Method for formation of radiometric images and an antenna for implementation of the method
First Claim
Patent Images
1. A scanning antenna, comprising:
- an antenna rotor comprising;
a planar dielectric wave-guide,a two-dimensional diffraction grating, andan irradiator; and
a rotating wave-guide transition configured to rotate relative to the antenna rotor,wherein the planar dielectric wave-guide is non-parallel to the diffraction grating, anda gap between the planar dielectric wave-guide and the diffraction grating that changes in a smooth and non-linear manner.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of radiometric image generation is provided using a series of isochronous revolutions of a multi-beam antenna with a dispersion characteristic. The antenna is combined with a multi-channel receiver with frequency channel separation to form an imaging unit. The method comprising cyclically executing the following phases: two separate calibration phase; using first and second standards; external radiation reception phase; data processing phase and data transformation phase.
12 Citations
19 Claims
-
1. A scanning antenna, comprising:
-
an antenna rotor comprising; a planar dielectric wave-guide, a two-dimensional diffraction grating, and an irradiator; and a rotating wave-guide transition configured to rotate relative to the antenna rotor, wherein the planar dielectric wave-guide is non-parallel to the diffraction grating, and a gap between the planar dielectric wave-guide and the diffraction grating that changes in a smooth and non-linear manner.
-
-
2. A scanning antenna, comprising:
-
an antenna rotor comprising; a planar dielectric wave-guide, a two-dimensional diffraction grating, and an irradiator; and a rotating wave-guide transition configured to rotate relative to the antenna rotor, wherein the planar dielectric wave-guide further comprises a parabolic edge provided with a metallic film.
-
-
3. A scanning antenna, comprising:
-
an antenna rotor comprising; a planar dielectric wave-guide, a two-dimensional diffraction grating, and an irradiator; and a rotating wave-guide transition configured to rotate relative to the antenna rotor, and a force canceller configured to rotate relative to the antenna rotor. - View Dependent Claims (4, 5, 6, 7, 8, 9)
-
-
10. A scanning antenna, comprising:
-
an antenna rotor comprising; a planar dielectric wave-guide, a two-dimensional diffraction grating, and an irradiator; and a rotating wave-guide transition configured to rotate relative to the antenna rotor, wherein the scanning antenna is configured to provide an output signal behind the diffraction grating, and wherein the irradiator is configured to provide an output signal behind the diffraction grating by turning the wave propagation direction by 90°
, two times. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
-
18. A scanning antenna, comprising:
-
an antenna rotor comprising; a planar dielectric wave-guide, a two-dimensional diffraction grating, and an irradiator; and a rotating wave-guide transition configured to rotate relative to the antenna rotor, wherein the irradiator further comprises a direction coupler and a noise generator such that the antenna is configured to perform calibration directly within the irradiator, the antenna further comprising a directional coupler for introducing radiation into the antenna, wherein the directional coupler is provided on one side of a parabolic portion of the irradiator or the dielectric waveguide.
-
-
19. A scanning antenna, comprising:
-
an antenna rotor comprising; a planar dielectric wave-guide, a two-dimensional diffraction grating, and an irradiator; a rotating wave-guide transition configured to rotate relative to the antenna rotor; a band filter; a plurality of low-noise amplifiers; a first switch; a first heterodyne; a first mixer; and an intermediate frequency amplifier; wherein an output from the irradiator is fed to the band filter, the plurality of low noise amplifiers, the first switch, the first heterodyne, the first mixer, and the intermediate frequency amplifier before being introduced into the rotating wave-guide transition.
-
Specification