Concept for a Novel Low-Complexity QAM Transceiver Architecture Suitablefor Close to Transition Frequency Operation

Carlowitz C, Vossiek M (2015)

Publication Language: English

Publication Type: Conference contribution, Conference Contribution

Publication year: 2015

Publisher: Institute of Electrical and Electronics Engineers Inc.

Event location: Phoenix US

ISBN: 9781479982752

DOI: 10.1109/MWSYM.2015.7166983

Abstract

The implementation of ultra-high speed mm-wave and THz transceivers based on homodyne concepts suffers from severe scaling issues with respect to system complexity, circuit size and power consumption as such transceivers nowadays typically need to operate close to the transition frequency of the underlying semiconductor process. In order to mitigate these severe issues, we propose a novel regenerative sampling concept based on a simple positive feedback low-gain amplifier stage. We show for the first time a concept that allows to regenerate quadrature modulated signals with minimal effort based on a simultaneous phase and amplitude regenerative sampling (SPARS) process. This concept enables attractive alternatives to the homodyne approach, e.g., a synthesizer-free self-mixing receiver, which significantly reduces the complexity of the receiver circuit. This paper provides the proof-of-concept of the novel approach by simulations and by measurements with a lumped element 22 GHz 16-QAM feasibility demonstrator.

Authors with CRIS profile

Christian Carlowitz Lehrstuhl für Hochfrequenztechnik Martin Vossiek Lehrstuhl für Hochfrequenztechnik

How to cite

APA:

Carlowitz, C., & Vossiek, M. (2015). Concept for a Novel Low-Complexity QAM Transceiver Architecture Suitablefor Close to Transition Frequency Operation. In Proceedings of the IEEE MTT-S International Microwave Symposium, IMS 2015. Phoenix, US: Institute of Electrical and Electronics Engineers Inc..

MLA:

Carlowitz, Christian, and Martin Vossiek. "Concept for a Novel Low-Complexity QAM Transceiver Architecture Suitablefor Close to Transition Frequency Operation." Proceedings of the IEEE MTT-S International Microwave Symposium, IMS 2015, Phoenix Institute of Electrical and Electronics Engineers Inc., 2015.

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