Title :
Current dumping: a novel linearisation technique for RF power transistors
Author :
Sandhiya, P. ; Snowden, C.M. ; Pollard, R.D. ; Ranson, R.G.
Author_Institution :
Inst. of Microwaves & Photonics, Leeds Univ., UK
Abstract :
A novel 1 GHz MMIC linearised RF power amplifier is presented. The current dumping linearisation technique achieves a minimum of 29 dB intermodulation suppression over a bandwidth of 600 MHz employing only passive lumped components and an error amplifier. This novel technology demonstrates low sensitivity to variations in circuit element values and enables a significant reduction in circuit size at RF frequencies.
Keywords :
MMIC power amplifiers; UHF integrated circuits; UHF power amplifiers; feedback amplifiers; intermodulation distortion; linearisation techniques; 1 GHz; 600 MHz; MMIC; RF power transistors; circuit element values; circuit size; current dumping; error amplifier; intermodulation suppression; linearisation technique; linearised RF power amplifier; passive lumped components; Broadband amplifiers; Circuits; Distortion; Impedance; Linearization techniques; MMICs; Power amplifiers; Power transistors; Radio frequency; Radiofrequency amplifiers;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.779884
