49% efficiency power amplifier MMIC utilizing SrTiO3 capacitors for 3.5 V Li-ion battery operated CDMA cellular phones

被引：2
|
作者：
Iwata, N [1 ]
Yamaguchi, K [1 ]
Nishimura, TB [1 ]
Takemura, K [1 ]
Miyasaka, Y [1 ]
机构：
[1] NEC Corp Ltd, Kansai Elect Res Labs, Otsu, Shiga 5200833, Japan
来源：
1998 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS (RFIC) SYMPOSIUM | 1998年
关键词：
D O I：
10.1109/RFIC.1998.682049
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 describes 840 MHz IS-95 power performance of a two-stage power amplifier MMIC with 2.0x1.5 mm(2) area utilizing double-doped AlGaAs/InGaAs/AlGaAs FETs and SrTiO3 capacitors. Under 3.5 V operation, the developed MMIC including input matching, inter-stage matching and bias circuits delivered an output power of 0.93 W (29.7dBm), a power-added efficiency (PAE) of 48.6 % and an associated gain of 28.4 dB with an adjacent channel leakage power of -42 dBc at 0.9 MHz off-center frequency. Even operated at a reduced supply voltage of 1.2 V, a high PAE of 46.9 % was obtained.
引用
收藏
页码：65 / 68
页数：4
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