Title :
On Design and Performance of Lossy Match GaAs MESFET Amplifiers
Abstract :
The noise figure, the gain, and the reflection coefficients of lossy match amplifiers and their dependence on circuit elements are studied. Theoretical results are supported by measured data taken on a two-stage unit. In addition, the performance characteristics of a 100-8800 MHz four-stage lossy match amplifier are discussed. The unit exhibits 23.3 +- 1.1 dB of gain over the nearly 6-1/2 octaves. Its maximum noise figure is 10.9 dB from 100-8800 MHz and 6.6 dB from 2000-8000 MHz. The amplifier´s overall circuit dimensions are 10 X 5.7 mm..
Keywords :
Acoustic reflection; Broadband amplifiers; Circuits; Distributed amplifiers; Gallium arsenide; Impedance; MESFETs; Noise figure; Performance gain; Performance loss;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.1982.1131341
