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

Volume

12

Issue

7

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

270

Lastpage

272

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;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2002.800850

Filename

1016820