Title :
Optimized compact active downconverters having low power consumption and high conversion gain
Author :
Kumar, B.P. ; Branner, G.R. ; Xu, D. ; Ching, A.
Author_Institution :
Dept. of Electr. & Electron. Eng., California State Univ., Sacramento, CA, USA
fDate :
7/1/2002 12:00:00 AM
Abstract :
An in-depth technique for modeling, optimized design, and fabrication of compact, active low power downconverters, operating at /spl sim/1 GHz, is presented in this paper. The designs employ precision computer models of active devices, developed to assist in providing optimal self oscillating mixer based designs. The designs yield measured conversion gains of up to 9 dB (for maximum bias power of 17.3 mW) and 6.5 dB (for maximum bias power as low as 1.7 mW).
Keywords :
S-parameters; UHF bipolar transistors; UHF frequency convertors; UHF mixers; circuit CAD; circuit optimisation; circuit simulation; low-power electronics; nonlinear network synthesis; 1 GHz; 1.7 mW; 17.3 mW; 6.5 dB; 9 dB; CAD models; S parameters; bipolar transistor; circuit simulation; compact active downconverters; fabrication; harmonic balance based computer program; high conversion gain; internal oscillator; low power consumption; nonlinear physics based model; optimized design; precision computer models; self oscillating mixer; Circuits; Design optimization; Energy consumption; Gain measurement; Local oscillators; MESFETs; Mixers; Power measurement; Power system modeling; Radio frequency;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2002.800850
