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 + or - 1.1 dB of gain over the nearly 6-1/2 octaves. It 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.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- November 1982
- DOI:
- 10.1109/TMTT.1982.1131341
- Bibcode:
- 1982ITMTT..30.1900N
- Keywords:
-
- Amplifier Design;
- Broadband Amplifiers;
- Field Effect Transistors;
- Gallium Arsenides;
- Performance Prediction;
- Schottky Diodes;
- Frequency Response;
- Lossy Media;
- Metal Surfaces;
- Noise Intensity;
- Noise Spectra;
- Power Gain;
- Spectral Reflectance;
- Transistor Amplifiers;
- Electronics and Electrical Engineering