A Delay-Based LO Phase-Shifting Generator for a 2-5GHz Beamsteering Receiver in 28nm CMOS

Unnikrishnan, Vishnu; Anttila, Lauri; Valkama, Mikko (2019-09)
 
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Unnikrishnan, Vishnu
Anttila, Lauri
Valkama, Mikko
09 / 2019

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doi:10.1109/ESSCIRC.2019.8902864
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https://urn.fi/URN:NBN:fi:tuni-202001311741

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Non peer reviewed
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This paper proposes a wideband 2-5GHz LO phase-shifting generator based on two digitally controlled delay lines. The concept is verified on a two-channel beamsteering direct-conversion receiver prototype implemented in 28nm CMOS. The novel generator provides both tunable phase-shifting and generation of I/Q components, achieving picosecond time resolution. The generator consumes 4.5-11.2mW and occupies 0.021mm2.
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