Multi-beam 4 GHz Microwave Apertures Using Current-Mode DFT Approximation on 65 nm CMOS

Abstract : A current-mode CMOS design is proposed for realizing receive mode multi-beams in the analog domain using a novel DFT approximation. High-bandwidth CMOS RF transistors are employed in low-voltage current mirrors to achieve bandwidths exceeding 4 GHz. Current mirrors realize the ADFT coefficients, which take simple values of 1, -1, 2, -2 only. An example using 1.2V current-mode approximate DFT on 65nm CMOS, with BSIM4 models from the RF kit, show up to 4 GHz with 8 independent aperture beams.
Type de document :
Communication dans un congrès
International Microwave Symposium (IMS), May 2015, Phoenix, United States
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https://hal.inria.fr/hal-01155302
Contributeur : Olivier Sentieys <>
Soumis le : mardi 26 mai 2015 - 14:12:26
Dernière modification le : mardi 16 janvier 2018 - 15:54:13

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  • HAL Id : hal-01155302, version 1

Citation

Viduneth Ariyarathna, Sunera Kulasekera, Arjuna Madanayake, Kye-Shin Lee, Dora Suarez, et al.. Multi-beam 4 GHz Microwave Apertures Using Current-Mode DFT Approximation on 65 nm CMOS. International Microwave Symposium (IMS), May 2015, Phoenix, United States. 〈hal-01155302〉

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