A 5.8 GHz Si/SiGe VCO with amplitude control for wireless LAN applications

Authors
Grau, G Langmann, U Winkler, W Knoll, D Pressel, K
Citation
G. Grau et al., A 5.8 GHz Si/SiGe VCO with amplitude control for wireless LAN applications, IEICE TR EL, E84C(10), 2001, pp. 1437-1441
Citations number
8
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEICE TRANSACTIONS ON ELECTRONICS
ISSN journal
09168524 → ACNP
Volume
E84C
Issue
10
Year of publication
2001
Pages
1437 - 1441
Database
ISI
SICI code
0916-8524(200110)E84C:10<1437:A5GSVW>2.0.ZU;2-T
Abstract
We present a 5.8 GHz VCO for the 5 GHz HIPERLAN/2 and U-NII band. The VCO u ses a center-tapped inductor and a substrate shield to improve phase noise. Sensitivity to supply voltage and temperature is reduced by an amplitude c ontrol block. The design is based on a distributed inductor model which all ows optimization without antecedent inductor measurements. The circuit is f abricated in a 0.8 mum 45 GHz f(T) low-cost SiGe-HBT technology and operate s with a supply voltage of -2.0 V to -3.3 V.