Title :
Noise waves and passive linear multiports
Author :
Wedge, Scott W. ; Rutledge, David B.
Author_Institution :
Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA
fDate :
5/1/1991 12:00:00 AM
Abstract :
Noise waves are a powerful means for characterizing noise in microwave circuits. A simple derivation is given for the relation between a passive circuit´s noise-wave correlation matrix and its scattering matrix. It is shown that this relation, referred to as Bosma´s theorem, can be readily derived from the fundamental principle that a passive multiport in thermodynamic equilibrium with reflectionless terminations produces uncorrelated output waves.<>
Keywords :
S-matrix theory; linear network analysis; microwave circuits; multiport networks; passive networks; Bosma´s theorem; microwave circuits; noise waves; noise-wave correlation matrix; passive linear multiports; reflectionless terminations; scattering matrix; thermodynamic equilibrium; uncorrelated output waves; Bandwidth; Circuit noise; Flow graphs; Load flow; Microwave circuits; Microwave theory and techniques; Noise generators; Particle scattering; Temperature; Thermodynamics;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
