A Low Power Driver Amplifier for Unlicensed 2.4 GHz Band

被引：2
|
作者：
Le, Viet-Hoang [1 ]
Han, Seok-Kyun [1 ]
Lee, Sang-Gug [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, U Radio Lab, Dept Elect Engn, Taejon 305701, South Korea
来源：
IEICE TRANSACTIONS ON ELECTRONICS | 2011年 / E94C卷 / 01期
关键词：
current reuse; driver amplifier; high drain efficiency; high PAE; low power transmitter; CMOS; RF;
D O I：
10.1587/transele.E94.C.120
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 the design of a driver amplifier (DA) for a cordless mouse application, operating at the 2.4 GHz ISM unlicensed band. The DA is a single-ended topology, and is composed of two stages: the first stage is a cascode amplifier to provide high gain and good input-output isolation, while the output stage is a simple common source amplifier that adopts a novel current reuse scheme to reduce the DC bias current by half. The DA implemented in a 0.18 mu m CMOS process has a 16 dB gain at 2.4 GHz, and it can drive a 3 dBm to the antenna with an output stage drain efficiency of 31% and a power-added efficiency (PAE) of 20% while drawing 4.5 mA from a 1.8 V supply.
引用
收藏
页码：120 / 123
页数：4
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