EER architecture specifications for OFDM transmitter using a class E amplifier
- 26 July 2004
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Wireless Components Letters
- Vol. 14 (8) , 389-391
- https://doi.org/10.1109/LMWC.2004.832618
Abstract
This letter presents envelope elimination and restoration (EER) architecture specifications in the case of orthogonal frequency division multiplex C band transmission. A key point is the recombination of envelope and phase information by supply modulation of the power amplifier (PA). Imperfections, such as time mismatch and phase noise can reduce the performances of the transmission. Compression and conversion effects when supply modulating the PA are introduced in this letter with the simulation of a class E power amplifier. This amplifier was designed under HP-ADS using a nonlinear MESFET model. Results are reported in terms of error vector measurement and spectrum for two different numbers of sub-carriers 32 and 128 in 16-QAM and 64-QAM cases.Keywords
This publication has 3 references indexed in Scilit:
- Idealized operation of the class E tuned power amplifierIEEE Transactions on Circuits and Systems, 1977
- Class E-A new class of high-efficiency tuned single-ended switching power amplifiersIEEE Journal of Solid-State Circuits, 1975
- Single-Sideband Transmission by Envelope Elimination and RestorationProceedings of the IRE, 1952