A Walsh-Based Arbitrary Waveform Generator for 5G Applications in 28nm FD-SOI CMOS Technology
Language
EN
Article de revue
This item was published in
IEEE Access. 2023-11-01, vol. 11, p. 117434-117442
English Abstract
This paper presents the first Arbitrary Waveform Generator (AWG) based on Walsh’s theory for wideband radio frequency (RF) conversion. The architecture is dedicated to 5G-FR1 applications (sub-6GHz) to perform a direct and ...Read more >
This paper presents the first Arbitrary Waveform Generator (AWG) based on Walsh’s theory for wideband radio frequency (RF) conversion. The architecture is dedicated to 5G-FR1 applications (sub-6GHz) to perform a direct and large bandwidth conversion while achieving the highest energy efficiency. The circuit generates Walsh sequences weighted by Walsh coefficients thanks to dedicated Digital-to-Analog Converters (DACs). It embeds an internal memory to feed the data to be converted for measurement purposes. The sum of the weighted Walsh sequences carries out RF signals made of intrinsically synchronous aggregated channels over a frequency range between 600 MHz and 4 GHz. A high-level simulation study is performed as well as transistor-level simulation including post-layout and Monte-Carlo analysis. The circuit is designed in 28nm FD-SOI CMOS technology from STMicroelectronics. The power consumption is 44 mW depicting an energy per bit of 0.34 pJ/bit, the lowest of the state of the art to the authors’ knowledge.Read less <
Keywords
Transistors
Signal generators
Generators
Radio frequency
CMOS technology
5G mobile communication
Matlab
5G
Broadband
Carrier aggregation
Hadamard
Sub-6GHz
Walsh transform
Wideband
RF DAC
Frequency interleaving