Slot array antenna
First Claim
1. A slot array antenna comprising:
- an electrically conductive member having an electrically conductive surface and a plurality of slots therein, the plurality of slots being arrayed in a first direction which extends along the electrically conductive surface;
a waveguide member having an electrically conductive waveguide face which opposes the plurality of slots and extends along the first direction; and
an artificial magnetic conductor extending on both sides of the waveguide member, wherein,at least one of the electrically conductive member and the waveguide member includes a plurality of dents on the electrically conductive surface and/or the waveguide face, the plurality of dents each serving to broaden a spacing between the electrically conductive surface and the waveguide face relative to any adjacent site;
the plurality of dents include a first dent, a second dent, and a third dent which are adjacent to one another and consecutively follow along the first direction; and
a distance between centers of the first dent and the second dent is different from a distance between centers of the second dent and the third dent.
2 Assignments
0 Petitions
Accused Products
Abstract
A slot array antenna includes: an electrically conductive member having an electrically conductive surface and slots therein, the slots being arrayed in a first direction which extends along the conductive surface; a waveguide member having an electrically conductive waveguide face which opposes the slots and extends along the first direction; and an artificial magnetic conductor extending on both sides of the waveguide member. At least one of the conductive member and the waveguide member includes dents on the conductive surface and/or the waveguide face, the dents each serving to broaden a spacing between the conductive surface and the waveguide face relative to any adjacent site. The dents include a first, second, and third dents which are adjacent to one another and consecutively follow along the first direction. A distance between centers of the first and second dents is different from a distance between centers of the second and third dents.
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Citations
19 Claims
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1. A slot array antenna comprising:
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an electrically conductive member having an electrically conductive surface and a plurality of slots therein, the plurality of slots being arrayed in a first direction which extends along the electrically conductive surface; a waveguide member having an electrically conductive waveguide face which opposes the plurality of slots and extends along the first direction; and an artificial magnetic conductor extending on both sides of the waveguide member, wherein, at least one of the electrically conductive member and the waveguide member includes a plurality of dents on the electrically conductive surface and/or the waveguide face, the plurality of dents each serving to broaden a spacing between the electrically conductive surface and the waveguide face relative to any adjacent site; the plurality of dents include a first dent, a second dent, and a third dent which are adjacent to one another and consecutively follow along the first direction; and a distance between centers of the first dent and the second dent is different from a distance between centers of the second dent and the third dent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 14, 15, 16, 17, 18, 19)
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9. A slot array antenna comprising:
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an electrically conductive member having an electrically conductive surface and a plurality of slots therein, the plurality of slots being arrayed in a first direction which extends along the electrically conductive surface; a waveguide member having an electrically conductive waveguide face which opposes the plurality of slots and extends along the first direction; and an artificial magnetic conductor extending on both sides of the waveguide member, wherein, at least one of the electrically conductive member and the waveguide member includes a plurality of bumps on the electrically conductive surface and/or the waveguide face, the plurality of bumps each serving to narrow a spacing between the electrically conductive surface and the waveguide face relative to any adjacent site; the plurality of bumps include a first bump, a second bump, and a third bump which are adjacent to one another and consecutively follow along the first direction; and a distance between centers of the first bump and the second bump is different from a distance between centers of the second bump and the third bump.
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10. A slot array antenna comprising:
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an electrically conductive member having an electrically conductive surface and a plurality of slots therein, the plurality of slots being arrayed in a first direction which extends along the electrically conductive surface; a waveguide member having an electrically conductive waveguide face which opposes the plurality of slots and extends along the first direction; and an artificial magnetic conductor extending on both sides of the waveguide member, wherein, the waveguide member includes a plurality of broad portions on the waveguide face, the plurality of broad portions each serving to broaden width of the waveguide face relative to any adjacent site; the plurality of broad portions include a first broad portion, a second broad portion, and a third broad portion which are adjacent to one another and consecutively follow along the first direction; and a distance between centers of the first broad portion and the second broad portion is different from a distance between centers of the second broad portion and the third broad portion.
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11. A slot array antenna comprising:
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an electrically conductive member having an electrically conductive surface and a plurality of slots therein, the plurality of slots being arrayed in a first direction which extends along the electrically conductive surface; a waveguide member having an electrically conductive waveguide face which opposes the plurality of slots and extends along the first direction; and an artificial magnetic conductor extending on both sides of the waveguide member, wherein, the waveguide member includes a plurality of narrow portions on the waveguide face, the plurality of narrow portions each serving to narrow width of the waveguide face relative to any adjacent site; the plurality of narrow portions include a first narrow portion, a second narrow portion, and a third narrow portion which are adjacent to one another and consecutively follow along the first direction; and a distance between centers of the first narrow portion and the second narrow portion is different from a distance between centers of the second narrow portion and the third narrow portion.
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12. A slot array antenna comprising:
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an electrically conductive member having an electrically conductive surface and a plurality of slots therein, the plurality of slots being arrayed in a first direction which extends along the electrically conductive surface; a waveguide member having an electrically conductive waveguide face which opposes the plurality of slots and extends along the first direction; and an artificial magnetic conductor extending on both sides of the waveguide member, wherein, a waveguide extending between the electrically conductive surface and the waveguide face includes a plurality of positions at which capacitance of the waveguide exhibits a local maximum or a local minimum; the plurality of positions include a first position, a second position, and a third position which are adjacent to one another and consecutively follow along the first direction; and a distance between centers of the first position and the second position is different from a distance between centers of the second position and the third position.
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13. A slot array antenna comprising:
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an electrically conductive member having an electrically conductive surface and a plurality of slots therein, the plurality of slots being arrayed in a first direction which extends along the electrically conductive surface; a waveguide member having an electrically conductive waveguide face which opposes the plurality of slots and extends along the first direction; and an artificial magnetic conductor extending on both sides of the waveguide member, wherein, a waveguide extending between the electrically conductive surface and the waveguide face includes a plurality of positions at which inductance of the waveguide exhibits a local maximum or a local minimum, the plurality of positions include a first position, a second position, and a third position which are adjacent to one another and consecutively follow along the first direction; and a distance between centers of the first position and the second position is different from a distance between centers of the second position and the third position.
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Specification