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US 11,605,903 B2Granted
Array antenna apparatus and method for manufacturing array antenna apparatus
AssigneeMitsubishi Electric Corporation
InventorsHikaru Watanabe, Takashi Maruyama, Masataka Otsuka, Yu Ushijima, Kazunari Kihira
Life of this patent
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Abstract
Waveguide slot array antennas each having slots, that transmit or receive electromagnetic waves and that are formed in a front surface of a waveguide and waveguide slot array antennas each having slots that transmit or receive electromagnetic waves and that are formed in a front surface of a waveguide, and the waveguide slot array antennas and the waveguide slot array antennas are alternately arranged, the waveguide is a ridge waveguide having a ridge formed inside the waveguide, and the waveguide is a ridge waveguide having ridges, formed inside the waveguide.
Claims4
An array antenna apparatus, comprising:
- a first antenna including a first waveguide with a first slot for transmitting or receiving an electromagnetic wave, the first slot being formed in a front surface of the first waveguide;
- and
- a second antenna including a second waveguide with a second slot for transmitting or receiving an electromagnetic wave, the second slot being formed in a front surface of the second waveguide, wherein
- the first antenna and the second antenna are alternately arranged,
- the first waveguide is a ridge waveguide having a first protrusion formed inside,
- the second waveguide is a ridge waveguide having a second protrusion formed inside, and
- of surfaces of the first protrusion, a plane parallel to the front surface of the first waveguide and, of surfaces of the second protrusion, a plane parallel to the front surface of the second waveguide are in a same plane,
- wherein
- the first slot is an opening whose longitudinal direction is in waveguide axial direction of the first waveguide,
- the second slot is an opening whose longitudinal direction is in waveguide width direction of the second waveguide,
- the first protrusion is a protrusion extending from a bottom of a cavity of the first waveguide toward the front surface of the first waveguide, and
- the second protrusion is a protrusion extending from a side part of a cavity of the second waveguide toward an opposite side part.
9 more elements
An array antenna apparatus, comprising:
- a first antenna comprising a first waveguide with a first slot for transmitting or receiving an electromagnetic wave, the first slot being formed in a front surface of the first waveguide;
- and
- a second antenna comprising a second waveguide with a second slot for transmitting or receiving an electromagnetic wave, the second slot being formed in a front surface of the second waveguide, wherein
- the first antenna and the second antenna are alternately arranged,
- the first waveguide is a ridge waveguide having a first protrusion formed inside,
- the second waveguide is a ridge waveguide having a second protrusion formed inside, and
- a dimension in a waveguide width direction of the first waveguide differs from a dimension in a waveguide width direction of the second waveguide,
- wherein
- of surfaces of the first protrusion, a plane parallel to the front surface of the first waveguide and, of surfaces of the second protrusion, a plane parallel to the front surface of the second waveguide are in a same plane,
- wherein
- the first slot is an opening whose longitudinal direction is a waveguide axial direction of the first waveguide,
- the second slot is an opening whose longitudinal direction is a waveguide axial direction of the second waveguide,
- the first protrusion is a protrusion extending from a bottom of a cavity of the first waveguide toward the front surface of the first waveguide, and
- the second protrusion is a protrusion extending from a bottom of a cavity of the second waveguide toward the front surface of the second waveguide.
11 more elements
An array antenna apparatus, comprising:
- a first antenna comprising a first waveguide with a first slot for transmitting or receiving an electromagnetic wave, the first slot being formed in a front surface of the first waveguide;
- and
- a second antenna comprising a second waveguide with a second slot for transmitting or receiving an electromagnetic wave, the second slot being formed in a front surface of the second waveguide, wherein
- the first antenna and the second antenna are alternately arranged,
- the first waveguide is a ridge waveguide having a first protrusion formed inside,
- the second waveguide is a ridge waveguide having a second protrusion formed inside, and
- a dimension in a height direction of the first waveguide differs from a dimension in a height direction of the second waveguide,
- wherein
- of surfaces of the first protrusion, a plane parallel to the front surface of the first waveguide and, of surfaces of the second protrusion, a plane parallel to the front surface of the second waveguide are in a same plane,
- wherein
- the first slot is an opening whose longitudinal direction is a waveguide width direction of the first waveguide,
- the second slot is an opening whose longitudinal direction is a waveguide width direction of the second waveguide,
- the first protrusion is a protrusion extending from a side part of a cavity of the first waveguide toward an opposite side part, and
- the second protrusion is a protrusion extending from a side part of a cavity of the second waveguide toward an opposite side part.
11 more elements
Dependencies are inferred from the claim text.