Corrugated waveguide or feedhorn assembled from grooved pieces
AssigneeBell Telephone Laboratories, Incorporated
InventorCorrado Dragone
Life of this patent
Estimating the term…
Abstract
The present invention relates to a rectangular corrugated waveguide or feedhorn wherein a plurality of adjacent grooves of a predetermined depth and cross-section are formed, preferably by numerical machining, in a major exposed surface of each of four plates of an electrically conductive material. The four plates are then secured together to form a rectangular corrugated passage therebetween where the ends of the line of grooves in one plate substantially meet and are aligned with the ends of corresponding grooves in another plate to form a solid line of electrically conductive material at the corners of the passage.
Claims11
A method of fabricating a rectangular corrugated waveguide or feedhorn section, the method comprising the steps of:
- (a) forming a plurality of grooves of a predetermined depth and cross-section disposed in a line in a direction along a minor cross-sectional axis of the grooves in a major exposed surface of each of four separate plates comprising an electrically conductive material;
- and
- (b) disposing the four plates formed in step (a) relative to each other for forming a hollow corrugated rectangular guide section with a predetermined sized passage therethrough such that the ends of the grooves in each of the plates both substantially meet and are essentially aligned with ends of the grooves in a separate other plate of the four plates at each of the corners of the hollow guide section to provide a line of electrically conductive material at each of the corners of the passage through the guide section.
A rectangular corrugated waveguide or feedhorn section comprising:
- four plates comprising an electrically conductive material, each plate including a plurality of grooves of a predetermined depth and cross-section disposed in a line in a direction along a minor cross-sectional axis of the grooves in a major exposed surface of each of the four plates, the four plates being disposed relative to each other to form a hollow corrugated rectangular guie section with a predetermined sized passage therethrough such that the ends of the grooves in each of the plates both substantially meet and are essentially aligned with the ends of the grooves in a separate other plate of the four plates at each of the corners of the hollow guide section to provide a line of electrically conductive material at each of the corners of the passage through the guide section.
Dependencies are inferred from the claim text.