Proceedings of TUSUR University / Archive / Issue of Journal № 1, t. 28, 2025 / Ku-Band GaAs-MMIC Digital 8-Bit Phase Shifter

Ku-Band GaAs-MMIC Digital 8-Bit Phase Shifter

DOI: 10.21293/1818-0442-2025-28-1-59-64

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Abstract: This paper presents the rationale for the chosen circuit designs and describes the development process of a GaAs monolithic microwave integrated circuit (MMIC) for a digital phase shifter intended for Ku-band operation. This phase shifter, featuring eight switchable states, can be used in transmit/receive modules (TRMs) of an airborne radar with an active phased array antenna (APAA). The work focuses on circuit design solutions, component integration, and performance optimization of the phase shifter, ensuring high phase accuracy and low insertion and return losses for the developed integrated circuit. The simulation results are presented, confirming the phase shifter's compliance with the specified technical requirements. Further stages include production and experimental study of the developed device, taking advantage of the increased number of phase shift states.

Keywords: digital phase shifter, switched phase shifter, active phased array antenna, microwave, GaAs, pHEMT, microwave semiconductor integrated circuit, monolithic integrated circuit

For citation:
Schukin V. E., Ketov R. S., Miller Yu. A., Luzhaytsev D. A., Turov A. O., Shimanovskiy D. S. Ku-Band GaAs-MMIC Digital 8-Bit Phase Shifter. Doklady Tomskogo gosudarstvennogo universiteta sistem upravleniya i radioelektroniki, 2025, vol. 28, no. 1, pp. 59–64. DOI: 10.21293/1818-0442-2025-28-1-59-64

Authors and copyright holders:

Schukin V. E. , Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)
Ketov R. S. , Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)
Miller Yu. A. , Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)
Luzhaytsev D. A. , Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)
Turov A. O. , Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)
Shimanovskiy D. S. , Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)

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