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A mixed time-frequency RF simulation technique based on numerical time-slot partitioning
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| The increasing complexity of radio frequency (RF) architectures and the continuous push to profit from digital signal-processing techniques, have been addressing new challenges to circuit-level simulation. This paper describes the most relevant details of a time-frequency simulation technique specially conceived for the efficient numerical simulation of circuits whose stimuli are turned on and off for unknown periods of time, as is the case of RF circuits managing signals coded in some on-off digital scheme. The proposed technique is based on a time-slot partition stratagem with automatic switching between different numerical schemes (multitime envelope transient harmonic balance and time-step integration) along the simulation process, according to the on-off state of the circuits’ stimuli. Simulation tests performed in an illustrative application example, an on-off amplitude shift keying (ASK/OOK) transmitter used in low-power applications, as radio frequency identification (RFID) or biomedical imaging, revealed significant gains in computational speed over commercial computer-aided design tools. | 248.87 KB | Adobe PDF |
Autores
Orientador(es)
Resumo(s)
The increasing complexity of radio frequency (RF) architectures and the continuous push to profit from digital signal-processing techniques, have been addressing new challenges to circuit-level simulation. This paper describes the most relevant details of a time-frequency simulation technique specially conceived for the efficient numerical simulation of circuits whose stimuli are turned on and off for unknown periods of time, as is the case of RF circuits managing signals coded in some on-off digital scheme. The proposed technique is based on a time-slot partition stratagem with automatic switching between different numerical schemes (multitime envelope transient harmonic balance and time-step integration) along the simulation process, according to the on-off state of the circuits’ stimuli. Simulation tests performed in an illustrative application example, an on-off amplitude shift keying (ASK/OOK) transmitter used in low-power applications, as radio frequency identification (RFID) or biomedical imaging, revealed significant gains in computational speed over commercial computer-aided design tools.
Descrição
Conference date - 19 July 2021 - 22 July 2021; Conference code - 172054
Palavras-chave
circuit simulation numerical simulation partial differential equations radio frequency
Contexto Educativo
Citação
J. F. Oliveira, "A Mixed Time-Frequency RF Simulation Technique Based on Numerical Time-Slot Partitioning," SMACD / PRIME 2021; International Conference on SMACD and 16th Conference on PRIME, online, 2021, pp. 76-79.
Editora
IEEE Canada
Licença CC
Sem licença CC