رکورد قبلیرکورد بعدی

" A silicon-based 0.3 THz frequency synthesizer with wide locking range "


Document Type : AL
Record Number : 911476
Doc. No : LA4sn0v4gt
Title & Author : A silicon-based 0.3 THz frequency synthesizer with wide locking range [Article]\ Chiang, PY; Wang, Z; Momeni, O; Heydari, P
Date : 2014
Title of Periodical : UC Irvine
Abstract : © 1966-2012 IEEE. A 300 GHz frequency synthesizer incorporating a triple-push VCO with Colpitts-based active varactor (CAV) and a divider with three-phase injection is introduced. The CAV provides frequency tunability, enhances harmonic power, and buffers/injects the VCO fundamental signal from/to the divider. The locking range of the divider is vastly improved due to the fact that the three-phase injection introduces larger allowable phase change and injection power into the divider loop. Implemented in 90 nm SiGe BiCMOS, the synthesizer achieves a phase-noise of -77.8 dBc/Hz (-82.5 dBc/Hz) at 100 kHz (1 MHz) offset with a crystal reference, and an overall locking range of 280.32-303.36 GHz (7.9%).
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4sn0v4gt_12105.pdf
4sn0v4gt.pdf
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