Tunable 1st Order IIR Phase Shifter Design and Implementation

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dc.contributor.authorChivapreecha, Sorawat
dc.contributor.authorJongsataporn, Thitaphan
dc.date.accessioned2026-08-06T10:45:24Z
dc.date.available2026-08-06T10:45:24Z
dc.date.issued2024-01-01
dc.description.abstractThis paper presents a new phase shifter which is a first-order infinite impulse response (IIR) filter that can shift phase both in phase-lead (0° to+180°) and phase-lag (-180° to 0°) fashion. Moreover, continuous phase tuning is also proposed in our phase shifter. The z-transform pair of phase-shifted cosine signal is utilized as the origin, then factorization of such term can give transfer function of first-order IIR phase shifter. The filter structure realization of the tunable phase shifter will be shown and applied with a digital cosine oscillator. Both simulation and hardware experiments can show phase-shifted signals in real-time controlled by phase-tuning parameters compared with a cosine reference signal as a demonstration. The allpass phase shifter will be used as a benchmark, and trade-off analysis using the proposed phase shifter will also be discussed.
dc.identifier.citationIEEE Region 10 Annual International Conference Proceedings TENCON, 944-947, 2024
dc.identifier.doi10.1109/TENCON61640.2024.10902770
dc.identifier.issn21593442
dc.identifier.other2-s2.0-105000433846
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/15449
dc.sourceIEEE Region 10 Annual International Conference Proceedings TENCON
dc.subjectallpass filter
dc.subjectarbitrary phase shift
dc.subjectDigital phase shifter
dc.subjectIIR filter
dc.subjecttunable phase
dc.titleTunable 1st Order IIR Phase Shifter Design and Implementation
dc.typeConference Paper

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