Antenna cover, use of an antenna cover, adapter for connecting two antenna covers and method for producing a lens-shaped antenna cover

Patent metadata

Field	Value
Publication number	US-2017331183-A1
Application number	US-201415534502-A
Country	US
Kind code	A1
Filing date	Dec 11, 2014
Priority date	Dec 11, 2014
Publication date	Nov 16, 2017
Grant date	—

Abstract

An antenna cover is provided, including a first base body and at least two first fins arranged on the first base body, the first base body having a curved surface, the two first fins being arranged symmetrically to a longitudinal axis of symmetry of the antenna cover and extending substantially parallel to the longitudinal axis of symmetry, the at least two first fins having a width that tapers as a distance from the first base body increases, and the at least two first fins being arranged with a spacing that corresponds substantially to the width of the at least two fins. A method for producing a lens-shaped antenna cover is also provided.

First claim

1 .- 15 . (canceled)

16 . An antenna cover, comprising:
a first base body having a curved surface; and at least two first fins arranged on the first base body, the at least two first fins being arranged symmetrically to a longitudinal axis of symmetry of the antenna cover and extending substantially parallel to the longitudinal axis of symmetry, the at least two first fins having a width that tapers as a distance from the first base body increases, the at least two first fins being arranged with a spacing that substantially corresponds to the width of the at least two first fins, each of the at least two first fins having a crown region that follows a virtual mirrored curved surface of the first base body and that is less than a thickness of the first base body, and the virtual mirrored curved surface of the first base body and the curved surface of the first base body having a mirror axis and/or a mirror plane, which runs perpendicular to the longitudinal axis of symmetry.

17 . The antenna cover according to claim 16 , wherein the curved surface has an aspherical curvature.

18 . The antenna cover according to claim 16 , further comprising an even number of the at least two first fins.

19 . The antenna cover according to claim 16 ,
wherein the longitudinal axis of symmetry lies in a plane of symmetry, and wherein the first base body and the at least two first fins are arranged in minor symmetry to the plane of symmetry.

20 . The antenna cover according to claim 16 , wherein the at least two first fins are arranged in a comb-like manner along another width of the first base body.

21 . The antenna cover according to claim 16 ,
wherein the spacing between the at least two first fins has a valley region, and wherein the valley region lies on a parallel surface to the curved surface of the first base body.

22 . The antenna cover according to claim 16 , further comprising:
a second antenna cover, having a second base body and a plurality of second fins, a number of the plurality of second fins differs by a value of 1 from a number of the at least two first fins, the plurality of second fins having a width that substantially corresponds to the spacing between the at least two first fins and that tapers as a distance from the second base body increases, the plurality of second fins being arranged with the spacing that substantially corresponds to the width between the at least two first fins, and the plurality of second fins engages according to the number of the plurality of second fins in each case in the spacing.

23 . The antenna cover according to claim 16 , wherein the at least two first fins are arranged as concentric circles and/or as parallel fins.

24 . The antenna cover according to claim 21 , wherein the width of the at least two first fins substantially corresponds to the thickness of the first base body in an area of the valley region of the spacing.

25 . The antenna cover according to claim 16 , wherein the cover is in a shape of a lens.

26 . An antenna for a measuring device, the antenna comprising an antenna cover, the antenna cover comprising:
a first base body having a curved surface; and at least two first fins arranged on the first base body, the at least two first fins being arranged symmetrically to a longitudinal axis of symmetry of the antenna cover and extending substantially parallel to the longitudinal axis of symmetry, the at least two first fins having a width that tapers as a distance from the first base body increases, the at least two first fins being arranged with a spacing that substantially corresponds to the width of the at least two fins, each of the at least two first fins having a crown region that follows a virtual mirrored curved surface of the first base body and that is less than a thickness of the first base body, and the virtual mirrored curved surface of the first base body and the curved surface of the first base body having a mirror axis and/or a mirror plane, which runs perpendicular to the longitudinal axis of symmetry.

27 . A method for producing a lens-shaped antenna cover, comprising:
providing a first antenna cover, comprising
a first base body having a curved surface; and
at least two first fins arranged on the first base body,
the at least two first fins being arranged symmetrically to a longitudinal axis of symmetry of the first antenna cover and extending substantially parallel to the longitudinal axis of symmetry,
the at least two first fins having a width that tapers as a distance from the first base body increases,
the at least two first fins being arranged with a spacing that substantially corresponds to the width of the at least two first fins,
each of the at least two first fins having a crown region that follows a virtual mirrored curved surface of the first base body and that is less than a thickness of the first base body,
the virtual mirrored curved surface of the first base body and the curved surface of the first base body having a mirror axis and/or a mirror plane, which runs perpendicular to the longitudinal axis of symmetry, and
the first antenna cover having an even number of fins;
providing a second antenna cover, comprising
a second base body having the curved surface; and
at least two second fins arranged on the second base body,
the at least two second fins being arranged symmetrically to the longitudinal axis of symmetry of the second antenna cover and extending substantially parallel to the longitudinal axis of symmetry,
the at least two second fins having a width that tapers as a distance from the second base body increases,
the at least two second fins being arranged with a spacing that substantially corresponds to the width of the at least two second fins,
each of the at least two second fins having a crown region that follows a virtual mirrored curved surface of the second base body and that is less than a thickness of the second base body,
the virtual mirrored curved surface of the second base body and the curved surface of the second base body having a mirror axis and/or a mirror plane, which runs perpendicular to the longitudinal axis of symmetry, and
the second antenna cover having an odd number of fins; and
joining the first antenna cover and the second antenna cover so that the at least two first fins of the first antenna cover are disposed in spacings of the second antenna cover, and the at least two second fins of the second antenna cover are disposed in spacings of the second antenna cover.

Assignees

• Grieshaber Vega Kg

Inventors

• Lenk Fritz

Classifications

• H01Q1/225 Primary

  used in level-measurement devices, e.g. for level gauge measurement · CPC title

• H01Q13/02

  Waveguide horns · CPC title

• H01Q1/422 Primary

  comprising two or more layers of dielectric material (H01Q1/425 takes precedence) · CPC title

• H01Q15/08

  formed of solid dielectric material · CPC title

• H01Q19/062

  for focusing · CPC title