Antenna for a level meter employing the radar principle

• US 7,683,848 B2
• Filed: 02/20/2008
• Issued: 03/23/2010
• Est. Priority Date: 02/23/2007
• Status: Expired due to Fees

• Current Assignee: Krohne Messtechnik GmbH & Co. KG
• Original Assignee: Krohne Messtechnik GmbH & Co. KG
• Inventors: Matt, Achim, Gerding, Michael, Musch, Thomas
• Primary Examiner(s): Le; HoangAnh T
• Application Number:
  US12/034,096
• Publication Number:
  US 20080204351A1
• Time in Patent Office: 762 Days
• Field of Search: 343/772, 343/785, 343/786
• US Class Current: 343/786
• CPC Class Codes: G01F 23/284 Electromagnetic waves
• CPC Class Codes: H01Q 1/225 used in level-measurement devices, e.g. for level gauge measurement
• CPC Class Codes: H01Q 19/08 for modifying the radiation pattern of a radiating horn in which it is located corrugated horns H01Q13/0208; producing a circular polarisation H01Q13/0241

Abstract

In an antenna for a level meter employing the radar principle, a fastening device is provided for detachably mounting a dielectric insert in the antenna. The fastening device may be a continuous clamping collar that clamps the dielectric insert in place in the antenna. This offers a simple, universally employable possibility for fastening a dielectric insert in the antenna.

Claims

1. A horn antenna for a level meter employing the radar principle, with a dielectric insert, wherein a fastening device is provided for the removable attachment of the dielectric insert in the antenna, said fastening device being a spring assembly provided on an inner wall of the antenna and which presses against an outer wall of the dielectric insert, said spring assembly comprising a spring and a spring-loaded retaining ball which clicks into corresponding concave detents in the outer wall of the dielectric insert.

2. The antenna as in claim 1, wherein the antenna is of metal.

3. The antenna as in claim 1, wherein the dielectric insert completely fills the interior space of the antenna.