| 摘要 |
<p>A waveguide lens antenna (WGLA) with especially wideband characteristics is described. The geometry of the WGLA is shaped to result in ideal phase shift over a maximum bandwidth. The specific convex shape makes it possible to modulate the phase of all waveguides to generate a plane wave over a much wider frequency band than has earlier been possible. The waveguides are circular symmetric oriented which result in a favourable S-parameter matrix and low cross polar level. The WGLA have scanning properties i.e. provide multiple beams by moving the feeds on the focal plane behind the WGLA.</p> |
