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Conventional radar absorbing materials may be divided into two main types: those which employ one or more thin resistive sheets separated by dielectric spacers, such as the Salisbury screen, and those comprised of one or more lossy layers, such as the Dallenbach absorber. Both types operate by absorbing electromagnetic energy incident upon them and converting it into heat. In this paper, however, we describe a new class of "absorber", the so-called phase-switched screen (PSS), which phase modulates electromagnetic energy reflected from its surface to produce a scattered field with a low time-averaged energy spectral density.
Antennas and Propagation Society International Symposium, 2001. IEEE (Volume:4 )
Date of Conference: 8-13 July 2001