Assertion: radome's surface | /r/CapableOf | converge at said second center
Facets:
Source sentences:
text: Also in accordance with the invention there is provided a radome-lens for housing an antenna and amplifying transmitted or received rays, comprising: a shell of dielectric material, said shell having an outer surface, at least a portion of said outer surface being in the form of a small circle defined by a sphere and a plane intersecting said sphere, said outer surface defining a central axis normal to said plane and extending through the center of said sphere, an opening at one end of said shell for reception of an antenna therein, and an inner surface having a spherical cap portion at the end of said inner surface remote from said opening and a plurality of zones extending from said cap toward said opening, said cap and each said zone being concentrically disposed about said axis and centered at a second center, said second center lying on said central axis between said first mentioned center and said outer surface, and said zones being disposed between said second center and said cap, the radius of each said zone being larger by a predetermined amount than its adjacent zone remote from said opening, and said cap and each said zone being separated from its adjacent zones by a frusto-conical surface which converges at said second center, the radial height, h, of each said frusto-conical surface being given by: ##EQU2## where λ
text: Thus, it is clearly highly desirable to provide a radome-lens comprising: a shell of dielectric material having an outer surface in the form of a small circle defined by a sphere and a plane intersecting said sphere, an opening at one end of the shell for reception of an antenna therein, the surface having a central axis which is normal to the plane and extends through the center of the sphere, and an inner surface having a spherical portion centered at a second center disposed along the axis between the first mentioned center and the outer surface and including a plurality of zones extending toward the opening and concentrically disposed along the axis, each zone being centered at the second center, adjacent zones being separated by a frusto-conical surface which converges at the second center, the radial height, h, of each frusto-conical surface being given by ##EQU1##
text: Further in accordance with the invention there is provided a radome-lens for housing an antenna and amplifying transmitted or received rays, comprising: a shell of dielectric material, said shell having an outer surface, at least a portion of said outer surface being in the form of a small circle defined by a sphere and a plane intersecting said sphere, said outer surface defining a central axis normal to said plane and extending through the center of said sphere, an opening at one end of said shell for reception of an antenna therein, and an inner surface having a spherical cap portion at the end of said inner surface remote from said opening and a plurality of zones extending from said cap toward said opening, said cap and each said zone being concentrically disposed about said axis and centered at a second center, said second center lying on said central axis between said first mentioned center and said outer surface, and said zones being disposed between said second center and said cap, the radius of each said zone being larger by a predetermined amount than its adjacent zone remote from said opening, and said cap and each said zone being separated from its adjacent zones by a frusto-conical surface which converges at said second center, said radome-lens being adapted for reception or transmission of frequencies