On-board meteorological radar having a rotating antenna
First Claim
1. A meteorological radar, to be installed on board an aircraft, comprising:
- an antenna including a pedestal, rotationally mounted relative to the mechanical support around an axis of rotation;
a mechanical support;
an electronic scanning system;
at least one blade fixed to the pedestal and extending radially along the axis of rotation; and
a plurality of radiating elements distributed along a free side of the blade not contiguous to the pedestal, the free side perceptibly having the shape of a portion of a conic with a focal axis merged with the axis of rotation in a plane including the axis of rotation, each radiating element being configured to radiate along a radiation axis included in the plane and being connected to the electronic scanning system.
1 Assignment
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Accused Products
Abstract
A meteorological radar installed on board an aircraft, including a mechanical support fixed to a bulkhead of a nose of the aircraft, wherein an antenna is mounted on the mechanical support to enable turning mobility around an axis of rotation. The antenna includes a pedestal, on which at least one blade, extending radially along the axis of rotation, is installed. A free side of the blade, along which a plurality of radiating elements is distributed, perceptibly has the shape of a portion of conic in a plane including the axis of rotation. Because the blade is mobile only in rotation along the axis of rotation, and the selection of the emission/reception direction is performed electronically, not mechanically, the space and length requirements of the meteorological radar are fixed, whether the meteorological radar is in operation or not, and are determined based on the eccentricity and parameter of the conic.
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Citations
8 Claims
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1. A meteorological radar, to be installed on board an aircraft, comprising:
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an antenna including a pedestal, rotationally mounted relative to the mechanical support around an axis of rotation; a mechanical support; an electronic scanning system; at least one blade fixed to the pedestal and extending radially along the axis of rotation; and a plurality of radiating elements distributed along a free side of the blade not contiguous to the pedestal, the free side perceptibly having the shape of a portion of a conic with a focal axis merged with the axis of rotation in a plane including the axis of rotation, each radiating element being configured to radiate along a radiation axis included in the plane and being connected to the electronic scanning system. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An aircraft comprising:
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a fuselage; a radome fixed to the fuselage, the radome defining a housing, and the fuselage including a bulkhead closing the housing; and a meteorological radar installed in the housing and having an antenna including a pedestal, rotationally mounted relative to the mechanical support around an axis of rotation; a mechanical support; an electronic scanning system; at least one blade fixed to the pedestal and extending radially along the axis of rotation; and a plurality of radiating elements being distributed along a free side of the blade not contiguous to the pedestal, the free side perceptibly having the shape of a portion of a conic with a focal axis merged with the axis of rotation in a plane including the axis of rotation, each radiating element being capable of radiating along an axis included in the plane and being connected to the electronic scanning system, the mechanical support being fixed to the bulkhead, and the axis of rotation of the meteorological radar being perceptibly aligned with a longitudinal axis of the aircraft.
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Specification