Title :
Analytical analysis of noise figures in FET resistive mixers
Author :
Ko, Won ; Kwon, Youngwoo
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
7/8/1999 12:00:00 AM
Abstract :
An analytical analysis of noise figure in FET resistive mixers is presented. For better accuracy, an empirical noise source model is employed for the intrinsic noise source. The contributions of each noise source and frequency component are represented in a phasor diagram, and a simplified noise figure formula is derived. The modelled noise figure is compared with the measured data, yielding excellent agreement
Keywords :
circuit noise; field effect transistor circuits; microwave circuits; microwave mixers; FET resistive mixers; empirical noise source model; intrinsic noise source; noise figures; phasor diagram;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990791
