Title :
Stabilisation approach for multi-device parallel power amplifiers under large-signal regime
Author :
Pantoli, Leonardo ; Leuzzi, Giorgio ; Santarelli, Alberto ; Filicori, Fabio ; Giofrè, Rocco
Author_Institution :
Dept. of Electr. & Inform. Eng., Univ. of L´´Aquila, L´´Aquila, Italy
Abstract :
This paper describes a method for the detection of instabilities and their stabilisation under large-signal regime in multi-device paralleled power amplifiers. The symmetry of the amplifier is exploited for a simple and effective characterisation of odd- and even-order modes, and their reduction to equivalent single-transistor amplifiers. The nonlinear stability is then assessed by use of the conversion matrix. Examples of application are also given.
Keywords :
power amplifiers; stability; conversion matrix; large-signal regime; multidevice parallel power amplifiers; nonlinear stability; single-transistor amplifiers; stabilisation approach; Microwave amplifiers; Microwave circuits; Microwave oscillators; Power amplifiers; Stability analysis; Transistors; amplifiers; nonlinear circuits; stability;
Conference_Titel :
Microwave Integrated Circuits Conference (EuMIC), 2011 European
Conference_Location :
Manchester
Print_ISBN :
978-1-61284-236-3
