Title :
InP HBT for portable wireless radio technologies
Author :
Malkemes, R.C. ; Izadpanah, Hossein
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
We look at the benefit of using InP semiconductor technology to improve the overall efficiency of the RF power amplifier and present experimental prototype and simulation results for a Personal Access Communications System (PACS) subscriber unit (SU) transmitter RF power amplifier. Transmitter spectral spreading, or spectral regrowth, and adjacent channel power ratio, ACPR variations using experimental and simulation results based on Bellcore´s InP HBT technologies are presented. The relationship of the amplifier 1 dB compression point and third order intermodulation distortion intercept point, IP3, on the spectral regrowth is presented. A technique to improve the amplifier power added efficiency and simultaneously reduce the battery current is suggested and verified by simulation
Keywords :
III-V semiconductors; UHF power amplifiers; heterojunction bipolar transistors; indium compounds; intermodulation distortion; mobile radio; personal communication networks; radio transmitters; semiconductor technology; subscriber loops; 1 dB compression point; ACPR variations; Bellcore; HBT technologies; III-V semiconductor; InP; Personal Access Communications System; RF power amplifier efficiency; adjacent channel power ratio; battery current reduction; experimental prototype; experimental results; portable wireless radio technologies; power added efficiency; semiconductor technology; simulation results; spectral regrowth; subscriber unit transmitter; third order intermodulation distortion intercept point; transmitter spectral spreading; Heterojunction bipolar transistors; Indium phosphide; Intermodulation distortion; Picture archiving and communication systems; Power amplifiers; Radio frequency; Radio transmitters; Radiofrequency amplifiers; Semiconductor optical amplifiers; Virtual prototyping;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1996. PIMRC'96., Seventh IEEE International Symposium on
Print_ISBN :
0-7803-3692-5
DOI :
10.1109/PIMRC.1996.567554
