Name
Title | ||
|---|---|---|
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 with good beam fidelity. Current mirrors realize the coefficients of the considered DFT approximation, which take simple values in {0,±1,±2} only. This allows high bandwidths realizations using simple circuitry without needing phase-shifters or delays. The proposed design is used as a method to efficiently achieve spatial discrete Fourier transform operation across a ULA to obtain multiple simultaneous RF beams. An example using 1.2 V current-mode approximate DFT on 65 nm CMOS, with BSIM4 models from the RF kit, show potential operation up to 4 GHz with eight independent aperture beams. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/MWSYM.2015.7167112 | Microwave Symposium |
Keywords | Field | DocType |
CMOS integrated circuits,current mirrors,discrete Fourier transforms,microwave transistors,BSIM4 model,RF beam,RF kit,ULA,analog domain,beam fidelity,complementary metal oxide semiconductor,current-mode CMOS design,current-mode DFT approximation,delay circuit,frequency 4 GHz,high-bandwidth CMOS RF transistor,independent aperture beam,low-voltage current mirror,microwave aperture,phase-shifter,receive mode multibeam,size 65 nm,spatial discrete Fourier transform,uniformly-spaced linear array,voltage 1.2 V,Analog,aperture,arrays,beamforming,multi-beam | Aperture,Beamforming,Microwave,Telecommunications,Current mirror,Electronic engineering,CMOS,Beam (structure),Discrete Fourier transform,Transistor,Optoelectronics,Mathematics | Journal |
Volume | ISSN | Citations |
abs/1505.06345 | 0149-645X | 0 |
PageRank | References | Authors |
0.34 | 0 | 8 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| viduneth ariyarathna | 1 | 0 | 0.34 |
| Sunera Kulasekera | 2 | 40 | 4.63 |
| Arjuna Madanayake | 3 | 242 | 53.31 |
| Kye-shin Lee | 4 | 0 | 0.34 |
| D. Suarez | 5 | 1 | 0.72 |
| Renato J. Cintra | 6 | 218 | 26.82 |
| fabio m bayer | 7 | 20 | 1.75 |
| Leonid Belostotski | 8 | 113 | 30.72 |