@inproceedings{e6c99f82ba274d979f3c680d8be518ee,
title = "Linearized saturation amplifier with bidirectional control (LSA-BC) for digital mobile radio",
abstract = "The design and performance of the LSA-BC, a novel power amplifier, are presented. A linear amplifier with the high efficiency of a switching-mode saturation amplifier can be realized. A high-efficiency GaAs FET is roughly linearized by dynamically varying its drain DC voltage with a high-efficiency variable-output DC-DC converter. A negative envelope feedback is utilized to compensate for the residual. The circuit construction is simple enough for use in the portable subscriber units of a digital mobile radio system. A 1.5-GHz-band 1-W LSA-BC was constructed to determine its performance with 32-kb/s roll-off QPSK (quadrature phase-shift keying). As a result, a 40% total efficiency is achieved as well as a stable third-order intermodulation distortion of -50 dB to the signal level.",
author = "Kohji Chiba and Toshio Nojima and Shigeru Tomisato",
year = "1990",
month = dec,
day = "1",
language = "English",
isbn = "0879426322",
series = "IEEE Global Telecommunications Conference and Exhibition",
publisher = "Publ by IEEE",
pages = "1958--1962",
booktitle = "GLOBECOM '90",
note = "IEEE Global Telecommunications Conference & Exhibition Part 3 (of 3) ; Conference date: 02-12-1990 Through 05-12-1990",
}