Title :
Improved analytical analysis of noise figures in HEMT mixers
Author :
Won Ko ; Youngwoo Kwon
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
An analytical analysis of noise figures in HEMT mixers is presented. Improved method was developed to evaluate the noise correlation. A simplified analytical expression for noise figure of HEMT mixer was also derived. The contribution of each noise source at various frequencies was represented in a phasor form to permit physical understanding of noise mechanism. The modeled noise figure was compared with the measured data, yielding a good agreement.
Keywords :
HEMT circuits; circuit noise; mixers (circuits); HEMT mixer; analytical model; noise correlation; noise figure; phasor; Circuit noise; Equivalent circuits; FETs; HEMTs; Noise figure; Noise generators; Noise measurement; Numerical analysis; Performance analysis; Radio frequency;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.700690
