In this paper, a compact and low-cost electronic circuit system is designed to time reverse short impulses in microwave
regime. The proposed system consists of three major parts: (i) Fourier transform, to obtain discrete spectra of input
impulses; (ii) Digital signal processing, to digitize spectral samples resulted from the first part and process them; and
finally (iii) Inverse Fourier transform, to synthesize time-reversed impulses using discrete continuous wave elements.
This architecture is composed of commercially available semi-conductor components, including oscillators,
multipliers/mixers, band-pass-filters, amplifiers, and switches. Thus, it can embody a system-on-chip implementation of
real-time time-reversal. Its performance is demonstrated by Advanced Design System simulations, with time-reversal of
impulses with around 1.4 ns temporal width and [22, 29] GHz spectral coverage in noisy environments as examples.