Efficient Supply Modulator for Wide-Band Envelope Elimination and Restoration Power Amplifiers

Autor:	Mohamed M. Aboudina, Ahmed N. Mohieldin, Ahmed Mamdouh, Faisal Hussien
Rok vydání:	2020
Předmět:	CMOS Computer science Modulation Amplifier Adjacent channel Electronic engineering Linearity Transient response Electrical and Electronic Engineering Process corners Leakage (electronics)
Zdroj:	IEEE Transactions on Circuits and Systems II: Express Briefs. 67:9-13
ISSN:	1558-3791 1549-7747
Popis:	A fast transient response supply modulator has been realized and verified in envelope elimination and restoration (EER) power amplifier. The analysis and detailed design of the proposed architecture is presented. Simulation results, in 130-nm CMOS technology, show that the proposed supply modulator achieves better linearity and efficiency compared to the conventional hybrid mode supply modulators or hybrid EER when signal frequency increases. Adjacent channel leakage ratio requirements are met for an LTE signal with 5 MHz, 10 MHz, and 20 MHz BW with error vector magnitude less than 3% and efficiency of 79%, 73%, and 67%, respectively at an output power of 0.45 W. Post-layout simulations are performed across different process corners and the effects of real off-chip components and routes are taken into consideration to verify the robustness of the proposed solution.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b88f184df639975d060295d4ff06b0c8 https://doi.org/10.1109/tcsii.2019.2900596 Zobrazit plný text záznamu