Metallic delay lens and radiation characteristics of X-band horn-lens combination

Abstract

This paper presents design, development and testing of metallic delay lenses (with/without quarter wave surface matching and absorber lining around the edges) consisting of 3-dimensional arrays of thin circular aluminium obstacles with focal lengths of 110 and 125 cm at X-band. These lenses in conjunction with an X-band metal horn are experimentally tested for H and/or E plane radiation patterns and gain at 9.254, 9.6 and 10.05 GHz and their performances compared. © 1999 Taylor & Francis Group, LLC.