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

Viduneth Ariyarathna 1 Sunera Kulasekera 1 Arjuna Madanayake 1 Kye-Shin Lee 1 Dora Suarez 2 Renato Cintra 2, 3 Fábio Bayer 4 Leonid Belostotski 5
1 University of Akron
2 UFPE - Universidade Federal de Pernambuco [Recife]
3 CAIRN - Energy Efficient Computing ArchItectures with Embedded Reconfigurable Resources
Inria Rennes – Bretagne Atlantique , IRISA-D3 - ARCHITECTURE
4 UFSM - Universidade Federal de Santa Maria
5 University of Calgary
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.
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Conference papers
Complete list of metadatas
https://hal.inria.fr/hal-01155302
Contributor : Olivier Sentieys <>
Submitted on : Tuesday, May 26, 2015 - 2:12:26 PM
Last modification on : Thursday, January 7, 2021 - 4:34:05 PM

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  • HAL Id : hal-01155302, version 1

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CNRS | UNIV-RENNES1 | INRIA | IRISA | IRISA-D3 | INSTITUT-TELECOM | UR1-UFR-ISTIC | CENTRALESUPELEC | UNIV-RENNES | INSA-RENNES

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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