Sheet metal waveguide horn antenna
AssigneeRCA Corporation
InventorJohn Joseph Risko
Life of this patent
Estimating the term…
Abstract
A waveguide horn antenna for transmitting or receiving microwave energy. The antenna comprises a tapered horn portion attached to a straight waveguide portion adapted to be coupled to a source or detector of microwave energy. The walls of the antenna are made of folded sheet metal stamped according to predetermined patterns for simple assembly.
Claims5
A microwave energy waveguide horn antenna having a tapered horn portion of rectangular cross-section attached at its narrower end to a straight waveguide portion of rectangular cross-section, comprising:
- a first section defining three walls of said horn portion;
- a second section defining three walls of said waveguide portion and the fourth wall of said horn portion;
- said first and second sections being formed of folded sheet metal;
- a third metallic section defining the fourth wall of said waveguide portion;
- and
- fastening means for attaching together said first, second and third sections to form said waveguide horn antenna having an open-ended horn portion and an open-ended waveguide portion.
A method of making a waveguide horn antenna having a tapered horn portion of rectangular cross-section attached at its narrower end to a straight waveguide portion of rectangular cross-section, which comprises the steps of:
- folding a first section of sheet metal into three walls of said horn portion;
- folding a second section of sheet metal into three walls of said waveguide portion and the fourth wall of said horn portion and;
- attaching by fastening means said folded first and second sections to a third section comprising the fourth wall of said waveguide portion to form said waveguide horn antenna having an open-ended horn portion and an open-ended waveguide portion.
Dependencies are inferred from the claim text.