A microstrip-based Rotman lens for mm-wave sensing operations

Rotman lenses offer a compact, rugged and reliable means of forming multi-beam staring array sensing arrangements. The successful implementation of Rotman devices, that operate at mm-wave frequencies, is important to a wide range of applications ranging from covert military operations and collision avoidance in cars and boats in poor weather, to landing aids for aircraft. This paper discusses the development of a Ka-band microstrip-based Rotman lens that is to be used in collision avoidance and other military related roles.

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