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A low-loss W-band frequency-scanning antenna for wideband multichannel radar applications

: Schneider, David A.; Rösch, Markus; Tessmann, Axel; Zwick, Thomas


IEEE antennas and wireless propagation letters 18 (2019), Nr.4, S.806-810
ISSN: 1536-1225
Fraunhofer IAF ()
frequency scanning; leaky-wave antennas (LWAs); millimeter-wave radar; slotted waveguide; wideband radar

A class of nonresonant slotted waveguide antennas particularly suited for wideband millimeter-wave radar and imaging applications is introduced. Inspired by a variation of the classic narrow-wall leaky structure, it possesses a high degree of design flexibility and is easily integrated into steerable arrays. A reliable manufacturing concept is presented and demonstrated by means of simulations and measurements on a first prototype, complemented by an experimental evaluation of the antenna’s in-system performance as part of a frequency-modulated continuous-wave radar.