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Active Vector Modulator Design for Self-Interference Cancellation in STAR Systems | IEEE Conference Publication | IEEE Xplore

Active Vector Modulator Design for Self-Interference Cancellation in STAR Systems


Abstract:

Simultaneous transmit and receive (STAR) systems require effective methods of self-interference cancellation for proper functionality. A common method involves the use of...Show More

Abstract:

Simultaneous transmit and receive (STAR) systems require effective methods of self-interference cancellation for proper functionality. A common method involves the use of RF cancellers in the direct interference path between the transmitting and receiving antennas of a multi-antenna system. This work presents a novel vector modulator prototype circuit to be used in a multi-tap RF canceller. In-phase and quadrature components are individually controlled to produce any gain magnitude over a full 360° tuning range. The prototype demonstrates between 40 and 50 dB of gain over its 6:1 operational bandwidth from 400 to 2400 MHz. The device’s output 1-dB compression point and third-order intercept were also measured and demonstrate excellent performance across its operating frequency range, proving it suitable for in-band full-duplex (IBFD) systems.
Date of Conference: 21-24 January 2024
Date Added to IEEE Xplore: 21 February 2024
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Conference Location: San Antonio, TX, USA

References

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