Bandpass phase shifter and analytic signal generator

In this note, a novel tunable bandpass filter/phase shifter implementation (with a Hilbert transformer as a special case) is proposed. The filter can also be used to synthesize a bandpass analytic signal from a real-valued signal. The novelty is the simple, yet elegant implementation that exploits the even and odd symmetry of the in-phase and quadrature carrier modulation. HighlightsAlternate tunable bandpass phase shifter implementation is proposed.Exploits even and odd symmetry of in-phase and quadrature carrier modulation.Novel, simple yet elegant, architecture to shift the phase by any arbitrary angle.Hilbert transform computation of a bandpass signal as a specific case is presented.