Title :
Enhanced RF power amplifiers and device characterization setups using coherent mixed-signal techniques
Author :
De Vreede, L. E N ; Pelk, M. ; Neo, E. ; Qureshi, J. ; Spirito, M. ; Squillante, M. ; Marchetti, Mirco
Author_Institution :
Dimes, Delft Univ. of Technol., Delft, Netherlands
Abstract :
Coherent mixed-signal techniques are applied in high-performance N-way Doherty and outphasing amplifier configurations, as well as, in advanced Large-signal RF device characterization systems. These new techniques provide optimum input signal control of the individual branch amplifiers, yielding improved efficiency in power back-off operation and higher bandwidths. When using coherent-mixed signal techniques in Large-Signal device characterization applications, ultra-fast device testing and device characterization with realistic wide-band modulated signals becomes feasible.
Keywords :
mixed analogue-digital integrated circuits; power amplifiers; radiofrequency amplifiers; branch amplifiers; coherent mixed-signal techniques; high-performance N-way Doherty; optimum input signal control; outphasing amplifier; power back-off operation; radiofrequency power amplifiers; ultra-fast device testing; wide-band modulated signals; Bandwidth; Broadband amplifiers; High power amplifiers; Operational amplifiers; Power amplifiers; RF signals; Radio frequency; Radiofrequency amplifiers; Testing; Voltage; Doherty; Load-pull; Mixed-signal; Outphasing; Power Amplifiers;
Conference_Titel :
Wireless and Microwave Technology Conference (WAMICON), 2010 IEEE 11th Annual
Conference_Location :
Melbourne, FL
Print_ISBN :
978-1-4244-6688-7
DOI :
10.1109/WAMICON.2010.5461858
