Title :
Exact noise parameters of lossy transmission lines
Author :
Shimon, R. ; Feng, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
This paper presents exact expressions for the noise parameters of a lossy transmission line in terms of its characteristic impedance, propagation constant and physical length. These expressions are valid for complex values of characteristic impedance, generalizing previously published approximate expressions that assume real values of characteristic impedance. Like the approximate expressions, the exact expressions accept positive and negative values of length, making them quite useful for analysis and design.
Keywords :
electric impedance; matrix algebra; noise; transmission line theory; characteristic impedance; exact expressions; lossy transmission lines; noise parameters; physical length; propagation constant; Admittance; Conductors; Coplanar waveguides; Frequency; Impedance; Planar transmission lines; Propagation constant; Propagation losses; Transmission line matrix methods; Transmission lines;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.779422
