Abstract :
Ruze and Rotman lenses are types of parallel-plate lens which can be used to form multiple beams for antenna arrays. An algebraic analysis is used to relate the different orders of phase aberration to the lens contours, and shows that lenses with zero second- and third-order aberrations can be designed. For a given array length and beam scan angle requirement, the analysis determines the minimum lens size and simplest design which can be used.
