along at least one direction, a central portion of each slot extending along a first direction that extends in a manner of following along the electrically conductive surface; and
a plurality of electrically-conductive ridge pairs on the electrically conductive surface, each pair protruding from opposite edges of the central portion of a corresponding one of the plurality of slots, wherein,the plurality of slots include a first slot and a second slot that are adjacent to each other;
the plurality of ridge pairs include a first ridge pair protruding from opposite edges of the central portion of the first slot and a second ridge pair protruding from opposite edges of the central portion of the second slot;
a first gap between the first ridge pair enlarges from a root toward an apex of the first ridge pair;
a second gap between the second ridge pair enlarges from a root toward an apex of the second ridge pair;
a width of the root of the first ridge pair along the first direction is smaller than a dimension of the first slot along the first direction;
a width of the root of the second ridge pair along the first direction is smaller than a dimension of the second slot along the first direction; and
as viewed along the first direction,at least a portion of the first gap and at least a portion of the second gap overlap each other, with no other intervening electrically-conductive member therebetween, orat least a portion of the first ridge pair and at least a portion of the second ridge pair overlap each other, with no other intervening electrically-conductive member therebetween.
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Accused Products
Abstract
An antenna array includes: an electrically conductive member having an electrically conductive surface in which a plurality of slots are open; a plurality of electrically-conductive ridge pairs on the electrically conductive surface, each pair protruding from edges of the central portion of a corresponding one of the plurality of slots. As viewed along a direction that the central portion of each slot extends, at least a portion of the first gap between the first ridge pair and at least a portion of the second gap between the second ridge pair overlap each other, with no other intervening electrically-conductive member therebetween; or at least a portion of the first ridge pair and at least a portion of the second ridge pair overlap each other, with no other intervening electrically-conductive member therebetween.
54 Citations
25 Claims
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1. An antenna array comprising:
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an electrically conductive member having an electrically conductive surface in which a plurality of slots are open, the plurality of slots being arranged along at least one direction, a central portion of each slot extending along a first direction that extends in a manner of following along the electrically conductive surface; and a plurality of electrically-conductive ridge pairs on the electrically conductive surface, each pair protruding from opposite edges of the central portion of a corresponding one of the plurality of slots, wherein, the plurality of slots include a first slot and a second slot that are adjacent to each other; the plurality of ridge pairs include a first ridge pair protruding from opposite edges of the central portion of the first slot and a second ridge pair protruding from opposite edges of the central portion of the second slot; a first gap between the first ridge pair enlarges from a root toward an apex of the first ridge pair; a second gap between the second ridge pair enlarges from a root toward an apex of the second ridge pair; a width of the root of the first ridge pair along the first direction is smaller than a dimension of the first slot along the first direction; a width of the root of the second ridge pair along the first direction is smaller than a dimension of the second slot along the first direction; and as viewed along the first direction, at least a portion of the first gap and at least a portion of the second gap overlap each other, with no other intervening electrically-conductive member therebetween, or at least a portion of the first ridge pair and at least a portion of the second ridge pair overlap each other, with no other intervening electrically-conductive member therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An antenna array comprising:
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a plate-shaped first electrically conductive member having a first electrically conductive surface; a plate-shaped second electrically conductive member having a second electrically conductive surface opposing the first electrically conductive surface; a ridge-like first waveguide member protruding from the second electrically conductive surface, the first waveguide member having an electrically-conductive waveguide face extending in opposition to the first electrically conductive surface, and one end of the first waveguide member reaching an edge of the second electrically conductive member; a ridge-like second waveguide member protruding from the second electrically conductive surface, the second waveguide member extending in parallel to the first waveguide member and having an electrically-conductive waveguide face which extends in opposition to the first electrically conductive surface, and one end of the second waveguide member reaching the edge of the second electrically conductive member; an artificial magnetic conductor extending around the first and second waveguide members in between the first and second electrically conductive members; an electrically-conductive first ridge pair, one of the first ridge pair protruding from the one end of the first waveguide member, and another of the first ridge pair protruding from a first portion of an edge of the first electrically conductive member that is opposed to the one end of the first waveguide member; and an electrically-conductive second ridge pair, one of the second ridge pair protruding from the one end of the second waveguide member, and another of the second ridge pair protruding from a second portion of the edge of the first electrically conductive member that is opposed to the one end of the second waveguide member, wherein, a first gap between the first ridge pair enlarges from a root toward an apex of the first ridge pair; a second gap between the second ridge pair enlarges from a root toward an apex of the second ridge pair; and
,as viewed along the edge of the first electrically conductive member, at least a portion of the first gap and at least a portion of the second gap overlap each other, with no other intervening electrically-conductive member therebetween, or at least a portion of the first ridge pair and at least a portion of the second ridge pair overlap each other, with no other intervening electrically-conductive member therebetween.
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25. An antenna array comprising:
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a plate-shaped first electrically conductive member having a first electrically conductive surface; a plate-shaped second electrically conductive member having a second electrically conductive surface opposing the first electrically conductive surface and a third electrically conductive surface on an opposite side from the second electrically conductive surface, the second electrically conductive member having a first slit at an end thereof; a plate-shaped third electrically conductive member having a fourth electrically conductive surface opposing the third electrically conductive surface, the third electrically conductive member having a second slit at an end thereof; the first artificial magnetic conductor extending around the first slit in between the first and second electrically conductive members; and a second artificial magnetic conductor extending around the second slit in between the second and third electrically conductive members, wherein, an edge of the second electrically conductive member has a shape defining an electrically-conductive first ridge pair connected to the first slit; an edge of the third electrically conductive member has a shape defining an electrically-conductive second ridge pair connected to the second slit; a first gap between the first ridge pair enlarges from a root toward an apex of the first ridge pair; a second gap between the second ridge pair enlarges from a root toward an apex of the second ridge pair; and
,as viewed along a direction perpendicular to the first electrically conductive surface, at least a portion of the first gap and at least a portion of the second gap overlap each other, with no other intervening electrically-conductive member therebetween, or at least a portion of the first ridge pair and at least a portion of the second ridge pair overlap each other, with no other intervening electrically-conductive member therebetween.
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Specification