Techniques of envelope tracking transmitter for base-station and mobile applications

In this paper, we propose enhanced architectures of an envelope tracking (ET) transmitter. For base-station applications, high efficient ET transmitter architectures are implemented using optimized power amplifier (PA) with a 2-bit envelope amplifier (EA) and a multi-biased linear EA. In addition, f...

Full description

Saved in:
Bibliographic Details
Main Authors: Son, Hyuk Su, Kim, Joon Hyung, Kim, Woo Young, Jang, Joo Young, Oh, Inn Yeal, Park, Chul Soon
Format: Conference Proceeding
Language:English
Subjects:
Capacitance
CMOS integrated circuits
Envelope amplifier (EA)
envelope tracking (ET)
linearizer
Mobile communication
multi-band
power amplifier (PA)
Power amplifiers
Regulators
Switches
Transmitters
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, we propose enhanced architectures of an envelope tracking (ET) transmitter. For base-station applications, high efficient ET transmitter architectures are implemented using optimized power amplifier (PA) with a 2-bit envelope amplifier (EA) and a multi-biased linear EA. In addition, fully integrated multi-band/multi-mode ET transmitter is implemented using a multi-band PA incorporating an integrated on-chip linearizer with a multi-mode dual-switching EA for mobile applications. ET transmitters that achieve an overall efficiency as high as 47.8% in 10MHz LTE base-station and 28% in 5MHz LTE mobile applications are presented.
ISSN:2165-4727
2165-4743