Title :
Modeling of monolithic RF spiral transmission-line balun
Author :
Yoon, Yeong J. ; Lu, Yicheng ; Frye, Robert C. ; Smith, Peter R.
Author_Institution :
SyChip Inc., Lucent Technol. Bell Labs., Murray Hill, NJ, USA
fDate :
2/1/2001 12:00:00 AM
Abstract :
This paper presents models for monolithic RF spiral transmission-line baluns. The balun consists of a pair of spiral transformers fabricated on high-resistivity silicon. The lumped-element equivalent models are developed. The second-order or higher order models are synthesized from the first-order lumped model. All lumped parameters for the models are extracted from the real physical structures. Simulated behaviors from the second-order models are in good agreement with the measured results within 10% difference
Keywords :
MMIC; S-parameters; UHF integrated circuits; baluns; coupled transmission lines; equivalent circuits; integrated circuit modelling; strip line components; transmission line theory; RF spiral transmission-line balun; Si; high-resistivity Si; higher order models; lumped-element equivalent models; modelling; monolithic transmission-line balun; second-order models; spiral transformers; Capacitance; Coils; Distributed parameter circuits; Impedance matching; Radio frequency; Silicon; Spirals; Transformers; Transmission line measurements; Transmission lines;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
