Transition from a waveguide to a strip transmission line

• US 6,265,950 B1
• Filed: 10/15/1999
• Issued: 07/24/2001
• Est. Priority Date: 09/11/1996
• Status: Expired due to Fees

• Current Assignee: Dynex Semiconductor Ltd. (CRRC Corp. Ltd.), Robert Bosch GmbH
• Original Assignee: Dynex Semiconductor Ltd. (CRRC Corp. Ltd.), Robert Bosch GmbH
• Inventors: Müller, Roland, Nash, Colin, Bird, John, Voigtländer, Klaus, Dutzi, Joachim, Dennerlein, Gerd, Dawson, David Neil, Pettit, Cyril Edward, Lucas, Bernhard, Schmidt, Ewald, Olbrich, Herbert, Martin, Siegbert, Mayer, Hermann, Beez, Thomas, Prime, Brian
• Primary Examiner(s): LEE, BENNY T
• Application Number:
  US09/254,742
• Time in Patent Office: 648 Days
• Field of Search: 333/26, 333/34
• US Class Current: 333/26
• CPC Class Codes: H01P 5/107 Hollow-waveguide/strip-line transitions

Abstract

In order for it to be possible to manufacture a transition with a cost-effective stamping or diecasting or cold-molding process or with a plastic injection-molding process with subsequent metal plating, at least one ridge situated in the waveguide, which reduces the waveguide cross section in the direction of the stripline, has a cross section which tapers conically in the direction of the stripline.

Claims

1. A transition arrangement for providing a transition zone between a waveguide and a stripline, comprising:

at least one ridge situated in the waveguide, the at least one ridge extending from a respective wall of the waveguide which extends parallel to the stripline and is vertically separated from the stripline, the at least on ridge being bonded to the stripline, the at least one ridge having a height that increases in steps in a longitudinal axis of the waveguide in a direction of the stripline, a shape of a cross-section of the at least one ridge being tapered perpendicularly to the longitudinal axis, extending from the respective wall in the direction of the stripline, all of the steps of the at least one ridge being tapered in the cross-section facing the stripline, wherein a portion of the at least one ridge connected to the stripline has the narrowest cross-section of the at least one ridge;

wherein all of the steps of the at least one ridge are tapered to a same cross-sectional width facing the stripline.

2. The transition arrangement according to claim 1, wherein the at least one ridge includes a first ridge and a second ridge, the first ridge being situated on a first wall of the waveguide which is above the stripline, the second ridge being situated on a second wall of the waveguide which is below the stripline.

3. The transition arrangement according to claim 1 wherein the stripline protrudes into the waveguide.

4. The transition arrangement according to claim 1, wherein the stripline is positioned at one end of the waveguide.

5. A transition arrangement for providing a transition zone between a waveguide and a stripline, comprising;

at least one ridge situated in the waveguide, the at least one ridge extending from a respective wall of the waveguide which extends parallel to the stripline and is vertically separated from the stripline, the at least one ridge being bonded to the stripline, the at least one ridge having a height that increases in steps in a longitudinal axis of the waveguide in a direction of the stripline, a shape of a cross-section of the at least one ridge being tapered perpendicularly to the longitudinal axis, extending from the respective wall in the direction of the stripline, all of the steps of the at least one ridge being tapered in the cross-section facing the stripline, wherein a portion of the at least one ridge connected to the stripline has the narrowest cross-section of the at least one ridge.

6. The transition arrangement according to claim 5, wherein the stripline protrudes into the waveguide.

7. The transition arrangement according to claim 5, wherein the stripline is positioned at at one end of the waveguide.

8. The transition arrangement according to claim 5, wherein the at least one ridge includes a first ridge and a second ridge, the first ridge being situated on a first wall of the waveguide which is above the stripline, the second ridge being situated on a second wall of the waveguide which is below the stripline.