A plasmonic meta-rotary travelling-wave oscillator with ultrahigh phase accuracy and figure of merit.

ABSTRACT: High phase accuracy and figure of merit (FOM) of quadrature signals are essential for integrated systems, including quadrature amplitude modulation (QAM) communications and multi-input multi-output (MIMO) radar. However, the traditional quadrature oscillators often struggle to meet the stringent requirements of high FOM and high quadrature phase accuracy simultaneously. To address this challenge, we propose a spoof surface plasmon polariton (SPP) metawaveguide (Meta) to design on-chip rotary traveling-wave oscillator (RTWO). By leveraging the advanced dispersion manipulation capability of Meta, the physical and electrical lengths of transmission line (TL) are effectively decoupled, thereby overcoming the limitations associated with the unequal electrical lengths of inner and outer loops of

SUBMITTER: Yao DY 

PROVIDER: S-EPMC12370945 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature