A new method of broad-band equalization applied to microwave amplifiers
Abstract
A new approach to broad-band matching which bypasses analytic gain-bandwidth theory and directly utilizes measured real frequency impedance data is applied to gain equalization and low-noise design of GaAs Schottky-barrier FET amplifiers. Neither the equalizer topology nor the analytic form of the system transfer function are initially assumed. These result from the design process. Examples include an octave-band FET amplifier design and a low-noise FET amplifier design. The equalizers are realized with lumped elements or transmission-line sections. A single basic least squares program implements the design procedure.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- February 1979
- DOI:
- 10.1109/TMTT.1979.1129569
- Bibcode:
- 1979ITMTT..27...93C
- Keywords:
-
- Amplifier Design;
- Broadband Amplifiers;
- Equalizers (Circuits);
- Field Effect Transistors;
- Impedance Matching;
- Microwave Amplifiers;
- Computer Aided Design;
- Gallium Arsenides;
- Least Squares Method;
- Low Noise;
- Schottky Diodes;
- Transfer Functions;
- Transistor Amplifiers;
- Electronics and Electrical Engineering