  We present a loss-gain equalized reconfigurable phaser for dynamic radio
analog signal processing (R-ASP). Such a phaser provides real-time tunable
group delay response with all-pass transmission. We propose a lumped loss-gain
implementation, where tuning and equalization are mostly easily achieved. A
theoretical study derives the transfer function and the fundamental
characteristics of the device. The phaser is finally experimentally
demonstrated, first using a single loss-gain pair and finally a three cascaded
loss-gain pair structure with full reconfigurability , where up-chirp and
down-chirp group delays are shown for illustration. It is expected that this
phaser will find wide applications in radio analog signal processing (R-ASP)
systems requiring dynamic adaptability.
