Multi-beam 4 GHz Microwave Apertures Using Current-Mode DFT Approximation on 65 nm CMOS - Archive ouverte HAL Access content directly
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Multi-beam 4 GHz Microwave Apertures Using Current-Mode DFT Approximation on 65 nm CMOS

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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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Dates and versions

hal-01155302 , version 1 (26-05-2015)

Identifiers

  • HAL Id : hal-01155302 , version 1

Cite

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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