Before revision: This new technology might be seen as microwave and millimeter-wave counterpart of ultra-fast optics signal processing, and has been recently enabled by a wide range of novel ``phasers, '' components following arbitrary group delay versus frequency responses.
After revision: This new technology might be seen as microwave and millimeter-wave counterpart of ultra-fast optics signal processing, and has been recently enabled by a wide range of novel phasers, thatcomponents following arbitrary group delay versus frequency responses.