A filtering technique to lower LC oscillator phase noise
(2001) In IEEE Journal of Solid-State Circuits 36(12). p.1921-1930- Abstract
- Based on a physical understanding of phase-noise mechanisms, a passive LC filter is found to lower the phase-noise factor in a differential oscillator to its fundamental minimum. Three fully integrated LC voltage-controlled oscillators (VCOs) serve as a proof of concept. Two 1.1-GHz VCOs achieve -153 dBc/Hz at 3 MHz offset, biased at 3.7 mA from 2.5 V. A 2.1-GHz VCO achieves -148 dBc/Hz at 15 MHz offset, taking 4 mA from a 2.7-V supply. All oscillators use fully integrated resonators, and the first two exceed discrete transistor modules in figure of merit. Practical aspects and repercussions of the technique are discussed.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1244430
- author
- Hegazi, Emad ; Sjöland, Henrik LU and Abidi, Asad
- organization
- publishing date
- 2001
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- UHF oscillators, passive filters, phase noise, voltage-controlled oscillators
- in
- IEEE Journal of Solid-State Circuits
- volume
- 36
- issue
- 12
- pages
- 1921 - 1930
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:0035696224
- ISSN
- 0018-9200
- DOI
- 10.1109/4.972142
- language
- English
- LU publication?
- yes
- id
- c3a118fd-c8d5-40f7-80f7-0503dfaab42c (old id 1244430)
- date added to LUP
- 2016-04-01 17:04:49
- date last changed
- 2024-04-12 12:39:04
@article{c3a118fd-c8d5-40f7-80f7-0503dfaab42c, abstract = {{Based on a physical understanding of phase-noise mechanisms, a passive LC filter is found to lower the phase-noise factor in a differential oscillator to its fundamental minimum. Three fully integrated LC voltage-controlled oscillators (VCOs) serve as a proof of concept. Two 1.1-GHz VCOs achieve -153 dBc/Hz at 3 MHz offset, biased at 3.7 mA from 2.5 V. A 2.1-GHz VCO achieves -148 dBc/Hz at 15 MHz offset, taking 4 mA from a 2.7-V supply. All oscillators use fully integrated resonators, and the first two exceed discrete transistor modules in figure of merit. Practical aspects and repercussions of the technique are discussed.}}, author = {{Hegazi, Emad and Sjöland, Henrik and Abidi, Asad}}, issn = {{0018-9200}}, keywords = {{UHF oscillators; passive filters; phase noise; voltage-controlled oscillators}}, language = {{eng}}, number = {{12}}, pages = {{1921--1930}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Journal of Solid-State Circuits}}, title = {{A filtering technique to lower LC oscillator phase noise}}, url = {{https://lup.lub.lu.se/search/files/4868573/1244619.pdf}}, doi = {{10.1109/4.972142}}, volume = {{36}}, year = {{2001}}, }