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Buchanan, N.B., Fusco, V.F., Van Der Vorst, M., Williams, M. and Winter, C. (2010) New Retrodirective Antenna Techniques for Mobile Terminal Applications. Proceedings of the 32nd Antenna Workshop, ESA/ESTEX, January 2010, 1-5.

has been cited by the following article:

• TITLE: A High-Speed DLL-Based Hybrid Phase Conjugator for 5G Beamforming

  AUTHORS: Michael Bolt, Mark Adams

  KEYWORDS: Network Architectures and Protocols, Radio Frequency Subsystems, Transceiver Design, Experimental and Prototype Results

  JOURNAL NAME: Circuits and Systems, Vol.11 No.3, March 31, 2020

  ABSTRACT: A delay-locked loop based hybrid phase conjugator (DLL-HPC) is presented as a possible solution for 5G beamforming. Theoretical background, unique capabilities, and experimental verification are presented. The proposed DLL-HPC provides backwards compatibility with existing beamforming protocols as well as sub-millisecond beamsteering and automatic mobile target tracking with zero communication overhead. A proof-of-concept DLL-HPC prototype has been constructed from commercially available components to operate in the 5G NR-FR1 band, indicating that the technique can be readily adopted with available technology.