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A 5.8-GHz Quadrature Cross-Coupled Oscillator |
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| Authors: | Jorge R. Fernandes Michiel H. L. Kouwenhoven Chris van den Bos Koen van Hartingsveldt Chris Verhoeven |
| Affiliation: | (1) I.S.Técnico/INESC-ID-Lisboa, R. Alves Redol, 9-1000 Lisboa, Portugal;(2) National Semiconductor B.V., Delft, the Netherlands;(3) Electronics Res. Lab./Dimes, Mekelweg, Delft University of Technology, 4-2628 CD Delft |
| Abstract: | This paper describes the implementation of a quadrature cross-coupled relaxation oscillator to be used in an OFDM RF front-end transceiver. A prototype of the oscillator was realized in a SiGe BiCMOS technology, and an oscillation frequency of 5.8 GHz was obtained which is 1/6 of the maximum fT of the bipolar transistors. The circuit performance is evaluated by simulation and by experiment. |
| Keywords: | cross-coupled oscillators quadrature oscillators relaxation oscillators |
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