Wideband highly linear LNA using modified cascode for simultaneous input and noise matching technique

被引：1
|
作者：
Park, Seung Pyo [1 ]
Lee, Moon-Que [1 ]
Lee, Han Lim [2 ]
机构：
[1] Univ Seoul, Sch Elect Engn & Comp Sci, 163 Siripdae Ro, Seoul 02504, South Korea
[2] Chung Ang Univ, Sch Elect & Elect Engn, 84 Heukseok Ro, Seoul 06974, South Korea
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2017年 / 59卷 / 01期
关键词：
low-noise amplifier; amplifier linearization; simultaneous input and noise matching; RFIC; MMIC; DERIVATIVE SUPERPOSITION METHOD;
D O I：
10.1002/mop.30216
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：
In this letter, a highly linear low-noise amplifier (LNA) MMIC configured by a modified cascode structure with the operation band from 1.8 GHz to 2.8 GHz is proposed. The modified cascode structure adopts inductive degeneration and an additional transistor used for linearity enhancement and simultaneous input and noise matching. Also, the resistive feedback at the input and inductive peaking at the output are applied to ensure the stability over the wideband operation. The proposed LNA MMIC was implemented by 0.5m GaAs pHEMT process and showed the measured input third-order intercept point (IIP3) of 15.5 +/- 1.3 dBm, gain of 16.3 +/- 2.2 dB, output P-1-dB of 16.7 +/- 0.3 dBm and noise figure (NF) of 1 +/- 0.2 dB from 1.8 GHz to 2.8 GHz . (c) 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:15-17, 2017
引用
收藏
页码：15 / 17
页数：3
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