Adaptive multi-band multi-mode power amplifier using integrated varactor-based tunable matching networks

被引:150
作者
Neo, W. C. Edmund [1 ]
Lin, Yu
Liu, Xiao-dong
de Vreede, Leo C. N.
Larson, Lawrence E.
Spirito, Marco
Pelk, Marco J.
Buisman, Koen
Akhnoukh, Atef
de Graauw, Anton
Nanver, Lis K.
机构
[1] Delft Univ Technol, DIMES Inst, NL-2628 CT Delft, Netherlands
[2] Univ Calif San Diego, La Jolla, CA 92093 USA
[3] Philips Semicond, NL-6534 AE Nijmegen, Netherlands
关键词
adaptive matching network; dynamic loadline; high efficiency; multi-band; multi-mode; power amplifier; RF adaptivity;
D O I
10.1109/JSSC.2006.880586
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents a multi-band multi-mode class-AB power amplifier, which utilizes continuously tunable input and output matching networks integrated in a low-loss silicon-on-glass technology. The tunable matching networks make use of very high Q varactor diodes (Q > 100 @ 2 GHz) in a low distortion anti-series configuration to achieve the desired source and load impedance tunability. A QUBIC4G (SiGe, f(t) = 50 GHz) high voltage breakdown transistor (V-CBO = 14V, V-CEO > 3.6 V) is used as active device. The realized adaptive amplifier provides 13 dB gain, 27-28 dBm output power at the 900, 1800, 1900 and 2100 MHz bands. For the communication bands above I GHz optimum load adaptation is facilitated resulting in efficiencies between 30%-55% over a 10 dB output power control range. The total chip area (including matching networks) of the amplifier is 8 mm(2).
引用
收藏
页码:2166 / 2176
页数:11
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